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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4464. Отображено 199.
21-04-2020 дата публикации

СПОСОБ ПОЛУЧЕНИЯ АЦИЛФОСФАТОВ

Номер: RU2719592C2
Принадлежит: ЭТХ ЦЮРИХ (CH)

Настоящее изобретение относится к новым фотоинициаторам и способу их получения, которые могут быть использованы в химической промышленности. Предложен способ получения соединений формулы (I):где n равен от 1 до 3, m равен 2, Rпредставляет собой фенил, необязательно имеющий до трех заместителей, выбранных из фтора, С1-8алкила, С1-8перфторлкила, С1-8алкокси, С1-8перфторалкокси и фенила, Rотсутствует, Rпри n, равном 1, представляет собой заместитель формулы (IIa) или (IIb)-CR-CH(Z)(R) (IIa), CR-N(R)(IIb),Rпри n, равном 2-3, представляет собой заместитель формулы (IIe)R*[CHR-C(R)-](IIe),где Cсвязан с атомом фосфора, Rи Rнезависимо представляют собой Н, Z или R, Z выбран из -CN, -(CO)OH, -(CO)OR, -(CO)NH(R), -(CO)N(R), -(SO)R, -(PO)(R)или пиридинила, Rнезависимо представляет собой C-C-алкил, C-C-алкенил или фенил, или два Rвместе представляют собой алкандиил, где алкил и алкандиильные заместители не прерываются или прерываются не подряд группами, выбранными из -O-, -NR-, и необязательно замещены ...

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15-11-2018 дата публикации

Номер: RU2017110477A3
Автор:
Принадлежит:

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10-10-2013 дата публикации

ПОЛИМЕРНАЯ ДИСПЕРСИЯ

Номер: RU2495053C2
Принадлежит: АКЦО НОБЕЛЬ Н.В. (NL)

Изобретение относится к водной полимерной дисперсии, способу ее получения, ее применению и способу получения бумаги. Водная полимерная дисперсия для использования в качестве флоккулянта при изготовлении бумаги или для очистки воды содержит анионный растворимый в воде дисперсионный полимер, включающий в полимеризованной форме мономерную смесь, содержащую (i) один или несколько анионных мономеров, (ii) первый неионный винильный мономер, который представляет собой акриламид, и (iii) по меньшей мере, один второй неионный винильный мономер; растворимую в воде соль и стабилизатор, где растворимая в воде соль присутствует в количестве, равном, по меньшей мере, 2,0% мас. в расчете на совокупную массу дисперсии, и где мономерная смесь содержит от приблизительно 1 до приблизительно 40% мол., анионного мономера, от приблизительно 20 до приблизительно 98% моль, акриламида и от приблизительно 1 до приблизительно 40% мол., второго неионного винильного мономера, при этом сумма процентных содержаний составляет ...

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27-04-2007 дата публикации

ПОЛИМЕРЫ НА ОСНОВЕ ДИКАРБОНОВОЙ КИСЛОТЫ И ИХ ПРИМЕНЕНИЕ

Номер: RU2260604C9

Изобретение относится к новым анионным, биодеградируемым, водорастворимым полимерам и их производным, которые могут использоваться в сельском хозяйстве. Описывается водорастворимый биодеградируемый полимер, включающий повторяющиеся дикарбоновые полимерные звенья по крайней мере из двух разных фрагментов, выбранных из группы фрагментов А, В и С (см. Приложение), причем указанные полимерные звенья образованы из фрагментов А, В, С, а также способ его получения. Описывается удобрение, в котором частицы удобрения находятся в тесном контакте с указанным полимером. Также раскрывается способ улучшения роста растений при помощи композиции, содержащей указанный полимер, способ уменьшения улетучивания азота из удобрения путем нанесения указанного полимера, способ увеличения доступности фосфора, включающий стадию нанесения указанного полимера на удобрение. Описывается также композиция для усиления роста растений, семенной продукт, в котором семя находится в тесном контакте с полимером, и способ повышения ...

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28-06-2007 дата публикации

Production of vinyl-lactam copolymers for use e.g. in pharmaceuticals or cosmetics, involves copolymerisation of water-soluble vinyl-lactam and comonomer with distillation of solvent before complete conversion

Номер: DE102006056203A1
Принадлежит:

A method for the production of vinyl-lactam copolymers (I) by radical polymerisation of water-soluble N-vinyl-lactams (NVL) and hydrophobic comonomers in refluxing organic solvent in presence of initiators, involves distilling off some of the solvent after 90-99 wt% conversion of the NVL and then continuing the polymerisation.

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20-12-1979 дата публикации

Номер: DE0001914756B2

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28-06-2007 дата публикации

Method for producing vinyl lactam copolymer for cosmetics, involves free-radical polymerizing water-soluble N-vinyl lactam(s) and hydrophobic comonomer(s), in organic solvent, in presence of initiator, at preset conditions

Номер: DE102006056206A1
Принадлежит:

Free-radical polymerization of at least one of water-soluble N-vinyl lactam and at least one of hydrophobic comonomer, is carried out in an organic solvent, in presence of initiator under reflux conditions, such that at least 10 mol% of N-vinyl lactam is added to polymerization mixture after at least 90 mol% of hydrophobic monomer is completely reacted. Thus, a vinyl lactam copolymer is produced.

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21-04-2016 дата публикации

Verwendung von in Wasser redispergierbaren Polymerpulver-Zusammensetzungen mit kationischer Funktionalität als Flockungshilfsmittel

Номер: DE102014220859A1
Принадлежит:

Gegenstand der Erfindung ist die Verwendung von in Wasser redispergierbaren Polymerpulver-Zusammensetzungen mit kationischer Funktionalität als Flockungshilfsmittel, beispielsweise für die Entwässerung von mit Feststoffen beladenen Wassern oder Abwässern.

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02-02-2012 дата публикации

Verfahren zur Herstellung von Vinylacetat-Ethylen-Mischpolymerisaten mittels Emulsionspolymerisation

Номер: DE102010038788A1
Принадлежит:

Gegenstand der Erfindung sind Verfahren zur Herstellung von Vinylacetat-Ethylen-Mischpolymerisaten mittels radikalisch initiierter Emulsionspolymerisation von Vinylacetat, Ethylen und gegebenenfalls weiteren Comonomeren in Gegenwart von mindestens einem Schutzkolloid und mindestens einem Emulgator, dadurch gekennzeichnet, dass die Vinylacetat-Ethylen-Mischpolymerisate 21 bis 45 Gew.-% an Ethylen-Einheiten, bezogen auf das Gesamtgewicht der Vinylacetat-Ethylen-Mischpolymerisate, enthalten und die radikalisch initiierte Emulsionspolymerisation in Gegenwart von 0,1 bis 20 Gew.-%, bezogen auf das Gesamtgewicht der insgesamt eingesetzten Monomere, an einem oder mehreren Alkylalkoholen enthaltend 1 bis 5 C-Atome und 0,5 bis 4 Gew.-%, bezogen auf das Gesamtgewicht der insgesamt eingesetzten Monomere, an einem oder mehreren anionischen Sulfobernsteinsäureestern der allgemeinen Formel R1-O-CO-CH2-CH(SO3M)-CO-O-R1 (I)durchgeführt wird, worin M ein Kation, R1 ein linearer oder verzweigter Alkylrest ...

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29-06-1989 дата публикации

Номер: DE0002703653C2

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14-12-1978 дата публикации

Номер: DE0001645063C3

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27-01-1972 дата публикации

Номер: DE0002035707A1
Автор:
Принадлежит:

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03-06-1971 дата публикации

Номер: GB0001233837A
Автор:
Принадлежит:

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12-06-1968 дата публикации

A polymer latex for coating fabrics

Номер: GB0001116909A
Автор:
Принадлежит:

A latex composition suitable for application to a woven fabric comprises an aqueous medium having dispersed therein a vinyl acetate-ethylene-N-methylolacrylamide interpolymer, said interpolymer containing 5-40% by weight of ethylene and, preferably, having a methylolacrylamide content of 0.5-10% by weight, with reference to the amount of vinyl acetate. The interpolymer preferably has a particle size of 0.1 to 2m . The composition is prepared by polymerizing the corresponding monomers in aqueous dispersion, preferably at a pH of 2 to 6 in the presence of a catalyst and emulsifying agent; in the preferred procedure an aqueous suspension of vinyl acetate is agitated in the presence of ethylene under pressure to effect dissolution of ethylene in the vinyl acetate while gradually heating the latter, and then catalyst and methylolacrylamide are added incrementally. Suitable catalysts include hydrogen peroxide, benzoyl peroxide, t-butyl hydroperoxide, ammonium or potassium persulphate and perborates ...

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16-01-2002 дата публикации

Method for producing saponified ethylene-vinyl acetate copolymer and removal of vinyl acetate therefrom.

Номер: GB0002364060A
Принадлежит:

The present invention provides methods for producing an ethylene-vinyl acetate copolymer and a saponified product thereof that can inhibit visible imperfections (particularly discoloration) at the time of molding by improving the process for recovering vinyl acetate. When the alcohol-based solvent to be blown in when recovering vinyl acetate is deoxidized so that its oxygen concentration becomes not more than 60 ppm, discoloration of a molded product of the above saponified product due to oxygen can be inhibited.

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30-03-1967 дата публикации

Stabilizer for plastic foam

Номер: GB0001063823A
Автор:
Принадлежит:

A method of preparing a foam stabilizer oil, effective in modifying compositions transformable into rigid polyurethane foam to permit retention of at least 65% of the gas volume generated during polyurethane foam formation, comprises catalytically co-polymerizing a precursor composition consisting predominantly of a plurality of monomers having polymerizable ethylenic groups, from 17 mole per cent to 67 mole per cent of said plurality of monomers being water-miscible compounds having one or more water-solubilizing groups extending from polymerizable ethylenic groups, from 17 mole per cent to 67 mole per cent of said plurality of monomers being plasticizing compounds having one or more groups of at least 4 carbon atoms extending from polymerizable ethylenic groups and from 17 mole per cent to 67 mole per cent of said plurality of monomers being compact compounds in which each group extending from a polymerizable ethylenic group has not more than 2 carbon atoms, said precursor composition ...

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26-06-1991 дата публикации

COPOLYMERS FROM POLYALKYLENE OXIDES CONTAINING AN ALLYL GLYCIDYL ETHER REACTIVE DOUBLE BOND AND VINYL ACETATE

Номер: GB0002239249A
Принадлежит:

A copolymer based on vinyl acetate and polyalkylene oxide(s) containing an allyl glycidyl ether reactive double bond has the general formula wherein R is a polyalkylene oxide, R<1> and R<2> are end groups, and x is equal to or greater than y. The copolymers and compositions of matter containing the copolymer uniformly dispersed in a hydroxyl group-containing compound may be used for the manufacture of urethanes.

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22-08-2001 дата публикации

Method for producing saponified ethylene-vinyl acetate copolymer

Номер: GB0000115991D0
Автор:
Принадлежит:

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24-10-1973 дата публикации

VINYL ACETATE GRAFT COPOLYMERS AND THE MANUFACTURE THEREOF

Номер: GB0001335139A
Автор:
Принадлежит:

... 1335139 Styrene grafted on to a vinyl acetate/ acrylic copolymer WESTVACO CORP 7 July 1971 [3 Aug 1970] 31979/71 Heading C3G A graft polymer comprises a base polymer comprising (based on the graft polymer overall) 40-60 wt. per cent vinyl acetate units, 5-25 wt. per cent of units of an aliphatic ester of an alpha, betamonoethylenically unsaturated monocarboxylic acid, and 1-5 wt. per cent of units of at least one monoethylenically unsaturated monocarboxylic acid, on to which is grafted styrene, so that the graft copolymer also comprises 10-40 wt. per cent of styrene units. Examples of the esters are methyl methacrylate, ethyl methacrylate, methyl acrylate, ethyl acrylate, 2-ethyl hexyl acrylate, and butyl acrylate. Examples of the acids are acrylic, methacrylic, and itaconic acid, a preferred mixture of which is a mixture of acrylic and methacrylic acids. The polymers may be prepared by initiating copolymerization at 65-70‹ C. of the monomers for the backbone polymer dispersed in water ...

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02-06-1965 дата публикации

A process for the manufacture of terpolymers of vinylidene cyanide

Номер: GB0000993718A
Автор:
Принадлежит:

Terpolymers in which the monomers are arranged in alternating sequence are prepared by polymerizing vinylidene cyanide, a vinyl or vinylidene monomer (other than vinylidene cyanide) and a vinyl sulphonic or phosphonic acid or halide thereof under the action of a free radical polymerization initiator in an inert anhydrous organic solvent that prevents an ionic homopolymerization of the vinylidene cyanide. The vinyl or vinylidene monomer may be vinyl acetate. The terpolymer may comprise 40-60 mol. per cent of the cyanide, 60-40 mol. per cent of the vinyl or vinylidene monomer and less than 10 mol. per cent of the acid or halide which may be an acid fluoride or chloride. The solvent may be glacial acetic acid. The weight ratio of monomer mixture to solvent may be 1: 0.3-14 and the vinyl (or vinylidene) monomer may be used in excess. The polymerization initiator may be azoisobutyric acid dinitrile or 2: 4-dichlorobenzoyl peroxide. The terpolymer may be formed into filaments, fibres and films ...

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19-07-1967 дата публикации

Polymers capable of self-curing at room temperature

Номер: GB0001076051A
Автор:
Принадлежит:

Polymers capable of self-curing at room temperature are prepared by heating together at temperatures up to 90 DEG C., in the presence of an addition polymerization catalyst, a mixture consisting of a monoethylenically unsaturated compound free from groups which react with the glycidyl epoxy group, a glycidyl ester of an ethylenically unsaturated carboxylic acid, and a monoethylenically unsaturated compound containing a group which reacts with the glycidyl epoxy group, the latter two compounds being present in quantities such that the numerical product of their mole-per cent concentrations in said mixture lies within the range of 10 to 30, said concentrations being at least 1 mole-per cent for the minor component and not more than about 20 mole-per cent for the two components added together; the major portion of the last two components being added to the polymerization mixture in gradual manner after the polymerization has begun. Monomers of the first mentioned type above include esters ...

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05-11-1969 дата публикации

Improvements in or relating to Hair Fixing Resin Compositions

Номер: GB0001169862A
Автор:
Принадлежит:

... 1,169,862. Hair s p r a y . NATIONAL STARCH & CHEMICAL CORP. 15 March, 1968 [23 March, 1967], No. 12747/68. Heading A5B. [Also in Divisions C3 and C4] An aerosol hair spray formulation and a wave setting lotion contain a film-forming copolymer of vinyl acetate, crotonic acid and at least one vinyl ester of an alpha-branched saturated aliphatic monocarboxylic acid having a minimum of five carbon atoms in the carboxylic acid moiety, the acid having the form R 1 R 2 R 3 CCOOH wherein R 1 and R 2 are alkyl radicals and R 3 is selected from hydrogen, alkyl, alkaryl, aralkyl and aryl radicals.

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17-07-1991 дата публикации

INTERPOLYMER DISPERSIONS FROM VINYL ESTER OF PIVALIC ACID,VINYL ACETATE AND ALKYLENE

Номер: GB0009111496D0
Автор:
Принадлежит:

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12-05-1971 дата публикации

Номер: GB0001231452A
Автор:
Принадлежит:

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05-01-1978 дата публикации

THERMALLY SELF-CROSSLINKING COPOLYMERS

Номер: GB0001496867A
Автор:
Принадлежит:

... 1496867 Self - crosslinking copolymers WACKER-CHEMIE GmbH 19 March 1976 [21 March 1975 17 Nov 1975] 11156/76 Heading C3P Thermally self-crosslinking copolymers comprise units of (a) 5-50% by weight ethylene, (b) 30-87% vinyl acetate, (c) 2-10% a mono-olefinically unsaturated N-methylol compound or an ether thereof, (d) 5-20% a (meth)- aerylate ester of a saturated alcohol having up to 10 carbon atoms, (e) 0À5-3% a mono-olefinically unsaturated carboxylic acid, (f) optionally 0À001-1% a multiply olefinically unsaturated compound and (g) optionally up to 2% a further mono-olefinically unsaturated compound. Component (c) is suitably derived from acrylamide or methacrylamide; component (e) may be acrylic, methacrylic, crotonic, maleic or fumaric acid; component (f) is preferably allyl acrylate or methacrylate but may also be vinyl crotonate, a divinyl or diallyl ester, a di-(meth)acrylate ester, a bis(meth)- acrylamide or triallyl cyanurate; and component (g) may be acrylamide or vinyl sulphonic ...

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16-04-1980 дата публикации

Process for producing aqueous emulsions of vinyl chloride/vinyl ether/ethylene copolymer

Номер: GB0002030996A
Принадлежит:

An improved process for producing an aqueous emulsion of a vinyl chloride/vinyl ester/ethylene copolymer having a small heat fluidity and excellent strength which comprises continuously adding a solution of a specific polybasic acid polyallyl ester in the vinyl chloride and/or vinyl ester and further at least 60% by weight of the vinyl chloride and vinyl ester to the polymerization system during the polymerization reaction. The copolymer thus produced has a large benzene-insoluble part and the aqueous emulsion thereof is stable and is useful as an adhesive, as for paint compositions, or as a binder for fibers and papers.

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24-11-1982 дата публикации

PROCESS FOR THE PREPARATION OF AEROSOL LACQUER COPOLYMERS

Номер: GB0002034338B
Автор:
Принадлежит: OREAL, L'OREAL

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15-10-2008 дата публикации

LIQUID ALPHA OLEFIN/VINYLACETAT CONNECTIONS

Номер: AT0000410453T
Принадлежит:

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25-09-1972 дата публикации

Procedure for the production of paper caper masses

Номер: AT0000302016B
Принадлежит:

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15-06-2009 дата публикации

HIGH FREQUENCY-WELD-CASH AND COOLINGFLEXIBLE POLYMER MIXTURE AS WELL AS THEIR USE

Номер: AT0000431839T
Принадлежит:

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15-02-2012 дата публикации

POLYMERE AND POLYMER COMPOSITIONS

Номер: AT0000542842T
Принадлежит:

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27-12-1972 дата публикации

Procedure for the production of aqueous polymer dispersions

Номер: AT0000304071B
Принадлежит:

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15-08-2006 дата публикации

PROCEDURE FOR THE PRODUCTION OF ETHYL VINYL ACETATE COPOLYMERS

Номер: AT0000335018T
Принадлежит:

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25-08-1971 дата публикации

Procedure for the production of new copolymers

Номер: AT0000292301B
Принадлежит:

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19-01-2017 дата публикации

Self-wetting porous membranes (II)

Номер: AU2016202722A1
Принадлежит: Shelston IP Pty Ltd.

Disclosed is a self-wetting porous membrane comprising an aromatic hydrophobic polymer such as polysulfone and a wetting agent comprising a copolymer of formula A-B or A-B-A, wherein A is a hydrophilic segment comprising a polymerized monomer of the formula (1): CH,=C(R')(R), wherein R1 and R2 are as described herein, and B is polyethersulfone, wherein segments B and A are linked through an oxygen atom. Also disclosed is a method of preparing a self-wetting membrane comprising casting a solution containing an aromatic hydrophobic polymer and the wetting agent, followed by subjecting the cast solution to phase inversion. The self-wetting porous membrane finds use in hemodialysis, microfiltration, and ultrafiltration.

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12-07-2018 дата публикации

Coating composition with improved liquid stain repellency

Номер: AU2013402859B2
Принадлежит: Phillips Ormonde Fitzpatrick

A new coating composition comprising, by dry weight based on the total dry weight of the coating composition, i) from 12% to 80% of polymer particles comprising, as polymerized units, by dry weight based on the total dry weight of the polymer particles, from 25% to 90%, of a vinyl acetate; and from 5% to 75%, of a vinyl ester of versatic acid and/or a vinyl ester of 2-ethyl hexanoic acid; and ii) from 0.1% to 6% of a wax; and iii) from 14% to 55% of a pigment.

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02-03-2017 дата публикации

Vinyl acetate binders in an above-critical PVC coatings composition

Номер: AU2014402237A1
Принадлежит: Phillips Ormonde Fitzpatrick

The present invention is an above-critical coating composition comprising an aqueous dispersion of polymer particles, pigment particles, and extender particles wherein the polymer particles comprise from 80 to 99.8 weight percent structural units of vinyl acetate and from 0.1 to 6 weight percent structural units of a phosphorus acid monomer. The composition shows surprisingly improved hiding with increased particle size of the polymer particles.

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27-02-2020 дата публикации

Self-wetting porous membranes (I)

Номер: AU2016202721B2
Принадлежит: Shelston IP Pty Ltd.

Disclosed is a self-wetting porous membrane comprising an aromatic hydrophobic polymer such as polysulfone and a wetting agent comprising a copolymer of formula A-B or A-B-A, wherein A is a hydrophilic segment comprising a polymerized monomer of the formula (1): CH2=C(R')(R2), wherein R1 and R2 are as described herein, and B is an aromatic hydrophobic polymeric segment, wherein segments B and A are linked through an amidoalkylthio group. Also disclosed is a method of preparing a self-wetting membrane comprising casting a solution containing an aromatic hydrophobic polymer and the wetting agent, followed by subjecting the cast solution to phase inversion. The self-wetting porous membrane finds use in hemodialysis, microfiltration, and ultrafiltration.

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01-02-2018 дата публикации

Friction reducing polymers

Номер: AU2018200177A1
Принадлежит: Davies Collison Cave Pty Ltd

Described herein are friction reducing polymers comprising two or more recurring units wherein at least one recurring unit is an acrylic acid or acrylamide monomer and at least one recurring unit is a vinyl monomer selected from a vinyl alcohol, a vinyl ester, and a vinyl ether.

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03-09-1998 дата публикации

Polymer emulsions and polymer powders therefrom

Номер: AU0005289598A
Принадлежит:

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08-11-2001 дата публикации

ANIONIC VINYL/DICARBOXYLIC ACID POLYMERS AND USES THEREOF

Номер: CA0002407948A1
Принадлежит:

Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.

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08-04-2014 дата публикации

IMPROVED NVF COPOLYMER PROCESS

Номер: CA0002736873C

Disclosed herein is a water-soluble copolymer formed by copolymerizing N-vinylformamide and one or more vinyl C1-C10 alkyl esters, and then hydrolyzing from 30 to 100 mol% of the formyl groups from the copolymerized units to form amino groups and from 30 to 100 mol% of the C1-C10 alkyl ester groups from the copolymerized units to form hydroxyl groups, wherein the copolymer has a unimodal molecular weight distribution as evidenced by essentially one peak in a gel permeation gradient elution chromatographic analysis. A process to produce the polymer is also disclosed.

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13-01-1981 дата публикации

HEAT-COAGULABLE LATEX BINDERS AND PROCESS FOR THE PREPARATION THEREOF

Номер: CA1093725A

An improved latex binder for nonwoven webs comprising an acrylate- and/or vinyl acetate-based emulsion copolymer containing 0.1 10% by weight of 2-hydroxyethyl or 2-hydroxypropyl acrylate or methacrylate is prepared by employing in comblnation with the copolymer 0.2 - 10% by weight, on latex solids, of anionic surfactant and 0.3 15% by weight, on latex solids, of nonionic surfactant in selected relative proportions and by adding to the copolymer latex after polymerization 1 - 40% by weight, on latex solids, of a water-soluble salt. The resultant binder is characterized by being stable to coagulation at room temperature but coagulable at a temperature between 37 and 85.degree.C. In the preparation of nonwoven fiber material, a nonwoven web is impregnated with the copolymer latex binder, heated to a temperature of within 37 and 85.degree.C. sufficient to coagulate the binder within the web and thus prevent migration, and finally dried to form a chemically bonded, nonwoven fiber material in ...

