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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1108. Отображено 100.
06-06-2013 дата публикации

ARBORESCENT POLYMERS AND PROCESS FOR MAKING SAME

Номер: US20130144021A1
Автор: Kaszas Gabor, Kulbaba Kevin, Puskas Judit
Принадлежит:

The present invention relates to arborescent polymers and to a process for making same. In one embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with a polymer or copolymer having a low glass transition temperature (T), and to a process for making such arborescent polymers. In another embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with less than about 5 weight percent end blocks derived from a polymer or copolymer having a high glass transition temperature (T), and to a process for making such arborescent polymers. 1. An end-functionalized arborescent polymer comprising:{'sub': 'g', 'an arborescent elastomeric polymer having two or more branching points and a low glass transition temperature (T); and'}{'sub': 'g', 'less than about 5 weight percent end blocks derived from a polymer or copolymer having a high glass transition temperature (T).'}2. The end-functionalized arborescent polymer of claim 1 , wherein the end-functionalized arborescent polymer exhibits thermoplastic elastomeric properties.3. The end-functionalized arborescent polymer of claim 1 , wherein the arborescent elastomeric polymer comprises an arborescent polyisoolefin core.5. The end-functionalized arborescent polymer of claim 6 , wherein the inimer of Formula (I) comprises either an aryl or alkyl group joining A and B.6. The end-functionalized arborescent polymer of claim 6 , wherein the inimer of Formula (I) comprises a benzene ring joining A and B.8. The end-functionalized arborescent polymer of claim 6 , wherein the arborescent elastomeric polymer is formed from at least one inimer selected from the group consisting of 4-(2-hydroxyisopropyl)styrene claim 6 , 4-(2-methoxyisopropyl)styrene claim 6 , 4-(1-methoxyisopropyl)styrene claim 6 , 4-(2-chloroisopropyl)styrene claim 6 , 4-(2 ...

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Номер записи: 1
29-08-2013 дата публикации

Terpene derived compounds

Номер: US20130225462A1
Автор: Stephen A. Di Biase, Syed Q.A. Rizvi
Принадлежит: Elevance Renewable Sciences Inc

This invention relates to terpene derived compounds and farnesene derived compounds, and to the use of such terpene derived compounds and farnesene derived compounds in lubricants, detergents, dispersants, functional fluids, fuels, polymer compositions, cold flow improvers, and the like.

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Номер записи: 2
26-09-2013 дата публикации

POLYMERS OF ISROPENE FROM RENEWABLE RESOURCES

Номер: US20130253141A1
Автор: Aldor Ilana S., Cervin Marguerite, Chotani Gopal K., Feher Frank J., Fioresi Carol, McAuliffe Joseph, Miasnikov Andrei, Puhala Aaron S., SANFORD Karl J., Valle Fernando, Whited Gregory M.
Принадлежит:

It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has δC value of greater than −22‰. 1. A polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer , wherein the polyisoprene polymer has δC value of greater than −22.2. The polyisoprene polymer as specified in wherein the polyisoprene polymer is a homopolymer.3. The polyisoprene polymer as specified in wherein the polyisoprene polymer has a cis-microstructure content which is within the range of 98% to 99.5% claim 2 , a 3 claim 2 ,4-microstructure content which is within the range of 0.5% to 2.0% claim 2 , and a trans-microstructure content which is within the range of 0.0% to 0.5%.4. The polyisoprene polymer as specified in wherein the polyisoprene polymer contains more than 70 percent 1 claim 2 ,2- and 3 claim 2 ,4-structural units.5. The polyisoprene polymer as specified in wherein the polyisoprene polymer has a 3 claim 2 ,4-microstructure content which is within the range of about 65% to about 85% and a cis-1 claim 2 ,4-microstructure content which is within the range of about 15% to about 35%.6. The polyisoprene polymer as specified in wherein the polyisoprene polymer is ...

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Номер записи: 3
26-12-2013 дата публикации

Methods for preparation of novel graft copolymers

Номер: US20130345367A1
Автор: Collin V. Bonduelle, Dana K. Adkinson, Elizabeth R. Gillies, Goran Stojcevic, Lorenzo P. Ferrari, Solmaz Karamdoust
Принадлежит: University of Western Ontario

The present invention relates to novel graft copolymers of functionalized poly(isoolefin-co-conjugated diolefin, and a process of preparing such graft copolymers. The present invention also relates to a method of preparing functionalized copolymers of isoolefins and conjugated diolefins.

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Номер записи: 4
27-02-2014 дата публикации

ACTIVITY MONITORING AND POLYMERIZATION PROCESS CONTROL

Номер: US20140058050A1
Автор: Berger Michael, Leiberich Ricarda, Paul Hanns-Ingolf, Tracht Ursula, Wiesner Udo
Принадлежит: LANXESS DEUTSCHLAND GMBH

The present invention relates to a method to control a liquid feed stream carried out by measuring at least one spectrum of the liquid feed stream comprising an initiator or catalyst, determining its activity using a predictive model on the basis of said spectrum and adjusting the feed streams and/or the preparation conditions of the feed stream comprising the initiators or catalysts in order to attain or maintain a desired level of total activity. In a further aspect the invention relates to a controlled process for the preparation of polymers in a polymerization reactor by contacting liquid feed streams comprising monomers and initiators or catalysts, whereby the control of the feed streams entering the polymerization reactor and/or the initiator or catalyst preparation is carried out by measuring at least one spectrum of the liquid feed stream comprising an initiator or catalyst, determining its activity using a predictive model on the basis of said spectrum and adjusting the feed streams and/or the preparation conditions of the feed stream comprising the initiators or catalysts in order to attain or maintain a desired level of total activity within the polymerization reactor. More particularly, the invention relates to a method for controlling the activity of aluminium containing initiators in a process for the co-polymerisation of isolefins and multiolefins, in particular isobutylene and isoprene. The present invention further to device and a chemical plant suitable to operate said process. 3. The process according to or the method according to , wherein the active liquid medium comprises at least one polymerisation initiator or polymerisation catalyst and an organic solvent.4. The process or method according to claim 3 , wherein the polymerisation initiator is selected from cationic initiators.5. The process or method according to claim 4 , wherein the cationic initiators are selected from at least one lewis acid or at least one organometal compound such or a ...

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Номер записи: 5
14-01-2021 дата публикации

SURFACE PROTECTION FILM

Номер: US20210009870A1
Автор: SANTOSO Ricky, SSUBRAMANIAM Surya
Принадлежит:

A surface protection film includes an adhesion layer that includes a blend of a first hydrogenated styrene block copolymer, a second hydrogenated styrene block copolymer different from the first hydrogenated styrene block copolymer, and polyethylene. An Adhesion Build Value of the surface protection film is less than 2.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes. 1. A surface protection film comprising:an adhesion layer comprising a blend of a first hydrogenated styrene block copolymer, a second hydrogenated styrene block copolymer different from the first hydrogenated styrene block copolymer, and polyethylene,wherein an Adhesion Build Value of the surface protection film is less than 2.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.2. The surface protection film according to claim 1 , wherein the Adhesion Build Value of the surface protection film is less than 2.0 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.3. The surface protection film according to claim 1 , wherein the Adhesion Build Value of the surface protection film is less than 1.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.4. The surface protection film according to claim 1 , wherein the first hydrogenated styrene block copolymer comprises about 34 wt % styrene and has a Melt Flow Rate at 230° C. and 2.16 kg of about 48 grams/10 minutes.5. The surface protection film according to claim 1 , wherein the second hydrogenated styrene block copolymer comprises about 65 wt % styrene and has a Melt Flow Rate at 230° C. and 2.16 kg of about 0.4 grams/10 minutes.6. The surface protection film according to claim 1 , wherein the adhesion layer blend comprises a total of 25 wt %-50 wt % hydrogenated styrene block copolymer claim 1 ...

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Номер записи: 6
10-01-2019 дата публикации

LATEX COMPOSITION

Номер: US20190010271A1
Автор: KODEMURA Junji, YAMAMOTO Misa
Принадлежит: ZEON CORPORATION

A latex composition is formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer. In the latex composition, the aqueous solution of an aluminum compound preferably has a pH of 5 to 13. In the latex composition, the aqueous solution of an aluminum compound is preferably an aqueous solution of a metal salt of aluminate. 1. A latex composition formed by adding an aqueous solution of an aluminum compound to a latex of a carboxyl group-containing synthetic polyisoprene and/or a carboxyl group-containing styrene-isoprene-styrene block copolymer.2. The latex composition according to claim 1 , wherein the aqueous solution of an aluminum compound has a pH of 5 to 13.3. The latex composition according to claim 1 , wherein the aqueous solution of an aluminum compound is an aqueous solution of a metal salt of aluminate.4. The latex composition according to claim 1 , wherein the carboxyl group-containing synthetic polyisoprene is obtained by graft polymerization of a monomer having a carboxyl group onto a synthetic polyisoprene.5. The latex composition according to claim 1 , wherein the carboxyl group-containing styrene-isoprene-styrene block copolymer is obtained by graft polymerization of a monomer having a carboxyl group onto a styrene-isoprene-styrene block copolymer.6. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanizing agent with respect to 100 parts by weight of the total of the carboxyl group-containing synthetic polyisoprene and the carboxyl group-containing styrene-isoprene-styrene block copolymer.7. The latex composition according to claim 1 , further comprising 0.05 to 1.0 part by weight of a sulfur vulcanization accelerator with respect to 100 parts by weight of the total of the carboxyl group-containing synthetic polyisoprene and the carboxyl group-containing ...

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Номер записи: 7
09-01-2020 дата публикации

PRODUCTION METHOD FOR POLAR OLEFIN POLYMER AND COPOLYMER

Номер: US20200010581A1
Автор: HOU Zhaomin, NISHIURA Masayoshi, WANG Chunxiang, WANG Haobing, Yang Yang
Принадлежит: RIKEN

An object of the present invention is to provide a novel method of producing a nonpolar olefin polymer (e.g., a copolymer of a nonpolar olefin and a polar olefin). The present invention provides a method of producing a polar olefin polymer or copolymer, the method including the polymerization step of polymerizing a polar olefin monomer using, as a catalyst, a polymerization catalyst composition containing: 1) a metallocene complex represented by Formula (I), which contains a central metal M that is scandium (Sc) or yttrium (Y), a ligand Cp* containing a cyclopentadienyl derivative and being bound to the central metal, monoanionic ligands Qand Q, and W neutral Lewis bases L wherein W is an integer of 0 to 3; and 2) an ionic compound composed of a non-coordinating anion and a cation. 2. The method according to claim 1 , wherein the ligand Cp* in the metallocene complex is selected from the group consisting of a substituted or unsubstituted cyclopentadienyl ring claim 1 , a substituted or unsubstituted indenyl ring claim 1 , and a substituted or unsubstituted fluorenyl ring.3. The method according to claim 1 , wherein the monoanionic ligands Qand Qin the metallocene complex are independently a trimethylsilylmethyl group or an o-dimethylaminobenzyl group.4. The method according to claim 1 , wherein the neutral Lewis bases L in the metallocene complex are tetrahydrofuran.5. The method according to claim 1 , wherein the polymerization step is performed in the presence of a solvent selected from the group consisting of saturated aliphatic hydrocarbons claim 1 , saturated alicyclic hydrocarbons claim 1 , aromatic hydrocarbons claim 1 , and halogenated hydrocarbons.6. The method according to claim 1 , wherein the polar olefin monomer contains a polar group represented by the following Formula (II):{'br': None, 'sup': '1', 'sub': 'n', '—Z(R)\u2003\u2003(II)'}{'sup': '1', 'wherein, Z represents a heteroatom selected from the group consisting of nitrogen, oxygen, phosphorus, ...

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Номер записи: 8
03-02-2022 дата публикации

METHOD FOR PREPARING AN AQUEOUS POLYMER DISPERSION FROM A VINYL AROMATIC COMPOUND AND A CONJUGATED ALIPHATIC DIENE

Номер: US20220033534A1
Автор: Cimpeanu Carmen-Elena, LAWRENZ Dirk, VELING Nico
Принадлежит:

The present invention relates to a process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization, by polymerizing, in an aqueous medium, 1. A process for producing an aqueous polymer dispersion by free-radically initiated aqueous emulsion polymerization , which comprises polymerizing , in an aqueous medium ,(a) 40 to 75 parts by weight of at least one vinylaromatic compound and(b) 24.9 to 59.9 parts by weight of at least one conjugated aliphatic diene(c) 0.1 to 10 parts by weight of at least one monomer comprising acid groups and(d) 0 to 20 parts by weight of at least one other monoethylenically unsaturated monomer, the amounts of the monomers (a) to (d) adding up to 100 parts by weight, the continuous metering of the inorganic peroxide starts at the same time as the continuous metering of the vinylaromatic compound,', 'the metering of the organic peroxide is started at a time at which at least 5% and not more than 20% of the vinylaromatic compound has already been metered in in a continuous mass flow under polymerization conditions and', 'optionally a portion of inorganic peroxide is initially charged., 'in a monomer feed process in the presence of at least one inorganic peroxide and at least one organic peroxide, with the proviso that'}2. The process according to claim 1 , wherein the vinylaromatic compound is styrene and/or methylstyrene and the conjugated aliphatic diene is 1 claim 1 ,3-butadiene and/or isoprene.3. The process according to claim 1 , wherein during the monomer feed no reducing agent capable of forming a redox initiator system with the organic or inorganic peroxides is present.4. The process according to claim 1 , wherein the inorganic peroxide is selected from hydrogen peroxide and ammonium or alkali metal salts of peroxodisulfates and the organic peroxide is selected from alkyl hydroperoxides and aryl hydroperoxides.5. The process according to claim 1 , wherein the polymerization is initiated in ...

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Номер записи: 9
24-01-2019 дата публикации

Compositions of Isobutylene, Styrene and Styrene with Graft-On Pendant Double Bonds

Номер: US20190023827A1
Автор: Passino Hillary L., Rapp Jennifer L., Tsou Andy H.
Принадлежит:

A composition and methods for making the same. The composition includes an isoolefin having from 4 to 7 carbons, a first styrene, and a second styrene alkylated with a diene to have a pendant double bond. A copolymer having units derived from an isoolefin having from 4 to 7 carbons and an alkylstyrene can be reacted with a diene to provide the composition. The reaction of the copolymer with the diene can be reacted in the presence of a catalyst at a temperature of about 80° C. to about 200° C. 1. A composition comprising:an isoolefin having from 4 to 7 carbons;a first styrene; anda second styrene alkylated with a diene to have a pendant double bond.2. A composition comprising the reaction product of:a copolymer of an isoolefin having from 4 to 7 carbons and a first styrene; anda diene.3. A polymer comprising:a copolymer of an isoolefin having from 4 to 7 carbons and a first styrene grafted to a diene.4. The composition of claim 1 , wherein the diene is conjugated.5. The composition of claim 1 , wherein the diene is 2-methyl-1 claim 1 ,3-butadiene (isoprene) claim 1 , 1 claim 1 ,3-butadiene claim 1 , 1 claim 1 ,3-pentadiene (piperylene) claim 1 , or a combination thereof.6. The composition of claim 1 , wherein the diene is unconjugated and cyclic.7. The composition of claim 6 , wherein the diene is ethylidene norbornene claim 6 , vinyl norbornene claim 6 , dicyclopentadiene claim 6 , norbornadiene claim 6 , 1 claim 6 ,5 cyclooctadiene claim 6 , or a combination thereof.8. The composition of claim 1 , wherein the diene is unconjugated and non-cyclic.9. The composition of claim 8 , wherein the diene is 1 claim 8 ,4 hexadiene claim 8 , 1 claim 8 ,6 octadiene claim 8 , 1 claim 8 ,8 decadiene claim 8 , or a combination thereof.10. The composition of claim 1 , wherein the double bond is at one carbon away from the terminal carbon of the pendant double bond.11. The composition of claim 1 , wherein the first styrene is 0.5 mole % to 40 mole % of the composition based on the ...

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Номер записи: 10
01-02-2018 дата публикации

Hydrogenated block copolymer

Номер: US20180030194A1
Автор: Daisuke Konishi, Hiromitsu Sasaki, Masahiro Kato, Yosuke Uehara
Принадлежит: Amyris Inc, Kuraray Co Ltd

A hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, a polymer block (B) containing a structural unit derived from farnesene, and a polymer block (C) containing a structural unit derived from a conjugated, diene except farnesene, wherein the block copolymer contains at least two above polymer blocks (A), at least one above polymer block (B) and at least one above polymer block (C), and wherein at least one above polymer block (B) is at the terminal, and the hydrogenation rate of the carbon-carbon double bond in the polymer block (B) and the polymer block (C) is 50 mol % or more.

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Номер записи: 11
31-01-2019 дата публикации

Method for manufacturing copolymer and rubber composition containing the same

Номер: US20190031796A1
Автор: Jae Young KO, June Park
Принадлежит: Korea Kumho Petrochemical Co Ltd

According to an embodiment of the present invention, there is provided a method of preparing a copolymer which includes (a) polymerizing an aromatic vinyl monomer and a conjugated diene-based monomer in the presence of a solvent, a first randomizing agent, and a catalyst to prepare a first copolymer including the aromatic vinyl monomer in an amount of 15 to 40 wt %; and (b) reacting the first copolymer with one or more of a second randomizing agent different from the first randomizing agent and an additional aromatic vinyl monomer to prepare a second copolymer.

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Номер записи: 12
04-02-2021 дата публикации

Butyl Rubber Additives for Improved Tire Tread Performance

Номер: US20210032389A1
Автор: Blok Edward J., Dias Anthony J., Nguyen Paul T.Q., Wurzinger Erick E.
Принадлежит:

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 70 phr of styrene/butadiene copolymer; about 0 to about 20 phr of natural rubber or polyisoprene; about 0 to about 30 phr of a processing oil; about 10 to about 30 phr of a hydrocarbon resin; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a butyl copolymer rubber containing about 85 to about 99.5 mol % C-Cisoolefin(s) and from about 0.5 to about 15 mol % C-Cconjugated dienes. 1. An elastomeric composition comprising , per 100 parts by weight of rubber (phr):about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%;about 40 to about 70 phr of a styrene/butadiene copolymer;about 0 to about 20 phr of natural rubber or polyisoprene;about 0 to about 30 phr of a processing oil;about 10 to about 30 phr of a hydrocarbon resin;about 50 to about 75 phr of a filler;a curative agent;an antioxidant; and{'sub': 4', '7', '4', '14, 'about 5 to about 40 phr of a butyl copolymer rubber containing about 85 to about 99.5 mol % C-Cisoolefins and from about 0.5 to about 15 mol % C-Cconjugated dienes.'}2. The elastomeric composition of claim 1 , wherein the filler is a silica-based filler.3. The elastomeric composition of claim 1 , wherein the filler is a carbon black filler.4. The elastomeric composition of claim 1 , wherein the filler is blend of a silica-based filler and a carbon black filler.5. The elastomeric composition of claim 1 , wherein the butyl rubber is isobutylene-isoprene rubber.6. The elastomeric composition of claim 1 , wherein the butyl copolymer rubber further comprises a styrene based monomer.7. The elastomeric composition of claim 6 , wherein the styrene is methyl-styrene.8. The elastomeric composition of claim 1 , wherein the ...

