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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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Форма поиска

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 4683. Отображено 100.
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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20-09-2012 дата публикации

Dental composition

Номер: US20120238662A1
Принадлежит: DENTSPLY DETREY GMBH

Dental cement composition comprising a polymerizable polyacidic polymer having repeating units in the polymer backbone, which are represented by the following formula (I)1 (II), and/or (III): wherein X represents O, S, or NR′, whereby R′ represents a hydrogen atom or a straight or branched C 1 -C 6 alkyl group, C 3 -C 6 cycloalkyl group, or C 4 -C 8 cycloalkylalkyl group, Y a group of the following formula (IV), wherein each of L 1 , L 2 , L 3 and L 4 , which are independent from each other represents a single bond, a straight or branched C 1 -C 6 alkylene group, a straight or branched C 1 -C 6 alkenylene, or a straight or branched C 1 -C 20 alkylene group which includes 1 to 8 atoms selected from oxygen and sulfur atoms, X′ represents O, S, or NR″, whereby R″ represents a hydrogen atom or a straight or branched C 1 -C 6 alkyl group, C 3 -C 6 cycloalkyl group, or C 4 -C 8 cycloalkylalkyl group, m is 0 to 3, and n is 1 to 3.

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15-11-2012 дата публикации

Water- and oil-resistant agent having a decreased content of vinyl pyrrolidone monomer

Номер: US20120285645A1
Автор: Eiji Masuda, Kayo Kusumi
Принадлежит: Daikin Industries Ltd

A water- and oil-resistant agent obtained by mixing a fluorine-containing copolymer obtained by copolymerizing (a) a (meth)acrylate monomer (a) having a polyfluoroalkyl group having 1 to 6 carbon atoms, (b) a vinylpyrrolidone monomer, (c) a monomer having an anion-donating group, and (d) a fluorine-free (meth)acrylate monomer with a liquid medium and an acid under heating, can have a decreased residual amount of unreacted vinylpyrrolidone monomer of at most 10 ppm and can afford a superior water- and oil-resistance to a paper. The invention also discloses a method of producing the water- and oil-resistant agent, a paper treatment composition comprising the water- and oil-resistant agent, a method for treating a paper with the treatment composition, and a paper treated with the water- and oil-resistant agent.

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29-08-2013 дата публикации

Radiopaque shape memory polymers for medical devices

Номер: US20130225778A1
Принадлежит: Individual

Radiopaque polymer compositions and methods for making the compositions are provided. These radiopaque polymer compositions include shape memory polymer compositions comprising a crosslinked polymer network, the network comprising a first repeating unit derived from a monofunctional iodinated monomer and a second repeating unit derived from a multifunctional non-iodinated monomer wherein neither of the two monomers is fluorinated. Devices formed from radiopaque polymer compositions are also provided.

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31-10-2013 дата публикации

Polymers Comprising Hydroxyl Groups And Ester Groups And Method For The Production Thereof

Номер: US20130289206A1
Принадлежит: CLARIANT FINANCE (BVI) LIMITED

The invention relates to polymers comprising ester/hydroxyl groups, containing repetitive structural units of formulae (I) and (II) in blocks, alternating, or random sequence wherein D represents a direct bond between the polymer backbone and the hydroxyl group, a C- to C-alkylene group, a C- to C-arylene group, a oxyalkylene group of formula —O—R—, an ester group of formula —C(O)—O—R— or an amide group of formula —C(O)—N(R)R—, E represents a hydrocarbon group having 1 to 10 C-atoms, Rrepresents hydrogen, a hydrocarbon group having 1 to 50 C-atoms or an acyl group of formula —C(O)—R, Rrepresents a C- to C-alkylene group, Rrepresents hydrogen or a C- to C-alkyl group, which can have substituents, Rrepresents a hydrocarbon group having 1 to 50 C-atoms, A represents a C- to C-alkylene group, k represents a number between 1 and 100, n represents a number from 0 to 4999, m represents a number from 1 to 5000, n+m for a number from 10 to 5000, under the proviso that a) the molar fraction of the structural units (I) on the polymer is between 0 and 99.9 mol-%, and b) the molar fraction of the structural units (II) on the polymers between 0.1 and 100 mol-% of repetitive units. The invention also relates to a method for the production of said polymers by exposing a polymer reaction mixture containing hydroxyl groups and ether carbon esters to microwaves. 2. The process as claimed in claim 1 , in which the hydroxyl-bearing polymer further comprises claim 1 , as well as the structural units of the formula (I) claim 1 , structural units derived from further ethylenically unsaturated monomers.3. The process as claimed in claim 1 , in which the structural units of the formula (I) derive from vinyl alcohol.4. The process as claimed in claim 2 , in which the hydroxyl-bearing polymer further comprises claim 2 , as well as the structural units of the formula (I) claim 2 , structural units derived from vinyl acetate.5. The process as claimed in claim 1 , in which Ris a hydrocarbyl ...