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27-01-1981 дата публикации

PROCESS FOR THE PREPARATION OF DISPERSIBLE DISPERSION POWDERS

Номер: CA1094719A
Принадлежит: HOECHST AG, HOECHST AKTIENGESELLSCHAFT

HOE 76/F 065 PROCESS FOR THE PREPARATION OF DISPERSIBLE DISPERSION POWDERS of the disclosure: Dispersion powders having excellent properties for the production of synthetic resin-bound plasters in dry form are obtained by polymerizing vinyl acetate with other olefinically unsaturated monomers in the presence of an ionic emulsifier, a non-ionic emulsifier and at least one polyvinyl alcohol and spray drying the copolymer dispersion in a spray tower with simultaneous introduction of an anti-caking agent to obtain a fine powder.

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29-10-1985 дата публикации

WATER-SOLUBLE PARTIALLY SAPONIFIED COPOLYMERS BASED ON VINYL ACETATE AND METHYL ACRYLATE AND THEIR USE FOR DELAYING THE POLYMERIZATION OF STYRENE

Номер: CA1196122A
Принадлежит: BASF AG, BASF AKTIENGESELLSCHAFT

WATER-SOLUBLE PARTIALLY SAPONIFIED COPOLYMERS BASED ON VINYL ACETATE AND METHYL ACRYLATE AND THEIR USE FOR DELAYING THE POLYMERIZATION OF STYRENE By emulsion polymerization of vinyl acetate, methylacrylate,acrylic acid, monoolefinically unsaturated sulfoalkyl esters or amides and vinyl sulfonate and partial saponification of the resultant copolymer emulsion, an aqueous solution of a copolymer is obtained which greatly delays the polymerization of styrene in aqueous media.

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24-01-1995 дата публикации

HYDROPHOBIC CROSSLINKED COPOLYMER AND A METHOD FOR PRODUCING THE SAME

Номер: CA0001334119C

A hydrophobic crosslinked copolymer having a pendant group selected from , and , wherein R1 represents at least one hydrophobic group having a hydrophobic fragmental constant of at least 1.5, which copolymer has a high crosslinking monomer units content, a specific surface area and a specific acetonitrile regain value. The hydrophobic crosslinked copolymer has a high rigidity as well as an excellent mechanical strength and an excellent chemical stability so that the copolymer is useful as a packing for liquid chromatography, particularly reversed phase partition chromatography. This hydrophobic crosslinked copolymer can be advantageously produced by a method in which a crosslinked copolymer having a side chain of small length is first produced, and then a substitution reaction to introduce a hydrophobic group of large length is effected with respect to the side chain of small length.

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10-02-1976 дата публикации

POLYVINYL ACETATE AND MANUFACTURE THEREOF

Номер: CA0000983637A1
Автор: HUANG DENIS K
Принадлежит:

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15-06-2021 дата публикации

USE OF VINYL ACETATE-COPOLYMERS AS A SHRINKAGE-REDUCING ADDITIVE IN COLD-CURING SYSTEMS

Номер: CA3043240C
Принадлежит: WACKER CHEMIE AG

The invention relates to the use of vinyl acetate-copolymers as a shrinkage-reducing additive (low profile additive) in cold-curing systems for producing composite materials, characterized in that vinyl acetate-copolyerisate of 40 to 95 wt% vinyl acetate and 5 to 60 wt% of one or more co-monomers from the group containing vinyl esters of unbranched or branched carboxylic acids having 3 to 20 C-atoms and methacrylic acid esters and acrylic acid esters of unbranched or branched alcohols having 2 to 15 C-atoms are used, wherein the specifications in wt% relate to the total weight of the co-monomers and add up to 100 wt%.

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16-06-2020 дата публикации

COATING COMPOSITION WITH IMPROVED LIQUID STAIN REPELLENCY AND PROCESS FOR MAKING THE SAME

Номер: CA0002926144C
Принадлежит: ROHM & HAAS, ROHM AND HAAS COMPANY

A new coating composition comprising, by dry weight based on the total dry weight of the coating composition, i) from 12% to 80% of polymer particles comprising, as polymerized units, by dry weight based on the total dry weight of the polymer particles, from 3% to 70% of a vinyl acetate; from 2% to 65% of a styrene; and from 20% to 55% of (meth)acrylate monomers; ii) from 0.1% to 6% of a wax; and iii) from 14% to 55% of a pigment. A process for making the coating composition.

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27-11-2016 дата публикации

LOW- VOC, LOW COST COALESCENT FOR CERTAIN AQUEOUS POLYMERIC DISPERSIONS

Номер: CA0002929409A1
Принадлежит:

A coalescent consisting essentially of a residue from a process for forming propyleneglycol phenyl ether, the coalescent consisting essentially of 65%-75% by weight, based on the weight of the residue, dipropyleneglycol phenyl ether, 8%-10% by weight, based on the weight of the coalescent, monopropyleneglycol phenyl ether, 4%-6% by weight, based on the weight of the coalescent, tripropyleneglycol phenyl ether, and 0.1%-10% by weight, based on the weight of the coalescent, alkalinity(reported as NaOH) is provided. Also provided is a method for forming certain low-VOC, low cost, coalesced aqueous polymeric dispersions including, as copolymerized units, from 70% to 100% by weight, based on the solids weight of the aqueous polymeric dispersion, vinyl acetate monomer and an aqueous coating composition including the coalesced aqueous polymeric dispersion.

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28-01-2020 дата публикации

FORMULATIONS OF RANDOM POLYMERS FOR IMPROVING CRUDE PETROLEUM FLOW

Номер: CA0002714797C

The present invention is related to the use of formulations of new random copolymers and terpolymers, synthesized by a method of semi continuous emulsion polymerization, and that function as flow improvers, lowering the pour point and reducing the viscosity of Mexicans crude oils, which have gravities within the range of 9 to 30° API.

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29-08-2017 дата публикации

COATINGS FOR USE IN HIGH HUMIDITY CONDITIONS

Номер: CA0002894560C
Принадлежит: BENJAMIN MOORE & CO., MOORE BENJAMIN & CO

The present invention is directed to a coating composition comprising a vinyl acrylic copolymer latex wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24hr. The invention is also directed to the copolymer latex itself. Further, the invention is a method of improving a coating's ability to withstand a high humidity environment comprising adding a vinyl acrylic copolymer latex to the coating composition wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, and wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24hr.

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27-12-1996 дата публикации

FUSIBLE, CHLORINE-FREE VINYL ACETATE COPOLYMER FIBRE

Номер: CA0002216164A1
Принадлежит:

Fusible vinyl acetate copolymer fibres based on vinyl acetate copolymers contain (a) at least 40.0 % by weight vinyl acetate units; (b) 15.0 to 50.0 % by weight monomer units that consist of one or several chlori ne-free, ethylenically unsaturated monomers whose homopolymers have a glass transition temperature Tg from 40 to 120 .degree.C; (c ) 0.1 to 15.0 % by weight monomer units that consist of one or several ethylenically unsaturated monomers whose homopolymers have a glass tr ansition temperature Tg from -100 to 0 .degree.C.

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30-06-1969 дата публикации

Procédé de préparation de copolymères

Номер: CH0000474545A
Принадлежит: OREAL, L'OREAL

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15-04-1973 дата публикации

Cosmetic comps contg new copolymers for

Номер: CH0000535798A
Принадлежит: OREAL, L'OREAL

Cosmetic comp. in the form of a lacquer or lotion contains a resin composed of a copolymer of vinyl acetate and crotonic acid in wt ratio of 90:10 (+2.5) the relative amt. of each of the monomers not varying by more than 2.5 wt.% with respect to total concn. Aerosol lacquers suitably contain 25-33 pbw of an anhydrous aliphatic alcohol. 66-75% "Freon" and 1-4% (on the other two) of the copolymer. Lotions may contain a hydroalcoholic soln. (20-50% alcohol) of 1-3% wt. of the copolymer.

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19-01-2012 дата публикации

Photosensitive resin composition

Номер: US20120015300A1
Принадлежит: Individual

Disclosed is a photosensitive resin composition which has excellent transparency, heat resistance, thermal discoloration resistance, adhesion to a substrate and electrical characteristics, while exhibiting good developability and storage stability. Specifically disclosed is a photosensitive resin composition which contains the following components (A), (B) and (C). (A) a copolymer which contains (al) hydroxyphenyl (meth)acrylate and (a2) an unsaturated epoxy compound as copolymerization components (B) a novolac resin which contains one or more phenols selected from among dimethylphenol, trimethylphenol, methylpropylphenol, dipropylphenol, butylphenol, methylbutylphenol, dibutylphenol, and 4,4′-dihydroxy-2,2′-diphenylpropane (C) a quinonediazide group-containing compound

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26-01-2012 дата публикации

Vinyl ester/ethylene-based binders for paper and paperboard coatings

Номер: US20120021237A1
Принадлежит: Celanese International Corp

Disclosed are surfactant-stabilized latex emulsions which can be used as binders in paper coating compositions. Such latex emulsions comprise an interpolymer formed by emulsion polymerizing monomers selected from vinyl esters, e.g., vineyl acetate; ethylene; certain unsaturated mono- and di-carboxylic acid materials such as acrylic acid or maleic anhydride; and certain polyethylenically unsaturated cross-linking co-monomers such as diallyl phthalate. These latex emulsions are stabilized with surfactants which are substantially free of environmentally suspect alkyl phenol ethoxylates (APEs). The paper coating compositions containing latex emulsion binders of this type exhibit especially desirable coating strength as quantified by the Dry Pick Values (as defined herein) which such compositions provide.

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07-06-2012 дата публикации

Polyurethane-modified acrylic resin and preparing method thereof

Номер: US20120142871A1
Принадлежит: Individual

A polyurethane-modified acrylic resin and a preparing method thereof are disclosed. The polyurethane-modified acrylic resin is prepared through the following steps: preparing a monomer with double bond and urethane group by means of a reaction of isocyanate, hydroxylalkyl acrylate and aliphatic alcohol, and then copolymerizing the monomer with acrylate monomer. The polyurethane-modified acrylic resin of the present invention contains a urethane structure, has the features of both polyurethane and acrylic resin, and is soluble in alcohol or ester solvent. An ink, a laminating adhesive, a metal surface-protective coating and a gloss varnish for woodware produced from the resin as well as the preparing methods thereof are also disclosed.

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12-07-2012 дата публикации

Composition to improve cold flow properties of fuel oils

Номер: US20120174474A1
Принадлежит: Evonik RohMax Additives GmbH

The present invention describes a composition comprising at least one polyalkyl(meth)acrylate polymer having a number average molecular weight Mn of from 1000 to 10000 g/mol and a polydispersity Mw/Mn of from 1 to 8 and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver in fossil fuel oil and or biodiesel fuel oil.

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12-07-2012 дата публикации

Use of a copolymer in the form of a solubiliser for a poorly water-soluble compound

Номер: US20120178728A1
Принадлежит: BASF SE

The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.

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16-01-2014 дата публикации

SOLVENT-BASED PAINT COMPOSITION AND FLUORINE-CONTAINING COPOLYMER

Номер: US20140018492A1
Принадлежит: DAIKIN INDUSTRIES, LTD.

Provided is a paint composition which can give a coating having excellent stretchability and further having excellent contamination resistance. A solvent-based paint composition comprises a fluorocopolymer (I), and an organic solvent (II), the fluorocopolymer (I) including: a perhaloolefin structural unit (a) that contains two carbon atoms, a vinyl acetate structural unit (b), a hydroxyl group-containing vinyl monomer structural unit (c) represented by the following formula (1): CH═CH—O—(CH)—OH wherein n is an integer of 2 or more, and a carboxyl group-containing monomer structural unit (d) represented by the following formula (2): RRC═CR—(CH)—COOH wherein R, R, and Rare the same as or different from one another, and each a hydrogen atom or a C1-C10 linear or branched alkyl group; and m is an integer of 2 or more. 1. A solvent-based paint composition , comprising:a fluorocopolymer (I), andan organic solvent (II),the fluorocopolymer (I) including:a perhaloolefin structural unit (a) that contains two carbon atoms,a vinyl acetate structural unit (b), {'br': None, 'sub': 2', '2', 'n, 'CH═CH—O—(CH)—OH'}, 'a hydroxyl group-containing vinyl monomer structural unit (c) represented by the following formula (1)wherein n is an integer of 2 or more, and {'br': None, 'sup': 1', '2', '3, 'sub': 2', 'm, 'RRC═CR—(CH)—COOH'}, 'a carboxyl group-containing monomer structural unit (d) represented by the following formula (2){'sup': 1', '2', '3, 'wherein R, R, and Rare the same as or different from one another, and each a hydrogen atom or a C1-C10 linear or branched alkyl group; and m is an integer of 2 or more.'}2. The solvent-based paint composition according to claim 1 ,wherein, in the formula (1), n is 2 or 4.3. The solvent-based paint composition according to claim 1 ,wherein, in the formula (2), m is 2 to 20.4. The solvent-based paint composition according to claims 1 ,wherein the fluorocopolymer includes 40 mol % or more and 50 mol % or less of the structural unit (a), 20 mol % ...

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04-01-2018 дата публикации

PROCESS FOR THE PREPARATION OF ACYLPHOSPHANES

Номер: US20180002357A1
Принадлежит: ETH ZUERICH

The present invention provides a process for the preparation of mono- and bisacylphosphanes based on formula (I): 2. The process as recited in claim 1 , wherein{'sup': 8', '8', '8', '6', '7', '8', '4, 'claim-text': either not, once, twice or more than twice interrupted by non-successive functional groups selected from the group consisting of:', {'sub': 2', '2', '2', '2', '2', '2', '2, 'sup': 4', '4', '4', '4', '4', '4', '4', '4', '4', '5', '5', '5', '5, '—O—, —S—, —SO—, —SO—, —SONR—, NRSO—, —NR—, —CO—, —O(CO)—, (CO)O—, —O(CO)O—, —NR(CO)NR—, NR(CO)—, —(CO)NR—, —NR(CO)O—, —O(CO)NR—, —Si(R)—, —OSi(R)—, —OSi(R)O—, —Si(R)O—,'}, 'and,', 'either not, additionally or alternatively either once, twice or more than twice interrupted by bivalent residues selected from the group consisting of heterocyclo-diyl, and aryldiyl,', 'and,', 'either not, additionally or alternatively either once, twice or more than twice substituted by substituents selected from the group consisting of:', {'sub': 6', '14', '1', '8', '1', '8', '3', '3', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'y', '3-y', 'y', '3-y, 'sup': 5', '5', '4', '4', '5', '4', '4', '4', '5', '4', '4', '4', '5', '5', '5, 'oxo, hydroxy, halogen, cyano, azido, C-C-aryl, C-C-alkoxy, C-C-alkylthio, —SOM, —COOM, POM, —PO(N(R)), PO(OR), —SON(R), —N(R), —CON(R), —COR, —OCOR, —NR(CO)R, —(CO)OR, —NR(CO)N(R), —Si(OR)(R), —OSi(OR)(R), with y=1, 2 or 3.'}], 'wherein the alkyl, alkenyl, aryl, alkanediyl and alkenediyl substituents are'}, 'Rindependently of further substituents Rwhich may be present in the substituent of formulae (IIa) to (IId) is alkyl, alkenyl or aryl or two substituents Rirrespective of whether they are both part of a substituent Z or belong to different substituents selected from Z, Rand Rtogether are alkanediyl or alkenediyl or alternatively, where two substituents —(CO)Rare present within the substituent of formulae (IIa), are together —O— or —NR—,'}3. The process as recited in claim 1 , wherein if Mis 1/q ...

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04-01-2018 дата публикации

METHOD FOR POLYMERISING ETHYLENICALLY UNSATURATED MONOMERS

Номер: US20180002467A1
Автор: BABAR Muhammad
Принадлежит: Wacker Chemie AG

The invention relates to a method for polymerising ethylenically unsaturated monomers by free-radical initiated emulsion polymerisation in an aqueous medium in a polymerisation reactor, wherein the inside walls and optionally also the fittings in the reactor are coated by applying a deposit-inhibiting product before the reactor is filled, characterised in that the surfaces that are to be coated with deposit-inhibiting product are treated with an acid solution. 1. A method for polymerizing ethylenically unsaturated monomers , comprising radically initiated emulsion polymerization of the ethylenically unsaturated monomers in aqueous medium in a polymerization reactor , wherein the internal walls , and optionally internals , of said reactor are coated; before the reactor is filled by application of a scale inhibitor which precipitates on the treatment with an acid solution , wherein the surfaces to be coated with the scale inhibitor are treated with an acid solution , wherein first the acid solution is applied to the areas that are to be coated , and subsequently the scale inhibitor , or wherein first the scale inhibitor is applied and subsequently the acid solution.2. The method as claimed in claim 1 , wherein the scale inhibitor is selected from the group consisting of condensation products of formaldehyde with naphthol compounds claim 1 , condensation products of a naphthol compound and a sulfoxylate claim 1 , and condensation products of a naphthol compound and an aldehyde and an aromatic carboxylic acid which is hydroxylated on the aromatic nucleus.3. The method as claimed in claim 1 , wherein before the reactor is filled with the constituents of the polymerization mixture and before and/or after the scale inhibitor is applied claim 1 , the walls of the polymerization reactor and optionally the internals of the polymerization reactor are treated with an aqueous solution of an inorganic or organic acid.4. The method as claimed in claim 1 , wherein the acid in the ...

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12-01-2017 дата публикации

Binder for formation of ceramic or for use in conductive paste, and use of same

Номер: US20170008988A1
Принадлежит: Kuraray Co Ltd

There is provided a binder for ceramic formation or a conductive paste, comprising polyvinyl acetal having a degree of acetalization of from 50 to 85 mol %, a content of vinyl ester monomer unit of from 0.1 to 20 mol %, and having a viscosity-average degree of polymerization of from 200 to 5000, wherein a peak-top molecular weight (A) as measured by a differential refractive index detector and a peak-top molecular weight (B) as measured by an absorptiometer (measurement wavelength: 280 nm) in gel permeation chromatographic measurement of the polyvinyl acetal heated at 230° C. for 3 hours satisfy a formula (1) (A−B)/A<0.60 and the polyvinyl acetal has an absorbance in the peak-top molecular weight (B) of from 0.50×10 −3 to 1.00×10 −2 .

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10-01-2019 дата публикации

REDISPERSIBLE POLYMER POWDER COMPOSITIONS WITH IMPROVED IMPACT RESISTANCE

Номер: US20190010266A1
Принадлежит:

The present invention relates to a vinyl ester latex polymer composition, a process for preparing the composition, a water redispersible polymer powder with improved impact resistance obtained therefrom and to the use of the polymer powder for construction applications. 1. A vinyl ester latex polymer composition , comprising , based on the total amount of monomers ,a) from 50 to 99% by weight of vinyl esters of C2-C12-carboxylic acids and from 1% to 50% of acrylic esters, methacrylic esters, maleic esters, ethylene or any other monomer capable of copolymerizing with the said vinyl esters by radical emulsion polymerization, andb) from 0.5% to 10% by weight, based on total amount of monomers, of di- and/or tri-hydroxy alcohols of MW (molecular weight) lower than 500 g/mol and that this component is present during the polymerization process.2. The latex polymer composition of where the hydroxy component is glycerol.3. The latex polymer composition of where the hydroxy component is a glycol of MW less than 250 g/mol.4. The latex polymer composition of claim 1 , wherein the vinyl esters of C2-C12-carboxylic acids are selected from at least one member of the group consisting of vinyl acetate claim 1 , vinyl propionate claim 1 , vinyl butyrate claim 1 , vinyl laurate and vinyl esters of α-branched monocarboxylic acids claim 1 , particularly vinyl 2-ethylhexanoate claim 1 , 1-methylvinyl acetate and vinyl pivalate.5. The latex polymer composition of claim 4 , wherein the vinyl esters of C2-C12-carboxylic acids are selected from vinyl acetate and/or vinyl esters of α-branched monocarboxylic acids.6. The latex polymer composition of claim 1 , wherein the acrylic or methacrylic esters are selected from methyl acrylate claim 1 , methyl methacrylate claim 1 , ethyl acrylate claim 1 , ethyl methacrylate claim 1 , propyl acrylate claim 1 , propyl methacrylate claim 1 , n-butyl acrylate claim 1 , tert.-butyl acrylate claim 1 , n-butyl methacrylate claim 1 , tert.-butyl methacrylate ...

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10-01-2019 дата публикации

INTERNALLY INCORPORATED PHENOLIC RESINS IN WATER-BASED (METH)ACRYLATE ADHESIVE COMPOSITIONS, PRE-ADHESIVE REACTION MIXTURES, METHODS, AND ARTICLES

Номер: US20190010369A1
Принадлежит:

Cationic or zwitterionic polymer adhesives, adhesive articles, aqueous polymerizable pre-adhesive reaction mixtures, and methods of preparation that include internal incorporation of a phenolic resin. The aqueous polymerizable pre-adhesive reaction mixtures include one or more cationic (meth)acrylate monomers, one or more low Tg nonionic monomer having a (meth)acryloyl group, optionally one or more anionic (meth)acrylate monomers, and one or more phenolic resins. 1. An aqueous polymerizable pre-adhesive reaction mixture comprising:water;one or more cationic (meth)acrylate monomers; anda dispersed phase comprising one or more low Tg nonionic monomers and one or more phenolic resins, wherein the low Tg nonionic monomers have a (meth)acryloyl group and have a Tg of no greater than 20° C. when homopolymerized, the Tg being measured using Dynamic Mechanical Analysis.2. The aqueous pre-adhesive reaction mixture of wherein the one or more phenolic resins comprise a terpene phenolic resin claim 1 , an alkyl phenolic resin claim 1 , or combinations thereof.3. The aqueous pre-adhesive reaction mixture of wherein the one or more phenolic resins comprise a terpene phenolic resin.4. The aqueous pre-adhesive reaction mixture of wherein the terpene phenolic resin has a hydroxyl value of 20 to 220 mg KOH per gram resin.5. The aqueous pre-adhesive reaction mixture of wherein the one or more phenolic resins comprise an alkyl phenolic resin.6. The aqueous pre-adhesive reaction mixture of wherein the alkyl phenolic resin comprises a para-alkylphenol-formaldehyde novolac resin.7. The aqueous pre-adhesive reaction mixture of wherein the phenolic resin is present in the pre-adhesive reaction mixture in an amount of 2 to 30 parts per one hundred parts of total monomers.8. The aqueous pre-adhesive reaction mixture of wherein the one or more cationic (meth)acrylate monomers comprise a (meth)acrylate ester having an alkyl ammonium functionality claim 1 , or a mixture of two or more thereof.9. ...

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09-01-2020 дата публикации

SYSTEM FOR CONTROLLING ETHYLENE VINYL ACETATE COPOLYMERIZATION PROCESS AND METHOD OF CONTROLLING THE SAME

Номер: US20200010592A1
Автор: Lee Kyu Hwang, Sim Ye Seul
Принадлежит: LG CHEM, LTD.