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Номер записи: 13
24-02-2022 дата публикации

RUBBER COMPOSITION

Номер: US20220056251A1
Автор: ARAUJO DA SILVA José-Carlos, CROCHET Aurore, HENNEBERT Guillaume
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

The invention relates to a rubber composition which comprises an elastomer which is a copolymer of ethylene and of a 1,3-diene which comprises ethylene units which represent more than 50 mol % of the monomer units of the copolymer, the 1,3-diene being 1,3-butadiene or isoprene, 35 to 100 phr of a reinforcing filler which comprises a silica, a plasticizing system comprising a hydrocarbon plasticizing resin and a hydrocarbon liquid plasticizing agent, it being understood that the total content of hydrocarbon plasticizing resin and of hydrocarbon liquid plasticizing agent is greater than 10 phr and less than or equal to 80 phr. Such a composition confers on a tread of a tire an improved performance compromise between grip, roadholding and rolling resistance. 1. A rubber composition which comprises:an elastomer which is a copolymer of ethylene and of a 1,3-diene which comprises ethylene units which represent more than 50 mol % of the monomer units of the copolymer, the 1,3-diene being 1,3-butadiene or isoprene,35 to 100 phr of a reinforcing filler which comprises a silica,a plasticizing system comprising a hydrocarbon plasticizing resin and a liquid hydrocarbon plasticizing agent, wherein the total content of the hydrocarbon plasticizing resin and of the liquid hydrocarbon plasticizing agent is greater than 10 phr and less than or equal to 80 phr.2. The rubber composition according to claim 1 , in which the ethylene units in the copolymer represent more than 60 mol % of the monomer units of the copolymer.4. The rubber composition according to claim 3 , in which the molar percentages of the units of formula (I) and of the units of formula (II-1) in the copolymer claim 3 , respectively o and p claim 3 , satisfy the following equation (eq. 1) claim 3 , o and p being calculated on the basis of all the monomer units of the copolymer{'br': None, 'i': 'o+p≤', '#text': '0<25 \u2003\u2003(eq. 1),'}5. The rubber composition according to claim 1 , in which the copolymer is a ...

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Номер записи: 14
07-02-2019 дата публикации

Pressure-Sensitive Adhesive, and Self-Adhesive Products and Composites Comprising the Latter

Номер: US20190040285A1
Автор: Dollase Thilo, OSTERWINTER Gregor
Принадлежит:

The invention relates to a block copolymer-containing pressure-sensitive adhesive comprising e) 52% by weight to 65% by weight, preferably 55% by weight to 62% by weight, of an elastomer component, f) 30% by weight to 45% by weight, preferably 35% by weight to 42% by weight, of at least one bonding resin, g) 0% by weight to 15% by weight, preferably to 10% by weight, of at least one softening resin and h) 0% by weight to 18% by weight, preferably to 10% by weight, of further additives, where the elastomer component (a) consists to an extent of at least 90% by weight of polyvinylaromatic-polybutadiene block copolymers, where the polyvinylaromatic-polybutadiene block copolymers include at least one type of diblock copolymer (a1) and at least one type of tri- or multiblock copolymer (a2), the at least one diblock copolymer (a1) has a vinylaromatic content of 15% by weight to 45% by weight, within the elastomer component (a) the proportion of tri- or multiblock copolymer (a2) is between 25% by weight and 50% by weight, preferably between 30% by weight and 45% by weight, the tri- or multiblock copolymer (a2) has a molar mass of at least 125 000 g/mol and a vinylaromatic content of 15% to 45% by weight, and one kind of the tri- or multiblock copolymer is preferably a multi-arm (radial) block copolymer. 1. A block copolymer-containing pressure-sensitive adhesive comprising:a) 52 wt % to 65 wt %, of an elastomer component,b) 30 wt % to 45 wt %, of at least one tackifier resin,c) 0 wt % to 15 wt %, of at least one plasticizing resin, and wherein the elastomer component (a) is at least 90 wt % of polyvinylaromatic-polybutadiene block copolymers, the polyvinylaromatic-polybutadiene block copolymers comprising at least one kind of a diblock copolymer (a1) and at least one kind of a triblock or multiblock copolymer (a2),', 'the at least one diblock copolymer (a1) has a vinylaromatic fraction of 15 wt % to 45 wt %, within the elastomer component (a) the fraction of triblock or ...

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Номер записи: 15
16-02-2017 дата публикации

Diluent for the production of butyl rubber

Номер: US20170044283A1
Автор: Gilles Arsenault, Steven John TEERTSTRA
Принадлежит: Arlanxeo Canada Inc, Arlanxeo Singapore Pte Ltd

Methods are provided to efficiently produce butyl rubber via a slurry polymerization process. The process comprises providing at least two monomers, wherein at least one monomer is an isoolefin and at least one monomer is a multiolefin. The monomers are combined with an initiator and an organic diluent comprising 40-60 volume % of methyl chloride and 40-60 volume % of 1,1,1, 2-tetrafluoroethane and polymerized.

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Номер записи: 16
07-02-2019 дата публикации

Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery

Номер: US20190044148A1
Автор: Norikazu Yamamoto
Принадлежит: Zeon Corp

Provided is a binder composition for a non-aqueous secondary battery electrode that enables formation of an electrode for a non-aqueous secondary battery that has excellent peel strength and can cause a non-aqueous secondary battery to display excellent cycle characteristics. A binder composition according to a first aspect contains a particulate polymer A1 that includes an aliphatic conjugated diene monomer unit in a proportion of 70 mass % to 99 mass % and a carboxylic acid group-containing monomer unit in a proportion of 1 mass % to 30 mass %. A binder composition according to a second aspect contains a particulate polymer A2 that includes an aliphatic conjugated diene monomer unit in a proportion of 70 mass % to 95 mass % and a (meth)acrylic acid ester monomer unit in a proportion of 1 mass % to 30 mass %, and that has a degree of swelling in electrolyte solution of a factor of 1.2 to 7.0.

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Номер записи: 17
13-02-2020 дата публикации

DIELECTRIC COMPOSITE AND USES THEREOF

Номер: US20200053877A1
Автор: HUNG Chin-Hsien, Liu Chang-Chih, LIU Shur-Fen, YANG Wei-Jung
Принадлежит:

A dielectric composite is provided. The dielectric composite includes: 1. A dielectric composite , comprising:at least one first dielectric layer; andat least one second dielectric layer,wherein the first dielectric layer has a thermal coefficient of dielectric constant (TCDk) not higher than −150 ppm/° C., and the second dielectric layer has a TCDK not lower than 50 ppm/° C.; andthe dielectric composite has a dielectric constant (Dk) not lower than 4 and a TCDk ranging from 0 to −150 ppm/° C.2. The dielectric composite of claim 1 , wherein the first dielectric layer has a TCDk not higher than −200 ppm/° C. claim 1 , the second dielectric layer has a TCDK not lower than 100 ppm/° C. claim 1 , and the dielectric composite has a TCDK ranging from −55 to −105 ppm/° C.3. The dielectric composite of claim 1 , wherein the first dielectric layer and the second dielectric layer are prepared by a first dielectric composition and a second dielectric composition claim 1 , respectively claim 1 , and the first dielectric composition and the second dielectric composition independently comprise a thermal-curable resin and an inorganic filler.4. The dielectric composite of claim 3 , wherein the thermal-curable resin is selected from the group consisting of an epoxy resin claim 3 , thermal-curable phenol novolac claim 3 , thermal-curable polyamino-formaldehyde claim 3 , thermal-curable silicone claim 3 , thermal-curable polyethylene claim 3 , thermal-curable polypropylene claim 3 , thermal-curable polytetrafluoroethylene (PTFE) claim 3 , thermal-curable polyphenylene ether claim 3 , and combinations thereof.5. The dielectric composite of claim 3 , wherein the inorganic filler is selected from the group consisting of aluminum silicate claim 3 , silica claim 3 , aluminum oxide claim 3 , magnesium oxide claim 3 , magnesium titanate claim 3 , magnesium hydroxide claim 3 , calcium carbonate claim 3 , talc claim 3 , clays claim 3 , aluminum nitride claim 3 , boron nitride claim 3 , ...

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Номер записи: 18
21-02-2019 дата публикации

METHOD OF MAKING A FUNCTIONALIZED ELASTOMER

Номер: US20190055334A1
Автор: LEICHT Hannes, Mecking Stefan, SCHNETMANN Inigo Gottker genannt, VIELHABER Margaret Flook
Принадлежит:

The present invention is directed to a method of making an amine functionalized elastomer, comprising the steps of polymerizing at least one first monomer selected from the group consisting of 1,3-butadiene and isoprene and a second monomer of formula I in the presence of a polymerization catalyst in a hydrocarbon solvent to form a first copolymer in solution; 2. The method of claim 1 , wherein the protic solvent is methanol.3. The method of claim 1 , wherein the first monomer is 1 claim 1 ,3-butadiene.4. The method of claim 1 , wherein the monomer of formula I is (4-methylene-5-hexenyl)-bis(trimethylsilyl)amine.5. The method of claim 1 , wherein the second copolymer comprises from 75 to 99.5 percent by weight of units derived from the first monomer and from 0.5 to 25 percent by weight of units derived from the monomer of formula I.6. The method of claim 1 , wherein the second copolymer comprises from 90 to 99 percent by weight of units derived from the first monomer and from 1 to 10 percent by weight of units derived from the monomer of formula I.7. The method of claim 1 , wherein the second copolymer comprises at least 90 percent by weight of cis 1 claim 1 ,4 microstructure content based on the weight of the polybutadiene content of the copolymer.8. The method of claim 1 , wherein the second copolymer comprises at least 95 percent by weight of cis 1 claim 1 ,4 microstructure content based on the weight of the polybutadiene content of the copolymer.9. A rubber composition comprising the second copolymer made by the method of .10. A pneumatic tire comprising the rubber composition of .11. The method of claim 1 , wherein the catalyst is a lanthanide-based coordination polymerization catalyst.12. The method of claim 10 , wherein the lanthanide-based coordination polymerization catalyst is a neodymium based catalyst.13. The method of claim 1 , wherein the catalyst is a nickel based catalyst. Stereoregular polymers like polypropylene and polydienes are produced on a ...

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Номер записи: 19
18-03-2021 дата публикации

RUBBER COMPOSITIONS WITH DISAGGREGATED CARBON NANOTUBES

Номер: US20210079204A1
Автор: KHRIPIN Constantine, MEHLEM Jeremy John, PAPPAS Christopher
Принадлежит:

Rubber compositions having a base masterbatch, the base masterbatch comprising a diene rubber and a solid agglomerated material comprising disaggregated carbon nanotubes consisting of a continuous network of carbon nanotubes, the continuous network comprising 1) voids and 2) aggregates of carbon nanotubes having a d50 mean size of less than 5 μm, the voids and the aggregates together being in an amount that is less than 60% of a predetermined surface area, such percentage as determined by electron microscopy image analysis, the remainder being the disaggregated carbon nanotubes in the continuous network that do not comprise a clearly defined shape and being in an amount that is at least 40% of the predetermined surface area, wherein the base masterbatch has a minimum Mooney viscosity ML(1+4)100 of at least 85 MU; and a cure system. 1. A rubber composition based upon a cross-linkable rubber composition , the cross-linkable rubber composition comprising , in parts per 100 parts by weight of rubber:{'sub': '50', 'a masterbatch comprising a base masterbatch, the base masterbatch comprising a diene rubber and a solid agglomerated material comprising disaggregated carbon nanotubes consisting of a continuous network of carbon nanotubes, the continuous network comprising 1) voids and 2) aggregates of carbon nanotubes having a dmean size of less than 5 μm, the voids and the aggregates together being in an amount that is less than 60% of a predetermined surface area, such percentage as determined by electron microscopy image analysis, the remainder being the disaggregated carbon nanotubes in the continuous network that do not comprise a clearly defined shape and being in an amount that is at least 40% of the predetermined surface area, wherein the base masterbatch has a minimum Mooney viscosity ML(1+4)100 of at least 85 MU; and'}a cure system.2. The rubber composition of claim 1 , wherein the masterbatch has the minimum Mooney viscosity.3. The rubber composition of claim 2 , ...

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Номер записи: 20
14-03-2019 дата публикации

TREATMENT OF EPOXIDIZED UNSATURATED ISOOLEFIN COPOLYMERS

Номер: US20190077889A1
Автор: CROCKETT Treena, DAVIDSON Gregory J. E., Guo Sharon, NGUYEN Paul
Принадлежит: ARLANXEO Singapore Pte. Ltd.

A process for producing a crosslinked polymer involves contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent. A process for producing a hydroxylated unsaturated isoolefin copolymer involves contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent. A hydroxylated unsaturated isoolefin copolymer having hydroxyl groups in endo configurations may be produced thereby. 1. A process for producing a crosslinked polymer , the process comprising contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent.2. The process according to claim 1 , wherein the add has a pKa of about 1 or lower.3. The process according to claim 2 , wherein the contacting is performed at a temperature of about 20° C. to about 100°.4. The process according to claim 2 , wherein the acid comprises a sulfonic acid such as for example p-toluenesulfonic acid.5. The process according to claim 1 , wherein the acid has a pKa of greater than about 1.6. The process according to claim 5 , wherein the contacting is performed at a temperature of about 160° C. to about 250° C.7. A process for producing a hydroxylated unsaturated isoolefin copolymer claim 5 , the process comprising contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent.8. The process according to claim 7 , wherein the add has a pKa of greater than about 1.9. The process according to claim 8 , wherein the contacting is performed at a temperature of about 60° C. to about 180° C.12. The process according to claim 5 , wherein the acid is produced in situ with production of the epoxidized unsaturated isoolefin copolymer in an absence of a solvent.13. The process according to claim 1 , wherein the catalytic amount is about 0.01-10 phr.14. The process according to claim 1 , wherein the isoolefin copolymer ...

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Номер записи: 21
26-03-2015 дата публикации

COPOLYMER, RUBBER COMPOSITION USING SAME, AND TIRE

Номер: US20150087763A1
Автор: Hirata Kei, KODA Daisuke
Принадлежит:

The present invention relates to a copolymer including a monomer unit (a) derived from isoprene and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing isoprene with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof. 1. A copolymer , comprising;a monomer unit (a) derived from isoprene, anda monomer unit (b) derived from farnesene.2. The copolymer according to claim 1 , wherein the monomer unit (b) is a monomer unit derived from β-farnesene.3. The copolymer according to claim 1 , wherein a mass ratio of the monomer unit (a) to a sum of the monomer unit (a) and the monomer unit (b) in the copolymer is from 1 to 99% by mass.4. The copolymer according to claim 1 , wherein the copolymer has a molecular weight distribution Mw/Mn of from 1.0 to 4.0.5. The copolymer according to claim 1 , wherein the copolymer has a weight average molecular weight Mw of from 2 claim 1 ,000 to 500 claim 1 ,000.6. The copolymer according to claim 1 , wherein the copolymer has a melt viscosity of from 0.1 to 3 claim 1 ,000 Pa·s as measured at 38° C.7. The copolymer according to claim 1 , wherein the copolymer is produced by a process comprising conducting an anionic polymerization in the presence of an organic metal initiator.8. A process for producing the copolymer according to claim 1 , the process comprising: copolymerizing isoprene with farnesene.9. A rubber composition claim 1 , comprising (A) the copolymer according to ; (B) a rubber component; and (C) carbon black.10. A rubber composition claim 1 , comprising (A) the copolymer according to ; (B) a rubber component; and (D) silica.11. A rubber ...

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Номер записи: 22
12-03-2020 дата публикации

HYDROGENATED BLOCK COPOLYMER

Номер: US20200079890A1
Автор: Kato Masahiro, Konishi Daisuke, SASAKI Hiromitsu, UEHARA Yosuke
Принадлежит:

A hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, a polymer block (B) containing a structural unit derived from farnesene, and a polymer block (C) containing a structural unit derived from a conjugated diene except farnesene, wherein the block copolymer contains at least two above polymer blocks (A), at least one above polymer block (B) and at least one above polymer block (C), and wherein at least one above polymer block (B) is at the terminal, and the hydrogenation rate of the carbon-carbon double bond in the polymer block (B) and the polymer block (C) is 50 mol % or more. 1. An elastic member produced by molding a thermoplastic elastomer composition comprising a hydrogenated block copolymer (I) , wherein:the hydrogenated block copolymer (I) is a hydrogenate of a block copolymer (P) comprising:a polymer block (a) comprising a structural unit derived from an aromatic vinyl compound, a polymer block (b) comprising 1 to 100% by mass of a farnesene-derived structural unit (b1) and 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, and a polymer block (c) having a content of the farnesene-derived structural unit (b1) of less than 1% by mass and a content of the structural unit (b2) derived from a conjugated diene other than farnesene of 1 to 100% by mass,and comprising at least two of the polymer blocks (a), at least one of the polymer block (b) and at least one of the polymer block (c), wherein at least one of the polymer block (b) exists at the terminal, and wherein:a ratio by mass of the polymer block (a) to the polymer block (b) [(a)/(b)] is from 1/99 to 70/30, a ratio by mass of the polymer block (a) to a total of the polymer block (b) and the polymer block (c) [(a)/((b)+(c))] is from 1/99 to 70/30,50 mol % or more of a total of carbon-carbon double bonds derived from farnesene and carbon- ...

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Номер записи: 23
25-03-2021 дата публикации

Rubber composition

Номер: US20210087316A1
Автор: Anne-Frédérique Salit, Anne-Lise Thuilliez, Celine Ledoux
Принадлежит: Compagnie Generale des Etablissements Michelin SCA

A rubber composition based at least on a functional elastomer and a reinforcing filler which comprises a carbon black is provided. The functional elastomer is a diene elastomer which comprises diene units in the cis-1,4 configuration and pendant groups of formula (I). The Y 1 , Y 2 , Y 3 and Y 4 symbols, which are identical or different, represent an atom or a group of atoms, and at least one of the symbols denotes an attachment to a diene unit of the elastomer. The diene units in the cis-1,4 configuration represent at least 90 mol % of the diene units of the functional elastomer, and the carbon black represents more than 50% by weight of the reinforcing filler.

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Номер записи: 24
21-03-2019 дата публикации

MONOMERS AND POLYMERS FORMED THEREBY

Номер: US20190084915A1
Автор: Ball-Jones Nicolas, Fahnhorst Grant W., Hoye Thomas R.
Принадлежит:

Monomers, polymers, or oligomers formed therefrom and methods of forming or utilizing monomers of formula I 2. The polymer according to claim 1 , wherein Ris a methyl group claim 1 , an ethyl group claim 1 , a propyl group claim 1 , an n-butyl group claim 1 , or a t-butyl group.3. The polymer according to claim 1 , wherein X is —OR.4. The polymer according to claim 3 , wherein Ris a Cto Calkyl.5. The polymer according to claim 3 , wherein Ris 2-ethylhexyl.6. The polymer according to claim 3 , wherein Ris a hydrocarbon moiety of bio-renewable alcohol or a hydrogenated derivative thereof.7. The polymer according to claim 1 , wherein X is OM.8. The polymer according to claim 1 , wherein the monomer according to formula I is polymerized with a secondary monomer not of formula I.9. The polymer according to claim 1 , wherein the precursor monomer is co-polymerized with the acid of the precursor monomer.10. The polymer according to claim 1 , wherein the polymer is crosslinked.11. The polymer according to claim 1 , wherein the polymer is a hydrogel and can hold at least about 100 times its weight in water.12. The polymer according to claim 8 , wherein the secondary monomer is selected from isoprene claim 8 , butadiene claim 8 , styrene claim 8 , sorbic acid (or its alkali metal salts) claim 8 , a sorbate ester claim 8 , (meth)acrylic acid (or its alkali metal salts) claim 8 , (meth)acrylate ester claim 8 , or combinations thereof.14. The method according to further comprising precipitating or crystallizing the mixture to form a solid substance.15. The method according to further comprising polymerizing the mixture and crosslinking the polymer.17. The monomer of claim 17 , wherein the monomer is of formula III and Y is a linker group commonly used in a bis-acrylate or bis-methacrylate crosslinking agent typically utilized in acrylate or methacrylate polymerization reactions.18. The monomer of claim 17 , wherein the monomer is of formula III and Y is —(CHCHO)—CHCH claim 17 , ...