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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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14-01-2021 дата публикации

3D PRINTED COMPOSITES FROM A SINGLE RESIN BY PATTERNED LIGHT EXPOSURES

Номер: US20210011385A1
Принадлежит:

Provided herein are processes for the generation of composite polymer materials utilizing a single resin. The processes utilize diffusion between a region undergoing a polymerization reaction preferentially polymerizing one monomer component and an unreactive region. Diffusion and subsequent/concurrent polymerization results in a higher concentration of the more reactive monomer component in the reacting region and a higher concentration of the less reactive monomer components in the unreactive region. The unreactive region may be later polymerized. In embodiments, photopolymerization is used and the regions are generated by a mask or other mechanism to pattern the light. 1. A composite material derived from a single resin , the composite material comprising:a first polymerized region having a first ratio of a first polymerizable component to a second polymerizable component; anda second polymerized region having a second ratio of the first polymerizable component to the second polymerizable component, wherein:the single resin is characterized by a resin ratio of the first polymerizable component to the second polymerizable component; andthe resin ratio, the first ratio, and the second ratio are different.2. The composite material of claim 1 , wherein the first polymerizable component is monofunctional claim 1 , polyfunctional claim 1 , or a combination thereof.3. The composite material of claim 1 , wherein the second polymerizable component is monofunctional claim 1 , polyfunctional claim 1 , or a combination thereof.4. The composite material of claim 1 , wherein the first polymerizable component comprises one or more of a methacrylate monomer claim 1 , an acrylate monomer claim 1 , a thiol monomer claim 1 , a vinyl acetate monomer claim 1 , a styrene monomer claim 1 , a vinyl ether monomer claim 1 , a derivative thereof claim 1 , or a combination thereof.5. The composite material of claim 1 , wherein the second polymerizable component comprises one or more of an ...

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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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14-02-2019 дата публикации

Radiation curing composition

Номер: US20190048132A1
Принадлежит: PERSTORP AB

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.

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25-02-2021 дата публикации

METHOD FOR PRODUCING COPOLYMER OF POLAR GROUP-CONTAINING ALLYL MONOMER

Номер: US20210054117A1
Принадлежит:

The present invention relates to a method for producing a copolymer of ethylene and an allyl monomer that is represented by formula (1) and has a polar group, or a copolymer of ethylene, the allyl monomer that is represented by formula (1) and has a polar group, and another monomer. This production method is characterized by using a metal complex, which is represented by general formula (C1), as a polymerization catalyst and by having a silane compound, which is represented by general formula (2) and has a silicon-hydrogen bond, coexist with the metal complex. (In the formulae, the symbols are as defined in the description.) According to the present invention, a copolymer of an allyl monomer that has a polar group is able to be produced with high catalytic activity, said copolymer being capable of having various applications. 3: The method for producing a copolymer according to claim 2 , wherein R claim 2 , Rand Rin formula (2) are each independently a hydrogen atom claim 2 , an alkoxy group having 1 to 20 carbon atoms claim 2 , a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms claim 2 , or a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.6: The method for producing a copolymer according to claim 4 , wherein Y in formula (C2) is a substituted or unsubstituted phenylene group claim 4 , a substituted or unsubstituted methylene group claim 4 , or a substituted or unsubstituted imino group.7: The method for producing a copolymer according to claim 4 , wherein Rand Rin formula (C2) are both an alkyl group having 3 to 20 carbon atoms.9: The method for producing a copolymer according to claim 8 , wherein Y in formula (C3) is a substituted or unsubstituted phenylene group claim 8 , a substituted or unsubstituted methylene group claim 8 , or a substituted or unsubstituted imino group.10: The method for producing a copolymer according to claim 8 , wherein Rand Rin formula (C3) are both an alkyl group having 3 to 20 carbon atoms.11: ...