Disclosed are a system for controlling an ethylene vinyl acetate (EVA) copolymerization process and a method of controlling the same. The system for controlling the EVA copolymerization process may include a database for analysis configured to store analysis data obtained by matching processing conditions with measured data for first EVAs produced under the processing conditions, a vinyl acetate (VA) content estimation unit configured to estimate a VA content with respect to second EVA using the analysis data, a molecular weight distribution estimation unit configured to estimate a molecular weight distribution of the second EVA using the VA content estimated in the VA content estimation unit and processing factors corresponding thereto, and a recovery system blockage estimation unit configured to estimate a recovery system blockage phenomenon using the VA content estimated in the VA content estimation unit and the molecular weight distribution estimated in the molecular weight distribution estimation unit. 1. A system for controlling an EVA copolymerization process , comprising:a database for analysis configured to store analysis data obtained by matching processing conditions with measured data for first ethylene vinyl acetates (EVAs) produced under the processing conditions;a vinyl acetate (VA) content estimation unit configured to estimate a VA content with respect to second EVA using the analysis data;a molecular weight distribution estimation unit configured to estimate a molecular weight distribution of the second EVA using the VA content estimated in the VA content estimation unit and processing factors corresponding thereto; anda recovery system blockage estimation unit configured to estimate a recovery system blockage phenomenon using the VA content estimated in the VA content estimation unit and the molecular weight distribution estimated in the molecular weight distribution estimation unit.2. The system according to claim 1 , wherein the VA content ...

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21-01-2016 дата публикации

PROCESS FOR PREPARING SURFACTANT RESPONSIVE EMULSION POLYMERS

Номер: US20160017070A1
Принадлежит: LUBRIZOL ADVANCED MATERIALS, INC.,

A process for preparing a vinyl acetate rich polymer for formulating surfactant containing compositions comprising at least one anionic surfactant and having yield stress properties without a significant increase in viscosity, low turbidity, and the ability to suspend insoluble materials in the form of particulates and/or droplets that require suspension or stabilization is disclosed.

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21-01-2021 дата публикации

Multilayer article with heat-sealable barrier layer

Номер: US20210017312A1
Автор: Masakazu Nakaya
Принадлежит: Kuraray Co Ltd

A multilayer article is provided which is suitable for use in food packaging and pharmaceutical packaging industry, wherein the multilayer article having at least one layer of a heat sealable barrier polymer composition (barrier sealant layer), wherein the heat sealable barrier polymer composition comprises a modified ethylene-vinyl alcohol copolymer and the layer of the heat sealable barrier polymer composition is the innermost layer of the multilayer article.

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10-02-2022 дата публикации

METHOD FOR PRODUCING AQUEOUS POLYMER DISPERSIONS IN A TUBE REACTOR

Номер: US20220041774A1
Принадлежит: Wacker Chemie AG

Aqueous polymer dispersions are produced by radically initiated emulsion polymerization of ethylenically unsaturated monomers in the presence of protective colloids and/or emulsifiers in a continuously operated tubular reactor, characterized in that the direction of flow of the reactor contents is reversed along the longitudinal axis of the reactor over the course of polymerization. 110.-. (canceled)11. A process for producing an aqueous polymer dispersion , comprising:polymerizing ethylenically by radically initiated emulsion polymerization in the presence of protective colloids and/or emulsifiers in a continuously operated tubular reactor, wherein a direction of flow of the reactor contents is reversed along the longitudinal axis of the reactor at regular time intervals.12. The process of claim 11 , wherein the direction of flow of the reactor contents is reversed within a time interval of 60 minutes to 48 hours.13. The process of claim 11 , wherein the direction of flow of the reactor contents is reversed within a time interval of 6 hours to 12 hours.14. The process of claim 11 , wherein stirred tubular reactors claim 11 , unstirred tubular reactors claim 11 , tubular reactors with mixing internals or Taylor reactors with a cylindrical stirrer are used as the tubular reactor.15. The process of claim 14 , wherein the mixing internals comprise a static mixer.16. The process of claim 11 , wherein the constituents of the reaction mixture are mixed beforehand in a mixing unit to give a pre-emulsion and are fed continuously to the tubular reactor.17. The process of claim 11 , wherein no oxidation catalyst is added to the pre-emulsion in the case of thermal initiation claim 11 , and an oxidation initiator is added to the tubular reactor.18. The process of claim 11 , wherein in the case of initiation with a redox initiator combination claim 11 , the reduction initiator is added to the pre-emulsion and the oxidation initiator is added to the tubular reactor.19. The ...

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10-02-2022 дата публикации

AQUEOUS COPOLYMER DISPERSIONS AND THEIR USE IN COATING COMPOSITIONS

Номер: US20220041776A1
Принадлежит:

An aqueous copolymer dispersion is obtained by a multi-stage emulsion polymerization process comprising polymerizing in a reaction zone in a first polymerization stage a first monomer composition comprising at least 88 wt % of a vinyl ester of a Cto Ccarboxylic acid and up to 12 wt % ethylene to produce a first stage polymer having Tg>20° C.; and polymerizing in the reaction zone, in a second polymerization stage and in the presence of the first stage polymer, a second monomer composition comprising a vinyl ester of a Cto Ccarboxylic acid and a Cto Calkyl ester of (meth)acrylic acid to produce a second stage polymer having Tg≤20° C. Each of the polymerization stages is conducted in the presence of a stabilizing system comprising at least 0.1 wt % of a protective colloid and at least 0.05 wt % of an ionic surfactant. 1. An aqueous copolymer dispersion obtained by a free radical-initiated multi-stage emulsion polymerization process comprising:{'sub': 1', '18, '(a) polymerizing in a reaction zone in a first polymerization stage a first monomer composition comprising at least 88 weight percent of at least one vinyl ester of a Cto Ccarboxylic acid and up to 12 weight percent ethylene to produce a first stage polymer having a glass transition temperature Tg of greater than 20° C.; and'}{'sub': 1', '18', '2', '8, '(b) polymerizing in the reaction zone, in a second polymerization stage and in the presence of the first stage polymer, a second, different monomer composition comprising at least one vinyl ester of a Cto Ccarboxylic acid and at least one Cto Calkyl ester of acrylic or methacrylic acid in an amount up to 30 weight percent of the total monomers in the second monomer composition to produce a second stage polymer having a glass transition temperature Tg of less than or equal to 20° C.,'}{'sub': 2', '8, 'wherein the first monomer composition is substantially free of Cto Calkyl esters of acrylic or methacrylic acid;'}wherein the second monomer composition is metered ...

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02-02-2017 дата публикации

PROCESS FOR THE EMULSION POLYMERIZATION OF FREE-RADICALLY POLYMERIZABLE, ETHYLENICALLY UNSATURATED MONOMERS

Номер: US20170029544A1
Принадлежит:

The present invention relates to a process for the emulsion polymerization of free-radically polymerizable, ethylenically unsaturated main monomers, and optionally further auxiliary monomers copolymerizable therewith, wherein the polymerization comprises a polymerization reaction phase starting with the first addition of an initiator or starting with the first addition of monomers, whatever is later, and ending with the completion of the addition of the initiator or the completion of the addition of total monomers, whatever is later, wherein the reaction temperature is increased during said polymerization reaction phase from a start temperature in the range of about 30° C. to about 85° C. to an end temperature in the range of about 60° C. to about 160° C., and wherein the polymerization temperature is increased for at least 25% of the duration of said polymerization reaction phase. The present invention further relates to an aqueous (co) polymer dispersion comprising at least one (co)polymer obtained by said process, and the use of this aqueous (co)polymer dispersion. 1. A process for the emulsion polymerization of free-radically polymerizable , ethylenically unsaturated main monomers , and optionally further auxiliary monomers copolymerizable therewith ,wherein the polymerization comprises a polymerization reaction phase starting with the first addition of an initiator or starting with the first addition of monomers, whatever is later, and ending with the completion of the addition of the initiator or the completion of the addition of total monomers, whatever is later,wherein the reaction temperature is increased during said polymerization reaction phase from a start temperature in the range of about 30° C. to about 85° C. to an end temperature in the range of about 60° C. to about 160° C., andwherein the polymerization temperature is increased for at least 25% of the duration of said polymerization reaction phase.2. The process according to claim 1 , wherein the ...

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02-02-2017 дата публикации

Method for preparing an aqueous polymer dispersion

Номер: US20170029545A1
Принадлежит: BASF SE

Aqueous polymer dispersions and their use for producing shaped articles having improved heat resistance are described.

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02-02-2017 дата публикации

AQUEOUS POLYMER DISPERSION FOR PAPER WITH A COPOLYMER OF VINYL ACETATE AND AN ACRYLATE MONOMER PREPARED IN THE PRESENCE OF A STARCH DERIVATIVE

Номер: US20170029650A1
Принадлежит: BASF SE

The invention relates to a process for preparing an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C-Calkyl acrylate or a C-Cmethacrylate, an α,β-ethlyenically unsaturated C3-C8 carboxylic acid and at least one out of glycidyl methacrylate, glycidyl acrylate, allyl methacrylate and allyl acrylate, in the presence of a starch derivative. Optionally, an additional monomer is an ethylenically unsaturated sulfonic acid, an ethylenically unsaturated other monomer or both of them. Furthermore, the aqueous polymer dispersion obtainable from this process and a powder form thereof are disclosed. They are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder. 1. A process for preparing an aqueous dispersion comprising a polymer P , the process comprising:emulsifying a mixture comprising monomers in an aqueous medium, andpolymerizing the monomers in the presence of a free-radical initiator and a starch derivative, vinyl acetate, as a monomer (a),', {'sub': 1', '10', '1', '10, 'at least one acrylate monomer, which is at least one selected from the group consisting of a C-Calkyl acrylate and a C-Calkyl methacrylate, as a monomer (b),'}, {'sub': 3', '6, 'at least one α,β-ethylenically unsaturated C-Ccarboxylic acid, as a monomer (c).'}, 'at least one monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, methacrylate and allyl acrylate, as a monomer (d),', 'optionally at least one ethylenically unsaturated sulfonic acid, as a monomer (e), and', 'optionally at least one ethylenically unsaturated other monomer, which is different from the monomers (a), (b), (c), ...

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02-02-2017 дата публикации

Aqueous polymer dispersion for paper with a copolymer of vinyl acetate and an acrylate monomer

Номер: US20170029651A1
Принадлежит: BASF SE

The invention relates to a process for preparing an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C 1 -C 10 alkyl acrylate or a C 1 -C 10 methacrylate, an α,β-ethylenically unsaturated C 3 -C 8 carboxylic acid, glycidyl methacrylate or glycidyl acrylate, optionally an ethylenically unsaturated sulfonic acid and optionally an ethylenically unsaturated other monomer. Furthermore, the aqueous polymer dispersion obtainable from this process and a powder form thereof are disclosed. They are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder.

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17-02-2022 дата публикации

OPTICALLY BRIGHTENED LATEXES

Номер: US20220049025A1
Принадлежит:

The present invention relates to a method of preparing an aqueous composition by emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of at least one water-soluble diaminostilbene disulphonic optical brightener, as well as to the aqueous composition obtainable by said method, the use of said aqueous composition for optically brightening of a cellulosic substrate and the cellulosic substrate treated with the aqueous composition. 2. Method according to claim 1 , wherein in the at least one water-soluble diaminostilbene disulphonic optical brightener of formula (1){'sup': 1', '6, 'sub': 1', '4', '2', '2', '2, 'Rand Rsignify independently from each other hydrogen, methyl, linear or branched Cto Chydroxyalkyl or CHCHCONH,'}{'sup': 2', '4, 'sub': 1', '4', '1', '4', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other hydrogen, linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl, CHCHCONHor CHCHCN,'}{'sup': 3', '5, 'sub': 1', '4', '1', '4', '2', '2', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl, CH(COM)CHCOM, CH(COM)CHCHCOM, benzyl or'}{'sup': 2', '3, 'Rand Rsignify together with their neighbouring nitrogen atom a morpholino ring and/or'}{'sup': 4', '5, 'Rand Rsignify together with their neighbouring nitrogen atom a morpholino ring, and'}{'sup': 7', '8, 'Rand Rsignify independently from each other hydrogen or methyl.'}3. Method according to claim 1 , wherein in the at least one water-soluble diaminostilbene disulphonic optical brightener of formula (1){'sup': 1', '6, 'Rand Rsignify hydrogen,'}{'sup': 2', '4, 'sub': 1', '2', '1', '3, 'Rand Rsignify independently from each other hydrogen, linear or branched Cto Calkyl, linear or branched Cto Chydroxyalkyl,'}{'sup': 3', '5, 'sub': 1', '2', '1', '3', '2', '2', '2', '2', '2', '2', '2, 'Rand Rsignify independently from each other linear or branched Cto Calkyl, linear or ...

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31-01-2019 дата публикации

THERMOPLASTIC FORMULATION WITH IMPROVED ADHESION

Номер: US20190031853A1
Принадлежит: SIKA TECHNOLOGY AG

A thermally expandable composition, including at least one polymer P, cross-linkable by peroxide, at least one peroxide, preferably at least one acrylate, at least one blowing agent B, preferably at least one activator for the blowing agent, and at least one epoxide group terminated polymer of the formula (I), 2. Thermally expandable composition according to claim 1 , wherein m has a value of 2.3. Thermally expandable composition according to claim 1 , wherein the blowing agent B comprises azodicarbonamide and/or 4 claim 1 ,4′-oxybis(benzenesulphonyl hydrazide).4. Thermally expandable composition according to claim 1 , wherein the acrylate A comprises dipentaerythritol pentaacrylate and/or trimethylolpropane trimethacrylate.5. Thermally expandable composition according to claim 1 , wherein the polyurethane polymer PU is a reaction product of a polyisocyanate and a polyether polyol and optionally a hydroxyl-functional polybutadiene polyol.6. Thermally expandable composition according to claim 1 , wherein the peroxide comprises di-(2-tert.-butyl-peroxyisopropyl)-benzene.7. Thermally expandable composition according to claim 1 , wherein the polymer P comprises ethylene vinyl acetate and/or ethylene butyl acrylate.81212. Thermally expandable composition according to claim 1 , wherein the polymer P comprises or essentially consists of at least two polymers P and P claim 1 , wherein P exhibits a melt flow index (MFI) of between 100 and 200 g/10 min claim 1 , and P exhibits a melt flow index of between 0.1 and 60 g/10 min claim 1 , wherein MFI is determined by ASTM D1238.10. Baffle and/or reinforcement element for hollow structures claim 1 , wherein the element comprises or essentially consists of a thermally expandable composition according to .11. Baffle and/or reinforcement element of claim 10 , wherein that the element comprises a carrier on which the thermally expandable composition is deposited or attached claim 10 , wherein the carrier is made of a thermoplastic ...

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04-02-2021 дата публикации

Intermediate film for laminated glass, rolled body, and laminated glass

Номер: US20210031495A1
Принадлежит: Sekisui Chemical Co Ltd

Provided is an interlayer film for laminated glass capable of enhancing the interlayer adhesive force, and enhancing the sound insulating property after a lapse of a certain period of time from production of the interlayer film. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or a two or more-layer structure, a compound obtained by trimethylsilylating the polyvinyl acetate in the presence of N,O-bis(trimethylsilyl)trifluoroacetamide shows a hydrogen peak of trimethylsilyl group existing at 0.06 ppm or more and 0.3 ppm or less in 1 H-NMR measurement in chloroform-d, and a ratio of peak intensity of all peaks existing at 0.06 ppm or more and 0.3 ppm or less, to intensity of all peaks existing at 4.5 ppm or more and 5.3 ppm or less satisfies 0.02 or more and 3 or less.

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09-02-2017 дата публикации

METHOD FOR PRODUCING ETHYLENE-VINYL ESTER COPOLYMER, AND SAPONIFIED ETHYLENE-VINYL ESTER COPOLYMER PRODUCT

Номер: US20170037168A1

The present invention provides a saponified ethylene-vinyl ester copolymer product from which a film having reduced fish eyes can be obtained and a method for producing an ethylene-vinyl ester copolymer that is a precursor thereof. At the time of producing the ethylene-vinyl ester copolymer, as a vinyl ester monomer, the oxygen concentration at storage and/or transportation is adjusted to from 2 to 8 ppm and the oxygen concentration at polymerization is adjusted to less than 2 ppm. 1. A method for producing an ethylene-vinyl ester copolymer by copolymerizing a vinyl ester monomer and ethylene , wherein the vinyl ester monomer is stored and/or transported in a state of an oxygen concentration of 2 to 8 ppm and subsequently is used for the polymerization with adjusting the oxygen concentration to less than 2 ppm.2. The method for producing an ethylene-vinyl ester copolymer according to claim 1 , wherein the vinyl ester monomer after storage and/or transportation is copolymerized at an oxygen concentration of 1 ppm or less.3. A saponified ethylene-vinyl ester copolymer product claim 1 , which is obtained by saponifying the ethylenevinyl ester copolymer obtained by the production method according to .4. The method for producing an ethylene-vinyl ester copolymer according to claim 1 , wherein the vinyl ester monomer is an aliphatic vinyl ester.5. The method for producing an ethylene-vinyl ester copolymer according to claim 1 , wherein a temperature of the vinyl ester monomer during storage and/or transportation is 38° C. or lower.6. The method for producing an ethylene-vinyl ester copolymer according to claim 1 , wherein a pressure of the vinyl ester monomer during storage and/or transportation is 1 to 10 kPa.7. The saponified ethylene-vinyl ester copolymer product according to claim 3 , wherein the ethylene content is 20 to 60 mol %.8. The saponified ethylene-vinyl ester copolymer product according to claim 3 , wherein the saponification degree is 90 mol % or more.9. ...

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07-02-2019 дата публикации

VINYL CHLORIDE-VINYL ACETATE COPOLYMER PARTICLES AND AUTOMOBILE UNDERBODY COATING AGENT

Номер: US20190040170A1
Автор: Watanabe Kazunori
Принадлежит: TOSOH CORPORATION

To provide vinyl chloride-vinyl acetate copolymer particles, which have a small change with time in sol viscosity when kneaded together with a plasticizer and are excellent in the mechanical strength during low temperature processing, and applications represented by a coating agent, particularly an automobile underbody coating or an automotive sealant. 1. Vinyl chloride-vinyl acetate copolymer particles comprising:vinyl chloride-vinyl acetate copolymers in which a vinyl acetate residue unit content is continuously distributed in a range of 0 to 30% by weight and the distribution has one local maximum, and which have an average degree of polymerization of 1,500 to 3,000 and an average vinyl acetate residue unit content of 5 to 15% by weight, wherein an average diameter of a primary particle of the vinyl chloride-vinyl acetate copolymers is from 1 to 2 μm.2. The vinyl chloride-vinyl acetate copolymer particles as claimed in comprising:a composition containing from 0.5 to 2 parts by weight of an alkyl sulfate ester salt with respect to 100 parts by weight of vinyl chloride-vinyl acetate copolymers in which a vinyl acetate residue unit content is continuously distributed in a range of 0 to 30% by weight and the distribution has one local maximum, and which have an average degree of polymerization of 1,500 to 3,000 and an average vinyl acetate residue unit content of 5 to 15% by weight,wherein an average diameter of a primary particle of the vinyl chloride-vinyl acetate copolymers is from 1 to 2 μm.3. The vinyl chloride-vinyl acetate copolymer particles as claimed in claim 2 ,wherein the alkyl sulfate ester salt is one selected from the group consisting of lithium lauryl sulfate, sodium lauryl sulfate, ammonium lauryl sulfate and triethanol ammonium lauryl sulfate.4. The vinyl chloride-vinyl acetate copolymer particles as claimed in claim 1 ,wherein the vinyl acetate residue unit content is continuously distributed in a range of 0 to 25% by weight and the distribution ...

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18-02-2021 дата публикации

Binder for Secondary Battery and Secondary Battery Including the Same

Номер: US20210050595A1
Принадлежит: SK Innovation Co Ltd

A binder for a secondary battery includes a copolymer having a first repeating unit, a second repeating unit, and a third repeating unit. A ratio of a number of the first repeating unit (A) and a sum of a number of the second repeating unit and a number of the third repeating unit (B) is 90:10 to 52:48. A ratio of the number of the second repeating unit and the number of the third repeating unit is 67:33 to 1:99. A weight average molecular weight of the copolymer is 225,000 to 2,000,000.

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15-05-2014 дата публикации

Photovoltaic module with stabilized polymeric encapsulant

Номер: US20140130865A1
Автор: Daisuke Fujiki
Принадлежит: BASF SE

The present invention relates to a photovoltaic module comprising a photovoltaic semiconductor (1) and one or more layers (2), which contain a synthetic polymer (A) and a hindered amine light stabilizer (B). The hindered amine light stabilizer (B) is for example a compound of the formula I wherein m is=1, Y is O, A is C 1 -C 19 alkylcarbonyl and Z 1 is C 1 -C 18 alkyl, C 5 -C 7 cycloalkyl or C 2 -C 12 alkyl substituted with hydroxyl.

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10-03-2022 дата публикации

WATER SOLUBLE FIBERS WITH POST PROCESS MODIFICATIONS AND ARTICLES CONTAINING SAME

Номер: US20220074130A1
Принадлежит: MONOSOL, LLC

Methods of treating fibers comprising a polymer including at least one of a vinyl acetate moiety or a vinyl alcohol moiety, and resulting fibers or the products comprising the resulting fibers are disclosed. In an example embodiment, a fiber having a surface region and an interior region, includes a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety chemically modified with a modification agent. The fiber has a transverse cross-section including the interior region comprising the polymer having a first degree of modification and the surface region comprising the polymer having a second degree of modification greater than the first degree of modification. 1. A fiber having a surface region and an interior region , the fiber comprising:a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety chemically modified with a modification agent,the fiber having a transverse cross-section including the interior region comprising the polymer having a first degree of modification and the surface region comprising the polymer having a second degree of modification greater than the first degree of modification.2. The fiber according to claim 1 , wherein the transverse cross-section of the fiber has an increasing gradient in a degree of modification of the polymer from the interior region to the surface region.3. The fiber according to claim 1 , wherein the polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety without modification comprises a polyvinyl alcohol homopolymer claim 1 , a polyvinyl acetate homopolymer claim 1 , a polyvinyl alcohol copolymer claim 1 , or any combination thereof.4. The fiber according to claim 3 , wherein the polyvinyl alcohol copolymer is a copolymer of vinyl acetate and vinyl alcohol.5. The fiber according to claim 4 , wherein the polyvinyl alcohol copolymer comprises an anionic modification.6. The fiber according to claim 5 , wherein the anionic modification ...

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02-03-2017 дата публикации

POLYMERS AS SUPPORT MATERIAL FOR USE IN FUSED FILAMENT FABRICATION

Номер: US20170057176A1
Принадлежит: BASF SE

The present invention relates to the use of a polymer comprising polymerized units (A) and (B): (A) at least one first monomer of the formula (I) where n is 3 to 12; m is 0 to 3; Ris C-C-alkyl, C-C-alkenyl, aryl or aralkyl; R, Rand Rare each, independently of one another, hydrogen, C-C-alkyl, C-C-alkenyl, aryl or aralkyl; and (B) at least one second monomer of the formula (II) where R, Rand Rare each, independently of one another, hydrogen, C-C-alkyl, C-C-alkenyl, aryl or aralkyl; Ris C-C-alkyl, C-Calkenyl, aryl or aralkyl; as a support material in a fused filament fabrication process. 114-. (canceled)16. The process according to claim 15 , wherein the polymer comprises at least 20% by weight of polymerized Unit (A) claim 15 , based on the total weight of the polymer.17. The process according to claim 15 , wherein the polymer comprises20 to 80% by weight of polymerized unit (A) and80 to 20% by weight of polymerized unit (B),based on the total weight of the polymer.18. The process according to claim 15 , wherein polymerized unit (A) comprises at least one monomer selected from the group consisting of N-vinylpyrrolidone claim 15 , N-vinylpiperidone claim 15 , and N-vinylcaprolactame.19. The process according to claim 15 , wherein polymerized unit (A) comprisesat least 80% by weight of N-viaylpyrrolidone, and0 to 20% by weight of at least one monomer of (I) which is different from N-vinylpyrrolidone,based on the total weight of component (A).20. The process according to claim 15 , wherein polymerized unit (A) comprisesat least 80% by weight of N-vinylpyrrolidone, and0 to 20% by weight of N-vinylcaprolactam,based on the total weight of component (A).21. The process according to claim 15 , wherein polymerized unit (B) comprisesat least 80% by weight of vinyl acetate, and0 to 20% by weight of at least one monomer of formula (H) which is different from N-vinyl acetate,based on the total weight of component (B).22. The process according to claim 15 , wherein polymerized ...