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Номер записи: 25
26-03-2020 дата публикации

A TIRE COMPRISING A TREAD

Номер: US20200094622A1
Автор: MORIYAMA MASAHIKO, SAKURADA TOMOYA
Принадлежит:

A tire has a tread comprising a rubber composition based on at least: an elastomer matrix; a reinforcing filler; a plasticizing agent; and particles; wherein the tread comprises: a tread surface; a sequence of basic pattern(s), wherein each basic pattern has a width (Wm) over at least 80% of the width (W) of the tread, each basic pattern has a pitch (P), and each basic pattern comprises a plurality of raised elements, one or more of which are provided with sipes opening onto the tread surface, wherein each sipe has a width of less than 1 mm and a depth of at least 3 mm; wherein the tread has a sipe density (SD) defined as (I), the SD being less than 60 μm/mm; where i is the number of sipe(s) in the pattern, lis the length of the i sipe on the tread surface. 127.-. (canceled)29. The tire according to claim 28 , wherein the elastomer matrix comprises at least a diene elastomer selected from the group consisting of polybutadienes claim 28 , synthetic polyisoprenes claim 28 , natural rubber claim 28 , butadiene copolymers claim 28 , isoprene copolymers claim 28 , and mixtures thereof.30. The tire according to claim 28 , wherein the elastomer matrix comprises 20 to 100 phr of a first diene elastomer bearing at least one SiOR function claim 28 , R being a hydrogen atom or a hydrocarbon radical claim 28 , and optionally claim 28 , 0 to 80 phr of a second diene elastomer which is different from the first diene elastomer.31. The tire according to claim 30 , wherein the first diene elastomer is a styrene-butadiene copolymer.32. The tire according to claim 30 , wherein the SiOR function is located at the chain end of the first diene elastomer.33. The tire according to claim 30 , wherein R of the SiOR function is a hydrogen atom.34. The tire according to claim 30 , wherein the first diene elastomer has a glass transition temperature of lower than −40°.35. The tire according to claim 30 , wherein the second diene elastomer is selected from the group consisting of polybutadienes ...

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Номер записи: 26
26-03-2020 дата публикации

TIRE WITH TREAD

Номер: US20200094623A1
Автор: Isitman Nihat Ali, Martter Teresa Diane, Murray Aaron Patrick, Sandstrom Paul Harry
Принадлежит:

This invention relates to a tire with a tread of a rubber composition containing a combination of high and low glass transition temperature (Tg) synthetic elastomers. The high Tg elastomer is comprised of a high Tg, high vinyl content, functionalized polybutadiene rubber and the low Tg elastomer is comprised of a low Tg, low vinyl content, functionalized polybutadiene rubber. The tread rubber may contain traction resins, may contain rosin acid and may contain triglyceride vegetable rubber processing oil. 1. A pneumatic tire having a circumferential rubber tread of a rubber composition containing precipitated silica reinforcement comprised of , based on parts by weight per 100 parts by weight elastomer (phr): (1) about 20 to about 80 phr of a functionalized high Tg, high vinyl polybutadiene rubber having a Tg in a range of from about −40° C. to about −10° C. and an isomeric vinyl 1,2-content in a range of from about 65 to about 85 percent, where said functionalized high vinyl polybutadiene rubber contains functional groups reactive with hydroxyl groups on said precipitated silica reinforcement,', '(2) about 80 to about 20 phr of a functionalized low Tg, low vinyl polybutadiene rubber having a Tg in a range of from about −108° C. to about −90° C. and an isomeric vinyl 1,2-content in a range of from about 0 to about 15 percent, where said functionalized low vinyl polybutadiene rubber contains functional groups reactive with hydroxyl groups on said precipitated silica reinforcement, provided that the weight ratio of low vinyl to high vinyl functionalized polybutadiene rubber is at least 1/1 and alternately at least 1.5/1,, '(A) 100 phr of conjugated diene-based elastomers comprised of;'}(B) about 60 to about 200 phr of rubber reinforcing filler comprised of a combination of precipitated silica (amorphous synthetic precipitated silica) and rubber reinforcing carbon black in a weight ratio of precipitated silica to rubber reinforcing carbon black of at least 9/1, together ...

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Номер записи: 27
26-03-2020 дата публикации

Copolymer of 1, 3, 7-octatriene and styrene, hydride thereof, and method for producing said copolymer

Номер: US20200095359A1
Автор: Shuichi Sunaga, Takashi Hori, Tomoaki Tsuji, Yasutaka Inubushi
Принадлежит: Kuraray Co Ltd

The present invention provides a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from styrene and a hydride thereof. Furthermore, the present invention provides a method of producing a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from styrene.

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Номер записи: 28
12-04-2018 дата публикации

HIGH-GRADE MASTIC ASPHALT COMPOSITION AND PAVING CONSTRUCTION METHOD USING THE SAME

Номер: US20180100066A1
Автор: KIM IN JOONG
Принадлежит:

A high-grade mastic asphalt composition includes by weight: 100 parts of a natural asphalt mix; 5 to 40 parts of styrene isoprene styrene; 10 to 60 parts of at least one polymer resin; 10 to 1,000 parts of an aggregate; 1 to 20 parts of a thermosensitive reinforcing agent; 10 to 60 parts of a filler; 10 to 40 parts of a nanoceramic particle; 1 to 15 parts of a surfactant; 0.1 to 5 parts of an antioxidant; 0.5 to 5 parts of a stabilizer; 0.5 to 10 parts of a performance enhancer; 2 to 20 parts by weight of a fiber; 10 to 50 parts of a cohesive resin; 2 to 10 parts of an antisagging agent; and 1 to 5 parts of a compatibilizer. The consolute high-grade mastic asphalt composition has a high pavement performance and makes its conveyance and paving construction easier without using a cooker. 1. A high-grade mastic asphalt composition comprising:100 parts by weight of a natural asphalt mix;5 to 40 parts by weight of styrene isoprene styrene;10 to 60 parts by weight of at least one polymer resin selected from the group consisting of vinyl ester resin, polyester resin, acryl resin, epoxy resin, acryl-epoxy resin, and urethane resin;10 to 1,000 parts by weight of an aggregate;1 to 20 parts by weight of a thermosensitive reinforcing agent;10 to 60 parts by weight of a filler;10 to 40 parts by weight of a nanoceramic particle;1 to 15 parts by weight of a surfactant;0.1 to 5 parts by weight of an antioxidant;0.5 to 5 parts by weight of a stabilizer;0.5 to 10 parts by weight of a performance enhancer;2 to 20 parts by weight of a fiber;10 to 50 parts by weight of a cohesive resin;2 to 10 parts by weight of an antisagging agent;1 to 5 parts by weight of a compatibilizer;5 to 30 parts by weight of a glycidyl methacrylate (GMA)-based resin with respect to 100 parts by weight of the natural asphalt mix;0.1 to 5 parts by weight of bentonite with respect to 100 parts by weight of the natural asphalt mix;1 to 5 parts by weight of calcium aluminate with respect to 100 parts by weight of ...

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Номер записи: 29
19-04-2018 дата публикации

METHOD FOR THE SYNTHESIS OF A COPOLYMER CONTAINING IMIDAZOLE PENDANT GROUPS

Номер: US20180105630A1
Автор: Loubat Cedric, MATMOUR Rachid, RANNOUX Claire
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

A process for synthesizing a copolymer bearing imidazole pendant groups is provided. The process comprises the radical copolymerization of a monomer mixture comprising a terminal olefin and a functional monomer bearing a (meth)acryloyl group and an imidazole group. 1. A process for synthesizing a copolymer bearing imidazole pendant groups , which process comprises radical copolymerization of a monomer mixture comprising a terminal olefin and a functional monomer bearing a (meth)acryloyl group and an imidazole group.2. A process according to claim 1 , in which the radical copolymerization is a statistical copolymerization.3. A process according to claim 1 , in which the terminal olefin is ethylene claim 1 , a conjugated diene or the mixture thereof.4. A process according to claim 3 , in which the conjugated diene is butadiene claim 3 , isoprene or the mixture thereof.5. A process according to claim 1 , in which the monomer mixture consists of the terminal olefin and the functional monomer.6. A process according to claim 1 , in which the monomer mixture additionally comprises another monomer having an ethylenic double bond.7. A process according to claim 6 , in which the terminal olefin is ethylene claim 6 , and the other monomer having an ethylenic double bond is a vinyl ester of carboxylic acid having 1 to 4 carbon atoms.8. A process according to claim 6 , in which the terminal olefin is a conjugated diene claim 6 , and the other monomer having an ethylenic double bond is a vinylaromatic compound having from 8 to 20 carbon atoms.9. A process according to claim 1 , in which the monomer mixture before polymerization comprises between 50 mol % and 99.9 mol % of terminal olefin.10. A process according to claim 1 , in which the monomer mixture before polymerization comprises between 0.1 mol % and 50 mol % of functional monomer.11. A process according to claim 1 , in which the monomer mixture before polymerization comprises between 0.1 mol % and 20 mol % of functional ...

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Номер записи: 30
02-04-2020 дата публикации

TIRE PROVIDED WITH AN OUTER SIDEWALL CONTAINING A COMPOSITION COMPRISING A CRUMB RUBBER

Номер: US20200101793A1
Автор: KALLUNGAL ABDUL JALEEL Muhamed Jesbeer, TREGOUET PIERRE
Принадлежит:

A tire is provided with an outer sidewall, said outer sidewall comprising at least a rubber composition based on at least an elastomer, a reinforcing filler, a crosslinking system and more than 25 phr of a crumb rubber. 123.-. (canceled)24. A tire provided with an outer sidewall , the outer sidewall comprising at least a rubber composition based on at least an elastomer , a reinforcing filler , a crosslinking system and more than 25 phr of a crumb rubber.25. The tire according to claim 24 , wherein the crumb rubber is present in a content extending from more than 25 to 100 phr.26. The tire according to claim 25 , wherein the crumb rubber is present in a content extending from 40 to 90 phr.27. The tire according to claim 24 , wherein the crumb rubber has an acetone extract of between 3% and 30% by weight.28. The tire according to claim 24 , wherein the crumb rubber has a chloroform extract of between 5% and 85% by weight.29. The tire according to claim 24 , wherein the crumb rubber has a morphology modified by a treatment selected from the group consisting of thermal claim 24 , mechanical claim 24 , biological and chemical treatments and combinations thereof.30. The tire according to claim 29 , wherein the crumb rubber has an acetone extract of between 5% and 20% by weight.31. The tire according to claim 29 , wherein the crumb rubber has a chloroform extract of between 15% and 85% by weight.32. The tire according to claim 29 , wherein the crumb rubber has a ratio of a chloroform extract to an acetone extract claim 29 , expressed as weight percentage claim 29 , of greater than or equal to 1.5.33. The tire according to claim 29 , wherein the crumb rubber has a chloroform extract of which the weight-average molecular weight is greater than 10 claim 29 ,000 g/mol.34. The tire according to claim 29 , wherein the crumb rubber has a Mooney viscosity of between 40 and 90.35. The tire according to claim 24 , wherein the crumb rubber has not undergone any modification by a ...

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Номер записи: 31
09-06-2022 дата публикации

METHOD OF EPOXIDATION

Номер: US20220177693A1
Автор: Hutchings Lian Richard
Принадлежит:

The present invention concerns block and/or tapered block copolymers comprising pendant hydrocarbyl, trisubstituted epoxide-containing moieties, and methods of preparing these and their precursors. The invention also concerns curable compositions comprising such copolymers as modified solution styrene butadiene rubbers and silica and/or carbon black and articles formed from curing these formulations. Such articles may be tyres. 1. A method comprising effecting an epoxidation reaction on a first copolymer , to provide a second copolymer comprising epoxide groups , wherein the first copolymer is a block and/or tapered block copolymer which is derived from at least three different types of monomer and comprises a backbone from which hydrocarbyl , trisubstituted ethylene-containing moieties are pendant.2. The method of claim 1 , wherein the first copolymer is a terpolymer.3. The method of claim 1 , wherein the first copolymer is a copolymer of myrcene claim 1 , trans-β-farnesene claim 1 , trans-β-ocimene and/or cis-β-ocimene.4. The method of claim 1 , wherein the first copolymer is a copolymer of butadiene claim 1 , styrene optionally substituted at one or more positions with a C-Caliphatic or aromatic hydrocarbyl claim 1 , isoprene claim 1 , and/or 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene.5. The method of claim 4 , wherein the styrene optionally substituted at one or more positions with a C-Caliphatic or aromatic hydrocarbyl is styrene claim 4 , 4-methylstyrene claim 4 , α-methylstyrene claim 4 , para claim 4 ,α-dimethylstyrene claim 4 , and/or 1 claim 4 ,1-diphenylethylene.6. The method of claim 1 , wherein the first copolymer is a copolymer of butadiene claim 1 , styrene and/or isoprene.7. The method of claim 1 , wherein the first copolymer is a copolymer of butadiene and/or styrene.8. The method of claim 7 , wherein the first copolymer is a copolymer of butadiene.9. The method of claim 1 , wherein the first copolymer is a copolymer of butadiene claim 1 , styrene ...

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Номер записи: 32
17-07-2014 дата публикации

Method for preparing dialkyl magnesium compounds by ethylene polymerisation and uses thereof

Номер: US20140200313A1
Автор: Andre Mortreux, Marc Visseaux, Thomas Chenal
Принадлежит: Universite De Lille 1 Sciences Et Technologies

A process for the preparation by ethylene polymerization of at least one dialkyl magnesium compound of formula R—(CH 2 —CH 2 ) n —Mg—(CH 2 —CH 2 ) m —R′ in which R and R′, identical or different, represent aryl, benzyl, allyl or alkyl groups and in which the integers n and m, identical or different, represent average —CH 2 —CH 2 — chain formation numbers greater than 1, the process including a single stage of mixing the following components: at least one ligand or one ligand precursor, at least one rare earth salt, at least one dialkyl magnesium compound of formula R—Mg—R′, and ethylene, in a medium allowing contact between the components of the above mixture.

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Номер записи: 33
25-04-2019 дата публикации

END GROUP FUNCTIONALIZATION AGENTS FOR POLYDIENE

Номер: US20190119409A1
Автор: Kang Dong Eun, Kwag Gwanghoon, Lee Hanbaek, Sadow Aaron David, Schmidt Bradley M.
Принадлежит:

The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): 13. The process of claim 12 , wherein the catalyst is a mixture of (A) a compound of Formula MA; (B) a halogen containing compound; and (C) an organometallic compound claim 12 , wherein Mis a lanthanide metal; Ais Ccarboxylate.14. The process of claim 12 , wherein the catalyst is a mixture of (A) a compound of Formula M(HA)A; (B) a halogen containing compound; and (C) an organometallic compound claim 12 , wherein Mis a lanthanide metal; Ais Ccarboxylate.15. The process of claim 12 , wherein the catalyst is a compound of Formula Li-Alk claim 12 , wherein Alk is Calkyl.16. The process of claim 12 , wherein the catalyst is a compound of Formula (III): MC(SiHAlk)(R)(III) claim 12 , wherein M is a lanthanide or a transition metal; Alk is Calkyl; Ris halide claim 12 , bis(oxazolinato) claim 12 , carboxylate claim 12 , acetyl acetonate claim 12 , amidate claim 12 , alkoxide claim 12 , amide claim 12 , BR claim 12 , AlR claim 12 , or alkyl aluminate; Ris independently selected at each occurrence thereof from the group consisting of H claim 12 , CF claim 12 , phenyl claim 12 , and Calkyl.20. The process of claim 12 , wherein the modified polymer has 1 claim 12 ,4-cis content of 15 to 99%.21. The process of claim 12 , wherein the modified polymer has more than 90% cis-content.22. The process of claim 12 , wherein the modified polymer has a molecular weight of 10 claim 12 ,000 to 4 claim 12 ,000 claim 12 ,000.23. The process of claim 12 , wherein the modified polymer has a Mooney viscosity of 10 to 100.28. The process of claim 24 , wherein the polymer has a 1 claim 24 ,4-cis content of 15 to 99%.29. The process of claim 24 , wherein the polymer is a polymer of 1 claim 24 ,3-butadiene claim 24 , isoprene claim 24 , 2 claim 24 ,3-dimethyl-1 claim 24 ,3-butadiene claim 24 , 1 claim 24 ,3-pentadiene claim 24 , 1 claim 24 ,3-hexadiene claim 24 , or myrcene.30. The process of ...

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Номер записи: 34
23-04-2020 дата публикации

Rubber Composition

Номер: US20200123365A1
Автор: CHOI Jae Sun, Jun Jae Moon, Kim Jin Young, Kim No Ma, KIM Yu Jin, Na Youk Reol
Принадлежит: LG CHEM, LTD.

The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile properties and viscoelasticity properties by controlling compatibility among rubber components, and a tire manufactured using the same. 1. A rubber composition comprising:a first synthetic rubber;a second synthetic rubber: anda filler,wherein a solubility parameter difference between the first synthetic rubber and the second synthetic rubber is greater than 0.6,the first synthetic rubber is a solution-polymerized conjugated diene-based rubber which has a styrene bond content of 30 wt % or more, andthe second synthetic rubber is a lithium-catalyzed modified butadiene-based rubber in which a functional group is bonded to at least one terminal.2. The rubber composition according to claim 1 , wherein the solubility parameter difference between the first synthetic rubber and the second synthetic rubber is greater than 0.8 and less than or equal to 1.1.3. The rubber composition according to claim 1 , wherein the solution-polymerized conjugated diene-based rubber has the styrene bond content of 38 wt % or more and 55 wt % or less.4. The rubber composition according to claim 1 , wherein the solution-polymerized conjugated diene-based rubber comprises a repeating unit derived from a conjugated diene-based monomer and a repeating unit derived from an aromatic vinyl-based monomer.5. The rubber composition according to claim 1 , wherein the first synthetic rubber is a modified conjugated diene-based rubber in which a functional group is bonded to at least one terminal.6. The rubber composition according to claim 1 , wherein the second synthetic rubber has a vinyl bond content in a polymer of 50 wt % or less.7. The rubber composition according to claim 1 , wherein the rubber composition comprises 30 parts by weight to 90 parts by weight of the first synthetic rubber; 10 parts by weight to 70 parts by weight of the second synthetic rubber; and 30 parts by weight to 200 ...

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Номер записи: 35
10-06-2021 дата публикации

END GROUP FUNCTIONALIZATION AGENTS FOR POLYDIENE

Номер: US20210171672A1
Автор: Kang Dong Eun, Kwag Gwanghoon, Lee Hanbaek, Sadow Aaron David, Schmidt Bradley M.
Принадлежит:

The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): 17.-. (canceled)1234.-. (canceled)4144.-. (canceled)45. The process of claim 40 , wherein the modified polymer has 1 claim 40 ,4-cis content of 15 to 99%.46. The process of claim 40 , wherein the modified polymer has more than 90% cis-content.47. The process of claim 40 , wherein the modified polymer has a molecular weight of 10 claim 40 ,000 to 4 claim 40 ,000 claim 40 ,000.48. The process of claim 40 , wherein the modified polymer has a Mooney viscosity of 10 to 100.50. The process of claim 49 , wherein the polymer has a 1 claim 49 ,4-cis content of 15 to 99%.51. The process of claim 49 , wherein the polymer is a polymer of 1 claim 49 ,3-butadiene claim 49 , isoprene claim 49 , 2 claim 49 ,3-dimethyl-1 claim 49 ,3-butadiene claim 49 , 1 claim 49 ,3-pentadiene claim 49 , 1 claim 49 ,3-hexadiene claim 49 , or myrcene.52. The process of claim 49 , wherein the polymer is a polymer of isoprene.53. The process of claim 49 , wherein the polymer is a polymer of butadiene54. A modified polymer prepared by the process of .55. A composition comprising:{'claim-ref': {'@idref': 'CLM-00049', 'claim 49'}, 'a modified polymer prepared according to and'}a filler blended with said modified polymer.56. The composition of claim 49 , wherein the filler is carbon black or silica.57. A rubber composition comprising:a natural rubber;{'claim-ref': {'@idref': 'CLM-00049', 'claim 49'}, 'a modified polymer prepared by the process of ; and'}a filler. This application claims the priority benefit of U.S. Provisional Patent Application Ser. No. 62/574,963, filed Oct. 20, 2017, which is hereby incorporated by reference in its entirety.The present invention relates to an end group functionalization agents for polydiene.Since fuel economies and the need to preserve the environment have become priorities, the tire industry has been challenged to design tires that have improved rolling resistance ...