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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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01-03-2018 дата публикации

PLASTIC OPTICAL MEMBER

Номер: US20180059437A1
Принадлежит: HOYA LENS THAILAND LTD.

A plastic optical component with a high cutting ratio of blue light, and a method for producing the plastic optical component. The plastic optical component includes a benzophenone compound represented by formula (1) and an addition polymer obtained by radical polymerization of a monomer. The method for producing the plastic member includes a step of curing a mixture including the monomer, the benzophenone compound represented by formula (1), and a radical initiator. 2. The optical component according to claim 1 , wherein the benzophenone compound is 2 claim 1 ,2′-dihydroxy-4 claim 1 ,4′-dimethoxybenzophenone.3. The optical component according to claim 1 , wherein the benzophenone compound is comprised in an amount of 0.05 parts by mass to 3.0 parts by mass with respect to 100 parts by mass of a resin component forming the optical component.4. The optical component according to claim 1 , wherein a light cutting ratio in a wavelength region of 380 nm to 500 nm is 35% or more.5. The optical component according to claim 1 , wherein a cutting ratio of light having a wavelength of 410 nm is 50% or more.6. The optical component according to claim 1 , wherein the monomer includes a monomer having two or more polymerizable unsaturated bonds in a molecule.7. The optical component according to claim 1 , wherein the monomer includes diethylene glycol bis-allyl carbonate.8. The optical component according to claim 1 , wherein the monomer includes diethylene glycol bis-allyl carbonate claim 1 , benzyl methacrylate claim 1 , diallyl phthalate and alkyl methacrylate having an alkyl group having 1 to 4 carbon atoms.9. A lens substrate comprising the optical component according to .10. A plastic lens having the lens substrate according to . PTL 2 describes a plastic lens including a specific benzophenone derivative in a plastic substrate as a plastic lens with little yellow coloring despite absorbing ultraviolet rays having a wavelength of around 400 nm.PTL 3 describes an optical ...

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01-03-2018 дата публикации

PHOTOACID-GENERATING COMPOUND, POLYMER DERIVED THEREFROM, PHOTORESIST COMPOSITION INCLUDING THE PHOTOACID-GENERATING COMPOUND OR POLYMER, AND METHOD OF FORMING A PHOTORESIST RELIEF IMAGE

Номер: US20180059542A1
Принадлежит:

A photoacid-generating compound has the structure 8. A polymer comprising repeat units derived from the photoacid-generating compound of .9. A photoresist composition comprising the photoacid-generating compound of .10. A method of forming a photoresist relief image claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00009', 'claim 9'}, '(a) applying a layer of the photoresist composition of on a substrate to form a photoresist layer;'}(b) pattern-wise exposing the photoresist layer to activating radiation to form an exposed photoresist layer; and(c) developing the exposed photoresist layer to provide a photoresist relief image.11. A photoresist composition comprising the polymer of . The present invention relates to a photoacid-generating compound, a polymer formed from an embodiment of the photoacid-generating compound comprising a polymerizable group, a photoresist composition comprising the photoacid-generating compound, the polymer, or a combination thereof, and a method of forming a photoresist relief image with the photoresist composition.Advance lithographic techniques such as electron beam and Extreme Ultraviolet (EUV) lithographies are being used for the formation of fine patterns. Further shrinking of pattern size to 25 nanometers and less requires, in addition to other process and exposure tool related requirements, the development of highly resolving chemically amplified photoresist compositions. The use of slow diffusion photoacid-generating (PAG) compounds has proved to be critical for the improvement in resolution and pattern quality. Slow acid diffusion in a chemically amplified photoresist composition was achieved by attaching the acidic unit to one or more bulky substituents. However, the use of bulky substituents often decreases the solubility of the PAG compound, which is associated with PAG compound aggregation and/or inhomogeneous PAG compound distribution in the photoresist layer, and with the formation of defects during and after lithographic ...