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17-03-2022 дата публикации

COMPOSITION INCLUDING POLYESTER RESIN AND VINYL ESTER AND METHOD OF USING THE SAME

Номер: US20220081555A1
Принадлежит:

The composition includes at least one of a dicyclopentadiene-modified unsaturated polyester resin or an ethylene glycol fumarate unsaturated polyester resin; a vinyl ester represented by formula R—[C(O)—O—CH═CH]wherein R is alkyl, aryl, or a combination thereof, and n is 1 or 2; a tertiary amine; and inorganic filler. A method of repairing a damaged surface using the composition C is also described. 1. A composition comprising:at least one of a dicyclopentadiene-modified unsaturated polyester resin or an ethylene glycol fumarate unsaturated polyester resin;{'sub': ['2', 'n'], '#text': 'a vinyl ester represented by formula R—[C(O)—O—CH═CH]wherein R is alkyl, aryl, or a combination thereof, and n is 1 or 2;'}a tertiary amine; andinorganic filler.2. The composition of claim 1 , wherein the composition is substantially free of a vinyl aromatic compound comprising at least one vinyl substituent on an aromatic ring.3. The composition of claim 1 , wherein the vinyl ester is represented by formula R—C(O)—O—CH═CH claim 1 , wherein R is alkyl.4. The composition of claim 3 , wherein R has more than one carbon atom.5. The composition of claim 1 , further comprising a reactive diluent comprising at least one of acrylate groups claim 1 , methacrylate groups claim 1 , allyl ether groups claim 1 , or vinyl ether groups.6. The composition of claim 1 , further comprising one or more reactive compounds having at least one of a mercaptan or epoxy group.7. The composition of claim 1 , wherein the inorganic filler comprises at least one of ceramic beads claim 1 , polymer beads claim 1 , silica claim 1 , hollow ceramic elements claim 1 , hollow polymeric elements claim 1 , alumina claim 1 , zirconia claim 1 , mica claim 1 , dolomite claim 1 , wollastonite claim 1 , fibers claim 1 , talc claim 1 , calcium carbonate claim 1 , or clay.8. The composition of claim 1 , wherein the inorganic filler is non-fibrous.9. The composition of claim 1 , wherein the tertiary amine comprises at least one N ...

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29-05-2014 дата публикации

Polymers

Номер: US20140144070A1
Принадлежит: Infineum International Ltd

The present invention is a polymer having structural units, units of formula I, units of formula II and units of either formula IIIa or formula IIIb: The polymer improves the low-temperature properties of fuel oils from petroleum sources and especially from vegetable or animal sources.

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11-03-2021 дата публикации

PRESSURE SENSITIVE ADHESIVE COMPOSITIONS AND METHODS OF MAKING SAME

Номер: US20210071042A1
Принадлежит:

Pressure sensitive adhesive compositions are disclosed comprising acrylic emulsions that are emulsion polymerization products of (a) a monomer mixture comprising, based on the total weight of monomers in the monomer mixture, from 50 to 99 weight percent 2-ethylhexyl acrylate and from 1 to 50 weight percent an unsaturated monomer, (b) a surfactant, and (c) an initiator. Methods for preparing pressure sensitive adhesive compositions are also disclosed. Food contact articles comprising the disclosed pressure sensitive adhesive compositions are also disclosed. In some embodiments, the disclosed food contact articles have an overall migration of less than 25 mg/dm, as measured in accordance with EN 1186, or less than 10 mg/dm, as measured in accordance with EN 1186. 1. A pressure sensitive adhesive composition for use in an adhesive layer of a food contact article , comprising: [ from 50 to 99 weight percent 2-ethylhexyl acrylate; and', 'from 1 to 50 weight percent an unsaturated monomer;, '(a) a monomer mixture comprising, based on the total weight of monomers in the monomer mixture,'}, '(b) a surfactant; and', '(c) an initiator,, 'an acrylic emulsion formed from{'sup': '2', 'wherein the pressure sensitive adhesive composition has an overall migration of less than 10 mg/dm, as measured in accordance with EN 1186.'}2. The pressure sensitive adhesive composition of claim 1 , wherein the unsaturated monomer comprises vinyl acetate.3. The pressure sensitive adhesive composition of claim 2 , wherein the vinyl acetate accounts for less than or equal to 7 weight percent of the acrylic copolymer claim 2 , based on the total weight of the monomer subunits.4. The pressure sensitive adhesive composition of claim 1 , further comprising a crosslinker.5. A food contact article including an adhesive layer comprising the pressure sensitive adhesive composition of claim 1 , the food contact article having an overall migration of less than 25 mg/dm claim 1 , as measured in accordance ...

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19-03-2015 дата публикации

CURABLE COMPOSITION COMPRISING CYANOACRYLATE MONOMERS

Номер: US20150075709A1
Принадлежит:

The present invention provides for curable compositions composed of one or more cyanoacrylate monomers, and one or more (co)polymers. The compositions of the present invention may exhibit pressure sensitive adhesion properties at 23° C. Subsequent cure of the compositions can be initiated as appropriate. For example, an external stimulus such as heat or radiation (e.g. UV cure) may be applied to induce cure of the composition when desired to do so. 3. The curable composition of claim 1 , wherein the cyanoacrylate monomer has a melting point at 1013.25 mbar of more than 25° C.4. The curable composition of claim 1 , wherein the cyanoacrylate monomer is (2-phenylethyl) 2-cyanoacrylate.5. The curable composition of claim 1 , wherein the cyanoacrylate monomer is present in an amount of at least 15 wt. % claim 1 , based on the total weight of the curable composition.6. The curable composition of claim 1 , wherein the cyanoacrylate monomer is present in an amount from 20 wt. % to 80 wt. % claim 1 , based on the total weight of the curable composition.7. The curable composition of claim 1 , wherein the (co)polymer is selected from poly(meth)acrylate (co)polymers claim 1 , polyvinyl ethers claim 1 , natural rubbers claim 1 , polyisoprenes claim 1 , polybutadienes claim 1 , polyisobutylenes claim 1 , polychloroprenes; butadiene-acrylonitrile polymers claim 1 , thermoplastic elastomers claim 1 , styrene-isoprene copolymers claim 1 , styrene-isoprene-styrene block copolymers claim 1 , ethylene-propylene-diene polymers claim 1 , styrene-butadiene polymers claim 1 , poly-alpha-olefins claim 1 , silicones claim 1 , ethylene vinyl acetate copolymers and/or combinations thereof.8. The curable composition of claim 1 , wherein the (co)polymer has a glass transition temperature (T) claim 1 , as determined by Differential Scanning calorimetry (DSC) claim 1 , of less than 30° C.9. The curable composition of claim 1 , wherein the (co)polymer is a (co)polymer having pressure sensitive ...

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07-03-2019 дата публикации

POLYMERS HAVING N-VINYL AMIDE AND HYDROXYL MOIETIES, THEIR COMPOSITIONS AND THE USES THEREOF

Номер: US20190071529A1
Автор: Lei Cuiyue, Musa Osama M.
Принадлежит: ISP Investments LLC

The invention relates to polymers derived at least from one: (A) one N-vinyl amide unit, and (B) one hydroxyl-containing acrylate unit, and to polymers derived at least from: (A) N-vinyl-2-caprolactam, and (B) one non-acrylate unit having: (i) at least one hydroxyl group, and/or (ii) at least one functional group convertible to a hydroxyl group wherein at least one group is converted to hydroxyl functionality in the final polymer product. Such polymers may exhibit degradability, e.g., in seawater or soil environments. In preferred embodiments, these polymers and compositions thereof are used in oilfield applications, such as an inhibitor of gas hydrates and/or a kinetic inhibitor of gas hydrates. The polymer can assume alternating, block, and/or random configurations of the repeating units, with at least one ester group. The chemical structure subscripts m, and n may be any integer equal to or greater than . 1. A polymer derived at least from: (A) one N-vinyl amide unit , and (B) one hydroxyl-containing acrylate unit selected from the group consisting of: polyethylene glycol acrylate , polyethylene glycol methacrylate , 2-hydroxyethyl acrylate , 3-hydroxypropyl methacrylate , 3-hydroxypropyl acrylate , and blends thereof.2. The polymer of wherein said N-vinyl amide is selected from the group consisting of: N-vinyl-2-pyrrolidone; N-vinyl-2-caprolactam; N-vinyl piperidone; N-vinyl-3-methyl pyrrolidone; N-vinyl-4-methyl pyrrolidone; N-vinyl-5-methyl pyrrolidone; N-vinyl-3-ethyl pyrrolidone; N-vinyl-3-butyl pyrrolidone; N-vinyl-3 claim 1 ,3-dimethyl pyrrolidone; N-vinyl-4 claim 1 ,5-dimethyl pyrrolidone; N-vinyl-5 claim 1 ,5-dimethyl pyrrolidone; N-vinyl-3 claim 1 ,3 claim 1 ,5-trimethyl pyrrolidone; N-vinyl-5-methyl-5-ethyl pyrrolidone; N-vinyl-3 claim 1 ,4 claim 1 ,5-trimethyl-3-ethyl pyrrolidone; N-vinyl-6-methyl-2-piperidone; N-vinyl-6-ethyl-2-piperidone; N-vinyl-3 claim 1 ,5-dimethyl-2-piperidone; N-vinyl-4 claim 1 ,4-dimethyl-2-piperidone; N-vinyl-6-propyl-2- ...

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16-03-2017 дата публикации

POLYMERS

Номер: US20170073600A1
Принадлежит:

The present invention is a polymer having structural units, units of formula I, units of formula II and units of either formula IIIa or formula IIIb: 28-. (canceled)9. The polymer according to claim 1 , wherein Y represents a group of formula IV where Ris hydrogen claim 1 , Ris methyl claim 1 , m is an integer from 1 to 6 and n is an integer from 6 to 18.1011-. (canceled)12. A fuel oil composition comprising a major amount of a fuel oil and a minor amount of the polymer recited in .13. The fuel oil composition according to claim 12 , wherein the fuel oil contains fatty acid alkyl esters made from oils derived from animal or vegetable materials.14. An additive concentrate comprising the polymer recited in and a solvent.15. A polymer according to wherein Rand Rare the same and each represent a linear Cto Calkyl group.16. A polymer according to wherein Rrepresents —OCOR.17. A polymer according to wherein Ris methyl or 2-ethylhexyl and Ris hydrogen.19. A polymer according to wherein Rrepresents a linear Cto Calkyl group. This invention relates to polymers effective to improve the low-temperature properties of fuel oils and to fuel oil compositions containing the polymers.Fuel oils, whether derived from petroleum or from vegetable sources, contain components, e.g., n-alkanes or methyl n-alkanoates, that at low temperature tend to precipitate as large, plate-like crystals or spherulites of wax in such a way as to form a gel structure which causes the fuel to lose its ability to flow. The lowest temperature at which the fuel will still flow is known as the pour point.As the temperature of a fuel falls and approaches the pour point, difficulties arise in transporting the fuel through lines and pumps. Further, the wax crystals that form tend to plug fuel lines, screens, and filters at temperatures above the pour point. These problems are well recognised in the art, and various additives have been proposed, many of which are in commercial use, for depressing the pour point of ...

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14-03-2019 дата публикации

AQUEOUS POLYMER DISPERSION FOR PAPER WITH A COPOLYMER OF VINYL ACETATE AND AN ACRYLATE MONOMER PREPARED IN THE PRESENCE OF A STARCH DERIVATIVE

Номер: US20190077982A1
Принадлежит: BASF SE

The invention relates to an aqueous dispersion of a polymer P, which comprises the emulsion polymerization of vinyl acetate, an acrylate monomer, which is a C-Calkyl acrylate or a C-Cmethacrylate, an α,β-ethlyenically unsaturated C-Ccarboxylic acid and at least one out of glycidyl methacrylate, glycidyl acrylate, allyl methacrylate and allyl acrylate, in the presence of a starch derivative. Optionally, an additional monomer is an ethylenically unsaturated sulfonic acid, an ethylenically unsaturated other monomer or both of them. The aqueous polymer dispersion and a powder form thereof are useful for a paper coating slip containing one of the aforementioned forms. A paper or a cardboard, which is coated with the paper coating slip, shows surface strength, which is expressed by a good dry pick resistance, a good wet pick resistance or good offset test results. The aqueous polymer dispersion or the powder form thereof is furthermore useful as a binder. 1: A paper coating slip , comprising:an inorganic pigment; andan aqueous dispersion comprising a polymer P, which is obtained by a process comprising:emulsifying a mixture comprising monomers in an aqueous medium, andpolymerizing the monomers in the presence of a free-radical initiator and a starch derivative,wherein the monomer mixture consists of:vinyl acetate, as a monomer (a),{'sub': 1', '10', '1', '10, 'at least one acrylate monomer, which is selected from the group consisting of a C-Calkyl acrylate and a C-Calkyl methacrylate, as a monomer (b),'}{'sub': 3', '6, 'at least one α,β-ethylenically unsaturated C-Ccarboxylic acid, as a monomer (c),'}at least one monomer selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, allyl methacrylate and allyl acrylate, as a monomer (d),optionally at least one ethylenically unsaturated sulfonic acid, as a monomer (e), andoptionally at least one ethylenically unsaturated other monomer, which is different from the monomers (a), (b), (c), (d) and (e), as a ...

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24-03-2016 дата публикации

VINYL ALCOHOL COPOLYMER AND METHOD FOR PRODUCING SAME

Номер: US20160083490A1
Принадлежит: KURARAY CO., LTD.

Provided is a vinyl alcohol-based copolymer, obtained by saponifying a copolymer of vinyl acetate and a polyfunctional monomer, wherein the polyfunctional monomer contains two or more ethylenic double bonds in its molecule, the vinyl alcohol-based copolymer has a side chain containing an ethylenic double bond and a molar ratio (d) of the ethylenic double bond to a total of vinyl alcohol units and vinyl acetate units is from 0.05/100 to 2/100, and the vinyl alcohol-based copolymer is water soluble. 1: A vinyl alcohol-based copolymer , obtained by saponifying a copolymer of vinyl acetate and a polyfunctional monomer ,wherein:the polyfunctional monomer comprises two or more ethylenic double bonds in a molecule of the polyfunctional monomer,the vinyl alcohol-based copolymer comprises a side chain comprising an ethylenic double bond and has a molar ratio (d) of the ethylenic double bond to a total of vinyl alcohol units and vinyl acetate units of 0.05/100 to 2/100, andthe vinyl alcohol-based copolymer is water soluble.2: The vinyl alcohol-based copolymer according to claim 1 , wherein the side chain comprises a vinyl ether group.3: The vinyl alcohol-based copolymer according to claim 1 , wherein the side chain comprises an allyl group.4: A method of producing the vinyl alcohol-based copolymer according to claim 1 , comprising:obtaining a vinyl ester-based copolymer by copolymerizing the vinyl acetate and the polyfunctional monomer; andsaponifying the vinyl ester-based copolymer.5: The method according to claim 4 , wherein the copolymerization is carried out at a molar ratio (p) of the polyfunctional monomer to the vinyl acetate of 0.1/100 to 5/100.6: The method according to claim 5 , wherein a ratio (d/p) of the molar ratio (d) to the molar ratio (p) is 0.2 to 0.8.7: The method according to claim 4 , wherein a rate of polymerization of the vinyl acetate is 20% to 90%.8: A dispersion stabilizer comprising the vinyl alcohol-based copolymer according to .9: The vinyl ...

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24-03-2016 дата публикации

Aqueous metal surface treatment agent for lithium ion secondary battery

Номер: US20160083608A1

This is to provide an aqueous metal surface treatment agent for a lithium ion secondary battery which can improve interlaminar adhesiveness between a metal member and a resin coating layer such as a film or a coated film, and solvent resistance without using trivalent chromium. The aqueous metal surface treatment agent for a lithium ion secondary battery comprises a polyvinyl alcohol resin containing 2 to 15 mol % of a 1,2-diol structural unit represented by the formula (1): Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.

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31-03-2022 дата публикации

INTERNALLY PLASTICIZED POLYVINYL CHLORIDE AND A PROCESS FOR PREPARATION THEREOF

Номер: US20220098396A1
Принадлежит: RELIANCE INDUSTRIES LIMITED

The present disclosure relates to an internally plasticized polyvinyl chloride resin and a process for preparation thereof. The internally plasticized polyvinyl chloride resin comprises a polyvinyl chloride (PVC) resin covalently bonded to at least one plasticizer. The process is simple and economical and provides internally plasticized PVC with enhanced flexibility, and improved characteristics than conventional PVC resin. 1. A process for preparing an internally plasticized polyvinyl chloride resin , said process comprising the following steps:(i) treating thermally a polyvinyl chloride (PVC) resin to allow partial dehydrochlorination to obtain partially unsaturated polyvinyl chloride resin;(ii) mixing the partially unsaturated polyvinyl chloride resin with a fluid medium to obtain a slurry, wherein said fluid medium is at least one selected from the group consisting of 1-propanol, 2-propanol, 1-butanol, 1-pentanol and ethylene glycol;(iii) heating the slurry at a temperature in the range of 70° C. to 120° C. to obtain heated slurry;(iv) adding at least one initiator and at least one plasticizer, under stirring, to the heated slurry to obtain a reaction mixture, wherein said plasticizer comprises allyl group, vinyl group or combination thereof;(v) maintaining the reaction mixture at a temperature in the range of 100° C. to 130° C., under stirring, for a time period in the range of 4 to 10 hours to obtain a product mixture comprising the internally plasticized polyvinyl chloride resin; and(vi) filtering the product mixture to obtain the internally plasticized polyvinyl chloride resin.2. The process as claimed in claim 1 , wherein the PVC resin has a chlorine content in the range of 56 wt % to 59 wt % claim 1 , and the partially unsaturated PVC resin obtained after step (i) of thermal treatment has chlorine content in the range of 48 wt % to 55 wt %.3. The process as claimed in claim 1 , wherein the PVC resin is waste PVC resin claim 1 , wherein said waste PVC resin ...

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25-03-2021 дата публикации

WATERBORNE SELF-POLISHING ANTIFOULING PAINT AND PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20210087411A1

The present invention provides a waterborne self-polishing antifouling paint and a preparation method and application thereof, and belongs to the technical field of marine antifouling paints. The waterborne self-polishing antifouling paint provided by the present invention includes the following components in parts by weight: 30-60 parts of waterborne self-polishing emulsion, 30-70 parts of waterborne slurry, 0.1-0.5 parts of waterborne leveling agent, 0.2-1 parts of waterborne defoamer, 0.5-1 parts of film-forming additive and 10-20 parts of water. The waterborne self-polishing antifouling paint provided by the present invention has an ultra-low content of volatile organic compounds (VOCs) (less than 20 g/L), and is environmentally friendly. The waterborne self-polishing antifouling paint can be formed into a paint film with good mechanical properties, stable self-polishing rate, and excellent water immersion resistance and antifouling performance. 1. A waterborne self-polishing antifouling paint , comprising the following components in parts by weight:30-60 parts of waterborne self-polishing emulsion, 30-70 parts of waterborne slurry, 0.1-0.5 parts of waterborne leveling agent, 0.2-1 parts of waterborne defoamer, 0.5-1 parts of film-forming additive and 10-20 parts of water, whereinthe waterborne self-polishing emulsion comprises the following raw materials in percent by mass:5-30% of silicone acrylate monomer, 10-40% of vinyl unsaturated monomer, 0.2-2% of acrylic acid, 5-20% of rosin, 0.1-1% of initiator, 0.5-3% of emulsifier, 0.01-0.1% of sodium bicarbonate, 0.1-1% of pH adjuster, and the balance being water;the waterborne slurry is prepared with an antifouling agent, a pigment/filler, an organic bentonite, a thickener, a waterborne wetting and dispersing agent and water, and the antifouling agent, the pigment/filler, the organic bentonite, the thickener, the waterborne wetting and dispersing agent and the water have a mass ratio of (40-60):(5-10):(3-4):(0.5-1 ...

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25-03-2021 дата публикации

ADHESIVE COMPOSITION AND MASKING ARTICLE FOR PRODUCING PRECISE PAINT LINES

Номер: US20210087436A1
Принадлежит:

An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article. 1. A method of making a masking article wherein the article is capable of substantially preventing one or more liquids or liquid-borne materials from contacting a masked surface , the method comprising i. about 0.2 parts by weight to 5 parts by weight of acrylic acid, methacrylic acid, a carboxylate salt thereof, or a mixture of two or more thereof, wherein the amount of carboxylate salt is determined based on the weight of the corresponding free acid;', 'ii. about 50 parts by weight to 95 parts by weight based on the total weight of the polymer of an acrylate or methacrylate ester of an alcohol having between 8 and 12 carbon atoms, or a mixture of two or more thereof;', 'iii. about 2 parts by weight to 45 parts by weight based on the total weight of the polymer of an acrylate or methacrylate ester including an alkylammonium functionality;', 'iv. about 10 parts by weight to 30 parts by weight based on the total weight of the polymer of vinyl acetate, isobutyl acrylate, N-vinyl pyrrolidone, or a mixture of two or more thereof; and', 'v. about 0 parts by weight to 2 parts by weight based on the total weight of the polymer of a crosslinker;, 'a. forming a reaction mixture comprising one or more surfactants and about 15 wt % to 60 wt % monomers in water, wherein the monomers consist essentially of'}b. polymerizing the monomers to form a polymerized mixture,c. coating the mixture onto a support, andd. drying the coated mixture.2. The method of claim 1 , wherein the one or more surfactants includes at least one cationic surfactant3 ...

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29-03-2018 дата публикации

Breathable Films With Microbial Barrier Properties

Номер: US20180086903A1
Принадлежит: Becton Dickinson and Co

Films for medical devices and/or packaging include polyethylene-poly(ethylene oxide) amphiphilic graft copolymers (PE-g-PEO) in their base polymer formulations of polyethylene and poly(ethylene oxide). The films may be treated to include a nitric-oxide releasing agent incorporated into the PE-g-PEO. Also, microbial agents for inclusion in medical devices are provided, which comprise: an olefin-poly(ethylene oxide) amphiphilic graft copolymer, wherein a portion of the poly(ethylene oxide) comprises end groups converted to a nitric oxide-releasing agent. The amphiphilic graft copolymer of the microbial agents may comprise a polyethylene-poly(ethylene oxide) amphiphilic graft copolymer (PE-g-PEO), a polypropylene-poly(ethylene oxide) amphiphilic graft copolymer (PP-g-PEO), or mixtures thereof

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02-04-2015 дата публикации

FORMULATIONS OF RANDOM POLYMERS FOR IMPROVING CRUDE PETROLEUM FLOW

Номер: US20150094441A1
Принадлежит:

The present invention is related to the use of formulations of new random copolymers and terpolymers, synthesized by a method of semi continuous emulsion polymerization, and that function as flow improvers, lowering the pour point and reducing the viscosity of Mexicans crude oils, which have gravities within the range of 9 to 30° API. 1. A method for producing random polymers , wherein said method comprises a process of semi-continuous emulsion polymerization involving a set of unit operations that are performed in a main reactor fed from one or several tanks in addition to their respective metering pump , at a reaction temperature in the range of between 50 and 95° C. , a rate of addition of a preemulsion from 0.003 to 0.009 g/mL-min , where the amount of monomers used is between 5 and 95% by weight , and the amount of transfer agent varies between 0.0 and 12 grams per 100.0 grams of the mixture of monomers.2. The method of claim 1 , wherein the rate of addition of the preemulsion is from 0.004 to 0.007 g/mL-min claim 1 , and the amount of monomers used is between 10 and 90 weight %.4. The method according to claim 3 , wherein m is from 20 to 650 and n is from 10 to 200.5. The method according to claim 3 , wherein m is from 40 to 620 and n is from 20 to 170.6. The method according to claim 3 , wherein said random polymer formulation comprises a mixture of copolymers having molecular weights in number ranging between 2 claim 3 ,000 to 90 claim 3 ,000 Daltons.7. The method according to claim 3 , wherein said molecular weights range in number between 5 claim 3 ,000 and 80 claim 3 ,000 Daltons.9. The method according to claim 8 , wherein u is from 10 to 200 and v is from 10 to 40.10. The method according to claim 8 , wherein u is from 30 to 170 and v is from 15 to 30.11. The method according to claim 8 , wherein said random polymer formulation comprises a mixture of copolymers having molecular weights ranging between 2 claim 8 ,000 to 90 claim 8 ,000 Daltons.12. The ...