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Номер записи: 36
10-06-2021 дата публикации

Triblock Copolymer Concentrates for Lubricating Oil Compositions

Номер: US20210171853A1
Автор: Briggs Stuart, Galbraith Ewan, Jun Cui, Zhao Yi
Принадлежит:

A VM concentrate comprising: from about 60 to about 95 parts (and at least 50 wt %) of a diluent oil (e.g., having a KV100 of about 2 cSt to about 40 cSt); and from about 5 parts to about 40 parts (and at least 6.0 wt %) of a linear triblock copolymer characterized by the formula: D′-PA-D″; wherein D′ represents a block derived from diene, PA represents a block derived from monoalkenyl arene, D″ represents a block derived from diene, and the linear triblock copolymer is present in an amount effective to modify a lubricating kinematic viscosity at approximately 100° C. (KV100) of the concentrate, and wherein the KV100 of the concentrate is about 3000 cSt or less. The linear triblock copolymer may additionally or alternatively have a thickening efficiency span of at most 0.5. 2. A concentrate according to claim 1 , wherein the D′ and D″ dienes each individually comprise butadiene claim 1 , isoprene claim 1 , and mixtures thereof claim 1 , but are not identical to each other claim 1 , and wherein the D′ and D″ blocks am substantially hydrogenated after polymerization.3. A concentrate according to claim 1 , wherein the D′ and D″ dienes each individually comprise:(i) not more than about 3 wt % butadiene;(ii) at least about 97 wt % isoprene;(iii) both (i) and (ii).4. A concentrate according to claim 1 , wherein D′ has a number average molecular weight from about 62 claim 1 ,000 Daltons to about 150 claim 1 ,000 Daltons claim 1 , PA has a number average molecular weight from about 15 claim 1 ,000 Daltons to about 50 claim 1 ,000 Daltons claim 1 , and D″ has a number average molecular weight from about 5 claim 1 ,000 to about 80 claim 1 ,000 daltons.5. A concentrate according to claim 4 , wherein:(i) D′ has a number average molecular weight from about 63,000 Daltons to about 95,000 Daltons;(ii) PA has a number average molecular weight from about 20,000 Daltons to about 36,000 Daltons; or(iii) both (i) and (ii).6. A concentrate according to claim 4 , wherein a ratio of PA ...

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Номер записи: 37
15-09-2022 дата публикации

Rubber composition and tire

Номер: US20220289950A1
Автор: Kyohei Kotani, Takafumi Asakura, Yasuhiro SHODA
Принадлежит: Bridgestone Corp

Provided is rubber composition that can improve wear resistance and cutting resistance while having good fuel efficiency when applied to a tire. The rubber composition contains a rubber component containing natural rubber and/or synthetic isoprene rubber, and syndiotactic 1,2-polybutadiene, where the syndiotactic 1,2-polybutadiene has a crystal content of 7 J/g to 40 J/g and a number-average molecular weight of 6.5×104 or more.

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Номер записи: 38
16-05-2019 дата публикации

METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

Номер: US20190144587A1
Автор: BANDO Fumiaki
Принадлежит: ZEON CORPORATION

The present invention is a method for producing a conjugated diene random copolymer comprising polymerizing at least a conjugated diene monomer using a living radical polymerization method to produce a conjugated diene polymer that comprises a halogen atom at a terminal of a polymer chain, a living radical polymerization reaction being initiated using a copper salt, a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom, and an organic halide, to produce the conjugated diene polymer having a number average molecular weight (Mn) of 1,000 to 1,000,000 and a molecular weight distribution (Mw/Mn) of less than 2.0. The present invention provides a method for efficiently and inexpensively producing a conjugated diene polymer that includes a halogen atom at the terminal of the polymer chain, and has the desired molecular weight and a narrow molecular weight distribution. 1. A method for producing a conjugated diene random copolymer comprising polymerizing a conjugated diene monomer and α ,β-ethylenically unsaturated monomer copolymerizable with the conjugated diene monomer using a living radical polymerization method to produce a conjugated diene random copolymer that comprises a halogen atom at a terminal of a polymer chain , a living radical polymerization reaction being initiated using a copper salt , a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom , and an organic halide , to produce the conjugated diene random copolymer having a number average molecular weight (Mn) of 1 ,000 to 1 ,000 ,000 and a molecular weight distribution (Mw/Mn) of less than 2.0.2. The method for producing a conjugated diene random copolymer according to claim 1 , wherein the number of coordinating atoms included in the multidentate ligand is 2 to 4.3. The method for producing a conjugated diene random copolymer according to claim 1 , wherein the multidentate ligand comprises two or more ...

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Номер записи: 39
16-05-2019 дата публикации

RUBBER COMPOSITION FOR TIRES, AND PNEUMATIC TIRE USING THE SAME

Номер: US20190144645A1
Автор: TAKEDA Keiji
Принадлежит: TOYO TIRE & RUBBER CO., LTD.

A rubber composition for tires is provided, which is capable of improving fuel efficiency and wet grip performance, and also a pneumatic tire using the same. A rubber composition for tires, including a rubber component, an inorganic filler, and a thermoplastic elastomer containing a functional group that reacts or interacts with a surface functional group of the inorganic filler and having a specific gravity of 1.00 or less. 1. A rubber composition for tires , comprising:a rubber component;an inorganic filler; anda thermoplastic elastomer containing a functional group that reacts or interacts with a surface functional group of the inorganic filler and having a specific gravity of 1.00 or less.2. The rubber composition for tires according to claim 1 , wherein the thermoplastic elastomer is a block copolymer having polystyrene as a hard segment.3. The rubber composition for tires according to claim 1 , wherein the functional group contained in the thermoplastic elastomer is at least one member selected from the group consisting of a hydroxyl group claim 1 , an amino group claim 1 , a carboxyl group claim 1 , a silanol group claim 1 , an alkoxysilyl group claim 1 , an epoxy group claim 1 , a glycidyl group claim 1 , a polyether group claim 1 , a polysiloxane group claim 1 , and a maleic anhydride-derived functional group.4. The rubber composition for tires according to claim 2 , wherein the functional group contained in the thermoplastic elastomer is at least one member selected from the group consisting of a hydroxyl group claim 2 , an amino group claim 2 , a carboxyl group claim 2 , a silanol group claim 2 , an alkoxysilyl group claim 2 , an epoxy group claim 2 , a glycidyl group claim 2 , a polyether group claim 2 , a polysiloxane group claim 2 , and a maleic anhydride-derived functional group.5. The rubber composition for tires according to claim 2 , wherein the thermoplastic elastomer has a styrene content of 20 mass % or more.6. The rubber composition for tires ...

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Номер записи: 40
07-05-2020 дата публикации

Rubber composition and pneumatic tire containing benzofulvene copolymer

Номер: US20200140674A1
Автор: Derek Shuttleworth, William Paul Francik
Принадлежит: Goodyear Tire and Rubber Co

The invention is directed to a rubber composition comprising a block copolymer of a conjugated diene monomer and benzofulvene, and a pneumatic tire comprising the rubber composition.

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Номер записи: 41
17-06-2021 дата публикации

MODIFIED NATURAL RUBBER, RUBBER COMPOSITION USING THE RUBBER, AND PNEUMATIC TIRE USING THE COMPOSITION

Номер: US20210179824A1
Автор: NAKASHIMA Daiki
Принадлежит: Toyo Tire Corporation

A modified natural rubber has a branching degree of 0.40 to 0.70 and includes a linking structure represented by formula (C), the linking structure having been formed by allowing polyisoprene, having a structure represented by formula (A) and/or formula (B), to bind in the structure to an amino compound having two or more primary amino groups: 2. The modified natural rubber according to claim 1 , wherein the polyisoprene has an absolute molecular weight of 200 claim 1 ,000 to 600 claim 1 ,000 claim 1 , and the modified natural rubber has an absolute molecular weight of 1 claim 1 ,000 claim 1 ,000 to 3 claim 1 ,000 claim 1 ,000.3. The modified natural rubber according to claim 1 , wherein the amino compound comprises an amino compound having three or more primary amino groups.4. The modified natural rubber according to claim 2 , wherein the amino compound comprises an amino compound having three or more primary amino groups.5. The modified natural rubber according to claim 1 , wherein the amino compound comprises tris(2-aminoethyl)amine.6. The modified natural rubber according to claim 2 , wherein the amino compound comprises tris(2-aminoethyl)amine.7. The modified natural rubber according to claim 3 , wherein the amino compound comprises tris(2-aminoethyl)amine.8. The modified natural rubber according to claim 4 , wherein the amino compound comprises tris(2-aminoethyl)amine.9. A rubber composition comprising 5 to 50 parts by mass of the modified natural rubber according to in 100 parts by mass of a rubber component.10. A rubber composition comprising 5 to 50 parts by mass of the modified natural rubber according to in 100 parts by mass of a rubber component.11. A rubber composition comprising 5 to 50 parts by mass of the modified natural rubber according to in 100 parts by mass of a rubber component.12. A rubber composition comprising 5 to 50 parts by mass of the modified natural rubber according to in 100 parts by mass of a rubber component.13. A rubber composition ...

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Номер записи: 42
18-06-2015 дата публикации

MODIFIED HIGH CIS BUTADIENE-ISOPRENE COPOLYMER, METHOD FOR PRODUCING THE SAME AND TIRE HAVING AFOREMENTIONED POLYMER

Номер: US20150166707A1
Автор: Kuo Hung-Jui, Lee Chih-Cheng
Принадлежит:

A modified high cis butadiene-isoprene copolymer, a method for producing the same, and a tire having the aforementioned polymer are provided. The method includes performing a polymerization step for forming a high cis butadiene-isoprene copolymer having an organometallic active site and reacting which copolymer with a modifier mixture via the organometallic active site for forming the modified high cis butadiene-isoprene copolymer. The modifier mixture comprises a first modifier and a second modifier. The first modifier has a chemical formula of X—R1-Si(R2), wherein X is an glycidoxy functional group, an isocyanate functional group, or a 2-(3,4-epoxycyclohexyl group), R1 is an alkylene group, and R2 is an alkyl group or an alkoxy group. The second modifier has a chemical formula of R3-Si(R4), wherein R3 is an alkoxy group or an aryloxy group, and R4 is an alkyl group, an alkoxy group, an aryloxy group or a cycloalkyl group. 1. A method for producing a modified high cis butadiene-isoprene copolymer , comprising: rare earth metal-organic carboxylate;', {'sub': 3', '2, 'organoaluminum compound having a formula of AlRor HAlR, wherein R is alkyl group with 1˜8 carbon atoms; and'}, 'halogen donor comprising alkylaluminum halide; and, 'performing a polymerization step for forming a high cis butadiene-isoprene copolymer having an organometallic active site, wherein the organometallic active site is formed of an organometallic catalytic system, the organometallic catalytic system comprisingreacting the high cis butadiene-isoprene copolymer having the organometallic active site with a modifier mixture via the organometallic active site;wherein the modifier mixture comprises a first modifier and a second modifier;{'sub': '3', 'the first modifier has a chemical formula of X—R1-Si(R2), wherein X is an glycidoxy functional group, an isocyanate functional group, or a 2-(3,4-epoxycyclohexyl group), R1 is an alkylene group with 2˜3 carbon atoms, and R2 is an alkyl group with 2˜3 ...

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Номер записи: 43
24-06-2021 дата публикации

Synthesis of isoprene-butadiene copolymer rubbers

Номер: US20210189040A1
Автор: Thomas Franklin Spilker
Принадлежит: Goodyear Tire and Rubber Co

It has been unexpectedly found that certain neodymium catalyst systems can be used to copolymerize isoprene and 1,3-butadiene to produce random isoprene-butadiene copolymer rubbers which are not tapered. These random isoprene-butadiene copolymer rubbers have properties which are beneficial for use in rubber formulations for manufacturing a wide variety of rubber products, such as tires, hoses, conveyor belts, power transmission belts, and shoe soles. These random isoprene-butadiene rubbers are synthesized by copolymerizing (a) isoprene monomer or a substituted isoprene monomer and (b) 1,3-butadiene monomer in the presence of a neodymium catalyst system, wherein the neodymium catalyst system is prepared by (1) reacting a neodymium carboxylate with an organoaluminum compound in the presence of a conjugated diolefin monomer to produce neodymium-aluminum catalyst component, and (2) subsequently reacting the neodymium-aluminum catalyst component with an alkyl aluminum chloride to produce the neodymium catalyst system.

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Номер записи: 44
30-05-2019 дата публикации

RUBBER COMPOSITION FOR TIRE

Номер: US20190160870A1
Автор: ONO Shuichiro
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

A tread assuring less temperature dependency of on-ice performance and good wet grip performance and a studless tire composed of the rubber composition includes a rubber component comprising an isoprene rubber, a terpene resin and a branched conjugated diene copolymer, wherein the branched conjugated diene copolymer is prepared by copolymerizing a branched conjugated diene compound represented by the general formula (1): 2. The rubber composition for a tread of claim 1 , wherein the terpene resin is at least one selected from the group consisting of a terpene-phenol resin and a terpene-styrene resin.3. The rubber composition for a tread of claim 1 , comprising 1 to 20 parts by mass of the terpene resin and 1 to 20 parts by mass of the branched conjugated diene copolymer based on 100 parts by mass of the rubber component.4. The rubber composition for a tread of claim 1 , wherein the branched conjugated diene compound (1) is myrcene and/or farnesene.5. The rubber composition for a tread of claim 1 , wherein the conjugated diene compound (2) is 1 claim 1 ,3-butadiene and/or isoprene.6. A studless tire having a tread composed of the rubber composition for a tread of . The present invention relates to a rubber composition for a tread and a studless tire having a tread manufactured using the rubber composition.One of important performances required for a studless tire is, for example, braking performance on ice. An adhesive friction, hysteresis friction and scratching friction (digging-up friction) are known as dominant friction factors between a tread rubber and a road surface.For increasing a friction force between a tread rubber and an iced road surface, so far a method of increasing an area coming into contact with a road surface by decreasing a rubber hardness at low temperature in consideration of an adhesive friction, a method of increasing a hysteresis loss of a rubber in consideration of a hysteresis friction, and a method of increasing a friction force of a ...

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Номер записи: 45
30-05-2019 дата публикации

TERMINAL-MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, RUBBER PRODUCT AND METHOD FOR MANUFACTURING TERMINAL-MODIFIED CONJUGATED DIENE POLYMER

Номер: US20190161571A1
Автор: Kaita Shojiro, TAKANO Shigenaga, YAMAGATA Yusuke
Принадлежит: BRIDGESTONE CORPORATION

An object of the present disclosure is to provide a terminal-modified conjugated diene polymer having a high cis-1,4 content and a low molecular weight distribution value and being excellent in durability (such as wear resistance, fracture resistance, cracking resistance, and the like). In order to achieve the object, a terminal-modified conjugated diene polymer of the present disclosure characteristically has: molecular weight distribution determined by gel permeation chromatography (GPC) of less than 2; and content of cis-1,4 bond of 95% or more. 1. A terminal-modified conjugated diene polymer , wherein it has: molecular weight distribution determined by gel permeation chromatography (GPC) of less than 2; and content of cis-1 ,4 bond of 95% or more.2. The terminal-modified conjugated diene polymer of claim 1 , wherein the terminal-modified conjugated diene polymer has the molecular weight distribution of 1.7 or less.3. The terminal-modified conjugated diene polymer of claim 1 , wherein conjugated diene polymer constituting the terminal-modified conjugated diene polymer is polybutadiene or polyisoprene.4. The terminal-modified conjugated diene polymer of claim 1 , wherein the terminal-modified conjugated diene polymer is a reaction product of polymerization of a conjugated diene compound by using a polymerization catalyst composition and subsequent modification of a terminal of a polymer prepared by the polymerization claim 1 , andthe polymerization catalyst composition contains: a rare earth element compound; a coordinative compound having a cyclopentadiene skeleton selected from the group consisting of substituted/non-substituted cyclopentadiene, substituted/non-substituted indene, and substituted/non-substituted fluorene; an ionic compound constituted of a non-coordinating anion and a cation; and aluminoxane.5. A rubber composition claim 1 , including the terminal-modified conjugated diene polymer of .6. A rubber product claim 5 , using the rubber composition of ...

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Номер записи: 46
21-05-2020 дата публикации

FUNCTIONAL COPOLYMER CONSISTING OF A 1,3-DIENE AND AN OLEFINE

Номер: US20200157268A1
Автор: "DAgosto Franck", Boisson Christophe, LAFAQUIERE VINCENT, MACQUERON Benoît, PEHLIVAN Leyla, Thuilliez Julien
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

A copolymer of a 1,3-diene and of an olefin selected from the group consisting of α-monoolefins, ethylene and mixtures thereof is provided. The copolymer bears, at one of its chain ends, an alkoxysilyl or silanol function, functional group F, and the copolymer is different from a copolymer of a 1,3-diene and a vinylaromatic monomer. 1. A copolymer of a 1 ,3-diene and of an olefin selected from the group consisting of α-monoolefins , ethylene and mixtures thereof , which copolymer bears , at one of its chain ends , an alkoxysilyl or silanol function , functional group F , and the copolymer is different from a copolymer of a 1 ,3-diene and a vinylaromatic monomer.2. The copolymer according to claim 1 , in which the functional group Fis of formula (II-a) or formula (II-b):{'br': None, 'sup': 1', '2, 'sub': 3-f', 'f, 'Si(OR)(R)\u2003\u2003(II-a)'}{'br': None, 'sup': '2', 'sub': '2', 'Si(OH)(R),\u2003\u2003(II-b)'}in which:{'sup': '1', 'the Rsymbols, which are identical or different, represent an alkyl,'}{'sup': 2', '2, 'the Rsymbols, which are identical or different, represent a hydrogen atom, a hydrocarbon chain or a hydrocarbon chain substituted by a chemical function F,'}f is an integer ranging from 0 to 2.3. The copolymer according to claim 2 , in which the Rsymbols represent an alkyl having at most 6 carbon atoms.4. The copolymer according to claim 2 , in which the Rsymbols represent an alkyl having at most 6 carbon atoms or an alkanediyl chain having at most 6 carbon atoms and substituted by a chemical function F.5. The copolymer according claim 2 , in which the alkyl represented by the Rand Rsymbols is a methyl or an ethyl.6. The copolymer according to claim 2 , in which the chemical function Fis a primary claim 2 , secondary or tertiary amine function or a thiol function claim 2 , the primary or secondary amine or thiol function being protected by a protecting group or being unprotected.7. The copolymer according to claim 6 , in which the protecting group is a ...