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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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27-02-2020 дата публикации

COMPOSITION BASED ON ALLYL MONOMERS AND PEROXIDE(S) FOR THE MANUFACTURE OF ORGANIC GLASSES

Номер: US20200062924A1
Принадлежит: Arkema France

The present invention relates to the use of one or more specific organic peroxides for the polymerization of an allylic monomer and/or at least one allylic copolymer. 121-. (canceled)22. A process for polymerizing one or more allylic monomers and/or allylic copolymers comprising using one or more peroxides of the following formula (I):{'br': None, 'i': 't', '1-alkoxy-1--alkylperoxycyclohexane\u2003\u2003(I)'}wherein in formula (I) the alkoxy group comprises from 1 to 4 carbon atoms, the t-alkyl group comprises from 4 to 12 carbon atoms, and the cyclohexane ring is optionally substituted by 1 or 3 alkyl groups, each comprising from 1 to 3 carbon atoms.23. The process according to claim 22 , wherein the peroxide(s) of formula (I) is/are selected from the group consisting of 1-methoxy-1-tert-amylperoxycyclohexane (TAPMC) claim 22 , 1-methoxy-1-t-butylperoxycyclohexane (TBPMC) claim 22 , 1-methoxy-1-t-amylperoxy-3 claim 22 ,3 claim 22 ,5-trimethylcyclohexane claim 22 , 1-methoxy-1-t-butylperoxy-3 claim 22 ,3 claim 22 ,5-trimethylcyclohexane claim 22 , 1-ethoxy-1-t-amylperoxycyclohexane (TAPEC) claim 22 , 1-ethoxy-1-t-butylperoxycyclohexane (TBPEC) claim 22 , 1-ethoxy-1-t-amylperoxy-3 claim 22 ,3 claim 22 ,5-trimethylcyclohexane and/or 1-ethoxy-1-t-butylperoxy-3 claim 22 ,3 claim 22 ,5-trimethylcyclohexane.24. The process according to claim 22 , wherein the peroxide of formula (I) is 1-methoxy-1-tert-amylperoxycyclohexane.25. The process according to claim 22 , wherein the allylic monomer(s) is/are chosen from bis(allyl carbonate) monomers.27. The process according to claim 22 , wherein the allylic monomer(s) is/are selected from the group consisting of ethylene glycol bis(allyl carbonate) claim 22 , diethylene glycol bis(2-methyl carbonate) claim 22 , diethylene glycol bis(allyl carbonate) claim 22 , ethylene glycol bis(2-chloro allyl carbonate) claim 22 , triethylene glycol bis(allyl carbonate) claim 22 , 1 claim 22 ,3-propanediol bis(allyl carbonate) claim 22 , ...

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27-02-2020 дата публикации

3D PRINTED COMPOSITES FROM A SINGLE RESIN BY PATTERNED LIGHT EXPOSURES

Номер: US20200064739A1
Принадлежит:

Provided herein are processes for the generation of composite polymer materials utilizing a single resin. The processes utilize diffusion between a region undergoing a polymerization reaction preferentially polymerizing one monomer component and an unreactive region. Diffusion and subsequent/concurrent polymerization results in a higher concentration of the more reactive monomer component in the reacting region and a higher concentration of the less reactive monomer components in the unreactive region. The unreactive region may be later polymerized. In embodiments, photopolymerization is used and the regions are generated by a mask or other mechanism to pattern the light. 2. The process of claim 1 , wherein polymerizing the light polymerizable liquid composition in the second region generates a second polymer claim 1 , and wherein the first polymer is characterized by one or more different polymer properties than the second polymer claim 1 , the one or more different polymer properties selected from the group consisting of glass transition temperature claim 1 , storage modulus claim 1 , Young's modulus claim 1 , elongation to break claim 1 , elongation to yield claim 1 , and any combination thereof3. The process of claim 1 , wherein exposing the light polymerizable liquid composition to the first exposure to light results in a polymerization induced phase separation in the light polymerizable liquid composition.4. The process of claim 1 , wherein the first polymerizable component and the second polymerizable component are miscible in each other.5. The process of claim 1 , wherein the second polymerizable component is partially or fully immiscible with the first polymer.6. The process of claim 1 , wherein the first polymerizable component comprises one or more of a methacrylate monomer claim 1 , an acrylate monomer claim 1 , a thiol monomer claim 1 , a vinyl acetate derivative monomer claim 1 , a styrene monomer claim 1 , a vinyl ether monomer claim 1 , or any ...