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26-06-2014 дата публикации

POLYOXYALKYLENE MODIFIED VINYL ALCOHOL-BASED POLYMER AND USE THEREOF

Номер: US20140178609A1
Принадлежит: KURARAY CO., LTD.

Provided is a polyoxyalkylene modified vinyl alcohol-based polymer comprising a polyoxyalkylene group in a side chain, wherein the polymer has a viscosity average degree of polymerization of not less than 150 and not more than 5000, a degree of saponification of not less than 40 mol % and not more than 99.99 mol %, and a polyoxyalkylene group modification rate of not less than 0.05 mol % and not more than 10 mol %; and the polyoxyalkylene group is composed of a polyoxypropylene block and a (poly)oxyethylene block and is represented by the following general formula (I). Such polymer is excellent in temperature-sensitive thickening properties. 2. The polyoxyalkylene modified vinyl alcohol-based polymer according to claim 1 , wherein claim 1 , when measuring viscosity of a 4 mass % aqueous solution of the polyoxyalkylene modified vinyl alcohol-based polymer with a BL type viscometer at a rotor rotation speed of 6 rpm claim 1 , a viscosity ratio η/η claim 1 , where ηis a viscosity at 60° C. and ηis a viscosity at 20° C. claim 1 , is 2.0 or more.3. An aqueous solution comprising the polyoxyalkylene modified vinyl alcohol-based polymer according to .5. A coating agent comprising the polyoxyalkylene modified vinyl alcohol-based polymer according to .6. A coated article claim 5 , wherein the coating agent according to is coated on a surface of a substrate.7. A method of producing the coated article according to claim 6 , the method comprising:coating the coating agent on the surface of the substrate having a previously adjusted temperature of not less than 50° C. and not more than 100° C.8. An ink jet recording material claim 5 , wherein the coating agent according to is coated on a surface of a substrate.9. A thermal paper claim 1 , comprising the polyoxyalkylene modified vinyl alcohol-based polymer according to .10. A release paper base paper comprising the polyoxyalkylene modified vinyl alcohol-based polymer according to .11. The release paper base paper according to ...

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19-04-2018 дата публикации

A Polymer and a Composition Comprising the Polymer

Номер: US20180104173A1
Принадлежит:

The present invention relates to a hair styling and restyling composition comprising a cosmetically acceptable pressure sensitive adhesive polymer with restyling performance and improved washout from hair, to a pressure sensitive adhesive polymer with glass transition temperatures of lower than −20° C., to a process for preparing said pressure sensitive adhesive polymer and to use of said pressure sensitive adhesive polymer for improving the restylability and washout behavior of a hair styling and restyling composition. 1. A pressure sensitive adhesive polymer with a glass transition temperature of lower than −20° C. , wherein said pressure sensitive adhesive polymer comprises monomers A) to D) and crosslinker E) in polymerized form:{'sub': 2', '12, 'A) a C-Calkyl (meth)acrylate,'}{'sub': 2', '10, 'B) a vinyl ester of C-Cmonocarboxylic acid,'}optionally C) an ethylenically unsaturated carboxylic acid having 3 to 10 carbon atoms or anhydride thereof,{'sub': 1', '4', 'w, 'D) a hydrophilic monomer selected from the group consisting of a polyethyleneglycol mono(meth)acrylate and C-Calkoxy-polyethyleneglycol mono(meth)acrylate with a Mof 500-3000 g/mol, and'}E) a cosmetically acceptable crosslinker, preferably a (poly)alkenyl ether,wherein the cosmetically acceptable crosslinker E) is used in amount of from 0.4 to 0.9 wt %, based on the sum of A) to E).2. The polymer according to claim 1 , comprising{'sub': 2', '12, 'A) from 60 to 95 wt %, of a C-Calkyl (meth)acrylate,'}{'sub': 2', '10, 'B) from 1 to 20 wt %, of a vinyl ester of C-Cmonocarboxylic acid,'}C) from 0 to 6.5 wt %, of an ethylenically unsaturated carboxylic acid having 3 to 10 carbon atoms or anhydride thereof,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'D) from 0.1 to 25 wt %, of the hydrophilic monomer according to , and'}E) from 0.4 to 0.9 wt %, a cosmetically acceptable crosslinker,wherein the weight percents are all based on the sum of A) to E).3. The polymer according to claim 1 , wherein the ...

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19-04-2018 дата публикации

Ethylene-vinyl alcohol copolymer, process for producing the same, and laminate

Номер: US20180105615A1

An object of the invention is to provide an EVOH which has improved melt moldability and is excellent in terms of gas barrier property and secondary formability. The present invention relates to an ethylene-vinyl alcohol copolymer that, when examined by liquid chromatography, gives an ethylene content distribution curve which has at least two peaks and in which the ethylene content (a) of a component that shows a highest peak (A), the ethylene content (b) of a component that shows a second highest peak (B), and the proportion (v) and distribution of component(s) (V) having ethylene contents (w) corresponding to specific regions (W) are within specific ranges.

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29-04-2021 дата публикации

DISPERSION POWDER COMPOSITION CONTAINING VINYL ALCOHOL COPOLYMERISATE

Номер: US20210122839A1
Принадлежит: Wacker Chemie AG

Water-redispersible polymer powders with improved characteristics in building materials are prepared using a drying aid which is a polyvinyl alcohol copolymer also containing vinyl ester monomers and specific comonomers. 111.-. (canceled)12. A water-redispersible polymer powder composition , comprising:at least one vinyl alcohol copolymer, obtained through the free-radical polymerization in an aqueous medium of one or more ethylenically-unsaturated monomers in the presence of a protective colloid and/or emulsifier followed by drying the resulting aqueous polymer dispersion after addition of a protective colloid as a drying aid, whereinthe drying is carried out with a protective colloid of one or more vinyl alcohol copolymers comprising a) 80 to 99 of vinyl alcohol monomer units, b) 0.5 to 10 mol % of monomer units derived from vinyl esters of unbranched or branched alkyl carboxylic acids having 3 to 18 carbon atoms, c) 0.5 to 10 mol % of monomer units derived from ethylenically-unsaturated monomers having one or more functional groups selected from the group consisting of carboxylic acid moieties, sulfonic acid moieties, quaternized amine moieties, phosphoric acid moieties, salts thereof, and mixtures thereof, and d) 0 to 5 mol % of vinyl acetate monomer units, wherein the values in mol % in each case add up to 100 mol %.13. The water-redispersible polymer powder composition of claim 12 , wherein the vinyl alcohol copolymer includes monomer units b) derived from a vinyl ester of α-branched monocarboxylic acids having 9 to 10 carbon atoms.14. The water-redispersible polymer powder composition of claim 13 , wherein the vinyl alcohol copolymer includes monomer units c) derived from vinylsulfonic acid claim 13 , 2-acrylamido-2-methylpropanesulfonic acid claim 13 , and salts thereof.15. The water-redispersible polymer powder composition of claim 12 , wherein the vinyl alcohol copolymer includes d) 1 to 4 mol % of vinyl acetate monomer units.16. The water-redispersible ...

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26-04-2018 дата публикации

Ethylene copolymerisates having improved low-temperature properties and good oil resistance, vulcanizable mixtures made therefrom and vulcanizates

Номер: US20180112020A1
Принадлежит: ARLANXEO DEUTSCHLAND GMBH

The present invention relates to copolymers of ethylene, vinyl esters of an akyl carboxylic acid and other specific unsaturated carboxylic esters which have lower glass transition temperature than copolymers of ethylene and vinyl esters of an alkyl carboxylic acid, and also to production and use of these, to vulcanizable mixtures comprising the copolymers of the invention, to crosslinking of these and to vulcanizates and mouldings obtainable therefrom.

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04-05-2017 дата публикации

POLYVINYL ACETATE LATEX

Номер: US20170121517A1
Принадлежит:

The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R—SH, where Ris a C-Calkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C-C-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content. 1. A composition comprising vinyl acetate polymer particles dispersed in an aqueous phase , wherein the aqueous phase comprises 1) a chain transfer agent; and 2) a vinyl acetate oligomer; wherein the chain transfer agent is sodium hypophosphite or X—R—SH , where Ris a C-Calkyl group and X is sulfonate , hydroxyl , sulfate , phosphate , phosphonate , carboxylic acid or a salt thereof , or C-C-alkyl carboxylate; and wherein the vinyl acetate oligomer has a weight average molecular weight (M) in the range of from 1000 to 7000 Daltons.2. The composition of claim 1 , wherein the vinyl acetate polymer is a copolymer that comprises structural units of vinyl acetate and at least one additional monomer selected from the group consisting of an acrylate claim 1 , a methacrylate claim 1 , a phosphorus acid monomer claim 1 , an acrylamide claim 1 , a sulfonate monomer claim 1 , and a vinyl ester of a branched carboxylic acid monomer claim 1 , wherein the concentration of the vinyl acetate oligomer is in the range of from 0.05 to 2.5 weight percent claim 1 , based on the weight of the aqueous phase.3. The composition of claim 2 , wherein the chain transfer agent is sodium hypophosphite claim 2 , potassium hypophosphite claim 2 , mercaptoethane sulfonate claim 2 , mercaptopropionic acid or a salt thereof claim 2 , or mercaptoethanol claim 2 , and the concentration of the vinyl acetate oligomer is in the range of from 0.1 to 1 weight percent claim 2 , ...

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25-08-2022 дата публикации

Vae dispersion for d3 wood adhesives

Номер: US20220267651A1
Принадлежит: Celanese International Corp

Disclosed herein are D3 water-resistant adhesive compositions comprising aqueous copolymer dispersions and uses of such compositions. The compositions are useful as binders for porous and semi-porous substrates such as wood, paper, and/or board. Importantly, the adhesive compositions have very low formaldehyde content and little or no plasticizer content.

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16-04-2020 дата публикации

PROCESS FOR PURIFICATION OF VINYL ACETATE FOR USE IN POLYMERIZATION IN THE PRESENCE OF ETHYLENE

Номер: US20200115315A1
Принадлежит: Braskem S.A.

Process for purification of unreacted vinyl acetate monomers comprising the steps of preliminarily loading an adsorbent agent bed with a mixture comprising an inert gas and fresh vinyl acetate; and feeding said adsorbent agent bed with unreacted vinyl acetate monomers to remove acetic acid. 1. A process for purification of unreacted vinyl acetate monomers comprising:i) drying a fresh acetate monomer stream in a molecular sieve bed;ii) subjecting the fresh vinyl acetate to a polymerization process in the presence of ethylene to produce an EVA polymer;iii) recovering the unreacted vinyl acetate monomers from the polymerization process;iv) drying unreacted vinyl acetate monomer in a molecular sieve bed;v) preliminarily loading an absorbent agent bed with a mixture comprising an inert gas and fresh vinyl acetate at low concentration; andvi) feeding the absorbent agent bed with the dried unreacted vinyl acetate monomers to remove the acetic acid,wherein the unreacted vinyl acetate monomer is a vinyl acetate monomer recovered from the EVA polymerization process, and the inert gas is a nitrogen or saturated hydrocarbon selected from the group consisting of methane, ethane, propane, butane and combinations thereof.2. The process according to claim 1 , wherein in the dehydration steps i) and iv) the vinyl acetate monomers are dried by feeding through a molecular sieve bed at room temperature and positive pressure.3. The process according to claim 1 , further comprising subjecting the molecular sieve bed to a dehydration treatment at a temperature range of 170 to 270° C. claim 1 , and at a pressure range of 0 and 760 mmHga for a period between 2 and 24 hours claim 1 , by contacting said bed with an inert gas.4. The process according to claim 1 , further comprising subjecting the molecular sieve bed to a dehydration treatment at a temperature range between 250 and 270° C. claim 1 , and at a pressure range between 0 and 76 mmHga claim 1 , for from 2 to 8 hours claim 1 , by ...

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11-05-2017 дата публикации

SECONDARY SUSPENDING AGENT FOR SUSPENSION POLYMERISATION REACTION

Номер: US20170129979A1
Принадлежит:

Use of a polymer as a secondary suspending agent in a suspension polymerisation reaction is provided. The polymer comprising (i) residues of at least one ester-containing monomer, the ester-containing monomer (s) comprising one polymerisable carbon-carbon double bond per monomer and an ester group, and (ii) residues of at least one monomer comprising a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group the monomer (s) comprising a sulfonate, sulfonic acid, sulfonic ester group, sulfonamide or sulfonyl halide group comprising one polymerisable carbon-carbon double bond per monomer and a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group, the polymer optionally being partially hydrolysed such that a proportion of said ester groups form alcohol groups, the degree of hydrolysis of the polymer being from 0 to 30 mol %. 1. Use of a polymer as a secondary suspending agent in a suspension polymerisation reaction , the polymer comprising (i) residues of at least one ester-containing monomer , the ester-containing monomer (s) comprising one polymerisable carbon-carbon double bond per monomer and an ester group , and (ii) one or more residues of at least one monomer comprising a sulfonate , sulfonic acid , sulfonic ester , sulfonamide or sulfonyl halide group , the monomer(s) comprising a sulfonate , sulfonic acid , sulfonic ester group , sulfonamide or sulfonyl halide group comprising one polymerisable carbon-carbon double bond per monomer and a sulfonate , sulfonic acid , sulfonic ester , sulfonamide or sulfonyl halide group , the polymer optionally being partially hydrolysed such that a proportion of said ester groups form alcohol groups , the degree of hydrolysis of the polymer being from 0 to 30 mol %.2. A use according to comprising the use of an emulsion of a polymer claim 1 , or a solution of the said polymer is added to a suspension polymerisation reaction mixture.3. (canceled)4. A use according to in which the ...

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02-05-2019 дата публикации

POLYVINYL ALCOHOL STABILIZED ACETATE ETHYLENE COPOLYMER DISPERSIONS AS ADHESIVES FOR CREPED WEBS

Номер: US20190127916A1
Принадлежит:

A crepe process includes applying an adhesive composition to a nonwoven web, drying, and creping the nonwoven web on a creping drum. The improvement includes using an adhesive composition that includes an aqueous copolymer dispersion obtained by emulsion polymerization of a monomer mixture including 65 to 94.5% by weight of vinyl acetate, 5 to 30% by weight of ethylene, (meth)acrylamide, and 0.1 to 4% by weight of an N-methylol functional monomer. The N-methylol functional monomer constitutes from 25 to 85% by weight of the combined amounts of acrylamide and N-methylol functional monomer, which combined amounts constitute from 0.5 to 5% by weight of the monomer mixture. The emulsion polymerization is performed in the presence of 1 to 10% by weight of polyvinyl alcohol, based on the total weight of all monomers used for the polymerization. The adhesive composition does not include alkylphenol ethoxylates, phosphate ester surfactants, or sodium laureth sulfate. 2. The process of claim 1 , wherein ethylene constitutes from 10% to 20% by weight of the monomer mixture.3. The process of or claim 1 , wherein the (meth)acrylamide comprises acrylamide.4. The process of any preceding claim claim 1 , wherein the monomer mixture comprises from 0.3 to 3.0% by weight of the N-methylol functional monomer.5. The process of any preceding claim claim 1 , wherein the N-methylol functional monomer is N-methylolacrylamide.6. The process of any preceding claim claim 1 , wherein acrylamide and N-methylolacrylamide are present in a 1:1 mole ratio in the monomer mixture.7. The process of any preceding claim claim 1 , wherein the copolymer has a Tg in a range from −10° C. to +20° C.8. The process of any preceding claim claim 1 , wherein the copolymer has a Tg in a range from 0° C. to 15° C.9. The process of any preceding claim claim 1 , wherein the polyvinyl alcohol has a degree of hydrolysis in a range from 86% to 89 mol %.10. The process of any preceding claim claim 1 , wherein the process ...

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21-05-2015 дата публикации

Low formaldehyde vinyl ester/ethylene emulsion copolymers

Номер: US20150141553A1
Принадлежит: CELANESE EMULSIONS GMBH

A vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising at least one vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol and a free radical redox polymerization initiator system comprising i-butyl hydroperoxide as an oxidizing agent and at least one of a sulfuric acid-based compound and erythorbic acid or a salt thereof as a reducing agent. The monomer mixture comprises from 70 wt % to 95 wt % of said at least one vinyl ester and from 5 wt % to 30 wt % of ethylene based on the total weight of monomers in said mixture and the copolymer has a formaldehyde content of less than 5.0 ppmw as determined by ISO-15173.

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24-05-2018 дата публикации

VERSATILE RAFT AGENT

Номер: US20180141912A1

The present invention provides A RAFT agent of formula (I) where Ris selected from Cl Br, I, F, CF, CN, C0R, CONR, OMe, N0; R is selected from H, optionally substituted alkyl and optionally substituted aryl; and Ris selected from: 2. The RAFT agent according to claim 1 , wherein Ris selected from Cl claim 1 , Br claim 1 , I and F.4. The polymer according to claim 3 , wherein Ris selected from Cl claim 3 , Br claim 3 , I and F.5. The polymer according to claim 3 , wherein the one or more ethylenically unsaturated monomers of formula (IV) are selected from the group consisting of acrylates claim 3 , methacrylates claim 3 , styrenics claim 3 , vinyl aromatics and heteroaromatics claim 3 , conjugated dienes claim 3 , acrylamides claim 3 , methacrylamides claim 3 , acrylonitrile claim 3 , methacrylonitrile claim 3 , maleic anhydride and maleimides claim 3 , vinyl sulphones claim 3 , vinyl sulphoxides claim 3 , vinyl phosphinates claim 3 , vinyl phosphonates claim 3 , and combinations thereof.6. The polymer according to claim 3 , wherein the one or more ethylenically unsaturated monomers of formula (V) are selected from the group consisting of vinylethers claim 3 , vinyl alkanoates claim 3 , vinyl halides claim 3 , N-vinyl amides claim 3 , N-vinyl lactams claim 3 , N-vinyl heteroarmoatics claim 3 , vinyl silanes claim 3 , vinyl phosphates claim 3 , allyl or diallyl monomers claim 3 , and combinations thereof.7. The polymer according to claim 3 , wherein both x and y of formula (ii) and (II) are 1.8. The polymer according having a dispersity (Ð) of less than 1.4.10. The method according to claim 9 , wherein the polymer is prepared by polymerising under the control of the RAFT agent (I) a mixture of monomers of formula (IV) and (V) that comprises at least 60 mol % of monomer of formula (V) claim 9 , relative to monomer of formula (IV).11. The method according to claim 9 , wherein the polymer is prepared by polymerising under the control of the RAFT agent (I) a mixture of ...

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04-06-2015 дата публикации

Hydrophobic vinyl ester copolymer dispersions

Номер: US20150152291A1
Принадлежит: CELANESE EMULSIONS GMBH

An aqueous copolymer dispersion is obtained by emulsion polymerization of a monomer mixture comprising, as main monomers, 10 to 35 weight % of ethylene, 30 to 60 weight % of a vinyl ester of a carboxylic acid having 1 to 9 carbon atoms and 15 to 50 weight % of a vinyl ester of a branched carboxylic acid having 3 to 15 carbon atoms. The monomer mixture also contains 0.1 to 10 weight % of an ethylenically unsaturated monocarboxylic or dicarboxylic acid having 3 to 4 carbon atoms and 0.1 to 10 weight % of a methacrylic or acrylic acid ester modified with epoxide groups and/or hydroxyl groups. The dispersion is stabilized with 0.02 to 2 weight % of a protective colloid, 0.01 to 5 weight % of a non-ionic surfactant and 0.01 to 5 weight % of an anionic surfactant. All weight percentages are based on the total weight of the main monomers.

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16-05-2019 дата публикации

Alkoxylated Unsaturated Fatty Acids and Uses Thereof

Номер: US20190144584A1
Принадлежит: ELEVANCE RENEWABLE SCIENCES, INC.

Alkoxylated fatty acids are disclosed herein, as well as methods of making and using such compounds. In some embodiments, the alkoxylated fatty acids are formed from monomers derived from natural oils. In some embodiments, the alkoxylated fatty acids are used as surfactants for making synthetic latex by emulsion polymerization. In some other embodiments, the alkoxylated fatty acids are used as surfactants for making synthetic rubber, such as styrene-butadiene rubber. In some other embodiments, the alkoxylated fatty acids are used as surfactants in a composition for treatment of gas or oil wells, for cleaning applications, for use in various laundry-related applications, for use in personal care compositions, or for use as solvents for coating applications, such as reactive and non-reactive waterborne coating applications. 137-. (canceled)39. The composition of claim 38 , wherein Ris a hydrogen atom.40. The composition of claim 38 , wherein Ris Calkyl.41. The composition of claim 38 , wherein Ris methyl or ethyl.42. The composition of claim 38 , wherein Gis claim 38 , independently at each occurrence claim 38 , —CH—CH— claim 38 , —CH—CH—CH— claim 38 , —CH(CH)—CH— claim 38 , —CH—CH(CH)— claim 38 , or —CH—CH—CH—CH—.43. The composition of claim 42 , wherein Gis —CH—CHat each occurrence.44. The composition of claim 38 , wherein Ris a hydrogen atom.45. The composition of claim 38 , wherein Ris Calkyl.46. The composition of claim 45 , wherein Ris methyl or ethyl.47. The composition of claim 38 , wherein Ris Calkenyl.48. The composition of claim 47 , wherein Ris —CH—CH═CHor —CH—CH═CH—CH—CH.49. The composition of claim 38 , wherein n is an integer from 6 to 50.50. The composition of claim 41 , wherein n is an integer from 6 to 50.50. The composition of claim 43 , wherein n is an integer from 6 to 50.50. The composition of claim 44 , wherein n is an integer from 6 to 50.51. The composition of claim 38 , wherein the resin is a film-forming polymer.52. The composition of claim ...