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Номер записи: 47
01-07-2021 дата публикации

PROCESS FOR PREPARING RANDOM BUTADIENE-ISOPRENE COPOLYMERS HAVING A HIGHT CONTENT OF CIS-1,4 UNITS

Номер: US20210198404A1
Автор: Di Martino Silvana, Perretta Costantino
Принадлежит:

Process for preparing a random butadiene-isoprene copolymer having a high content of cis-1,4 units comprising copolymerizing butadiene and isoprene, in the presence of at least one organic solvent, and a catalytic system prepared in situ comprising: (a) at least one neodymium carboxylate soluble in said organic solvent, containing a variable amount of water, the H2O/Nd molar ratio being between 0.001/1 and 0.50/1; (a) at least one aluminum alkyl compound; (a) at least one aluminum alkyl compound containing at least one halogen atom. The random butadiene-isoprene copolymer having a high content of cis-1,4 units obtained from the abovementioned process may be advantageously used in a number of applications ranging from the modification of plastics [for example, obtainment of high impact polystyrene (HIPS)], to the production of tires, in particular the production of tire treads and/or of tire sidewalls. 1. A process for the preparation a random butadiene-isoprene copolymer having a high content of cis-1 ,4 units comprising copolymerizing butadiene and isoprene in the presence of at least one organic solvent and of a catalytic system prepared in situ comprising:{'sub': 1', '2, '(a) at least one neodymium carboxylate which is soluble in said organic solvent, containing a variable amount of water, the HO/Nd molar ratio being between 0.001/1 and 0.50/1;'}{'sub': '2', '(a) at least one aluminum alkyl compound;'}{'sub': '3', '(a) at least one aluminum alkyl compound containing at least one halogen atom.'}2. The process for the preparation of a random butadiene-isoprene copolymer having a high content of cis-1 claim 1 ,4 units according to claim 1 , in which said butadiene and said isoprene are present in a total amount (i.e. butadiene amount+isoprene amount) between 5% by weight and 40% by weight with respect to the total weight of the organic solvent.3. The process for the preparation of a random butadiene-isoprene copolymer having a high content of cis-1 claim 1 ,4 units ...

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Номер записи: 48
21-06-2018 дата публикации

DIENE RUBBER/POLYPROPYLENE THERMOPLASTIC ELASTOMER COPOLYMER, COMPOSITIONS CONTAINING SAME, AND PREPARATION METHOD

Номер: US20180170106A1
Автор: DRONET SEVERIN, Thuilliez Julien
Принадлежит:

The present invention relates to comb block copolymers, combining an elastomeric backbone and rigid pendent blocks and thus having thermoplastic elastomer properties. The invention targets in particular comb block copolymers which may be used as a material as is. 1. A diene/polypropylene thermoplastic elastomer copolymer , comprising a backbone , said backbone being derived from a diene elastomer , and from 5% to 50% by weight , relative to the total weight of the copolymer , pendent semicrystalline polypropylene groups distributed along the backbone.2. A thermoplastic elastomer copolymer according to claim 1 , wherein the semicrystalline polypropylene groups are grafted to the backbone.3. A thermoplastic elastomer copolymer according to claim 2 , wherein the copolymer is obtained by reaction:of a diene elastomer A comprising pendent functional groups along said elastomer, which are able to react with an end group of the polypropylene; andof semicrystalline polypropylene functionalized by an end group able to react with the pendent functional groups of the diene elastomer A.4. A thermoplastic elastomer copolymer according to claim 3 , wherein the pendent functional groups along said diene elastomer A claim 3 , which are able to react with the end group of the polypropylene claim 3 , are epoxide groups.5. A thermoplastic elastomer copolymer according to claim 3 , wherein the diene elastomer A is the product of the copolymerization of at least one conjugated diene monomer and at least one monomer bearing one of said pendent functional groups.6. A thermoplastic elastomer copolymer according to claim 3 , wherein the diene elastomer A is the product of the functionalization by grafting of a diene elastomer B.7. A thermoplastic elastomer copolymer according to claim 6 , wherein the pendant functional groups of the diene elastomer A are epoxide groups claim 6 , and the epoxide groups are attached to the diene elastomer A via a silicon atom.9. A thermoplastic elastomer ...

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Номер записи: 49
23-07-2015 дата публикации

Surface-active comb copolymers

Номер: US20150203619A1
Автор: Barbel Gertzen, Bernd Göbelt, Dorothee Greefrath, Jürgen OMEIS, René NAGELSDIEK
Принадлежит: BYK Chemie GmbH

The invention relates to a copolymer whose overall structure as such and/or an optionally present segment A having at least 10 bivalent structural units in the overall structure contains surface-active bivalent structural units present in the form of long hydrocarbon chains among other forms. The copolymer is effective as a universal surface-active additive, especially also in conjunction with nonpolar media.

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Номер записи: 50
19-07-2018 дата публикации

METHOD FOR INDUSTRIAL PRODUCTION OF TRANS-BUTADIENE-ISOPRENE COPOLYMER RUBBER AND APPARATUS THEREFOR

Номер: US20180201714A1
Автор: He Aihua, Liu Chenguang, Luan Bo, MA Yunsheng, SHAO Huafeng, WANG Riguo, Yao Gang
Принадлежит:

A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized. 1. A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1 ,4-structure , the method is as below:{'sup': '−5', '(1) after the polymerization apparatus is vacuumed and the water and oxygen within is replaced fully by the nitrogen, the refined isoprene monomer, butadiene monomer, cocatalyst, electron donor, primary catalyst and hydrogen are sent to the polymerization reactor in order successively according to the predetermined dosage respectively through the batching device, the mole ratio of titanium and/or vanadium element within the primary catalyst to monomer is (0.01˜100)×10:1, the mole ratio of Al element in the co-catalysts to the titanium and/or vanadium element within the main catalyst is 1˜200:1, the mole ratio of hydrogen to the titanium and/or vanadium element within the main catalyst is 1˜2000:1, the copolymerization temperature is 20˜100° C., the feed mole ratio of butadiene to isoprene is 0.01˜50:100, the mole ratio of electron donor to the titanium and/or vanadium element within the main ...

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Номер записи: 51
13-08-2015 дата публикации

COLORED PARTICLE FOR ELECTROWETTING DISPLAY, METHOD FOR PRODUCING COLORED PARTICLE FOR ELECTROWETTING DISPLAY, INK FOR ELECTROWETTING DISPLAY, AND ELECTROWETTING DISPLAY

Номер: US20150225500A1
Автор: NAGAHARA Yu, WAKIYA Takeshi
Принадлежит: Sekisui Chemical Co., Ltd.

Provided is a colored particle used for an electrowetting display that is capable of enhancing the dispersibility in an ink for an electrowetting display. In the colored particle for an electrowetting display according to the present invention, a surface of the particle is formed from a compound containing only a carbon atom and a hydrogen atom as constituent atoms or a surface of the particle is formed from a compound in which the total amount of a carbon atom, a hydrogen atom, an oxygen atom, a nitrogen atom, and a sulfur atom is 95% by mass or more relative to 100% by mass of total of constituent atoms, and the mass ratio of the amount of the carbon atom to the total amount of the oxygen atom, the nitrogen atom, and the sulfur atom is 5 or more. 1. A colored particle for an electrowetting display havinga surface that is formed from a compound containing only a carbon atom and a hydrogen atom as constituent atoms; ora surface that is formed from a compound in which the total amount of a carbon atom, a hydrogen atom, an oxygen atom, a nitrogen atom, and a sulfur atom is 95% by mass or more relative to 100% by mass of total of constituent atoms, and the mass ratio of the amount of the carbon atom to the total amount of the oxygen atom, the nitrogen atom, and the sulfur atom is 5 or more.2. The colored particle for an electrowetting display according to claim 1 , wherein a surface-forming material to form the particle surface is a polymer of a polymerization component containing at least one selected from the group consisting of styrene claim 1 , isoprene claim 1 , isobutylene claim 1 , 1-butene claim 1 , 1-pentene claim 1 , 1-hexene claim 1 , 1-octene claim 1 , and butadiene or a hydrogenated product of the polymer; or a polymer of alkyl (meth)acrylate having an alkyl group having 12 to 18 carbon atoms.3. The colored particle for an electrowetting display according to claim 2 , wherein the surface-forming material to form the particle surface is a polymer of a ...

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Номер записи: 52
12-08-2021 дата публикации

Rubber composition and tire therewith

Номер: US20210246299A1
Автор: Daisuke Koda, Eiichi Ishida, Hiroshi Kanbara, Kazuhiko Maekawa, Yusuke Amano
Принадлежит: Kuraray Co Ltd

The present invention provides a rubber composition having superior moldability, wear resistance, and grip performance, and tires therewith. The present invention relates to a rubber composition comprising: a copolymer (B) constituted of a vinyl alcohol polymer (B-1) region and a diene polymer (B-2) region; and a rubber component (C), wherein the rubber composition comprises 1 to 20 parts by mass of the copolymer (B) relative to 100 parts by mass of the rubber component (C).

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Номер записи: 53
23-10-2014 дата публикации

GRAFT POLYMER TO WHICH COMBINED NITROGEN MOLECULES ARE GRAFTED

Номер: US20140316057A1
Автор: Araujo Da silva José, Favrot Jean-Michel, Salit Anne Frédérique, Seeboth Nicolas
Принадлежит:

The present invention relates to a modified polymer obtained by grafting a compound comprising at least one group Q, and at least one group A bonded together by at least, and preferably, one “spacer” group Sp in which: 1. Modified polymer obtained by grafting a compound comprising at least one group Q , and at least one group A bonded together by at least , and preferably , one “spacer” group Sp in which:Q comprises an azo-dicarbonyl-containing group,A comprises an associative group comprising at least one nitrogen atom,Sp is an atom or a group of atoms forming a bond between Q and A.2. Modified polymer according to claim 1 , wherein the polymer is a diene elastomer.3. Modified polymer according to claim 1 , wherein the diene elastomer is essentially saturated claim 1 , preferably selected from copolymers of ethylene-propylene-diene monomer (EPDM) claim 1 , butyl rubbers.4. Modified polymer according to claim 1 , wherein the diene elastomer is essentially unsaturated claim 1 , preferably selected from natural rubber claim 1 , synthetic polyisoprenes claim 1 , isoprene copolymers and mixtures of these elastomers.5. Modified polymer according to claim 1 , wherein the associative group is selected from an imidazolidinyl claim 1 , triazolyl claim 1 , ureyl claim 1 , bis-ureyl and ureido-pyrimidyl group.7. Modified polymer according to claim 1 , wherein the modifying agent is represented by the formula (VII){'br': None, 'W—CO—N═N—CO-Sp-A\u2003\u2003(VII)'} A is an associative group comprising at least one nitrogen atom,', 'Sp is a divalent spacer group bonding the azodicarbonyl-containing functional group to the associative group A,', W represents', {'br': None, 'R′—Z—'}, 'a group of formula], 'W represents'}], 'in which Z represents an oxygen or sulphur atom or a group —NH or —NR′,', {'sub': 1', '20', '1', '6', '1', '4, 'R′ represents a C-Calkyl, preferably C-Calkyl, and most preferably C-Calkyl, group, for example methyl or ethyl,'}], 'in which {'br': None, '-Sp′-A′'}, ...

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Номер записи: 54
10-08-2017 дата публикации

METHODS FOR CONVERSION OF ETHANOL TO FUNCTIONALIZED LOWER HYDROCARBONS AND DOWNSTREAM HYDROCARBONS

Номер: US20170226028A1
Автор: Manzer Leo E., MCGUIRE Nicholas, SALAZAR Caroline, SJODIN Madeline, SMITH Jonathan O., Starkey Paul
Принадлежит: GEVO, INC.

This application relates to the production of functionalized lower hydrocarbons and more particularly to the process of converting ethanol to functionalized lower hydrocarbons. In particular embodiments, the ethanol to functionalized lower hydrocarbon conversion is catalyzed by a ZnZrAQMnOmixed oxide catalyst or a bifunctional heterogeneous catalyst. In particular embodiments, the ethanol to be converted is present at molar concentrations in the reactor feed equal to or exceeding 14%. 1. A process for preparing a functionalized lower hydrocarbon , comprising:(a) feeding to a reactor a reactor feed comprising ethanol at a concentration of at least about 14 mol %; and{'sub': x', 'y', 'v', 's', 'w', 'z, '(b) contacting the ethanol with a mixed oxide catalyst in the reactor, the mixed oxide catalyst having the formula ZnZrAQMnO, whereby the ethanol is converted to at least one functionalized lower hydrocarbon at a yield of at least about 30% of the maximum theoretical molar yield,'}wherein X is 1 to 10,wherein Y is 1 to 100,wherein A is Al, Si, Mg, or Cu, and V is 0 to 100,wherein Q is Al, Si, Mg, or Cu, and S is 0 to 100,wherein W is 0 to 30, andwherein Z is 5 to 250.2. The process of claim 1 , wherein the functionalized lower hydrocarbon is isobutylene.3. The process of claim 1 , wherein the functionalized lower hydrocarbon is propylene.4. The process of claim 1 , wherein the functionalized lower hydrocarbon is acetone.5. The process of claim 1 , further comprising step (c) of recovering at least one of the functionalized lower hydrocarbons.6. The process of claim 5 , wherein the functionalized lower hydrocarbon recovered in step (c) is isobutylene.7. The process of claim 5 , wherein the functionalized lower hydrocarbon recovered in step (c) is propylene.8. The process of claim 5 , wherein the functionalized lower hydrocarbon recovered in step (c) is acetone.9. The process of any of - claim 5 , wherein the ethanol is bio-based ethanol.10. The process of claim 9 , ...

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Номер записи: 55
18-07-2019 дата публикации

HYDROGENATED BLOCK COPOLYMER, VIBRATION DAMPER, SOUND INSULATOR, INTERLAYER FOR LAMINATED GLASS, DAM RUBBER, SHOE SOLE MATERIAL, FLOORING MATERIAL, LAMINATE, AND LAMINATED GLASS

Номер: US20190218389A1
Автор: Oshita Shinya, SENDA Yasushi
Принадлежит: KURARAY CO., LTD.

Provided is a hydrogenated block copolymer, which is a hydrogenation product of a block copolymer including a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene, the hydrogenated block copolymer being satisfied with the following requirements (1) and (2): 1: A hydrogenated block copolymer , which is a hydrogenation product of a block copolymer comprising a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene , the hydrogenated block copolymer being satisfied with the following requirements (1) and (2):Requirement (1): the content of the polymer block (A) in the block copolymer is from 1 to 30% by mass; andRequirement (2): when the polymer block (B) is regarded as having a structure with a hydrogenation rate of 100 mol %, an average value of a methylene chain length of a main chain of the structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene is from 1.0 to 6.0.2: The hydrogenated block copolymer according to claim 1 , wherein the hydrogenation rate in the polymer block (B) is from 80 to 99 mol %.3: The hydrogenated block copolymer according to claim 1 , wherein when the polymer block (B) has a structure with a hydrogenation rate of 100 mol % claim 1 , an average value of a substituent constant (ν) of a side chain which the main chain has per ethylene unit is from 0.25 to 1.1.45-. (canceled)6: The hydrogenated block copolymer according to claim 1 , wherein the conjugated diene compound is isoprene.7: The hydrogenated block copolymer ...

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Номер записи: 56
19-08-2021 дата публикации

LATEX COMPOSITION FOR DIP MOLDING AND DIP-MOLDED ARTICLE INCLUDING THE SAME

Номер: US20210253768A1
Автор: CHOUNG Sung Hun, JEON Jong Jin, YANG Kun-Ho
Принадлежит:

According to an exemplary embodiment of the present invention, provided is a latex composition for dip molding, which includes a copolymer latex formed by polymerizing an isoprene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein a dip-molded article made of the latex composition for dip molding exhibits a durability test result of 45 minutes or more. 1. A latex composition for dip molding , comprising a copolymer latex formed by polymerizing an isoprene monomer , an ethylenically unsaturated nitrile monomer , and an ethylenically unsaturated acid monomer ,wherein a dip-molded article made of the latex composition for dip molding exhibits a durability test result of 45 minutes or more:[Durability Test Method]A dip-molded article with a width of 30 mm, a length of 135 mm, and a thickness of 0.06 to 0.08 mm is elongated by 20% in a lengthwise direction and immersed in a solution set to 35° C. and pH 4.0 to pH 4.3, andthe molded article is elongated in a lengthwise direction for 10 seconds so that an elongation rate reaches 50%, maintained for 2 seconds, and then relaxed in a lengthwise direction for 10 seconds so that an elongation rate reaches 20%, and while repeating this process, the time taken for the molded article to be broken is measured.2. The latex composition of claim 1 , wherein the ethylenically unsaturated nitrile monomer is one or more selected from the group consisting of acrylonitrile claim 1 , methacrylonitrile claim 1 , fumaronitrile claim 1 , α-chloronitrile claim 1 , and α-cyanoethyl acrylonitrile.3. The latex composition of claim 1 , wherein the ethylenically unsaturated acid monomer is one or more selected from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , itaconic acid claim 1 , maleic acid claim 1 , fumaric acid claim 1 , maleic anhydride claim 1 , citraconic anhydride claim 1 , styrene sulfonate claim 1 , monobutyl fumarate claim 1 , monobutyl maleate claim ...

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Номер записи: 57
09-07-2020 дата публикации

Thermoplastic resin composition and moulded article with reduced rattling noise

Номер: US20200216657A1
Автор: Hiroyuki Nomura, Naruki TANAKA
Принадлежит: Techno UMG Co Ltd

A thermoplastic resin composition capable of providing a molded article which is inhibited from making rattling noise and preferably has high rigidity is provided, which comprises a rubber-reinforced resin (A) having a rubber portion (a1) derived from a block copolymer, or hydrogenated product thereof; and a resin portion (a2) comprising a structural unit derived from an aromatic vinyl compound. The block copolymer includes a block (I) having a structural unit derived from an aromatic vinyl compound, and a block (II) having a structural unit derived from isoprene or from isoprene and butadiene, and having a main dispersion peak of tan δ at no less than 0° C. The thermoplastic resin composition has a maximum value of sound pressure of 3.0 Pa/N or less over a frequency range of 20-20,000 Hz measured under predetermined conditions.

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Номер записи: 58
23-08-2018 дата публикации

Method for producing thermoplastic polymer composition

Номер: US20180236704A1
Автор: Shinya Oshita, Yoshio Hirayama, Yosuke Jogo
Принадлежит: Kuraray Co Ltd

Provided is a method in which a polyisobutylene having a peak top molecular weight (Mp) of 5,000 to 80,000 is easily supplied to a hydrogenated block copolymer to stably produce a thermoplastic polymer composition. Specifically, provided is a method for producing a thermoplastic polymer composition containing a hydrogenated block copolymer (a) and a polyisobutylene (b) having a peak top molecular weight (Mp) of 5,000 to 80,000 expressed in terms of standard polystyrene as determined by gel permeation chromatography, the method including a following first step and a following second step. First step: a step of supplying the polyisobutylene (b) to a twin-screw/single-screw extruder of a counter-rotating type, to plasticize the polyisobutylene (b). Second step: a step including a following step (i) and a following step (ii): (i) a step of supplying the hydrogenated block copolymer (a) to a twin-screw extruder; and (ii) a step of supplying the polyisobutylene (b) plasticized in the first step to the twin-screw extruder via a quantitative pump and kneading the polyisobutylene (b) together with the hydrogenated block copolymer (a) supplied in the step (i).

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Номер записи: 59
01-08-2019 дата публикации

PREFORMED CATALYTIC SYSTEM COMPRISING A RARE-EARTH METALLOCENE

Номер: US20190233566A1
Автор: LAFAQUIERE VINCENT, Thuilliez Julien
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

A catalytic system based at least on isoprene as preformation monomer, on a metallocene of formula {P(Cp)(Cp)Y} and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, Cpand Cp, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P being a group bridging the two Cpand Cpgroups and comprising a silicon or carbon atom, is provided. Such a catalytic system is soluble and exhibits an increased stability of the catalytic activity over time, in particular on storage. 1. A catalytic system based at least:on isoprene as preformation monomer,on a metallocene of formula (I), {'br': None, 'sup': 1', '2, '{P(Cp)(Cp)Y}\u2003\u2003(I)'}, 'on an organometallic compound as cocatalyst,'}Y denoting a group comprising a metal atom which is a rare earth metal,{'sup': 1', '2, 'Cpand Cp, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted,'}{'sup': 1', '2, 'P being a group bridging the two Cpand Cpgroups and comprising a silicon or carbon atom.'}2. A catalytic system according to claim 1 , in which the cocatalyst is an organomagnesium compound.3. A catalytic system according to claim 1 , in which the cocatalyst is an organometallic compound comprising an alkyl group bonded to the metal atom.4. A catalytic system according to claim 1 , in which the cocatalyst is a dialkylmagnesium compound or an alkylmagnesium halide.5. A catalytic system according to claim 1 , in which Cpand Cpare identical and are selected from the group consisting of substituted fluorenyl groups and the unsubstituted fluorenyl group of formula CH.6. A catalytic system according to claim 1 , in which Cpand Cpeach represent an unsubstituted fluorenyl group of formula CH.7. A catalytic ...