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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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18-03-2021 дата публикации

Method for setting polymerization condition and method for manufacturing optical material

Номер: US20210079151A1
Принадлежит: Mitsui Chemicals Inc

A method for setting polymerization condition includes a physical property acquiring step of, when heating a composition including a polymerization-reactive compound and a polymerization catalyst and/or a polymerization initiator and retaining heat at a predetermined temperature, acquiring a physical property value a derived from a functional group before heating of the polymerization-reactive compound and a physical property value b derived from a remaining functional group after maintaining a temperature for a predetermined time; a remaining functional group ratio calculating step of calculating a remaining functional group ratio from the physical property value a and the physical property value b; a reaction rate coefficient calculating step of calculating a reaction rate coefficient from the remaining functional group ratio on the basis of a reaction rate equation; and a polymerization temperature calculating step of calculating a polymerization temperature on the basis of the reaction rate coefficient and conditions below.

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18-03-2021 дата публикации

Acrylic Emulsion Pressure-Sensitive Adhesive Composition

Номер: US20210079271A1
Принадлежит: LG CHEM, LTD.

An acrylic emulsion pressure-sensitive adhesive composition is provided. The pressure-sensitive composition includes a copolymer which is prepared by emulsion polymerization of a monomer mixture in the presence of a polymeric emulsifier. The pressure-sensitive adhesive composition exhibits an excellent adhesive force to both hydrophobic and hydrophilic base materials while leaving less residue is provided. 2. The acrylic emulsion pressure-sensitive adhesive composition of claim 1 , wherein the (meth)acrylic acid ester-based monomer is one or more selected from the group consisting of methyl(meth)acrylate claim 1 , ethyl(meth)acrylate claim 1 , propyl(meth)acrylate claim 1 , isopropyl(meth)acrylate claim 1 , butyl(meth)acrylate claim 1 , isobutyl(meth)acrylate claim 1 , t-butyl(meth)acrylate claim 1 , pentyl(meth)acrylate claim 1 , hexyl(meth)acrylate claim 1 , heptyl(meth)acrylate claim 1 , octyl(meth)acrylate claim 1 , isooctyl(meth)acrylate claim 1 , 2-ethylhexyl(meth)acrylate claim 1 , decyl(meth)acrylate claim 1 , isodecyl(meth)acrylate claim 1 , dodecyl(meth)acrylate claim 1 , isobornyl(meth)acrylate claim 1 , and lauryl (meth)acrylate.3. The acrylic emulsion pressure-sensitive adhesive composition of claim 1 , wherein the vinyl-based monomer is one or more selected from the group consisting of a vinyl ester-based monomer containing an alkyl group having 1 to 5 carbon atoms claim 1 , and an aromatic vinyl-based monomer.4. The acrylic emulsion pressure-sensitive adhesive composition of claim 1 , wherein the unsaturated carboxylic acid-based monomer is one or more selected from the group consisting of maleic anhydride claim 1 , fumaric acid claim 1 , crotonic acid claim 1 , itaconic acid claim 1 , and (meth)acrylic acid.6. The method of claim 5 , wherein the polymeric emulsifier is included in an amount of 0.1 parts by weight to 5.0 parts by weight with respect to 100 parts by weight of the monomer mixture.7. The method of claim 5 , wherein the (meth)acrylic acid ...

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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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23-04-2015 дата публикации

Poly(vinyl ester) Polymers for In Vivo Nucleic Acid Delivery

Номер: US20150110732A1
Принадлежит:

The present invention is directed membrane active poly(vinyl ester) polymers and compositions for targeted delivery of RNA interference (RNAi) polynucleotides to cells in vivo. RNAi polynucleotides are conjugated to the poly(vinyl ester) polymers and the polymers are reversibly modified to enable in vivo targeted delivery. Membrane activity of the poly(vinyl ester) provides for movement of the RNAi polynucleotides from outside the cell to inside the cell. Reversible modification provides physiological responsiveness. 120-. (canceled)2211. The poly(vinyl ester) random copolymer of claim wherein the polydispersity of the polymer is less than or equal to 1.5.23. The poly(vinyl ester) random copolymer of wherein the polydispersity of the polymer is less than or equal to 1.3.24. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 1.25. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 75/25.26. The poly(vinyl ester) random copolymer of wherein Y is (CH).27. The poly(vinyl ester) random copolymer of wherein Y is (CH).28. The poly(vinyl ester) random copolymer of wherein Y is (CH).29. The poly(vinyl ester) random copolymer of wherein Y is (CH)—O—(CH).30. The poly(vinyl ester) random copolymer of wherein R is a hydrophobic group having 3 carbon atoms.31. The poly(vinyl ester) random copolymer of wherein Y is (CH).32. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 1.33. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 3.34. The poly(vinyl ester) random copolymer of wherein Y is (CH)—O—(CH).35. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 1.36. The poly(vinyl ester) random copolymer of wherein the ratio m/n is about 3.37. The poly(vinyl ester) random copolymer of wherein R is a hydrophobic group having 4 carbon atoms.3811. The poly(vinyl ester) random copolymer of claim wherein the hydrophobic group is branched.3914. The poly(vinyl ester) random copolymer ...