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16-05-2019 дата публикации

LOW OUTGASSING CLEAN ADHESIVE

Номер: US20190144720A1
Принадлежит: AVERY DENNISON CORPORATION

Provided herein is a solvent-based pressure sensitive adhesive comprising a polymer comprising a vinyl acetate monomer, an acrylic ester monomer, and a monomer having hydroxyl or amine functionality. The adhesive also comprise a crosslinker. The coated and dried adhesive has outgassing of less than 2000 ng/cm, even when applied to an electronic device that is operated at elevated temperature. 1. A solvent-based pressure sensitive adhesive formulation comprising:a polymer comprising a vinyl acetate monomer, an acrylic ester monomer, and a monomer having a hydroxyl or amine functionality;a solvent; anda crosslinker.2. The formulation of claim 1 , wherein the polymer has a glass transition temperature from −40 to −10° C.3. The formulation of claim 1 , wherein the polymer has at least one of: a weight average molecular weight from 25 claim 1 ,000 to 400 claim 1 ,000 g/mol claim 1 , a number average molecular weight from 25 claim 1 ,000 to 400 claim 1 ,000 g/mol claim 1 , a polydispersity index from 1 to 10 claim 1 , or combinations thereof.4. The formulation of claim 1 , wherein the polymer is present from 10 to 60 wt. % claim 1 , based on the total weight of the formulation.5. The formulation of claim 1 , wherein the polymer comprises from 10 to 90 wt. % polyvinyl acetate monomer claim 1 , based on the total weight of the polymer.6. The formulation of claim 1 , wherein the polymer comprises from 10 to 40 wt. % acrylic ester monomer claim 1 , based on the total weight of the polymer.7. The formulation of claim 1 , wherein the polymer comprises from 5 to 50 wt. % monomer having a hydroxyl or amine functionality claim 1 , based on the total weight of the polymer.8. The formulation of claim 1 , wherein the crosslinker is present from 0.05 to 5 wt. % claim 1 , based on the total weight of the formulation.9. The formulation of claim 1 , wherein the solvent is present from 40 to 90 wt. % claim 1 , based on the total weight of the formulation.10. A solvent-based pressure ...

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07-05-2020 дата публикации

AQUEOUS COATINGS CONTAINING BIOSURFACTANTS AS BIO-ADJUVANTS AND METHODS FOR USING SAME

Номер: US20200140694A1
Принадлежит:

Disclosed is an aqueous coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a rhamnolipid and/or sophorolipid biosurfactant, which in one embodiment is a mono-rhamnolipid. Also provided is an aqueous architectural coating composition including at least one latex polymer derived from at least one monomer copolymerized or blended with a biosurfactant, at least one pigment, and water. 1. An aqueous coating composition , comprising a dispersion comprising(a) at least one latex polymer;(b) a biocide;(c) a biosurfactant comprising a mono-rhamnolipid in an amount effective to reduce the necessary biocide concentration in the coating composition compared to an analogous composition that lacks the biosurfactant; and(d) water.2. The composition of claim 1 , further comprising a di-rhamnolipid claim 1 , wherein the wt % ratio of mono-rhamnolipid to di-rhamnolipid is in the range of between about 90:10 and 99:1 claim 1 , respectively.3. The composition of claim 1 , further comprising a di-rhamnolipid claim 1 , wherein the wt % ratio of mono-rhamnolipid to di-rhamnolipid is in the range of between about 85:15 and 99.5:0.5 claim 1 , respectively.4. The composition of claim 1 , further comprising a di-rhamnolipid claim 1 , wherein the wt % ratio of mono-rhamnolipid to di-rhamnolipid is in the range of between about 80:20 and 99.9:0.1 claim 1 , respectively.5. The composition of claim 1 , further comprising a di-rhamnolipid claim 1 , wherein the wt % ratio of mono-rhamnolipid to di-rhamnolipid is in the range of between about 50:50 and 99.9:0.1 claim 1 , respectively.6. The composition of claim 1 , wherein the effective amount of the biosurfactant is less than 5000 ppm claim 1 , 3000 ppm claim 1 , 2000 ppm claim 1 , 1000 ppm claim 1 , 800 ppm claim 1 , 500 ppm claim 1 , 300 ppm claim 1 , 200 ppm or 100 ppm of composition.7. The composition of claim 1 , wherein the effective amount of the biosurfactant is less than ...

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17-06-2021 дата публикации

Modified vinyl alcohol-based polymer and dispersion stabilizer for suspension polymerization

Номер: US20210179757A1
Автор: Wataru Watanabe
Принадлежит: Denka Co Ltd

A modified vinyl alcohol-based polymer including a polyoxyalkylene unit represented by a general formula (I) in a side chain and a carbonyl unit represented by a general formula (II) at a main chain terminal, wherein with respect to a total mole number of monomer units constituting the main chain of the modified vinyl alcohol-based polymer, a ratio of a mole number of monomer units having the polyoxyalkylene unit represented by the general formula (I) in the side chain to is 0.01 mol % to 5 mol %, and a ratio of a mole number of the carbonyl unit represented by the general formula (II) is 0.01 mol % to 0.5 mol %.

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17-06-2021 дата публикации

Resin material, aqueous solution, and adhesive

Номер: US20210179900A1
Принадлежит: Kuraray Co Ltd

The present invention provides a resin material that comprises an ethylene-modified vinyl alcohol polymer as a main component, and that excels in hue, water solubility, and aqueous-solution viscosity stability. The present invention also provides an aqueous solution and an adhesive comprising such a resin material. The present invention relates to a resin material comprising an ethylene-modified vinyl alcohol polymer and sodium acetate, wherein:the ethylene-modified vinyl alcohol polymer has an ethylene unit content of 1 mol % or more and less than 15 mol %, a viscosity-average degree of polymerization of 200 or more and less than 3,000, and a degree of saponification of 80 mol % or more and less than 99.9 mol %, and comprises 0.0005 mol % or more and 0.10 mol % or less of a propyl group at one end of the polymer, andthe sodium acetate content is 0.05 mass % or more and less than 2 mass %.

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07-06-2018 дата публикации

ALKENYL ETHER-VINYL ESTER COPOLYMER

Номер: US20180155477A1
Автор: Sugihara Shinji
Принадлежит: MARUZEN PETROCHEMICAL CO., LTD.

An alkenyl ether-vinyl ester copolymer contains a repeating unit derived from a hydroxyl group-containing alkenyl ether represented by the following formula (1), and a repeating unit derived from a vinyl ester represented by the following formula (2): 2. The alkenyl ether-vinyl ester copolymer according to claim 1 , wherein the alkenyl ether-vinyl ester copolymer has a lower critical solution temperature water of from 1° C. to 99° C.3. The alkenyl ether-vinyl ester copolymer according to claim 1 , wherein the hydroxyl group-containing alkenyl ether is a vinyl ether containing an oxyethylene unit.4. The alkenyl ether-vinyl ester copolymer according to claim 1 , wherein the vinyl ester is an aliphatic vinyl ester comprising a number of carbon atoms of from 4 to 6.5. The alkenyl ether-vinyl ester copolymer according to claim 2 , wherein the hydroxyl group-containing alkenyl ether is a vinyl ether containing an oxyethylene unit.6. The alkenyl ether-vinyl ester copolymer according to claim 2 , wherein the vinyl ester is an aliphatic vinyl ester comprising a number of carbon atoms of from 4 to 6.7. The alkenyl ether-vinyl ester copolymer according to claim 3 , wherein the vinyl ester is an aliphatic vinyl eater comprising a number of carbon atoms of from 4 to 6. The present invention relates to an alkenyl ether-vinyl ester copolymer, and more specifically relates to an alkenyl ether-vinyl eater copolymer that contains a hydroxyl group on the side chain thereof and exhibits temperature responsiveness in a temperature range of from 1° C. to 99° C.The studies on temperature responsive polymers showing a reversible change of from hydrophilicity on a low temperature side to hydrophobicity on a high temperature side on temperature stimulation are receiving attention. The polymers are expected to be applied to a drug carrier, a wound dressing material, an artificial muscle, a microcapsule, a biomachine, a biosensor, a separation membrane, and the like, by utilizing the property ...

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23-05-2019 дата публикации

Grafted Polymers

Номер: US20190153140A1
Принадлежит: Rheomod de México, S.A.P.I. de C.V.

A process is provided for grafting CRP synthesized polymers to dienes and polyolefins in the presence of a CRP controlling agent. Chain scission is minimal. Graft yield can be high and is proportional to the amount of CRP controlling agent added. The grafting process can be carried out either in a molten phase, preferably by reactive extrusion, or in a solvent-based process. The process provides novel families of grafted polyolefins and dienes, which show promising applications as new materials and as additives in the polymer industry. 1. A process for making a grafted polymer , comprising:i) making a controlled free radical polymer or copolymer using a controlled free radical polymerization (CRP) process; andii) grafting the controlled free radical polymer or copolymer to a polyolefin or to a diene polymer in the presence of a CRP controlling agent.2. A process according to claim 1 , wherein the controlled free radical polymer or copolymer is synthesized using a CRP process or technique selected from the group consisting of RITP claim 1 , RAFT claim 1 , ATRP claim 1 , nitroxide mediated claim 1 , alkoxyamine mediated controlled free radical polymerization and iodine mediated controlled free radical polymerization.3. (canceled)4. A process according to claim 1 , wherein the controlled free radical polymer or copolymer contains at least 30% wt of styrene.56.-. (canceled)7. A process according to claim 1 , wherein the controlled free radical polymer or copolymer contains from 1 to 30% wt of glycidyl methacrylate.8. A process according to claim 7 , wherein the controlled free radical polymer or copolymer contains from 1 to 60% wt of methyl methacrylate.9. A process according to claim 1 , wherein the controlled free radical polymer or copolymer is a random polymer or a random copolymer claim 1 , wherein the controlled free radical polymer or copolymer is not a block copolymer claim 1 , and wherein the controlled free radical polymer or copolymer contains from 0 to 60% ...

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14-05-2020 дата публикации

Process for Producing Ethylene Copolymers

Номер: US20200148800A1
Принадлежит:

A process for producing an ethylene copolymer, the process including: (a) contacting ethylene with at least one polar comonomer in the presence of at least one modifier and at least one free radical initiator in a tubular reactor under polymerization conditions including a pressure of from 225 to 270 MPa; (b) injecting the at least one free radical initiator into the reactor at a plurality of reaction zones spaced along the length of the reactor, wherein each reaction zone comprises an inlet and an outlet; (c) maintaining the temperature at the inlet of each reaction zone at 150° C. or less, and the temperature at the outlet of each reaction zone is at least 177° C.; (d) controlling the modifier flow at a rate of from 0.02 to 0.986 wt % of the copolymer; and (e) recovering the ethylene copolymer from the tubular reactor, is provided. 1. A process for producing an ethylene copolymer , the process comprising:(a) contacting ethylene with at least one polar comonomer in the presence of at least one modifier and at least one free radical initiator in a tubular reactor under polymerization conditions including a pressure of from 225 to 270 MPa;(b) injecting the at least one free radical initiator into the reactor at a plurality of reaction zones spaced along the length of the reactor, wherein each reaction zone comprises an inlet and an outlet;(c) maintaining the temperature at the inlet of each reaction zone at 150° C. or less, and the temperature at the outlet of each reaction zone at at least 177° C.;(d) controlling the modifier flow at a rate of from 0.02 to 0.986 wt % of the copolymer; and(e) recovering the ethylene copolymer from the tubular reactor.2. The process of claim 1 , wherein the polymerization conditions include a pressure of from 230 to 255 MPa.3. The process of claim 1 , wherein the temperature at the inlet of each reaction zone is from 125 to 145° C.4. The process of claim 1 , wherein the temperature at the outlet of each reaction zone is at least 200° ...

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28-08-2014 дата публикации

Cross-Linkable Monomers and Polymers and the Use Thereof

Номер: US20140243468A1
Автор: Martin Jakob, Stefan Nogai
Принадлежит: CELANESE EMULSIONS GMBH

The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance. The cross-linkable monomer is a compound in acid or salt form comprising an anion of the formula (I) and one or more cations for producing electrical neutrality, where R 1 and R 2 represent, independently of one another, hydrogen alkyl, cycloalkyl, aryl, aralkyl, —COOR 5 , —COO − cat + or —CON(R 6 R 7 ), R 6 and R 7 represent, independently of one another, hydrogen, alkyl, or aryl, cat 4 represents a monovalent cation, and one of the groups R 1 or R 2 may also represent a group —X—R 4 —CR 5 (OH)(SO 3 —), wherein X, R 4 , and R 5 assume one of the meanings listed below, R 3 represents hydrogen, alkyl, or aryl, X is selected from the group of direct C—C bond, —O—, —CH 2 —O—, —CH 2 —NR 8 —, —COO— or —CONR 8 —, R 8 represents hydrogen, alkyl, or aryl, R 4 represents alkylene, polyoxyalkylene, cycloalkylene, or arylene, and R 5 represents hydrogen, alkyl, cycloalkyl, or aryl.

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14-06-2018 дата публикации

USE OF POLYMER POWDER COMPOSITIONS THAT CAN BE REDISPERSED IN WATER AND HAVE CATIONIC FUNCTIONALITY, AS FLOCCULATION AID

Номер: US20180161699A1
Принадлежит:

The invention relates to the use of polymer powder compositions that can be redispersed in water and have cationic functionality, as flocculation aid, for example for dewatering waters or waste waters that are laden with solids. 1. The use of water-redispersible polymer powder compositions having cationic functionality as flocculation aids.2. The use as claimed in claim 1 , characterized in that the water-redispersible polymer powder compositions contain a polymer which is obtained by means of free-radical polymerization in an aqueous medium of one or more ethylenically unsaturated monomers in the presence of protective colloid and/or emulsifier claim 1 , and then the aqueous polymer dispersion obtained claim 1 , after addition of a protective colloid as drying aid claim 1 , is dried claim 1 , the cationic functionality being introduced by adding a cationic polymer during the polymerization and/or on conclusion of the polymerization and/or in the course of drying.3. The use as claimed in or claim 1 , characterized in that the water-redispersible polymer powder compositions having cationic functionality contain 1% to 10% by weight of a cationic polymer claim 1 , based on the total weight of the polymer constituents of the water-redispersible polymer powder composition.4. The use as claimed in to claim 1 , characterized in that the cationic polymer used is a homo- or copolymer of one or more cationic monomers having a quaternary ammonium group from the group comprising diallyldimethylammonium chloride (DADMAC) claim 1 , diallyldiethylammonium chloride (DADEAC) claim 1 , (3-methacryloyloxy)propyltrimethylammonium chloride (MPTAC) claim 1 , (2-methacryloyloxy)ethyltrimethyl-ammonium chloride (METAC) claim 1 , (3-methacrylamido)propyl-trimethylammonium chloride (MAPTAC).5. The use as claimed in to claim 1 , characterized in that the cationic polymers contain 50% to 100% by weight of cationic monomer units having a quaternary ammonium group claim 1 , based on the total ...

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21-05-2020 дата публикации

SOLUTION POLYMERIZATION IN ISOPROPANOL AND WATER

Номер: US20200157263A1
Принадлежит:

A method for solution polymerization. The method comprises polymerizing in a solvent a monomer mixture comprising: (a) 5 to 95 wt % of a C-Cethylenically unsaturated dicarboxylic acid; and (b) 5 to 95 wt % of vinyl acetate; wherein the solvent comprises 51 to 88 wt % isopropanol and 12 to 49 wt % water. 1. A method for solution polymerization; said method comprising polymerizing in a solvent a monomer mixture comprising: (a) 5 to 75 wt % of a C-Cethylenically unsaturated dicarboxylic acid; (b) 10 to 60 wt % of vinyl acetate; and (c) 10 to 50 wt % (meth)acrylic acid; wherein the solvent comprises 51 to 88 wt % isopropanol and 12 to 49 wt % water.2. The method of in which the monomer mixture comprises:(i) 10 to 45 wt % itaconic acid, (ii) 20 to 50 wt % of vinyl acetate; and (iii) 15 to 45 wt % acrylic acid.3. The method of in which the solvent comprises 60 to 85 wt % isopropanol and 15 to 40 wt % water4. The method of in which the polymer has Mfrom 2 claim 3 ,000 to 70 claim 3 ,000.5. The method of in which an isopropanol-water azeotrope is distilled and recycled to a polymerization reaction.6. A method for solution polymerization; said method comprising polymerizing in a solvent a monomer mixture comprising: (a) 5 to 95 wt % of a C-Cethylenically unsaturated dicarboxylic acid; and (b) 5 to 95 wt % of vinyl acetate; wherein the solvent comprises 51 to 88 wt % isopropanol and 12 to 49 wt % water.7. The method of in which the polymer comprises polymerized units of:(i) 20 to 58 wt % itaconic acid and (ii) 42 to 80 wt % of vinyl acetate.8. The method of in which the solvent comprises 60 to 85 wt % isopropanol and 15 to 40 wt % water.9. The method of in which the polymer has Mfrom 2 claim 8 ,000 to 70 claim 8 ,000.10. The method of in which an isopropanol-water azeotrope is distilled and recycled to a polymerization reaction. This invention relates generally to a method for polymerization of vinyl and acrylic monomers in solution.Solution polymerization of vinyl and ...

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21-05-2020 дата публикации

USE OF VINYL ACETATE-COPOLYMERS AS A SHRINKAGE-REDUCING ADDITIVE IN COLD-CURING SYSTEMS

Номер: US20200157341A1
Принадлежит:

The invention relates to the use of vinyl acetate-copolymers as a shrinkage-reducing additive (low profile additive) in cold-curing systems for producing composite materials, characterized in that vinyl acetate-copolyerisate of 40 to 95 wt % vinyl acetate and 5 to 60 wt % of one or more co-monomers from the group containing vinyl esters of unbranched or branched carboxylic acids having 3 to 20 C-atoms and methacrylic acid esters and acrylic acid esters of unbranched or branched alcohols having 2 to 15 C-atoms are used, wherein the specifications in wt % relate to the total weight of the co-monomers and add up to 100 wt %. 1. A method for producing a cold-curing systems which are cured at a temperature of <60° C. for producing composite materials , comprising: a) at least one crosslinkable, unsaturated polyester resin or vinyl ester resin,', 'b) at least one monomer with ethylenically unsaturated group,', 'c) at least one initiator from the group of the peroxides or hydroperoxides,', 'd) at least one accelerator from the group of the cobalt salts,', 'e) optionally fiber material, and', 'f) optionally mineral fillers;, 'mixing constituents, the constituents comprisingincorporating a shrinkage-reducing admixture, the shrinkage reducing admixture comprising vinyl acetate copolymers of 40 to 95 wt % vinyl acetate and 5 to 60 wt % one or more comonomers comprising vinyl esters of unbranched or branched carboxylic acids having 3 to 20 carbon atoms and methacrylic esters and acrylic esters of unbranched or branched alcohols having 2 to 15 carbon atoms are used, the figures in wt % being based on the total weight of the comonomers and adding up to 100 wt %.2. The method of claim 1 , wherein copolymers of 55 to 95 wt % vinyl acetate and 5 to 45 wt % comonomers are used claim 1 , based on the total weight of the monomers.3. The method of claim 1 , wherein a vinyl acetate copolymer of vinyl acetate and one or more comonomers from the group consisting of vinyl laurate and vinyl ...

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21-05-2020 дата публикации

CONTACT LENS WITH PHOSPHORYLCHOLINE-MODIFIED POLYVINYLALCOHOLS THEREIN

Номер: US20200158913A1
Принадлежит:

The invention is generally related to a soft contact lens which comprises a hydrogel lens body and a coating thereon and to a method for producing the same. The hydrogel lens body is composed of a crosslinked polymeric material comprising repeating units of at least one arylborono-containing vinylic monomer having a boronic acid group, and the coating comprises a layer of a phosphorylcholine-containing polymer which comprises (a) repeating units of vinyl alcohol, and (b) repeating units of 6-membered acetal ring substituted with a phosphorylcholine-containing group. The coating is covalently-attached to the hydrogel lens body through cyclic boronic ester linkages each formed between one of the boronic acid groups of the crosslinked polymeric material and one of the 1,2-diol and 1,3-diol moieties of the phosphorylcholine-containing polymer. 1. A soft contact lens , comprising: a lens bulk material which is a crosslinked polymeric material having a polymer matrix; and at least one non-polymerizable preformed phosphorylcholine-containing polymer which each comprises (a) first repeating units of vinyl alcohol and/or vinyl acetate and (b) second repeating units of 6-membered acetal ring substituted with a phosphorylcholine-containing group , wherein the non-polymerizable preformed PC-containing polymer is not covalently attached to the crosslinked polymeric material and is distributed within the polymer matrix.3. The soft contact lens of claim 2 , wherein the soft contact lens comprises at least two non-polymerizable preformed phosphorylcholine-containing polymers claim 2 , wherein one of the two non-polymerizable preformed PC-containing polymers has a number-average molecular weight of from 10 claim 2 ,000 to 100 claim 2 ,000 Daltons while the other has a number-average molecular weight of from 200 claim 2 ,000 to 2 claim 2 ,000 claim 2 ,000.4. The soft contact lens of claim 3 , wherein the weight proportion of the two non-polymerizable preformed phosphorylcholine- ...

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22-06-2017 дата публикации

SOIL EROSION PREVENTION AGENT

Номер: US20170174988A1
Принадлежит: Denka Company Limited

Provided is a soil erosion prevention agent which can suppress the amount of resin used without decreasing soil erosion prevention effect. A soil erosion prevention agent containing a water-borne resin emulsion, wherein: the emulsion has a solid content of 30 to 70 mass %; and the emulsion has a viscosity of 50 mPa·s or lower measured at 30° C. when a water content of the emulsion is adjusted so that the solid content of the emulsion is 40 mass %, is provided. 1. A soil erosion prevention agent comprising: the emulsion has a solid content of 30 to 70 mass %; and', 'the emulsion has a viscosity of 50 mPa·s or lower measured at 30° C. when a water content of the emulsion is adjusted so that the solid content of the emulsion is 40 mass %., 'a water-borne resin emulsion, wherein2. The soil erosion prevention agent of claim 1 , wherein the emulsion is an emulsion of a resin containing a structure unit derived from vinyl acetate.3. The soil erosion prevention agent of wherein the emulsion is an ethylene-vinyl acetate copolymer emulsion.4. The soil erosion prevention agent of claim 1 , wherein the solid content is 35 to 55 mass %.5. The soil erosion prevention agent of claim 1 , wherein the emulsion has a viscosity of 1000 mPa·s or lower measured at 30° C. The present invention relates to a soil erosion prevention agent suitably used to prevent soil erosion from a slope surface and the like formed by filled soil and cut soil seen in construction of developed land, road, dam and the like.At the construction site of developed land, road, dam and the like, soil cutting and soil filling are performed to form a slope surface. When such slope surface is left as it is, the slope surface gets eroded by rain and weathering, thereby causing accidents such as landslide and rock fall. Accordingly, in order to prevent erosion of soil, Patent Literature 1 discloses formulating drying inhibitor for soil comprising water-swelling and water-absorbing resin, surfactant, and synthetic resin ...

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22-06-2017 дата публикации

BINDER FOR PAPER COATING COMPOSITIONS

Номер: US20170175335A1
Принадлежит: Wacker Chemical Corporation

The invention provides a polymer dispersion for paper coating compositions, obtainable by means of a radically initiated, aqueous emulsion polymerization in the presence of one or more emulsifiers and optionally protective colloids, of a) 50 to 93% by weight of at least one vinyl ester of an alkanoic acid with 1 to 12 C-atoms, whose homopolymer has a glass transition temperature Tg of below about 350° K., b) 2 to 30% by weight of ethylene, c) 5 to 20% by weight of at least one monomer whose homopolymer has a glass transition temperature Tg of at least about 350° K., d) 0.1 to 2% by weight of ethylenically unsaturated silane monomers, e) 0 to 5% by weight of further ethylenically unsaturated monomers that are copolymerizable with vinyl acetate and ethylene, based in each case on the total weight of the monomers used for the polymerization, with the data in % by weight summing in each case to 100% by weight. 2. The polymer dispersion according to claim 1 , wherein a) comprises one or more vinyl esters selected from the group consisting of vinyl propionate claim 1 , vinyl valerate claim 1 , vinyl 2-ethylhexanoate claim 1 , vinyl laurate and vinyl versatates.3. The polymer dispersion according to or claim 1 , wherein a) comprises vinyl acetate.4. The polymer dispersion according to any preceding claim claim 1 , wherein c) comprises one or more monomers selected from the group consisting of vinyl esters claim 1 , acrylic acid esters claim 1 , methacrylic acid esters claim 1 , vinyl chloride and styrene.5. The polymer dispersion according to any preceding claim claim 1 , wherein d) comprises one or more monomers selected from the group consisting of 3-acryloyl- and 3-methacryloyloxypropyltri-(alkoxy)silanes claim 1 , vinylalkyldialkoxysilanes and vinyltrialkoxy-silanes claim 1 , wherein the alkoxy groups comprise Cto Calkoxy groups and the alkyl radicals are Cto Calkyl radicals.6. A paper coating composition comprising pigments and the polymer dispersion according to any ...