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Номер записи: 60
23-07-2020 дата публикации

Isobutylene Copolymers, Method for Making Isobutylene Copolymers and Isobutylene Copolymer Products

Номер: US20200231724A1
Автор: Gobin Andre M., Hopson James A., KUMAR Rajeev, Macatangay Peggy J., Nutt Michael O., PAPPAS George, Redd Randall V.
Принадлежит:

Isobutylene copolymer includes repeat units derived from isobutylene and one or more comonomers selected from isoprene, butadiene, cyclopentadiene, dicyclopentadiene, limonene, substituted styrenes, and C4 to C10 dienes other than isoprene, butadiene, limonene, cyclopentadiene, or dicyclopentadiene, wherein the molar ratio of isobutylene derived repeat units to the comonomer derived repeat units is from 75:1 to 1.5:1. The copolymers have a molecular weight, Mn, of from 200 to 20,000 Daltons and typically have a high double bond content and a high vinylidene double bond content when diene monomers are utilized. 151-. (canceled)53. The method according to claim 52 , wherein the reactor is maintained at a temperature of up to 35° C.54. The method according to claim 53 , wherein the reactor is maintained at a temperature of 5° C. or above.55. The method according to claim 54 , wherein the reactor is maintained at a temperature of 10° C. or above.56. The method according to claim 52 , utilizing a reactor residence time of 20 minutes or less.57. The method according to claim 56 , utilizing a reactor residence time of 10 minutes or less.58. The method according to claim 52 , wherein the conversion of comonomer is from 45% to 80%.59. The method according to claim 52 , wherein polymerization is carried out in a loop reactor.60. The method according to claim 52 , wherein the molar ratio of isobutylene to the one or more comonomers is from 3:5 to 1:1.61. The method according to claim 52 , further comprising incorporating the copolymer into a sizing composition.62. The method according to claim 52 , further comprising incorporating the copolymer into an unsaturated polyester resin.63. The method according to claim 52 , further comprising incorporating the copolymer into an epoxy resin.64. The method according to claim 52 , further comprising incorporating the copolymer into a polyurethane resin.65. An isobutylene copolymer comprising repeat units derived from isobutylene and ...

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Номер записи: 61
30-08-2018 дата публикации

Methods For Preparation Of Functionalized Polymers

Номер: US20180244809A1
Автор: Yan Yuan-Yong
Принадлежит: BRIDGESTONE CORPORATION

Disclosed herein are phosphino- and phosphate-silane functionalized polymers, methods of preparing a reactive polymer functionalized with an alkoxysilane having a phosphorous-containing group as a functionalizing reagent, the resulting polymer and vulcanizates thereof. The vulcanizates of the functionalized polymers can be used to produce vulcanized products, including tires. 1. A vulcanizate comprising the vulcanization product of a functionalized polymer prepared by a method comprising the steps of:(i) polymerizing monomers to form a reactive polymer, wherein the monomers include conjugated diene monomers, (a) a phosphino-silane group, wherein the alkoxysilane is selected from a group consisting of 2-(dicyclohexylphosphinoethyl)triethoxysilane, 2-(dicyclohexylphosphinoethyl)methyldiethoxysilane, 3-(dicyclohexylphosphinoethyl)triethoxysilane, and 3-(dicyclohexylphosphinoethyl)methyldiethoxysilane, or', '(b) a phosphato-silane group, and, '(ii) reacting the reactive polymer with an alkoxysilane having a phosphorous-containing group to form a polymer including'}(iii) adding the polymer including a phosphino- or_phosphato-silane group to a vulcanizable rubber composition.2. The vulcanizate of claim 1 , where said step of polymerizing employs a coordination catalyst or an anionic initiator.3. The vulcanizate of claim 1 , where the reactive polymer is an anionically-polymerized polymer.4. The vulcanizate of claim 3 , the anionically-polymerized polymer is prepared by polymerizing conjugated diene monomer claim 3 , optionally together with vinyl aromatic monomer claim 3 , by employing an organolithium initiator.5. The vulcanizate of claim 3 , where the anionically-polymerized polymer chain is a medium or low cis polydiene or polydiene copolymer.6. The vulcanizate of claim 5 , where the anionically-polymerized polymer chain is selected from the group consisting of polybutadiene claim 5 , polyisoprene claim 5 , poly(styrene-co-butadiene) claim 5 , poly(styrene-co-butadiene ...

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Номер записи: 62
23-09-2021 дата публикации

PNEUMATIC TIRE COMPRISING A RUBBER COMPOSITION BASED ON EPOXIDIZED POLYISOPRENE AND A THERMOPLASTIC POLYURETHANE

Номер: US20210291590A1
Автор: ARAUJO DA SILVA José-Carlos, Guery Cyrille
Принадлежит:

A tire having improved mechanical properties comprises a rubber composition based on at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%, at least one thermoplastic polyurethane, and a crosslinking system. 115.-. (canceled)16. A tire comprising a rubber composition based on:at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%;at least one thermoplastic polyurethane; anda crosslinking system.17. The tire according to claim 16 , wherein the at least one epoxidized polyisoprene predominantly comprises an epoxidized natural rubber.18. The tire according to claim 16 , wherein the molar degree of epoxidation of the at least one epoxidized polyisoprene is within a range extending from 10% to less than 50%.19. The tire according to claim 16 , wherein the molar degree of epoxidation of the at least one epoxidized polyisoprene is within a range extending from 40% to 80%.20. The tire according to claim 16 , wherein the at least one epoxidized polyisoprene has a Mooney viscosity (ML 1+4) at 100° C. claim 16 , measured according to Standard ASTM D1646 (1999) claim 16 , within a range extending from 30 to 150.21. The tire according to claim 16 , wherein a content of the at least one epoxidized polyisoprene claim 16 , in the rubber composition claim 16 , is within a range extending from 20 to 90 parts by weight per hundred parts by weight of elastomer claim 16 , phr.22. The tire according to claim 16 , wherein a content of the at least one thermoplastic polyurethane claim 16 , in the rubber composition claim 16 , is within a range extending from 10 to 80 phr.23. The tire according to claim 16 , wherein the at least one thermoplastic polyurethane comprises at least one flexible segment and at least one rigid segment claim 16 , the flexible segment resulting from a reaction of a polyisocyanate with a polyol claim 16 , the molecular weight of the hydrocarbon-based chain of which is between 600 ...

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Номер записи: 63
23-09-2021 дата публикации

Terminal-Functionalized Polymer, Rubber Composition Containing Same And Related Processes

Номер: US20210292522A1
Автор: Yuan-Yong Yan
Принадлежит: Bridgestone Corp

Disclosed herein are a terminal-functionalized polymer, rubber compositions containing the polymer, and related processes for preparing the polymer. The functionalizing compound used to prepare the terminal-functionalized polymer has a specified formula which includes a silicon atom and a moiety containing at least two carbon-carbon double bonds in a conjugated configuration.

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Номер записи: 64
23-09-2021 дата публикации

HYDROGENATED BLOCK COPOLYMER, VIBRATION DAMPER, SOUND INSULATOR, INTERLAYER FOR LAMINATED GLASS, DAM RUBBER, SHOE SOLE MATERIAL, FLOORING MATERIAL, LAMINATE, AND LAMINATED GLASS

Номер: US20210292542A1
Автор: Oshita Shinya, SENDA Yasushi
Принадлежит: KURARAY CO., LTD.

Provided is a hydrogenated block copolymer, which is a hydrogenation product of a block copolymer including a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene, the hydrogenated block copolymer being satisfied with the following requirements (1) and (2): 1: A laminate , comprising:an X layer comprising a hydrogenated block copolymer; anda plurality of Y layers laminated on at least one surface of the X layer;wherein the hydrogenated block copolymer is a hydrogenation product of a block copolymer comprising a polymer block (A) consisting of a structural unit derived from an aromatic vinyl compound and a polymer block (B) containing 30 mol % or more of a structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene,when the polymer block (B) is regarded as having a structure with a hydrogenation rate of 100 mol %, an average value of a methylene chain length of a main chain of the structural unit derived from at least one selected from the group consisting of a conjugated diene compound and isobutylene is from 1.0 to 6.0;wherein at least one of the plural Y layers is a layer comprising a thermoplastic resin (i) different from the hydrogenated block copolymer, andthe thermoplastic resin (i) is an ionomer.2: The laminate according to claim 1 , wherein the content of the polymer block (A) in the block copolymer is from 1 to 30% by mass.3: The laminate according to claim 1 , wherein the hydrogenation rate in the polymer block (B) is from 80 to 99 mol %.4: The laminate according to claim 1 , wherein the average value of a methylene chain length of a main chain of the structural unit derived from the conjugated diene compound and isobutylene is from 1.5 to 3.0.5: The laminate ...

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Номер записи: 65
14-09-2017 дата публикации

Copolymer, rubber composition using same, and tire

Номер: US20170260374A1
Автор: Daisuke Koda, Kei Hirata
Принадлежит: Amyris Inc, Kuraray Co Ltd

The present invention relates to a copolymer including a monomer unit (a) derived from isoprene and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing isoprene with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

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Номер записи: 66
22-08-2019 дата публикации

CROSS-LINKABLE RUBBER COMPOSITION, RUBBER CROSSLINKED PRODUCT, AND COMPLEX

Номер: US20190256693A1
Автор: FUKUMINE Yoshio
Принадлежит: ZEON CORPORATION

A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C). 1. A crosslinkable rubber composition comprising:a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less;a polyamine-based crosslinking agent (B); anda metal-based acid acceptor (C).2. The crosslinkable rubber composition according to claim 1 , whereinthe carboxyl group-containing nitrile rubber (A) includes5 to 60 wt % of α,β-ethylenically unsaturated nitrile monomer unit (a1), 0.5 to 12 wt % of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit (a2), and20 to 90 wt % of conjugated diene monomer unit (a3), whereinat least a part of the conjugated diene monomer unit (a3) is hydrogenated.3. The crosslinkable rubber composition according to claim 1 , whereinthe content of the metal-based acid acceptor (C) is 0.1 to 20 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (A).4. The crosslinkable rubber composition according to claim 1 , whereinthe metal-based acid acceptor (C) is one of aluminum hydroxide and hydrotalcite.5. The crosslinkable rubber composition according to claim 1 , whereinthe content of the metal-based acid acceptor (C) is 1 to 5 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (A).6. A rubber crosslinked product prepared by crosslinking the crosslinkable rubber composition according to .7. A complex comprising the rubber crosslinked product according to and metal. The present invention relates to a crosslinkable rubber composition, a rubber crosslinked product, and a complex using such a rubber crosslinked product.Carboxyl group-containing highly saturated nitrile copolymer rubbers are known in ...

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Номер записи: 67
13-08-2020 дата публикации

HEAVY-DUTY TIRE RUBBER COMPOSITIONS AND TIRES

Номер: US20200254816A1
Автор: KANBARA Hiroshi, KODA Daisuke
Принадлежит: KURARAY CO., LTD.

The invention provides a heavy-duty tire rubber composition excellent in wet grip performance and steering stability, and a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is not less than 30 mol % and less than 70 mol %. 2. The heavy-duty tire rubber composition according to claim 1 , wherein a melt viscosity of the modified liquid diene rubber (B) at 38° C. is 0.1 to 4 claim 1 ,000 Pa·s.3. The heavy-duty tire rubber composition according to claim 1 , wherein the modified liquid diene rubber (B) is a polymer comprising a monomer unit derived from isoprene and/or butadiene.4. The heavy-duty tire rubber composition according to claim 1 , wherein the filler (C) is at least one selected from the group consisting of a silica and a carbon black.5. The heavy-duty tire rubber composition according to claim 4 ,wherein the filler (C) is a carbon black having an average particle diameter of 5 to 100 nm silicas and/or a silica having an average particle diameter of 0.5 to 200 nm.6. The heavy-duty tire rubber composition according to claim 4 ,wherein the filler (C) is silica, andthe heavy-duty tire rubber composition further comprises:0.1 to 30 parts by mass of a silane coupling agent per 100 parts by mass of the silica.7. The heavy-duty tire rubber composition according to claim 1 , wherein the solid rubber (A) is one or more selected from the group consisting of a natural rubber claim 1 , a styrene butadiene rubber claim 1 , a butadiene rubber and ...

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Номер записи: 68
13-08-2020 дата публикации

LIQUID HYDROCARBON COPOLYMERS HAVING TWO CYCLOCARBONATE ETHER END GROUPS

Номер: US20200255571A1
Автор: Carpentier Jean-Francois, CHAUVEAU Cyril, FOUQUAY Stéphane, Guillaume Sophie, MICHAUD Guillaume, SIMON Frédéric
Принадлежит:

1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) 2. Copolymer P according to claim 1 , characterized in that its main chain consists essentially of the repeating unit (I) of formula (I) claim 1 , of the repeating unit (II) of formula (II) and claim 1 , optionally claim 1 , of the repeating unit (III) of formula (III) and in that the number p of units (I) and the number n of units (II) are such that:p/(n+p) is between 45% and 95%, andn/(n+p) is between 5% and 55%.5. Copolymer P according to claim 1 , characterized in that the radical Rof the unit (II) represents a methyl radical.11. Process according to claim 10 , characterized in that the bipolymer A used in step (i) is a poly(butadiene-isoprene) claim 10 , preferably comprising from 45% to 95% by number of butadiene-based units and from 5% to 55% by number of isoprene-based units claim 10 , said percentages being expressed on the basis of the total number of constituent units of the poly(butadiene-isoprene) chain.12. Process according to claim 11 , characterized in that the chain of the poly(butadiene-isoprene) used in step (i) comprises:less than 5% by number of vinyl-1,2 butadiene units on the basis of the number of butadiene-based units, andless than 5% of the total number of vinyl-1,2 isoprene units and of vinyl-3,4 isoprene units on the basis of the number of isoprene-based units.13. Process according to claim 11 , characterized in that the chain of the poly(butadiene-isoprene) used in step (i) comprises:at least 80% by number of cis-1,4 butadiene units on the basis of the number of butadiene-based units, andat least 90% by number of cis-1,4 isoprene units on the basis of the number of isoprene-based units.14. A mixture functional as an adhesive comprising the hydrocarbon-based polymer as defined in and ...

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Номер записи: 69
04-11-2021 дата публикации

COMPOSITION COMPRISING A BUTADIENE ELASTOMER AND A SPECIFIC FILLER, AND TIRE COMPRISING THIS COMPOSITION

Номер: US20210340297A1
Автор: EL-OTHMANI KARIM, MARECHAL Jean-Marc
Принадлежит:

A rubber composition is based on an elastomeric matrix comprising at least 50 phr of butadiene elastomer, at most 60 phr of filler comprising from 5 to 30 phr of carbon black which predominantly comprises a carbon black termed black G, and from 2 to 30 phr of inorganic filler. A finished or semi-finished rubber item and a tire are made from this composition. 115.-. (canceled)16. A rubber composition based on:an elastomeric matrix comprising at least 50 phr of butadiene elastomer;a crosslinking system; [{'sup': '2', 'from 5 to 30 phr of carbon black predominantly comprising black G carbon black having a BET specific surface area, measured according to Standard D6556-10, at most equal to 40 m/g and an oil absorption number of compressed sample COAN, measured according to Standard ASTM D3493-16, at least equal to 60 ml/100 g; and'}, 'from 2 to 30 phr of inorganic filler,, 'at most 60 phr of filler comprisingwherein the rubber composition does not comprise a coupling agent or comprises less than 5% by weight of a coupling agent relative to a weight of inorganic filler.17. The rubber composition according to claim 16 , wherein the butadiene elastomer is selected from the group consisting of polybutadienes and mixtures thereof.18. The rubber composition according to claim 16 , wherein the elastomeric matrix further comprises an isoprene elastomer.19. The rubber composition according to claim 16 , wherein the butadiene elastomer is functionalized.20. The rubber composition according to claim 19 , wherein the functionalized butadiene elastomer comprises a functional group comprising a function selected from the group consisting of alkoxysilane claim 19 , silanol claim 19 , amine claim 19 , carboxylic acid and polyether functions claim 19 , and combinations thereof.21. The rubber composition according to claim 20 , wherein the functionalized butadiene elastomer comprises a functional group comprising at least one amine function.22. The rubber composition according to claim ...

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Номер записи: 70
11-11-2021 дата публикации

HYDROGENATED LINEAR POLYDIENE COPOLYMERS AS BASE STOCK OR LUBRICANT ADDITIVES FOR LUBRICANT COMPOSITIONS

Номер: US20210347927A1
Автор: Groß-Onnebrink Yvonne, Pletsch Holger, SCHWEISSINGER Emily Clare
Принадлежит:

The present invention relates to hydrogenated linear copolymers comprising butadiene and isoprene monomer units, as well as the process for preparing these copolymers. The invention further relates to a lubricating oil composition comprising one or more hydrogenated linear copolymers according to the invention, as well as to the use of the aforementioned copolymers as a lubricant additive or a synthetic base fluid for lubricant compositions, especially in gear oils, transmission oils, hydraulic oils, engine oils, grease, marine oils or industrial lubricating oils. 115-. (canceled)16. A hydrogenated linear copolymer , obtainable by polymerizing a monomer composition comprising:a) 10 to 60 mol-% of 1,3-butadiene monomer;b) 40 to 90 mol-% of isoprene;{'sub': 1', '6, 'c) 0 to 40 mol-% of one or more of C-Calkyl(meth)acrylates; and'}{'sub': 7', '24, 'd) 0 to 30 mol-% of one or more of C-Calkyl(meth)acrylates;'} the total amount of monomers a) and b) sum up to at least 60 mol-% of the total amount of the monomer composition; and', 'the hydrogenated copolymer has a weight-average molecular weight in the range of 2,000 g/mol-30,000 g/mol and a degree of hydrogenation of more than 95%., 'based on the total amount of monomers in the monomer composition, wherein17. The hydrogenated linear copolymer of claim 16 , comprising a weight-average molecular weight of 3 claim 16 ,000 g/mol-20 claim 16 ,000 g/mol.18. The hydrogenated linear copolymer of claim 16 , wherein the hydrogenated copolymer has a weight-average molecular weight of 4 claim 16 ,000 g/mol-18 claim 16 ,000 g/mol.19. The hydrogenated linear copolymer of claim 16 , wherein the hydrogenated copolymer has a PDI of 1.0 to 4.0.20. The hydrogenated linear copolymer of claim 16 , wherein the hydrogenated copolymer has a PDI of 1.0-3.3.21. The hydrogenated linear copolymer of claim 16 , wherein the hydrogenated copolymer is a statistical or block copolymer.22. The hydrogenated linear copolymer of claim 16 , wherein the ...