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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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03-05-2018 дата публикации

FLUORINE-CONTAINING COPOLYMER, COMPOSITION, OPTICAL FILM, HARDCOAT FILM, POLARIZING PLATE, AND TOUCH PANEL DISPLAY, AND METHOD FOR PRODUCING FLUORINE-CONTAINING COPOLYMER

Номер: US20180117888A1
Принадлежит: FUJIFILM Corporation

A fluorine-containing copolymer includes: a repeating unit represented by General Formula (I) and a repeating unit represented by General Formula (II), a composition containing the fluorine-containing copolymer, an optical film having a layer formed of the composition, a hardcoat film, a polarizing plate, and a touch panel display, and a method for producing a fluorine-containing copolymer. 2. The fluorine-containing copolymer according to claim 1 ,wherein the fluorine-containing copolymer has at least a first segment and a second segment,the first segment includes 30% by mass or more of the repeating unit represented by General Formula (I) and includes 0% to 20% by mass of the repeating unit represented by General Formula (II) with respect to all repeating units included in the first segment, andthe second segment includes 30% by mass or more of the repeating unit represented by General Formula (II) and includes 0% to 3% by mass of the repeating unit represented by General Formula (I) with respect to all repeating units included in the second segment.3. The fluorine-containing copolymer according to claim 2 ,wherein the fluorine-containing copolymer is a polymer or a block copolymer having a branched structure.5. The fluorine-containing copolymer according to claim 4 ,wherein ma represents 1 or 2, and na represents an integer of 1 to 6.6. The fluorine-containing copolymer according to claim 1 ,{'sup': '3', 'wherein Ris a methyl group, an ethyl group, a propyl group, a t-butyl group, or an n-butyl group.'}9. A composition comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the fluorine-containing copolymer according to .'}10. The composition according to claim 9 , further comprising:a curable compound.11. An optical film comprising:{'claim-ref': {'@idref': 'CLM-00009', 'claim 9'}, 'a layer formed of the composition according to .'}12. A hardcoat film comprising:{'claim-ref': {'@idref': 'CLM-00009', 'claim 9'}, 'a layer formed of the composition according ...

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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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28-05-2015 дата публикации

Resin, photoresist composition, and method for producing photoresist pattern

Номер: US20150147695A1
Принадлежит: Sumitomo Chemical Co Ltd

A resin comprising: a structural unit which has, at a side chain, a carbonyl group and a thiolactone ring-containing amino group where the thiolactone ring may have a substituent, and a structural unit having an acid-labile group.

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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

Fluorine-containing copolymer

Номер: US20200157372A1
Принадлежит: Kanto Denka Kogyo Co Ltd

The present invention is a fluorine-containing copolymer including (A) a fluoroolefin in an amount of 15 to 85 mol % of all constituent monomers; (B) a specific organosilicon compound in an amount of 0.001 to 10 mol % of all the constituent monomers; (C) one or more monomers selected from vinyl ethers, vinyl esters, methacrylic esters and acrylic esters, the one or more monomers not having a curing reactive group and having an aliphatic saturated hydrocarbon group with 1 to 20 carbons, a glass transition temperature of a homopolymer of the monomer being lower than 0° C., in an amount of 5 to 40 mol % of all the constituent monomers; and (D) one or more monomers selected from vinyl ethers, vinyl esters, allyl ethers, methacrylic esters and acrylic esters, and having a curing reactive group, in an amount of 1 to 25 mol % of all the constituent monomers, wherein the fluorine-containing copolymer has a glass transition temperature of −30° C. to 20° C., a number average molecular weight of 2.0×10 4 to 7.0×10 4 , and a weight average molecular weight of 1.0×10 5 to 3.0×10 5 .