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05-07-2018 дата публикации

MICRO-NANO MEDICAL ADSORBENT RESIN POWDER MATERIAL

Номер: US20180185492A1
Автор: Yu Jie
Принадлежит:

A micro-nano medical adsorbent resin powder material is a high-molecular polymer including carbon ions, hydrogen ions, and oxygen ions. The powder material includes a molecular structure includes a benzene ring and a hydroxyl group, and the polymer includes at least two or more molecules; an overall particle size is in a range of 0.01-50 micrometer (um), preferably 0.01-1.5 micrometer (10-1500 nm). 1. A micro-nano medical adsorbent resin powder material , wherein the powder material is a high-molecular-weight polymer including carbon ions , hydrogen ions , and oxygen ions; a molecular structure of the high-molecular-weight polymer includes a benzene ring and a hydroxyl group , and the high-molecular-weight polymer includes at least two or more molecules; an overall particle size of the high-molecular-weight polymer is in a range of 0.01-50 micrometer (um).2. The micro-nano medical adsorbent resin powder material according to claim 1 , wherein the high-molecular-weight polymer is a polymer including vinyl acetate and divinyl-benzene.3. The micro-nano medical adsorbent resin powder material according to claim 1 , wherein the high-molecular-weight polymer is a polymer including styrene and divinyl-benzene.4. The micro-nano medical adsorbent resin powder material according to claim 2 , wherein a monosaccharide residue or carbohydrate chains is bound to a binding site of a carbon skeleton and/or a branched-chain of the high-molecular-weight polymer to form a glycosylated polymer.5. The micro-nano medical adsorbent resin powder material according to claim 2 , wherein transition-metal ions are embedded in a carbon skeleton of the high-molecular-weight polymer.6. The micro-nano medical adsorbent resin powder material according to claim 2 , wherein transition-metal ions are embedded in a carbon skeleton of the high-molecular-weight polymer; and the metal element is iron.7. (canceled)8. The micro-nano medical adsorbent resin powder material according to claim 1 , wherein the ...

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07-07-2016 дата публикации

Dispersion stabilizer for suspension polymerization and method for producing vinyl resin

Номер: US20160194416A1
Принадлежит: Kuraray Co Ltd

The present invention provides a highly water-soluble and easy-to-handle dispersion stabilizer for suspension polymerization that meets the following requirements: even if the amount of the dispersion stabilizer for suspension polymerization used for suspension polymerization of a vinyl compound is small, the resulting vinyl resin has high plasticizer absorptivity and is easy to work with; it is easy to remove residual monomer components from the resulting vinyl resin; and the resulting vinyl resin contains fewer coarse particles. The present invention relates to a dispersion stabilizer for suspension polymerization of a vinyl compound. This dispersion stabilizer contains a vinyl alcohol polymer (A) having a degree of saponification of 20 mol % or more and less than 65 mol %, a viscosity average degree of polymerization (P) of 100 or more and less than 600, an aliphatic hydrocarbon group having 6 to 18 carbon atoms at its terminal, and an anionic group in its side chain.

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12-07-2018 дата публикации

Use of a Sulphur or Phosphorous-Containing Polymer as a Processing Aid in a Polyvinyl Chloride Polymer Composition

Номер: US20180194882A1
Принадлежит: Synthomer UK Ltd

The present invention relates to use of a sulphur or phosphorous-containing polymer as a processing aid in a polyvinyl chloride polymer composition.

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11-06-2020 дата публикации

ELECTROLYTE COMPOSITION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Номер: US20200185771A1
Принадлежит: LG CHEM, LTD.

The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery and a lithium secondary battery including the same, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPFas a first lithium salt, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, wherein the polymer or oligomer containing the unit represented by Formula 1 is included in an amount of 0.6 wt % to 15 wt % based on a total weight of the thermosetting electrolyte composition for a lithium secondary battery, and a lithium secondary battery including the same. 4. The thermosetting electrolyte composition for a lithium secondary battery of claim 2 , wherein a ratio of k:(m+n) is in a range of 70:30 to 99:1.5. The thermosetting electrolyte composition for a lithium secondary battery of claim 2 , wherein a molar ratio of k:(m+n) is in a range of 75:25 to 90:10.8. The thermosetting electrolyte composition for a lithium secondary battery of claim 7 , wherein a ratio of k1:(m1+n1) is in a range of 70:30 to 99:1.9. The thermosetting electrolyte composition for a lithium secondary battery of claim 7 , wherein a ratio of k1:(m1+n1) is in a range of 75:25 to 90:10.10. The thermosetting electrolyte composition for a lithium secondary battery of claim 2 , wherein the polymer or oligomer containing the unit represented by Formula 1 is included in an amount of 1 wt % to 15 wt % based on the total weight of the thermosetting electrolyte composition for a lithium secondary battery.11. The thermosetting electrolyte composition for a lithium secondary battery of claim 1 , further comprising a second lithium salt that is not LiPF.12. The thermosetting electrolyte composition for a lithium secondary battery of claim 11 , wherein the second lithium salt comprises Li as a cation claim 11 , and comprises at least one anion selected from the group consisting of F claim 11 , Cl claim ...

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27-06-2019 дата публикации

SUPPORT MATERIAL FOR LAMINATE SHAPING, PRODUCT LAMINATE-SHAPED BY USING THE SAME, AND LAMINATE-SHAPED PRODUCT PRODUCTION METHOD

Номер: US20190193387A1

A laminate shaping support material is provided which includes one of: a resin composition containing a polyvinyl alcohol resin having a primary hydroxyl group at its side chain, and having a heat of fusion of 10 to 30 J/g at its melting point (Embodiment (X)); and a resin composition containing a polyvinyl alcohol resin, and a block copolymer including a polymer block of an aromatic vinyl compound, at least one of a polymer block of a conjugated diene compound and a block of a hydrogenated conjugated diene compound, and a functional group reactive with a hydroxyl group (Embodiment (Y)). Therefore, the laminate shaping support material according to Embodiment (X), for example, is excellent in shape stability and adhesiveness to a model material. The laminate shaping support material according to Embodiment (Y) is excellent in peelability and forming stability. 1. A laminate shaping support material comprising a resin composition comprisinga polyvinyl alcohol resin, anda block copolymer including a polymer block of an aromatic vinyl compound, at least one of a polymer block of a conjugated diene compound and a block of a hydrogenated conjugated diene compound, and a functional group reactive with a hydroxyl group.2. The laminate shaping support material according to claim 1 , wherein the block copolymer has an acid value of 0.5 to 20 mg CHONa/g.3. A laminate comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the laminate-shaping support material according to and'}a model material,wherein a layer of the laminate-shaping support material and a layer of the model material are alternately laid one on another in a fluid state.4. A laminate-shaped product production method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'alternately laying a layer of the laminate-shaping support material according to and a layer of a model material one on another in a fluid state;'}solidifying the support material and the model material; andremoving the support ...

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27-06-2019 дата публикации

PROCESS FOR MAKING HIGH PRESSURE FREE RADICAL ETHYLENE COPOLYMERS

Номер: US20190194361A1
Принадлежит: Dow Global Technologies LLC

A high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene and at least one comonomer, using a reactor system comprising a reactor configuration, and the following: (A) at least two reaction zones, a zone (reaction zone 1) and an ith zone (reaction zone i where i≥2), (B) at least two ethylene-based feed streams, each comprising a percentage of the total make-up ethylene fed to the polymerization process, and wherein a first stream is sent to reaction zone 1 and a second stream is sent to reaction zone i; (C) a control system to control the percentage of the total make-up ethylene in the stream sent to reaction zone 1, and the percentage of the total make-up ethylene in the stream sent to reaction zone i, and wherein the ratio (Q) of the molar concentration of the at least one comonomer fed to the first reaction zone, to the molar concentration of comonomer in the sum of all ethylene-based feeds to the reactor configuration, meets the following Equation 1: 0.23 ln(r1)−2.16≤Q≤−0.25 ln(r1)+2.15 (Equation 1); and wherein the comonomer has a reactivity ratio (r1) as follow: 0.3≤r1≤5.0, and a boiling point (1 atm)≤150° C. 1. A high pressure polymerization process to form an ethylene-based polymer , the process comprising at least the following step:polymerizing a reaction mixture comprising ethylene and at least one comonomer, using a reactor system comprising a reactor configuration, and the following:(A) at least two reaction zones, a first reaction zone (reaction zone 1) and an ith reaction zone (reaction zone i where i≥2),(B) at least two ethylene-based feed streams, each feed stream comprising a percentage of the total make-up ethylene fed to the polymerization process, and wherein a first ethylene-based feed stream is sent to reaction zone 1 and a second ethylene-based feed stream is sent to reaction zone i;(C) a control system to control the ...

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29-07-2021 дата публикации

Method for Producing Ethylene-Vinyl Acetate Copolymer

Номер: US20210230314A1
Принадлежит: Kuraray Co Ltd

A method of continuously producing an ethylene-vinyl acetate copolymer in a polymerization vessel containing a reaction liquid containing ethylene, vinyl acetate, a polymerization initiator and methanol, the polymerization vessel being connected via piping to a heat exchanger circulating a coolant, the method includes the steps of: supplying ethylene, the polymerization initiator and methanol to the polymerization vessel; introducing pressurized gas containing ethylene present in a gas phase portion of the polymerization vessel into the heat exchanger; supplying vinyl acetate cooled to between −50° C. and 23° C. to an upper portion of the heat exchanger; flowing vinyl acetate down in the heat exchanger while absorbing ethylene; letting vinyl acetate dissolving ethylene out of a bottom portion of the heat exchanger and adding to the reaction liquid in the polymerization vessel; and taking the reaction liquid out of the polymerization vessel. This provides a method of efficiently removing heat during polymerization of an ethylene-vinyl acetate copolymer.

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29-07-2021 дата публикации

POLYMER DISPERSIONS, THEIR PREPARATION AND USE

Номер: US20210230315A1
Принадлежит:

A multistage emulsion polymerization process comprises polymerizing a first monomer composition comprising from 50 to 95 weight percent of vinyl acetate, from 5 to 40 weight percent of at least one vinyl ester of a Cto Cunsaturated carboxylic acid, and optionally up to 40 weight percent of ethylene, all based on the total weight of monomers in the first monomer composition, to produce a first stage polymer. A second monomer composition comprising 40 to 89.95 weight percent of at least one ester of methacrylic acid or a vinyl aromatic monomer, 10 to 59.95 weight percent of at least one ester of acrylic acid, and from 0.05 to 10 weight percent of at least one comonomer with acid functionality, based on the total weight of monomers in the second monomer composition, is then polymerized in the presence of the first stage polymer to produce a second stage polymer. 1. An emulsion polymerization process comprising:{'sub': 5', '18, '(i) polymerizing, in a first stage, a first monomer composition comprising from 50 weight percent to 95 weight percent of vinyl acetate, from 5 weight percent to 40 weight percent of at least one vinyl ester of a Cto Cunsaturated carboxylic acid, optionally up to 40 weight percent of ethylene, optionally up to 40 weight percent of at least one alkyl ester of acrylic acid, and optionally up to 20 weight percent of one or more further monomers copolymerizable therewith, all based on the total weight of monomers in the first monomer composition, to produce a first stage polymer; and'}(ii) polymerizing, in a second stage and in the presence of said first stage polymer, a second monomer composition comprising 40 weight percent to 89.95 weight percent of at least one alkyl ester of methacrylic acid or a vinyl aromatic monomer, 10 weight percent to 59.95 weight percent of at least one alkyl ester of acrylic acid, and from 0.05 weight percent to 10 weight percent of at least one comonomer with acid functionality, based on the total weight of monomers in ...

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20-07-2017 дата публикации

REACTIVE MONOMERS AS COMONOMERS FOR THE PRODUCTION OF POLYMERS

Номер: US20170204209A1
Принадлежит:

The present invention relates to the use of reactive monomers as plasticizers in copolymers. The invention further relates to copolymers obtainable by using the reactive monomers. The present invention moreover relates to processes for the lowering of the glass transition temperature of copolymers with use of the reactive monomers. 1. (canceled)2. The method according to claim 13 , where R claim 13 , R claim 13 , and Rare H.3. The method according to claim 13 , where Ris —CH—CH—CH—CH—.4. The method according to claim 13 , where Ris H and Ris —CH.5. The method according to claim 13 , where Ris H.6. The method according to claim 13 , where X is O.7. The method according to claim 13 , where the copolymers are produced in a free-radical emulsion polymerization reaction.8. The method according to claim 13 , where the OH number of the compound of formula (I) is from 2 mg KOH/g to 225 mg KOH/g.9. The method according to claim 13 , where a polydispersity of the compound of formula (I) is from 1.0 to 2.0.10. The method according to claim 13 , where the compound is copolymerized with one or more olefinically unsaturated compound.11. The method according to claim 10 , where the one or more olefinically unsaturated compound is selected from the group consisting of vinylaromatic compounds claim 10 , ethylenically unsaturated carboxylic acids having from 3 to 10 carbon atoms claim 10 , C-C-alkyl esters of ethylenically unsaturated carboxylic acids having from 3 to 10 carbon atoms claim 10 , vinyl acetate claim 10 , ethene claim 10 , propene claim 10 , 1 claim 10 ,3-butadiene claim 10 , isoprene claim 10 , α-olefins having from 10 to 250 carbon atoms claim 10 ,in each case in pure form or as isomer mixture,{'sub': 4', '4, 'SO-containing monomers, and PO-containing monomers.'}12. The method according to claim 13 , where the glass transition temperature of the copolymer is lowered by from 5 to 70 K.15. A copolymer produced according to the process of .16. The process according to ...

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29-07-2021 дата публикации

Vinyl Alcohol Based Copolymer, Method for Preparing the Same and Gas Barrier Film Comprising the Same

Номер: US20210230417A1
Принадлежит: LG CHEM, LTD.

In the present disclosure, there are provided a vinyl alcohol-based copolymer including a first repeating unit derived from an olefin, a second repeating unit containing a hydroxyl group, and a third repeating unit containing a cyanoalkyloxy group formed by a reaction of the repeating unit containing a hydroxyl group and an unsaturated nitrile-based compound, wherein the third repeating unit is included in an amount of 2 mol % or more and less than 10 mol % with respect to 100 mol % of a total amount of the second repeating unit and the third repeating unit; a method for preparing the same; and a gas barrier film including the same. The vinyl alcohol-based copolymer has excellent moisture stability, thereby exhibiting excellent gas barrier properties even in a humid environment. 2. The vinyl alcohol-based copolymer of claim 1 , wherein the third repeating unit is comprised in an amount of 2 to 9 mol % with respect to 100 mol % of a total amount of the second repeating unit and the third repeating unit.3. The vinyl alcohol-based copolymer of claim 1 , wherein in Chemical Formula 2 claim 1 , L is ethylene claim 1 , 1-methylethylene claim 1 , or n-propylene.5. The vinyl alcohol-based copolymer of claim 1 , wherein the first repeating unit is included in an amount of 10 to 70 mol % with respect to 100 mol % of a total amount of repeating units in the copolymer.6. The vinyl alcohol-based copolymer of claim 1 , wherein the first repeating unit is a repeating unit derived from ethylene.7. The vinyl alcohol-based copolymer of claim 1 , wherein the second repeating unit is comprised in an amount of 25 to 85 mol % with respect to 100 mol % of a total amount of repeating units in the copolymer.8. The vinyl alcohol-based copolymer of claim 1 , wherein the copolymer further comprises a repeating unit derived from a vinyl carboxylate-based compound.9. The vinyl alcohol-based copolymer of claim 8 , wherein the vinyl carboxylate-based compound is vinyl acetate.10. A method for ...

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09-10-2014 дата публикации

Polymerization Process to Make Low Density Polyethylene

Номер: US20140303309A1
Принадлежит: Dow Global Technologies LLC

A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: 112-. (canceled)13. An ethylene-based polymer comprising the following properties: (1) a melt elasticity , in centiNewtons , of less than , or equal to , (8.1×(melt index)) , a melt index greater than 3 g/10 min , and a density from 0.926 to 0.935 g/cm.14. The ethylene-based polymer of in which the melt elasticity claim 13 , in centiNewtons claim 13 , is less than claim 13 , or equal to claim 13 , (9.3×(melt index)).1517-. (canceled)18. The ethylene-based polymer of as a polyethylene homopolymer.19. The ethylene-based polymer of as an ethylene-based interpolymer.20. The ethylene-based polymer of as a low density polyethylene (LDPE).21. The ethylene-based polymer of as a high pressure copolymer selected from the group consisting of ethylene vinyl acetate (EVA) claim 13 , ethylene ethyl acrylate (EEA) claim 13 , and ethylene acrylic acid (EAA).22. A polymeric blend comprising the ethylene-based polymer of .23. A composition comprising the ethylene-based polymer of .24. The composition of comprising two or more ethylene-based polymers of .25. An article comprising at least one component formed from the composition of .26. A coating comprising at least one component formed from the composition of .27. A film comprising at least one component formed from the composition of . This invention relates to ethylene-based polymers, particularly low density polyethylene (LDPE), and polymerization improvements to make LDPE. Notably, the polymerization process involves autoclave reactor(s), preferably operated sequentially with a tubular reactor(s).There are many types of polyethylene made and sold today. One type in particular is made by various suppliers and sold in large quantities. This polyethylene is called high pressure free radical polyethylene (usually called LDPE) and is usually made using a tubular reactor or an autoclave reactor or sometimes a combination. Sometimes polymer ...

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03-08-2017 дата публикации

Alkoxylated Unsaturated Fatty Acids and Uses Thereof

Номер: US20170218107A1
Принадлежит: ELEVANCE RENEWABLE SCIENCES, INC.

Alkoxylated fatty acids are disclosed herein, as well as methods of making and using such compounds. In some embodiments, the alkoxylated fatty acids are formed from monomers derived from natural oils. In some embodiments, the alkoxylated fatty acids are used as surfactants for making synthetic latex by emulsion polymerization. In some other embodiments, the alkoxylated fatty acids are used as surfactants for making synthetic rubber, such as styrene-butadiene rubber. In some other embodiments, the alkoxylated fatty acids are used as surfactants in a composition for treatment of gas or oil wells, for cleaning applications, for use in various laundry-related applications, for use in personal care compositions, or for use as solvents for coating applications, such as reactive and non-reactive waterborne coating applications. 116-. (canceled)18. (canceled)19. The composition of claim 17 , wherein the one or more monomers comprise monomers for forming a synthetic latex.20. The composition of claim 18 , wherein the one or more monomers comprise free-radical-polymerizable monomers.21. The composition of claim 20 , wherein the one or more monomers comprise monomers selected from the group consisting of vinyl compounds claim 20 , acrylic acid claim 20 , acrylates claim 20 , alkenes claim 20 , halo-substituted alkenes claim 20 , nitrile-substituted alkenes claim 20 , styrene claim 20 , and mixtures thereof.22. The composition of claim 17 , further comprising a free radical initiator.23. The composition of claim 17 , wherein the composition is an emulsion having a dispersed phase and a continuous phase.24. The composition of claim 23 , wherein the continuous phase comprises water.25. The composition of claim 24 , wherein the dispersed phase comprises at least a portion of the one or more monomers.26. The composition of claim 17 , further comprising one or more additional comonomers.27. The composition of claim 17 , further comprising one or more surfactants.28. The composition ...

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09-08-2018 дата публикации

SANITARY BARRIER FILMS

Номер: US20180221535A1
Принадлежит:

A polymer film is provided that adheres to the outer epidermal surface of human skin, for instance, and is suitable to be worn as a protective covering in the general nature of a glove, bandage, or wound closure, for instance. The film is durable and may be peeled off in more or less one piece without damaging or irritating the skin. The film is also discreet insofar as it is substantially clear and colorless, as well as thin. Thus, the film may go unnoticed by casual observers. 4. The copolymer film of claim 3 , further comprising a rheological modifier present at a percent by weight above trace up to 12 wt % and effecting a viscosity of a precursor emulsion of the copolymer film between 300 centipoise and 4000 centipoise.5. The film of claim 4 , wherein the emulsion comprises between 25 wt % and 60 wt % solids content.6. The film of having a thickness between 1 mils and 40 mils.7. The film of claim 1 , having a hardening time up to 15 minutes±3 minutes.8. The film of claim 7 , having a hardening time up to 10 seconds±3 seconds.9. The film of claim 1 , having a tan(δ) between 0.90 and 1.20 at 37° C. in a linear viscoelastic strain regime of the copolymer.10. The film of claim 1 , having a peel adhesion strength between 15 and 25 N/m.14. The copolymer film of claim 13 , further comprising a rheological modifier present at a percent by weight above trace up to 9 wt % and effecting a viscosity of a precursor emulsion of the copolymer film between 500 centipoise and 3500 centipoise.15. The film of claim 14 , wherein the emulsion comprises between 30 wt % and 50 wt % solids content.16. The film of having a thickness between 3 mil and 25 mils.17. The film of claim 11 , having a hardening time up to 1 minute±20 seconds.18110. The film of claim claim 11 , having a tan(6) between 0.9 and 1.0 at 37° C. in a linear viscoelastic strain regime of the copolymer.19. The film of claim 11 , having a peel adhesion strength between 15 and 25 N/m.20. A copolymer film having:a tan(δ) ...

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23-10-2014 дата публикации

LOW DENSITY ETHYLENE-BASED POLYMERS WITH BROAD MOLECULAR WEIGHT DISTRIBUTIONS AND LOW EXTRACTABLES

Номер: US20140316094A1
Принадлежит: Dow Global Technologies LLC

The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg/min; b) a Mw(abs) versus 12 relationship: Mw(abs)C+D(I2), where C=127.5 Pa, and D=−1.25 Pa/(dg/min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg/min; b) a G′ versus 12 relationship: G′>C+D(I2), where C=127.5 Pa, and D=−1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G′ relationship: Clext. Подробнее

09-08-2018 дата публикации

VINYL ALCOHOL COPOLYMER AND METHOD FOR PRODUCING SAME

Номер: US20180223023A1
Принадлежит: KURARAY CO., LTD.