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Номер записи: 71
29-08-2019 дата публикации

PREFORMED CATALYTIC SYSTEM COMPRISING A RARE-EARTH METALLOCENE

Номер: US20190263954A1
Автор: LAFAQUIERE VINCENT, Thuilliez Julien
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

A catalytic system based at least on a preformation monomer which is ethylene or a mixture of ethylene and of a conjugated diene, on a metallocene of formula {P(Cp)(Cp)Y} or CpCpY and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, the Cp, Cp, Cpand Cpgroups, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted, and P being a group bridging the two Cpand Cpgroups and comprising a silicon or carbon atom, is provided. Such a catalytic system exhibits an improved stability of the catalytic activity over time, in particular on storage. 1. A catalytic system based at least:on a preformation monomer which is ethylene or a mixture of ethylene and of a conjugated diene,on a metallocene of formula (Ia) or (Ib), [{'br': None, 'sup': 1', '2, '{P(Cp)(Cp)Y}\u2003\u2003(Ia)'}, {'br': None, 'sup': 3', '4, 'CpCpY \u2003\u2003(Ib)'}], 'on an organometallic compound as cocatalyst,'}Y denoting a group comprising a metal atom which is a rare earth metal,{'sup': 1', '2', '3', '4, 'Cp, Cp, Cpand Cp, which are identical or different, being selected from the group consisting of fluorenyl groups, cyclopentadienyl groups and indenyl groups, the groups being substituted or unsubstituted,'}{'sup': 1', '2, 'P being a group bridging the two Cpand Cpgroups and comprising a silicon or carbon atom.'}2. A catalytic system according to claim 1 , in which the cocatalyst is an organomagnesium compound.3. A catalytic system according to claim 1 , in which the cocatalyst is an organometallic compound comprising an alkyl group bonded to the metal atom.4. A catalytic system according to claim 1 , in which the cocatalyst is a dialkylmagnesium compound or an alkylmagnesium halide.5. A catalytic system according to claim 1 , in which Cpand Cpare identical and are selected from the group consisting of ...

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Номер записи: 72
20-08-2020 дата публикации

UTILIZING ENGINEERED MEDIA FOR RECOVERY OF MINERALS IN TAILINGS STREAM AT THE END OF A FLOTATION SEPARATION PROCESS

Номер: US20200261924A1
Автор: Amelunxen Peter A., Bailey Timothy, Dolan Paul, FERNALD MARK R., Rothman Paul J., Ryan Michael
Принадлежит:

Apparatus uses engineered collection media to recover mineral particles in a mineral extraction process, e.g., for processing a tailings stream at the end of a flotation separation process. The engineered collection media are added to slurry/tailings containing the mineral particles. The engineered collection media have collection surfaces coated with a chemical selected for attracting the mineral particles to the collection surfaces so the engineered collection media becomes mineral laden media in the slurry/tailings in a loading stage. The apparatus include three stages: removing unwanted material from mineral laden media; using a stripping agent to strip the mineral particles from the mineral laden media; and separating the engineered collection media from the mineral particles and the stripping agent. The stripping agent is reused for stripping, and the engineered collection media are returned to the loading stage. The engineered collection media can have a smooth or foam-like surface. 1. Apparatus comprising:a first separation device configured to receive a first mixture containing mineral laden media and unwanted material, the first separation device further configured to separate the mineral laden media from the unwanted material in the first mixture, the mineral laden media comprising engineered collection media with a collection surface having mineral particles attached thereto;a stripping device configured to receive from the first separation device the mineral laden media and to cause the mineral laden media to contact with a stripping agent, the stripping device further configured to cause the mineral particles attached on the collection surface to separate from the engineered collection media;a second separation device configured to receive from the stripping device a second mixture containing the stripping agent, the mineral particles and the engineered collection media, the second separation device further configured to separate the engineered ...

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Номер записи: 73
20-08-2020 дата публикации

METHOD OF PRODUCING A MODIFIED DIENE-CONTAINING RUBBER, THE RUBBER AND A COMPOSITION BASED THEREON

Номер: US20200262956A1
Автор: AVERKOV Alexei Mikhailovich, TURENKO Svetlana Viktorovna
Принадлежит: PUBLIC JOINT STOCK COMPANY "SIBUR HOLDING"

The present invention relates to a method of producing a rubber, comprising (co)polymerizing at least one diene monomer and optionally at least one vinylaromatic monomer, and a vinyl-silicone compound, in the presence of a functionalizing lithium initiator, and modifying the obtained (co)polymer by a poly functional silicon-containing agent. The functionalizing lithium initiator is obtained by reacting an organolithium compound, a secondary amine and a diene-containing compound. In addition, the instant inventon relates to rubbers obtained by said method, rubber compositions and vulcanizates based thereon, semi-finished products and tires, comprising such a rubber. The present invention provides obtaining of rubber compositions and vulcanizates based thereon characterized by the improved complex of histeresis properties. 1. A method of producing a rubber , comprising: at least one diene monomer,', 'optionally at least one vinylaromatic monomer, and', 'a vinyl-silicone compound, in the presence of a functionalizing lithium initiator, and, 'a) (co)polymerizingb) modifying the obtained (co)polymer by a polyfunctional silicon-containing agent, wherein the functionalizing lithium initiator is obtained by reacting an organolithium compound, a secondary amine and a diene-containing compound.2. The method according to claim 1 , wherein the (co)polymerization is an anionic (co)polymerization in solvent.3. The method according to claim 1 , wherein the diene monomer is selected from the group consisting of conjugated dienes having from 4 to 12 carbon atoms claim 1 , preferably 1 claim 1 ,3-butadiene and/or isoprene.4. The method according to claim 1 , wherein the vinylaromatic monomer is a compound selected from the group comprising: styrene claim 1 , α-methylstyrene claim 1 , ortho- claim 1 , meta- and para-methylstyrene claim 1 , 3-vinyl toluene claim 1 , ethylvinyl benzene claim 1 , 4-cyclohexyl styrene claim 1 , para-tert-butyl styrene claim 1 , methoxy styrene claim 1 , ...

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Номер записи: 74
18-12-2014 дата публикации

BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE

Номер: US20140371415A1
Автор: WASHIZU Kensuke
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

There is provided a branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1): 2. The branched conjugated diene copolymer of claim 1 , wherein the copolymerization ratio (l) of the branched conjugated diene compound (1) is 2.5 to 75% by weight claim 1 , and the copolymerization ratio (m) of the conjugated diene compound (2) is 25 to 97.5% by weight.3. The branched conjugated diene copolymer of claim 1 , which is intended for improvement of processability and is low in a Mooney viscosity ML(130° C.) compared with a polymer which has the same weight-average molecular weight and in which the branched conjugated diene compound (1) is replaced by the conjugated diene compound (2).4. The branched conjugated diene copolymer of claim 1 , wherein the conjugated diene compound (2) is 1 claim 1 ,3-butadiene and/or isoprene.57-. (canceled)8. A rubber composition comprising the branched conjugated diene copolymer of .9. A pneumatic tire produced using the rubber composition of .11. The rubber composition of claim 10 , wherein the copolymerization ratio (l) of the branched conjugated diene compound (1) is 2.5 to 75% by weight claim 10 , and the copolymerization ratio (m) of the conjugated diene compound (2) is 25 to 97.5% by weight.12. The rubber composition of claim 10 , comprising a branched conjugated diene copolymer claim 10 , which is intended for improvement of processability and is low in a Mooney viscosity ML(130° C.) compared with a polymer which has the same weight-average molecular weight and in which the branched conjugated diene compound (1) is replaced by the conjugated diene compound (2).13. The rubber composition of claim 10 , wherein the branched conjugated diene compound (1) is myrcene and/or farnesene.14. The rubber composition of claim 10 , wherein the conjugated diene compound (2) is 1 claim 10 ,3-butadiene and/or isoprene.15. A pneumatic tire produced using the rubber composition of . The ...

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Номер записи: 75
27-08-2020 дата публикации

Modifier, Modified And Conjugated Diene-Based Polymer And Rubber Composition Including The Same

Номер: US20200270378A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, CHO Woo Jin, Choi Heung Yeal, Jeon Hee Jung, Kang Suk Youn, Oh Kyoung Hwan
Принадлежит: LG CHEM, LTD.

The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer. 2. The modified and conjugated diene-based polymer of claim 1 , wherein the modified and conjugated diene-based polymer has molecular weight distribution of 2.0 to 3.5.3. The modified and conjugated diene-based polymer of claim 1 , wherein the modified and conjugated diene-based polymer has a mooney viscosity (MV) of 20 to 70 at 100° C.5. The method for preparing a modified and conjugated diene-based polymer of claim 4 , further comprising prior to the modification step claim 4 , a step of performing polymerization reaction of a conjugated diene-based monomer using a catalyst composition comprising a lanthanide series rare earth element-containing compound in a polymerization solvent to prepare a conjugated diene-based polymer having an activated organometal part.6. The method for preparing a modified and conjugated diene-based polymer of claim 5 , wherein the catalyst composition comprises the lanthanide series rare earth element-containing compound claim 5 , an alkylating agent and a halogen compound.8. The method for preparing a modified and conjugated diene-based polymer of claim 5 , wherein the catalyst composition further comprises a conjugated diene-based monomer.9. The method for preparing a modified and conjugated diene-based polymer of claim 4 , wherein the conjugated diene-based polymer comprising the activated organometal part is a conjugated diene-based polymer comprising a terminal activated ...

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Номер записи: 76
16-12-2021 дата публикации

STYRENE-BASED BLOCK COPOLYMER LATEX

Номер: US20210388199A1
Автор: KODEMURA Junji, SATOH YOSHITAKA
Принадлежит: ZEON CORPORATION

A latex of a styrene-based block copolymer includes a styrene-based block copolymer and water. The styrene-based block copolymer includes a toluene insoluble content of 30 to 95 wt %. The latex of the styrene-based block copolymer is superior in the processability and can provide a molded film such as a dip-molded product having the high tear strength, the high stress retention and the soft texture. 1. A latex of a styrene-based block copolymer comprising a styrene-based block copolymer and water , the styrene-based block copolymer comprising a toluene insoluble content of 30 to 95 wt %.2. The latex of the styrene-based block copolymer according to claim 1 , wherein the styrene-based block copolymer is a styrene-based block copolymer represented by the following general formula (1) claim 1 ,{'br': None, 'sub': 'n', 'A-B-Y-(B-A)\u2003\u2003(1)'}in the general formula (1), each of A is independently a polymer block containing 90 wt % or more of a unit derived from an alkenyl aromatic hydrocarbon; Y is a single bond or a residue of a coupling agent having functionality; each of B is independently a polymer block containing 90 wt % or more of a unit derived from a conjugated diene; and “n” is 0 to 5.3. The latex of the styrene-based block copolymer according to claim 1 , wherein the styrene-based block copolymer is a styrene-isoprene block copolymer.4. The latex of the styrene-based block copolymer according to claim 1 , wherein the viscosity at 25° C. is 10 to 300 cps when a solid content concentration is set to 55 wt %.5. A molded film comprising the latex of the styrene-based block copolymer according to .6. A packaging structure capable of accommodating an object between a first sheet substrate and a second sheet substrate claim 1 , wherein at least a part of the first sheet substrate and at least a part of the second sheet substrate are bonded and laminated by a film comprising the latex of the styrene-based block copolymer according to .7. A substrate with an ...

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Номер записи: 77
04-10-2018 дата публикации

MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION AND RUBBER ARTICLE

Номер: US20180282456A1
Автор: Horikawa Yasuo
Принадлежит: BRIDGESTONE CORPORATION

Provided is a multi-component copolymer comprising conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein: a weight-average molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 50,000 or more. A rubber composition comprising the multi-component copolymer, a crosslinked rubber composition, and a rubber article comprising the crosslinked rubber composition are also provided. 1. A multi-component copolymer comprising a conjugated diene unit , a non-conjugated olefin unit and an aromatic vinyl unit , wherein:a weight-average molecular weight of a chain part, divided by the conjugated diene unit and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 50,000 or more.2. The multi-component copolymer according to claim 1 , wherein:a peak top molecular weight of the chain pars, divided by the conjugated diene unit and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 40,000 or more.3. The multi-component copolymer according to claim 1 , wherein:a content of the chain part, divided by the conjugated diene unit and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 20 mass % or more.4. The multi-component copolymer according to claim 1 , wherein:the weight-average molecular weight of the chain parts, divided by the conjugated diene unit and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 100,000 or more.5. The multi-component copolymer according to claim 1 , wherein:a content of the conjugated diene unit is 50 mol % or less.6. The multi-component copolymer according to claim 1 , wherein:a content of the non-conjugated olefin unit is 40 mol % or more.7. The multi- ...

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Номер записи: 78
04-10-2018 дата публикации

MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION AND RUBBER ARTICLE

Номер: US20180282457A1
Автор: KIMURA Madoka, OISHI Shigeki, TANABE Tomoe
Принадлежит: BRIDGESTONE CORPORATION

Provided is a multi-component copolymer having crack growth resistance and wet performance. The multi-component copolymer comprises conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein: a ratio among all of the aromatic vinyl units of at least one aromatic vinyl unit existing in amorphous parts inclusive of the conjugated diene units is 50% or more. 1. A multi-component copolymer comprising conjugated diene units , non-conjugated olefin units and aromatic vinyl units , wherein:a ratio among all of the aromatic vinyl units of at least one aromatic vinyl unit existing in amorphous parts inclusive of the conjugated diene units is 50% or more.2. The multi-component copolymer according to claim 1 , wherein:a cis-1,4 bond content among all of the conjugated diene units is 50% or more.3. The multi-component copolymer according to claim 1 , wherein:a content of the aromatic vinyl units is 5 mol % or more.4. The multi-component copolymer according to claim 1 , wherein:the content of the aromatic vinyl units is 30 mol % or less.5. The multi-component copolymer according to claim 1 , wherein:a content of the conjugated diene units is 20 mol % or more.6. The multi-component copolymer according to claim 1 , wherein:the content of the conjugated diene units is 60 mol % or less.7. The multi-component copolymer according to claim 1 , wherein:a content of the non-conjugated olefin units is 20 mol % or more.8. The multi-component copolymer according to claim 1 , wherein:the content of the non-conjugated olefin units is 80 mol % or less.9. The multi-component copolymer according to claim 1 , wherein:the non-conjugated olefin units consist exclusively of one or more selected from ethylene units, propylene units or 1-butene units.10. The multi-component copolymer according to claim 1 , wherein:the aromatic vinyl units comprise styrene units.11. The multi-component copolymer according to claim 1 , wherein:the conjugated diene units comprise 1,3-butadiene ...

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Номер записи: 79
04-10-2018 дата публикации

VANADIUM PYRIDINE-IMINE COMPLEX, CATALYTIC SYSTEM COMPRISING SAID VANADIUM PYRIDINE-IMMINE COMPLEX AND A (CO) POLYMERIZATION PROCESS OF CONJUGATED DIENES

Номер: US20180282458A1
Автор: LEONE Giuseppe, Masi Francesco, RICCI Giovanni, Sommazzi Anna
Принадлежит: Versalis S.p.A.

Vanadium pyridine-imine complex having general formula (I), wherein:—R, R, R, R, Rand R, equal to or different from each other, represent a hydrogen atom; or are selected from linear or branched C-Calkyl groups, preferably C-C, optionally halogenated cycloalkyl groups optionally substituted, aryl groups optionally substituted;—X, Xand X, equal to or different from each other, represent a halogen atom such as, for example, chlorine, bromine, iodine, preferably chlorine; or are selected from linear or branched C-Calkyl groups, preferably C-C, —OCORgroups or —ORgroups wherein Ris selected from linear or branched C-Calkyl groups, preferably C-C;—Y is selected from ethers such as, for example, diethylether, tetrahydrofuran (THF), dimethoxyethane, preferably is etrahydrofuran (THF);—n is 0 or 1. Said vanadium pyridine-imine complex having general formula (I) can be advantageously used in a catalytic system for the (co) polymerization of conjugated dienes. 2: The vanadium pyridine-imine complex of claim 1 , wherein:{'sub': 1', '1', '20, 'Rrepresents a hydrogen atom or branched C-Calkyl group;'}{'sub': '2', 'Rrepresents an optionally substituted cycloalkyl group or an optionally substituted aryl group;'}{'sub': 3', '4', '5', '6, 'R, R, Rand R, each represent a hydrogen atom;'}{'sub': 1', '2', '3, 'X, Xand X, each independently represent a halogen atom;'}Y is tetrahydrofuran (THF); ann is 1.3: A catalytic system for (co)polymerization of conjugated dienes claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(a) the vanadium pyridine-imine complex of ; and'}(b) a co-catalyst that is an aluminum organo-derivative compound.4: The catalytic system of claim 3 , wherein the co-catalyst comprises an aluminoxane having a formula (III):{'br': None, 'sub': 12', '2', '13', 'm', '14', '2, '(R)—Al—O—[—Al(R)—O-]-Al(R)\u2003\u2003(III)'}{'sub': 12', '13', '14', '1', '20, 'wherein R, Rand Reach independently represent a hydrogen atom, a halogen atom, or a linear or ...

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Номер записи: 80
11-10-2018 дата публикации

MULTICOMPONENT COPOLYMER, RUBBER COMPOSITION, CROSS-LINKED RUBBER COMPOSITION, RUBBER PRODUCT, AND TIRE

Номер: US20180291185A1
Автор: Horikawa Yasuo, ONO Yamato, Tardif Olivier
Принадлежит: BRIDGESTONE CORPORATION

An object of the present invention is to provide a multicomponent copolymer for use for producing a crosslinked rubber composition and a rubber product excellent in fracture performance (strength and elongation) at high temperatures while maintaining high weather resistance. Further, the invention provides a rubber composition containing the multicomponent copolymer, a crosslinked rubber composition obtained by crosslinking the rubber composition, and a rubber product and a tire using the rubber composition or the crosslinked rubber composition. The multicomponent copolymer of the invention contains a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, wherein the main chain is formed of an acyclic structure alone, the content of the aromatic vinyl unit is 3 mol % or more of the whole multicomponent copolymer, and the content of the non-conjugated olefin unit is more than 44 mol % and less than 97 mol % of the whole multicomponent copolymer. 1. A multicomponent copolymer comprising a conjugated diene unit , a non-conjugated olefin unit and an aromatic vinyl unit , wherein:the main chain is formed of an acyclic structure alone,the content of the aromatic vinyl unit is 3 mol % or more of the whole multicomponent copolymer, andthe content of the non-conjugated olefin unit is more than 44 mol % and less than 97 mol % of the whole multicomponent copolymer.2. The multicomponent copolymer according to claim 1 , wherein the content of the aromatic vinyl unit is 30 mol % or less of the whole multicomponent copolymer.3. The multicomponent copolymer according to claim 1 , wherein the content of the conjugated diene unit is 1 mol % or more of the whole multicomponent copolymer.4. The multicomponent copolymer according to claim 1 , wherein the content of the conjugated diene unit is 40 mol % or less of the whole multicomponent copolymer.5. The multicomponent copolymer according to claim 1 , wherein the non-conjugated olefin unit is an ethylene unit ...

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Номер записи: 81
10-09-2020 дата публикации

POLYMERS FROM MUCONIC ACID ISOMERS AND ITS DERIVATIVES

Номер: US20200283554A1
Автор: Mang Michael, Milan Jay L., Ozmeral Cenan
Принадлежит:

This invention relates to polymerization of muconic acid and its derivatives. Muconic acid useful for the present invention can be in any of its isomeric forms including cis, cis-muconic acid (ccMA), cis, trans-muconic acid (ctMA), and trans, trans-muconic acid (ttMA). Muconic acid used in the present invention can be derived either from renewable carbon resources through biological fermentation or from non-renewable petrochemical resources through biological fermentation or chemical conversion. 138-. (canceled)39. A polymer comprising recurring units of the formula (i){'br': None, '—[RO2C—C—C═C—C—CO2R]—\u2003\u2003(i)'}wherein, each of R is hydrogen or alkyl or aryl, alkyl and {'br': None, 'RO2C—C═C—C═C—CO2R \u2003\u2003(ii)'}, 'said recurring units of the formula (i) is derived from a monomeric unit of the formula (ii)'}through an electrochemical reaction and each of R in said monomeric unit of the formula (ii) is hydrogen or alkyl or aryl and wherein said monomeric unit of formula (ii) is derived from renewable biological materials as a source of carbon using a microbial fermentation process.40. A polymer as in claim 39 , wherein said recurring unit is hex-3-enedioic acid.41. A polymer as in claim 39 , wherein said recurring unit is hex-3-enedioic ester.42. A polymer as in claim 40 , wherein said hex-3-enedioic acid is selected from a group consisting of EZ isomer claim 40 , EE isomer claim 40 , ZZ isomer and ZE isomer.43. A polymer as in claim 40 , further comprising at least one monomer unit selected from a group consisting of butadiene claim 40 , isoprene claim 40 , methacrylic acid claim 40 , styrene claim 40 , ethylene claim 40 , propylene claim 40 , acrylic acid or acrylonitrile.45. A polymer as in claim 44 , wherein said recurring unit is 2 claim 44 ,5 dimethylene-3-enedioic acid.46. A polymer as in claim 44 , wherein said recurring unit is 2 claim 44 ,5 dimethylene-3-enedioic ester.47. A polymer as in claim 45 , wherein said 2 claim 45 ,5 dimethylene-3- ...