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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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06-06-2019 дата публикации

FLUOROPOLYMERS FOR COATING APPLICATIONS

Номер: US20190169338A1
Принадлежит:

Copolymers formed by copolymerization of: (1) one or more hydrofluoroolefin monomer(s) selected from the group consisting of hydrofluoroethylenes, hydrofluoropropenes, hydrofluorobutenes, hydrofluoropentenes and combinations of these; (2) one or more aromatic vinyl ester monomer(s); (3) one or more vinyl ester monomer(s); and (4) one or more vinyl ether monomer(s), wherein at least a portion of said vinyl ether monomer is a hydroxyl group-containing vinyl ether monomer. 1. A fluorocopolymer formed by copolymerization of:(1) one or more hydrofluoroolefin monomer(s) selected from the group consisting of hydrofluoroethylenes, hydrofluoropropenes, hydrofluorobutenes, hydrofluoropentenes and combinations of these;(2) one or more aromatic vinyl ester monomer(s);(3) one or more vinyl ester monomer(s); and(4) one or more vinyl ether monomer(s), wherein at least a portion of said vinyl ether monomer is a hydroxyl group-containing vinyl ether monomer.2. The fluorocopolymer of claim 1 , wherein the one or more aromatic vinyl ester monomers comprises a monomer represented by the formula CH═CH—O(C═O)-(A) claim 1 , wherein (A) represents a phenyl group with or without a side group.3. The fluorocopolymer of claim 1 , wherein the one or more aromatic vinyl ester monomers comprises vinyl benzoate.4. The fluorocopolymer of claim 1 , wherein the one or more hydrofluoroolefin monomer(s) is selected from hydrofluoropropenes.5. The fluorocopolymer of claim 4 , wherein the one or more hydrofluoroolefin monomer(s) is selected from 2 claim 4 ,3 claim 4 ,3 claim 4 ,3-tetrafluoropropene claim 4 , 1 claim 4 ,3 claim 4 ,3 claim 4 ,3-tetrafluoropropene claim 4 , and combinations thereof.6. The fluorocopolymer of claim 5 , wherein the one or more hydrofluoroolefin monomer(s) is 1 claim 5 ,3 claim 5 ,3 claim 5 ,3-tetrafluoropropene.7. The fluorocopolymer of claim 6 , wherein the 1 claim 6 ,3 claim 6 ,3 claim 6 ,3-tetrafluoropropene comprises trans-1 claim 6 ,3 claim 6 ,3 claim 6 ,3- ...

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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
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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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27-07-2017 дата публикации

FATTY ACID VINYL ESTER COPOLYMERS WITH WAX QUALITIES

Номер: US20170208828A1
Принадлежит:

Subject-matter of the invention are processes for preparing fatty acid vinyl ester copolymers by radically initiated polymerization of a) one or more vinyl esters of carboxylic acids having 16 to 22 carbon atoms and b) one or more vinyl esters of carboxylic acids having 2 to 15 carbon atoms, with one or more vinyl esters a) and one or more vinyl esters b) being metered in during the polymerization, characterized in that during the polymerization either the metering rate of vinyl ester a) or the metering rate of vinyl ester b) is reduced and the metering rate of the other of the two vinyl esters, a) or b), is increased. 1. A method for preparing fatty acid vinyl ester copolymers by free-radical initiated polymerization ofa) one or more vinyl esters of carboxylic acids having 16 to 22 carbon atoms andb) one or more vinyl esters of carboxylic acids having 2 to 15 carbon atoms,wherein the one or more vinyl esters a) and the one or more vinyl esters b) are metered in during the polymerization, andduring the polymerization either a metered addition rate of vinyl ester a) or a metered addition rate of vinyl ester b) is reduced and the metered addition rate of the other of the two vinyl esters a) orb) is increased.2. The method for preparing fatty acid vinyl ester copolymers as claimed in claim 1 , wherein the one or more vinyl esters a) are vinyl esters of carboxylic acids selected from the group consisting of palmitic acid claim 1 , stearic acid claim 1 , margaric acid claim 1 , arachidic acid and behenic acid and/or the one or more vinyl esters b) are members selected from the group consisting of vinyl acetate claim 1 , vinyl propionate claim 1 , vinyl butyrate claim 1 , 1-methylvinyl acetate claim 1 , vinyl pivalate claim 1 , vinyl laurate claim 1 , vinyl neodecanoate and vinyl esters of α-branched monocarboxylic acids having 9 to 11 carbon atoms.3. The method for preparing fatty acid vinyl ester copolymers as claimed in claim 1 , wherein the vinyl esters a) are used ...

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