Provided is a vinyl alcohol-based copolymer, obtained by saponifying a copolymer of vinyl acetate and a polyfunctional monomer, wherein the polyfunctional monomer contains two or more ethylenic double bonds in its molecule, the vinyl alcohol-based copolymer has a side chain containing an ethylenic double bond and a molar ratio (d) of the ethylenic double bond to a total of vinyl alcohol units and vinyl acetate units is from 0.05/100 to 2/100, and the vinyl alcohol-based copolymer is water soluble. 1. A method for producing a vinyl polymer , the method comprising:polymerizing at least one vinyl-based monomer in the presence of a dispersion stabilizer,wherein the dispersion stabilizer is at least one vinyl alcohol-based copolymer, obtained by copolymerizing vinyl acetate and at least one polyfunctional monomer to obtain at least one vinyl ester-based copolymer and saponifying the at least one vinyl ester-based copolymer, thereby obtaining the at least one vinyl alcohol-based copolymer,wherein:the at least one polyfunctional monomer comprises two or more ethylenic double bonds in a molecule of the at least one polyfunctional monomer,{'b': '1', 'the at least one vinyl alcohol-based copolymer comprises at least one side chain comprising at least one ethylenic double bond and has a molar ratio (d) of the at least one ethylenic double bond to a total of vinyl alcohol units and vinyl acetate units of 0.05/100 to 2/100, and p the at least one vinyl alcohol-based copolymer is water soluble.'}2. The method of claim 1 , wherein the at least one side chain comprises at least one vinyl ether group.3. The method of claim 1 , wherein the at least one side chain comprises at least one allyl group.4. The method of claim 1 , wherein the copolymerization is carried out at a molar ratio (p) of the at least one polyfunctional monomer to the vinyl acetate of from 0.1/100 to 5/100.5. The method of claim 4 , wherein a ratio (d/p) of the molar ratio (d) to the molar ratio (p) is from 0.2 to ...

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10-08-2017 дата публикации

Vinyl alcohol polymer and use thereof

Номер: US20170226247A1
Принадлежит: Kuraray Co Ltd

There is provided a vinyl alcohol-based polymer having an ethylenic double bond with a saponification degree of 70 mol % or more, wherein the vinyl alcohol-based polymer is water-soluble; a molar ratio of the ethylenic double bond to the total of vinyl alcohol units and vinyl acetate units is 0.05/100 to 2/100; and a limiting viscosity [η] and a weight-average molecular weight Mw of a vinyl ester-based polymer which is produced by esterifying the vinyl alcohol-based polymer satisfy the following formulas (1) and (2). 4.7≦log Mw 6.3   (1) 0.60<(log [η]+3.75)/log Mw<0.69   (2)

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27-08-2015 дата публикации

METHOD FOR PRODUCING FLUORINE-CONTAINING COPOLYMER

Номер: US20150240012A1
Принадлежит: DAIKIN INDUSTRIES, LTD.,

The present invention provides a method for producing a copolymer containing a perhaloolefin and vinyl acetate by a novel emulsion polymerization method. The present invention relates to a method for producing a perhaloolefin-vinyl acetate copolymer by emulsion polymerization of at least a perhaloolefin having two carbon atoms and vinyl acetate in the presence of a hydrocarbon emulsifier or in the absence of an emulsifier, provided that the hydrocarbon emulsifier excludes a compound (1) represented by the formula (1): 2. The production method according to claim 1 ,wherein the emulsion polymerization is carried out in the presence of the hydrocarbon emulsifier.3. The production method according to claim 2 ,wherein the hydrocarbon emulsifier is an anionic emulsifier.4. The production method according to claim 2 ,wherein the hydrocarbon emulsifier contains an alkyl benzene sulfonate salt, higher fatty acid salt, alkyl sulfate ester salt, alkyl sulfonate salt, or alkyl ether sulfate salt.5. The production method according to claim 2 ,wherein the hydrocarbon emulsifier contains sodium dodecylsulfate, sodium dodecylsulfonate, sodium decylsulfate, sodium decylsulfonate, sodium tetradecylsulfate, or sodium tetradecanesulfonate.6. The production method according to claim 1 ,wherein an unfluorinated monomer is further copolymerized in addition to the perhaloolefin having two carbon atoms and vinyl acetate.7. The production method according to claim 6 ,wherein the unfluorinated monomer is at least one selected from the group consisting of olefins, vinyl ethers, and vinyl esters.8. The production method according to claim 7 ,wherein the unfluorinated monomer contains a monomer containing a crosslinkable group and a monomer not containing a crosslinkable group.9. The production method according to claim 8 ,wherein the monomer containing a crosslinkable group is a hydroxyl group-containing vinyl monomer or an unsaturated carboxylic acid. The present invention relates to a method ...

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17-08-2017 дата публикации

POLYFUNCTIONAL POLYMERS BASED ON PHOSPHONATE UNITS AND AMINE UNITS

Номер: US20170233685A1
Принадлежит:

The invention relates to polyfunctional polymers suitable in particular for the treatment of metal surfaces (metal finishing) and comprising: monomer units u1 bearing phosphonic acid functions; monomer units u2 bearing amine functions; and optionally monomer units u3 bearing alcohol units —OH. 1. A polyfunctional polymer comprising:{'sub': '2', 'monomer units u1 bearing phosphonic acid functions —P(═O)(OH)in acid form or, totally or partly, in deprotonated form;'}monomer units u2 bearing amine functions, which are optionally totally or partly protonated;optionally, monomer units u3 bearing alcohol functions —OH.2. The polyfunctional polymer as claimed in claim 1 , in which the amine functions of the monomer units u2 comprise primary amines —NHthat are optionally totally or partly protonated in ammonium form NH.3. The polyfunctional polymer as claimed in claim 1 , which comprises monomer units u3 bearing alcohol functions —OH claim 1 , with an amine/alcohol mole ratio corresponding to the total amount of amine functions present in the polymer relative to the total amount of alcohol functions present in the polymer between 1:4 and 4:1.4. The polyfunctional polymer as claimed in claim 1 , which also comprises hydrophobic groups.5. A process for preparing a polyfunctional polymer as claimed in the process comprising: [{'sub': '2', 'ethylenically unsaturated monomers m1 bearing phosphonic acid functions —P(═O)(OH)in their acid form or totally or partly in deprotonated form;'}, 'ethylenically unsaturated monomers m2 bearing protected amine functions;', 'optionally, ethylenically unsaturated monomers m3 bearing protected alcohol functions;, 'a step (E1) of radical polymerization of a mixture comprisingvia which a polymer P1 bearing phosphonate, protected amine and optionally protected alcohol functions is obtained;and thena step (E2) of deprotection of at least some of the protected amine functions, and, where appropriate, the protected alcohol functions, of the polymer P1 ...

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16-07-2020 дата публикации

VINYL ALCOHOL POLYMER AND CEMENT SLURRY COMPRISING SAME

Номер: US20200224076A1
Принадлежит:

Provided is a vinyl alcohol polymer having good fluid loss reducing performance. The vinyl alcohol polymer is a saponified product of a copolymer of a vinyl ester monomer and a multifunctional monomer, and has a degree of saponification of 70 to 95 mol % and a viscosity-average degree of polymerization of 1000 to 10000. 1. A vinyl alcohol polymer , whereinthe vinyl alcohol polymer is a saponified product of a copolymer of a vinyl acetate monomer and a multifunctional monomer, andthe vinyl alcohol polymer has a degree of saponification of 70 to 95 mol % and a viscosity-average degree of polymerization of 1000 to 10000.2. The vinyl alcohol polymer according to claim 1 , wherein the multifunctional monomer includes a carbonyl group or an amide group.3. The vinyl alcohol polymer according to claim 1 , wherein the multifunctional monomer is triallyl isocyanurate.4. The vinyl alcohol polymer according to claim 1 , wherein a structural unit derived from the multifunctional monomer in the vinyl alcohol polymer is 0.001 to 1.0 mol % per 100 mol % of a structural unit derived from the vinyl acetate monomer.5. The vinyl alcohol polymer according to claim 1 , wherein a content of the vinyl alcohol polymer having a particle size of 75 μm or less is 30 mass % or less claim 1 , and a content of the vinyl alcohol polymer having a particle size of 500 μm or more is 10 mass % or less.6. A cement slurry comprising 0.01 to 30% bwoc of the vinyl alcohol polymer according to . This application is a continuation of PCT/JP2019/003766, filed Feb. 4, 2019, which claims priority from JP 2018-029581, filed Feb. 22, 2018, the contents of which applications are incorporated herein by reference in their entireties for all purposesThe present invention relates to an additive for oil well cement, containing a vinyl alcohol polymer. The present invention also relates to a cement slurry using the additive for oil well cement.The oil well cement used in cementing of an oil well, a gas well, a steam ...

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26-08-2021 дата публикации

FLUORINATED COPOLYMER, METHOD FOR PRODUCING IT, WATER AND OIL REPELLENT COMPOSITION, AND ARTICLE

Номер: US20210261705A1
Принадлежит: AGC Inc.

To provide a fluorinated copolymer capable of obtaining an article excellent in water and oil repellency, and friction durability of water and oil repellency. A fluorinated copolymer having units based on the following monomer a and units based on the following monomer b, wherein the proportion of the units based on the monomer a is from 20 to 50 mol % based on the total number of moles of units constituting the fluorinated copolymer, the mass average molecular weight is from 20,000 to 100,000, and the ratio of the half-width Wof the peak of the fluorinated copolymer to the peak width Win a chromatogram obtainable by high performance liquid chromatography measurement is from 0.35 to 0.55: 2. The fluorinated copolymer according to claim 1 , wherein Rin the monomer a is a Cperfluoroalkyl group.3. The fluorinated copolymer according to claim 1 , wherein the monomer a is CH═CH—CFCFCFCFor CH═CH—CFCFCFCFCFCF.4. The fluorinated copolymer according to claim 1 , wherein the proportion of the units based on the monomer b is from 50 to 80 mol % based on the total number of moles of units constituting the fluorinated copolymer.6. The fluorinated copolymer according to claim 5 , wherein R in the monomer b1 is a methyl group.7. The fluorinated copolymer according to claim 1 , wherein the molecular weight distribution (Mw/Mn) is from 1.0 to 4.5.9. The method for producing a fluorinated copolymer according to claim 8 , wherein the proportion of the monomer components in the second mixed liquid (the total content of the first monomer component and the second monomer component) is from 10 to 70 mass %.10. The method for producing a fluorinated copolymer according to claim 8 , wherein the first mixed liquid is subjected to shearing or emulsified under high pressure conditions.12. A method for producing a fluorinated copolymer as defined in claim 1 , which comprises polymerizing claim 1 , in an emulsified liquid containing a monomer component composed of the monomer a and the monomer b ...

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06-11-2014 дата публикации

CONTROLLED RELEASE VEHICLES HAVING DESIRED VOID VOLUME ARCHITECTURES

Номер: US20140328884A1
Принадлежит:

Controlled release vehicles may include a polymeric matrix that comprises the polymeric matrix comprising at least one selected from the group consisting of an ethylene copolymer, an ethyl cellulose, a thermoplastic polyurethane, any partially crosslinked polymer thereof, and any combination thereof and has a desired void space architecture. 1252-. (canceled)253. A controlled release vehicle comprising:{'sup': '3', 'a polymeric matrix having a void space architecture having at least one characteristic selected from the group consisting of a bimodal void diameter distribution, an average void diameter of about 500 microns or less, an average void diameter of about 500 microns or less and a void diameter distribution having a full width at half max of about 50% or less of the average void diameter, an average void distance of about 250 microns or less, an average void distance of about 250 microns or less and a void distance distribution having a full width at half max of about 75% or less of the average void distance, an average pore diameter of about 100 microns or less, an average pore diameter of about 100 microns or less and a pore diameter distribution having a full width at half max of about 50% or less of the average pore diameter, a void space volume of about 95% or less, void density of about 1000 voids per cmor greater, and any combination thereof, the polymeric matrix comprising at least one selected from the group consisting of an ethylene copolymer, an ethyl cellulose, a thermoplastic polyurethane, any partially crosslinked polymer thereof, and any combination thereof.'}254. The controlled release vehicle of further comprising:at least one agent associated with the polymeric matrix.255. The controlled release vehicle of claim 253 , wherein the polymeric matrix comprises ethylene vinyl acetate copolymer.256. The controlled release vehicle of further comprising:a polymeric layer disposed on at least a portion of the surface of the polymeric matrix.257. The ...

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31-08-2017 дата публикации

COMPOUNDS, MONOMERS, AND POLYMERS CONTAINING A CARBONATE LINKAGE

Номер: US20170247317A1
Принадлежит: ISP Investments LLC

The invention provides compounds and monomers having a carbonate linkage. The monomers can be used to form homopolymers or can be coupled with other monomers to provide a wide variety of non-homopolymers. The invention further provides a wide variety of compositions comprising the compounds, monomers, and polymers. In the exemplary structures below, Q, A, R, and n are as described herein. 2. (canceled)4. The compound according to claim 1 , wherein said Q is independently selected from the group consisting of functionalized and unfunctionalized alkylene claim 1 , cycloalkylene claim 1 , alkenylene claim 1 , and arylene groups containing 1-10 carbon atoms claim 1 , wherein any of the groups may be with or without heteroatoms.6. The compound according to claim 1 , wherein each said R is independently selected from the group consisting of hydrogen claim 1 , functionalized and unfunctionalized alkyl claim 1 , cycloalkyl claim 1 , alkenyl claim 1 , and aryl groups containing 1-10 carbon atoms claim 1 , wherein any of the groups may be with or without heteroatoms.7. (canceled) The compound according to or wherein each said E is independently selected from the group consisting of: epoxides claim 1 , (meth)acrylates claim 1 , vinyl oxy claim 1 , and combinations thereof.9. (canceled)10. (canceled)13. A homopolymer polymer polymerized from a compound of .14. A non-homopolymer polymerized from at least: (A) a compound of claim 3 , and (B) a comonomer different from said (A) claim 3 , wherein said non-homopolymer is a random claim 3 , block claim 3 , or alternating non-homopolymer.15. The non-homopolymer of wherein said (B) comonomer is selected from the group consisting of: 4- or 5-substituted-1 claim 14 ,2 claim 14 ,3-triazoles comprising at least one remote polymerizable moiety claim 14 , (meth)acrylamides claim 14 , (meth)acrylates claim 14 , olefins claim 14 , allyls claim 14 , anhydrides claim 14 , cinnamyls claim 14 , fumarates claim 14 , maleates claim 14 , maleimides ...

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08-08-2019 дата публикации

MODIFIED VINYL ALCOHOL-BASED POLYMER, AND DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION

Номер: US20190241682A1
Автор: WATANABE Wataru
Принадлежит:

An object of the present invention is to provide a dispersion stabilizer for suspension polymerization which satisfies various performance requirements for suspension polymerization of a vinyl-based compound such as vinyl chloride. The present invention relates a modified vinyl alcohol-based polymer having at least one monomer unit represented by a following general formula (I) and a modification rate of from 0.01 mol % to 10 mol %: 2. The modified vinyl alcohol-based polymer according to claim 1 , wherein the modified vinyl alcohol-based polymer has a viscosity average polymerization degree of from 300 to 5000.3. The modified vinyl alcohol-based polymer according to claim 1 , wherein the modified vinyl alcohol-based polymer has a saponification degree of from 60 mol % to 99.9 mol %.4. The modified vinyl alcohol-based polymer according to claim 1 , wherein the modified vinyl alcohol-based polymer has a viscosity average polymerization degree of 1000 or less.5. The modified vinyl alcohol-based polymer according to claim 1 , wherein the modified vinyl alcohol-based polymer has a saponification degree of from 65 mol % to 80 mol %.6. A dispersion stabilizer for suspension polymerization claim 1 , comprising the modified vinyl alcohol-based polymer according to .7. A method for producing a vinyl resin claim 6 , comprising: dispersing a vinyl-based compound monomer or a mixture of the vinyl-based compound monomer and a monomer that is copolymerizable with the vinyl compound monomer in water with the dispersion stabilizer for suspension polymerization according to claim 6 , and carrying out suspension polymerization. The present invention relates to a modified vinyl alcohol-based polymer having a polyoxyalkylene group. The present invention also relates to a dispersion stabilizer for suspension polymerization, which is especially suitable for suspension polymerization of a vinyl compound, particularly vinyl chloride.For suspension polymerization of a vinyl chloride monomer ...

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08-08-2019 дата публикации

Methods and Systems for Operating a High Pressure Ethylene Polymerization Unit

Номер: US20190244682A1
Принадлежит: ExxonMobil Chemical Patents Inc

Disclosed are high-pressure polymerization methods and systems using optimized operation sequence logic established at least partly from an analysis of a database containing data of previous operations. The optimized operation sequence logic and collected current process and system data are used to automate the operation of a high pressure ethylene polymerization process and unit.

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15-09-2016 дата публикации

CROSSLINKABLE POLYMER

Номер: US20160264701A1
Принадлежит:

The present invention provides a crosslinkable prepolymer which can be used to produce crosslinked polymeric materials (or contact lenses containing the same) having a high strength and excellent durability. The present invention relates to a polyvinyl alcohol-based prepolymer containing a unit having a pendant 1,2-diol containing group and a unit having a specific crosslinkable functional group, as well as a molding using the same. 2. The polyvinyl alcohol-based prepolymer according to claim 1 , wherein Rin the formula (2) is an olefinically unsaturated claim 1 , electron-withdrawing claim 1 , crosslinkable functional group claim 1 , having up to 25 carbon atoms.4. A crosslinked polymer obtainable by photocrosslinking the polyvinyl alcohol-based prepolymer according to .5. A molding comprising the crosslinked polymer according to .68-. (canceled)10. The crosslinked polymer of claim 4 , wherein Rin the formula (2) is an olefinically unsaturated claim 4 , electron-withdrawing claim 4 , crosslinkable functional group claim 4 , having up to 25 carbon atoms.13. The molding of claim 5 , wherein the molding are contact lenses.14. The molding of claim 5 , wherein Rin the formula (2) is an olefinically unsaturated claim 5 , electron-withdrawing claim 5 , crosslinkable functional group claim 5 , having up to 25 carbon atoms.15. The molding of claim 14 , wherein the molding are contact lenses.17. The molding of claim 16 , wherein the moldings are contact lenses.19. The molding of claim 18 , wherein the molding are contact lenses.21. The process of claim 20 , wherein Rin the formula (2) is an olefinically unsaturated claim 20 , electron-withdrawing claim 20 , crosslinkable functional group claim 20 , having up to 25 carbon atoms.23. The process of claim 20 , wherein the moldings are contact lenses. The present invention relates to a water-soluble polyvinyl alcohol-based prepolymer containing at one monomeric unit having a pendant 1,2-diol containing group and at least one ...

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21-09-2017 дата публикации

Polymer Latex Composition for Fibre Binding

Номер: US20170268164A1
Принадлежит: Synthomer Deutschland GmbH

A polymer latex composition for fibre binding includes: a) 50 to 98 wt.-% based on the total weight of latex particles in the composition of first latex particles having a volume average particle size of 80 to 1000 nm, wherein the first latex particles optionally bear functional groups and if functional groups are present they are selected from functional groups consisting of acid functional groups and salts, amides or anhydrides thereof, silane functional groups, and combinations thereof; b) 2 to 50 wt.-% based on the total weight of latex particles in the composition of second latex particles having a volume average particle size of 5 to 70 nm bearing epoxy functional groups, to the use of that composition for fibre binding, to a fibre structure including the dried residue of that composition and to a method for increasing the strength of a fibre structure.

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11-12-2014 дата публикации

Heat-expandable microspheres, process for producing the same, and application thereof

Номер: US20140364521A1
Принадлежит: Matsumoto Yushi Seiyaku Co Ltd

Heat-expandable microspheres with high encapsulation efficiency of a blowing agent and good heat-expansion performance, a process for reproducibly producing the heat-expandable microspheres and application thereof are provided. The heat-expandable microspheres comprise essentially a thermoplastic resin shell and a blowing agent encapsulated therein, and contain not more than 500 ppm of silicon, not more than 350 ppm of aluminum and not more than 600 ppm of the total of the silicon and aluminum. The heat-expandable microspheres retain at least 70% of the blowing agent encapsulated therein at the temperature which is the average of their expansion-initiation temperature and maximum expansion temperature.

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29-09-2016 дата публикации

PROCESS FOR PRODUCING WATER-REDISPERSIBLE POLYMER POWDER COMPOSITIONS HAVING CATIONIC FUNCTIONALITY

Номер: US20160280599A1
Автор: Seidel Jessica
Принадлежит:

Water-redispersible polymer powder compositions having cationic functionality are prepared by radically polymerizing one or more ethylenically unsaturated monomers in the presence of a protective colloid and/or emulsifier in an aqueous medium, and drying the resulting aqueous polymer dispersion after addition of a catonic protective colloid as a drying aid, the cationic protective colloid comprising a homopolymer or copolymer of one or more cationic monomers having a quaternary ammonium halide group, with 50 wt % to 100 wt % of the halide ions in the quaternary ammonium halide groups having been replaced by nonhalide anions, and with the fraction of halide ions being less than 1 wt %, based on the total weight of the polymer powder composition. 110.-. (canceled)11. A process for producing a water-redispersible polymer powder composition having cationic functionality , comprising radically polymerizing one or more ethylenically unsaturated monomers in the presence of a protective colloid and/or emulsifier in an aqueous medium , and drying the resulting aqueous polymer dispersion after addition of a catonic protective colloid as a drying aid , wherein the cationic protective colloid comprises homopolymers or copolymers of one or more cationic monomers having a quaternary ammonium halide group , with 50 wt % to 100 wt % of halide ions in the quaternary ammonium halide groups having been replaced by nonhalide anions , and with the fraction of halide ions being less than 1 wt % , based on the total weight of the polymer powder composition.12. The process of claim 11 , wherein at least one cationic protective colloid comprises homopolymers or copolymers of one or more cationic monomers selected from the group consisting of diallyldimethylammonium chloride claim 11 , diallyldiethylammonium chloride claim 11 , (3 -methacryloyloxy)propyltrimethylammonium chloride claim 11 , (2-methacryloyloxy)ethyltrimethylammonium chloride claim 11 , (3 -methacrylamido)propyltrimethyl - ...

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29-09-2016 дата публикации

Polyvinylamide Polymers Containing Polymerizable Functionalities

Номер: US20160280826A1
Принадлежит:

The present invention relates to a polymer comprising an N-vinyl amide monomer and a dual functional monomer. In the case where the dual functional monomer incorporates a glycidyl acrylate, a third polymerizable monomer is also included. The polymer can be varied in charge. 2. A polymer according to comprising:a) 5-95 weight % of a N-vinyl amide monomer;b) 95-5 weight % dual functional monomer.3. A polymer according to comprising:a) 20-80 weight % of a N-vinyl amide monomer;b) 80-20 weight % dual functional monomer.4. A polymer according to comprising:a) 40-60 weight % of a N-vinyl amide monomer;b) 60-40 weight % dual functional monomer.6. A polymer according to wherein said third polymerizable monomer is at least one monomer selected from the group consisting of hydroxyethylmethacrylate claim 5 , (HEMA) claim 5 , vinyl acetate (VA) claim 5 , ethyl acrylate claim 5 , methyl acrylate claim 5 , methylmethacrylate claim 5 , dimethylaminoethyl methacrylate claim 5 , dimethylaminopropylmethacrylate claim 5 , acrylamide claim 5 , methacrylamide claim 5 , acrylonitrile claim 5 , ethylene claim 5 , styrene claim 5 , maleic anhydride claim 5 , acrylic acid claim 5 , sodium vinylsulfonate claim 5 , vinyl chloride claim 5 , vinyl imidazole claim 5 , vinylpyridine claim 5 , trimethylvinylsilane claim 5 , polyfunctional acrylate claim 5 , polyfunctional allyl ether claim 5 , vinyl propionate claim 5 , crotonic acid claim 5 , vinyl carbonate and allyl acetate and allyl alcohol.10. A polymer according to wherein said dual functional glycidyl monomer has a (meth)acrylate functional group.11. A polymer according to comprising:a) 60 weight % of a VP monomer;b) 5 weight % of a GMA monomer; andc) 35 weight % of a third polymerizable monomer wherein said third polymerizable monomer is HEMA.12. A polymer according to comprising:a) 85-40 weight % of a VP monomer;b) 5-20 weight % of a GMA monomer; andc) 10-50 weight % of a third polymerizable monomer wherein said third polymerizable ...

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