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Номер записи: 82
26-09-2019 дата публикации

RADICAL POLYMERIZATION INITIATOR AND METHOD FOR PRODUCING POLYMERS

Номер: US20190292146A1
Автор: BANDO Fumiaki, Yamago Shigeru
Принадлежит:

The present invention involves a radical polymerization initiator comprising an organotellurium compound represented by a formula (1), wherein Rrepresents an alkyl group or the like, each of Rand Rindependently represents a hydrogen atom or the like, and each of R, R, and Rindependently represents a hydrogen atom or the like. 2. The method for producing a polymer according to claim 1 , wherein the radically polymerizable monomer is subjected to radical polymerization in a state in which an azo-based radical generator is further present in the polymerization system.3. The method for producing a polymer according to claim 1 , wherein the radically polymerizable monomer is subjected to radical polymerization in a state in which light is applied to the polymerization system.4. The method for producing a polymer according to claim 1 , wherein the radically polymerizable monomer is subjected to radical polymerization in a state in which a ditelluride compound represented by a formula (3) is further present in the polymerization system claim 1 ,{'br': None, 'sup': 10', '11, 'RTe-TeR\u2003\u2003(3)'}wherein each of le and independently represents a group selected from an alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaromatic ring group.5. The method for producing a polymer according to claim 1 , wherein the molecular weight distribution of the polymer produced is 1.01 to 2.50. This is a divisional of U.S. application Ser. No. 15/038,579 filed on May 23, 2016, which is a 371 of PCT/JP2014/081334 filed on Nov. 27, 2014 which claims foreign priority to Japanese Application No. 2013-245352 filed on Nov. 27, 2013, the entire contents of which is incorporated herein by reference.The present invention relates to a radical polymerization initiator that is useful for producing a polymer that includes a double bond at the molecular terminal, and a method for producing a polymer that ...

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Номер записи: 83
26-09-2019 дата публикации

Method for producing for conjugated-diene-based rubber

Номер: US20190292289A1
Автор: Takuro Sakurai
Принадлежит: Zeon Corp

A method of production of a conjugated diene rubber including a first step of polymerizing a monomer containing a conjugated diene compound in an inert solvent using a polymerization initiator so as to obtain a conjugated diene polymer chain having an active end, a second step of reacting polyorganosiloxane represented by the following general formula (1) with the conjugated diene polymer chain having an active end by adding the polyorganosiloxane in an amount of 1 mole or more, when converted to the number of repeating units of the siloxane structure (—Si—O—) in the polyorganosiloxane, with respect to 1 mole of the polymerization initiator used in the first step, and a third step of reacting a compound represented by the following general formula (2) with the conjugated diene polymer chain with which polyorganosiloxane was reacted obtained in the second step.

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Номер записи: 84
18-10-2018 дата публикации

MULTI-COMPONENT COPOLYMER, RUBBER COMPOSITION, CROSSLINKED RUBBER COMPOSITION AND RUBBER ARTICLE

Номер: US20180298167A1
Автор: Horikawa Yasuo
Принадлежит: BRIDGESTONE CORPORATION

Provided is a multi-component copolymer comprising conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein: a peak top molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 1,000 or more and less than 40,000. A rubber composition comprising the multi-component copolymer, a crosslinked rubber composition, and a rubber article comprising the crosslinked rubber composition are also provided. 1. A multi-component copolymer comprising conjugated diene units , non-conjugated olefin units and aromatic vinyl units , wherein:a peak top molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 1,000 or more and less than 40,000.2. The multi-component copolymer according to claim 1 , wherein:a content of the chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 5 mass % or more.3. The multi-component copolymer according to claim 1 , wherein:40 mass % or more of the chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, have a molecular weight of 1,000 to 40,000.4. The multi-component copolymer according to claim 1 , wherein:a content of the conjugated diene units is 1 mol % to 20 mol %.5. The multi-component copolymer according to claim 1 , wherein:a content of the non-conjugated olefin units is 60 mol % or more.6. The multi-component copolymer according to claim 1 , wherein:a content of the aromatic vinyl units is 5 mol % or more.7. The multi-component copolymer according to claim 1 , wherein:the non-conjugated olefin units consist exclusively of ethylene units.8. ...

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Номер записи: 85
24-09-2020 дата публикации

PRODUCTION METHOD FOR POLYMER LATEX

Номер: US20200299464A1
Автор: KODEMURA Junji, SATOH YOSHITAKA
Принадлежит: ZEON CORPORATION

A method for producing a polymer latex includes: a preparation step of reducing the weight average molecular weight of a conjugated diene polymer (A) by 20 to 70 mass %, thereby obtaining an organic solvent solution containing a conjugated diene polymer (B) having a weight average molecular weight lower than that of the conjugated diene polymer (A); and an emulsification step of emulsifying the organic solvent solution in water in the presence of a surfactant, thereby obtaining a polymer latex. 1. A method for producing a polymer latex comprising:a preparation step of reducing the weight average molecular weight of a conjugated diene polymer (A) by 20 to 70 mass %, thereby obtaining an organic solvent solution containing a conjugated diene polymer (B) having a weight average molecular weight lower than that of the conjugated diene polymer (A), andan emulsification step of emulsifying the organic solvent solution in water in the presence of a surfactant, thereby obtaining a polymer latex.2. The method for producing the polymer latex according to claim 1 , wherein in the preparation step claim 1 , the conjugated diene polymer (B) is obtained by applying mechanical stress to the conjugated diene polymer (A) to reduce the weight average molecular weight of the conjugated diene polymer (A) claim 1 , and then is dissolved in an organic solvent to obtain the organic solvent solution containing the conjugated diene polymer (B).3. The method for producing the polymer latex according to claim 1 , wherein in the preparation step claim 1 , a molecular cutting agent is added to an organic solvent solution containing the conjugated diene polymer (A) to reduce the weight average molecular weight of the conjugated diene polymer (A) claim 1 , thus obtaining the organic solvent solution containing the conjugated diene polymer (B).4. The method for producing the polymer latex according to claim 3 , wherein the molecular cutting agent is a peroxide or ozone.5. The method for producing ...

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Номер записи: 86
02-11-2017 дата публикации

METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

Номер: US20170313802A1
Автор: BANDO Fumiaki
Принадлежит: ZEON CORPORATION

The present invention is a method for producing a conjugated diene polymer comprising polymerizing at least a conjugated diene monomer using a living radical polymerization method to produce a conjugated diene polymer that comprises a halogen atom at a terminal of a polymer chain, a living radical polymerization reaction being initiated using a copper salt, a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom, and an organic halide, to produce the conjugated diene polymer having a number average molecular weight (Mn) of 1,000 to 1,000,000 and a molecular weight distribution (Mw/Mn) of less than 2.0. The present invention provides a method for efficiently and inexpensively producing a conjugated diene polymer that includes a halogen atom at the terminal of the polymer chain, and has the desired molecular weight and a narrow molecular weight distribution. 1. A method for producing a conjugated diene polymer comprising polymerizing at least a conjugated diene monomer using a living radical polymerization method to produce a conjugated diene polymer that comprises a halogen atom at a terminal of a polymer chain , a living radical polymerization reaction being initiated using a copper salt , a multidentate ligand that comprises a nitrogen atom having an sphybridized orbital as a coordinating atom , and an organic halide , to produce the conjugated diene polymer having a number average molecular weight (Mn) of 1 ,000 to 1 ,000 ,000 and a molecular weight distribution (Mw/Mn) of less than 2.0.2. The method for producing a conjugated diene polymer according to claim 1 , wherein the number of coordinating atoms included in the multidentate ligand is 2 to 4.3. The method for producing a conjugated diene polymer according to claim 1 , wherein the multidentate ligand comprises two or more nitrogen atoms having an sphybridized orbital as the coordinating atoms.4. The method for producing a conjugated diene polymer according ...

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Номер записи: 87
01-11-2018 дата публикации

MODIFER, MODIFIED AND CONJUGATED DIENE-BASED POLYMER AND RUBBER COMPOSITION INCLUDING THE SAME

Номер: US20180312669A1
Автор: Ahn Jeong Heon, Bae Hyo Jin, CHO Woo Jin, Choi Heung Yeal, Jeon Hee Jung, Kang Suk Youn, Oh Kyoung Hwan
Принадлежит: LG CHEM, LTD.

The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer. 2. The modifier of claim 1 , whereinin Formula 1,{'sup': 1', '3', '6', '7, 'Rto Rare each independently a trivalent hydrocarbon group which is substituted with —RCOOR; or an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms,'}{'sup': 1', '3, 'where all Rto Rare not the trivalent hydrocarbon group; or the divalent hydrocarbon group, at the same time,'}{'sup': '4', 'Ris a single bond, or an alkylene group of 1 to 20 carbon atoms,'}{'sup': 5', '8, 'Ris a silyl group which is substituted with an alkyl group of 1 to 20 carbon atoms; halogen; a cyano group; or —COR,'}{'sup': '6', 'Ris a single bond,'}{'sup': '7', 'Ris an alkyl group of 1 to 20 carbon atoms, and'}{'sup': '8', 'Ris one selected from the group consisting of an alkoxy group of 1 to 10 carbon atoms, an aryl group of 6 to 30 carbon atoms, a heteroaryl group of 2 to 30 carbon atoms, a heterocycloalkyl group of 2 to 10 carbon atoms, a heteroamine group of 2 to 10 carbon atoms, and a disilylamino group of 3 to 10 carbon atoms.'}5. A modified and conjugated diene-based polymer claim 1 , comprising a functional group derived from the modifier according to .6. The modified and conjugated diene-based polymer of claim 5 , wherein the modified and conjugated diene-based polymer has molecular weight distribution of 2.0 to 3.5.7. The modified and conjugated diene-based polymer of claim 5 , wherein the modified and conjugated diene-based polymer has a mooney ...

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Номер записи: 88
16-11-2017 дата публикации

Process for producing olefin polymer and olefin polymer

Номер: US20170327611A1
Автор: Akiko Matsumoto, Atsushi Sakuma, Hirokazu Tanaka, Ikuko Ebisawa, Munehito Funaya, Shinsuke Kinoshita, Shinya Tanaka
Принадлежит: Mitsui Chemicals Inc

[Problem to be Solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to Problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and α-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and α-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R 1 , R 3 and R 5 to R 16 are each independently a hydrogen atom, a hydrocarbon group or the like; R 2 is a hydrocarbon group or the like; R 4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].

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Номер записи: 89
17-10-2019 дата публикации

Copolymer of 1,3,7-octatriene and isoprene, hydride thereof, and method for producing said copolymer

Номер: US20190315899A1
Автор: Shuichi Sunaga, Takashi Hori, Tomoaki Tsuji, Yasutaka Inubushi
Принадлежит: Kuraray Co Ltd

The present invention provides a copolymer of 1,3,7-octatriene and isoprene having a narrow molecular weight distribution (Mw/Mn) and a hydride thereof. Furthermore, in a production method of a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from isoprene, high raw material conversions are achieved for a short polymerization time. Specifically, the copolymer is a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from isoprene and is a copolymer having a molecular weight distribution (Mw/Mn) of less than 1.44, or the like.

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Номер записи: 90
08-10-2020 дата публикации

TIRE

Номер: US20200316996A1
Автор: KAWASHIMA Keisuke
Принадлежит: BRIDGESTONE CORPORATION

Provided is a tire having good fuel efficiency that, even though a resin material is used therein, has improved ride comfort and dry handling performance without wet performance deterioration. The tire includes an annular tire frame (), a reinforcement layer () outward of the tire frame () in a tire radial direction, and tread rubber () outward of the reinforcement layer () in the tire radial direction. The reinforcement layer () includes a reinforcement member () coated with a resin composition containing 50-100 mass % of a resin material. For the tread rubber (), a storage modulus (E′) and loss tangent (tan θ) during 1% strain at 0° C. are no greater than 30 MPa and , respectively, and a value (tan δ-tan δ) obtained by subtracting a loss tangent during 1% strain at 60° C. from a loss tangent during 1% strain at 30° C. is no greater than 0.08. 1. A tire comprising:a tire frame having an annular shape;a reinforcement layer located outward of the tire frame in a tire radial direction; andtread rubber located outward of the reinforcement layer in the tire radial direction, whereinthe reinforcement layer includes a reinforcement member that is coated with a resin composition containing from 50 mass % to 100 mass % of a resin material, and{'sub': 0° C.', '0° C.', '30° C.', '60° C.', '60° C.', '30° C., 'a storage modulus (E′) of the tread rubber during 1% strain at 0° C. is no greater than 30 MPa, a loss tangent (tan δ) of the tread rubber during 1% strain at 0° C. is no greater than 0.5, and a value (tan δ-tan δ) obtained by subtracting a loss tangent (tan δ) of the tread rubber during 1% strain at 60° C. from a loss tangent (tan δ) of the tread rubber during 1% strain at 30° C. is no greater than 0.08.'}2. The tire of claim 1 , whereina rubber composition containing from 5 parts by mass to 40 parts by mass in total of at least one selected from the group consisting of a thermoplastic resin and a softener relative to 100 parts by mass of a rubber component including at ...

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Номер записи: 91
15-11-2018 дата публикации

COMPOSITE COMPRISING A METAL COMPONENT AND A FUNCTIONAL POLYMER MATRIX

Номер: US20180326786A1
Автор: GAVARD-LONCHAY ODILE, THUILLIEZ ANNE-LISE
Принадлежит: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

The present invention relates to a composite based at least on a component having a metal surface and on a polymer matrix comprising a functional diene polymer that bears at least one aromatic group. The aromatic group is substituted by at least two hydroxyl functions, where two of the hydroxyl functions are vicinal. Such a composite has a good resistance to delamination. 1. A composite based at least on a component having a metal surface and on a polymer matrix comprising a functional diene polymer that bears at least one aromatic group , which aromatic group is substituted by at least two hydroxyl functions , where two of the hydroxyl functions are vicinal.2. A composite according to claim 1 , wherein the whole of the component is made of metal.3. A composite according to claim 1 , wherein the metal surface of the component is made from a material different from the remainder of the component.4. A composite according to claim 1 , wherein the component is made from a metal that is identical to the metal of the metal surface.5. A composite according to claim 1 , wherein the metal surface comprises iron claim 1 , copper claim 1 , zinc claim 1 , tin claim 1 , aluminium claim 1 , cobalt or nickel.6. A composite according to claim 1 , wherein the metal of the metal surface is a metal selected from the group consisting of iron claim 1 , copper claim 1 , zinc claim 1 , tin claim 1 , aluminium claim 1 , cobalt claim 1 , nickel and alloys comprising at least one of these metals.7. A composite according to claim 1 , wherein the metal of the metal surface is iron claim 1 , copper claim 1 , tin claim 1 , zinc or an alloy comprising at least one of these metals.8. A composite according to claim 1 , wherein the metal of the metal surface is steel claim 1 , brass or bronze.9. A composite according to claim 8 , wherein the steel is a carbon steel or a stainless steel.10. A composite according to claim 1 , wherein the component has a length at least equal to a millimetre.11. A ...

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Номер записи: 92
23-11-2017 дата публикации

RUBBER COMPOSITION COMPRISING A PHOSPHONATE-FUNCTIONALIZED POLYENE COPOLYMER, AND USE OF SUCH A COPOLYMER FOR IMPROVING FILLER-DIENE ELASTOMER INTERACTIONS

Номер: US20170335024A1
Автор: BOUTEVIN Gilles, Loubat Cedric, MATMOUR Rachid, RANNOUX Claire, SALIT ANNE-FRÉDÉRIQUE
Принадлежит:

Compositions comprising phosphonate-functionalized polyene copolymers and a reinforcing filler, in particular rubber compositions, and to their uses is provided. 1. A rubber composition , comprising:{'sub': 1', '2', '1', '2', '1', '6', '1', '6', '1', '5, 'a phosphonate-functionalized polyene copolymer, comprising, in its main linear chain, unsaturated units resulting from at least one conjugated polyene monomer and units substituted by a —C(O)O-A-P(O)ORORfunctional group, in which Rand R, which are identical or different, each represent a H or a C-Calkyl and A represents a (C-C)alkylene radical or a (C-C)alkylene radical containing at least one heteroatom, and;'}a reinforcing filler.3. A rubber composition according to claim 1 , characterized in that wherein the conjugated polyene monomer of the phosphonate-functionalized polyene copolymer is a conjugated diene monomer.4. A rubber composition according to claim 1 , wherein the diene monomer is inserted according to an enchainment of 1 claim 1 ,4-type or of 1 claim 1 ,2-type.5. A rubber composition according to claim 1 , wherein the phosphonate-functionalized polyene copolymer comprises from 0.1 to 30 mol % of units substituted by a —C(O)O-A-P(O)ORORfunctional group claim 1 , advantageously from 0.1 to 20 mol % of the said units.6. A rubber composition according to claim 1 , wherein the phosphonate-functionalized polyene copolymer comprises claim 1 , besides the unsaturated units resulting from conjugated polyene monomer and the units substituted by a —C(O)O-A-P(O)ORORfunctional group claim 1 , units resulting from another monomer.7. A rubber composition according to claim 6 , wherein the other monomer of the phosphonate-functionalized polyene copolymer is an ethylenic monomer.8. A rubber composition according to claim 7 , wherein the phosphonate-functionalized polyene copolymer comprises from 0 to 50 mol % of units resulting from ethylenic monomer.9. A rubber composition according to claim 1 , wherein the ...

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Номер записи: 93
30-11-2017 дата публикации

Dip-formed article

Номер: US20170342243A1
Автор: Shinji Kato
Принадлежит: Zeon Corp

Disclosed is a dip-formed article obtained by dip-molding a latex composition for dip-forming, which contains a crosslinking agent and a latex for dip-forming containing a copolymer composed of 40-80% by weight of conjugated diene monomer units (A) containing an isoprene unit, 20-45% by weight of ethylenically unsaturated nitrile monomer units (B), and 2-15% by weight of ethylenically unsaturated acid monomer units (C), and having a weight ratio of butadiene unit content to isoprene unit content that falls within the range of 60:40 to 100:0. Tear strength is at least 50 N/mm, tensile strength is at least 25 MPa, and oil swelling rate does not exceed 5%.

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Номер записи: 94
14-12-2017 дата публикации

RUBBERY BLEND CONTAINING TRANS ISOPRENE-BUTADIENE COPOLYMER

Номер: US20170355834A1
Автор: Beha Daniel Ray, Golden James Joseph, Hua Kuo-Chih, Sandstrom Paul Harry, Yang Xiaoping
Принадлежит: THE GOODYEAR TIRE & RUBBER COMPANY

The subject invention is directed towards tire components which are comprised of rubber compositions which are comprised of (1) about 2 phr to about 45 phr of a trans-1,4-isoprene-butadiene copolymer which has about 4 weight percent to about 16 weight percent butadiene repeat units and from about 84 weight percent to about 96 weight percent isoprene repeat units, wherein the trans-1,4-isoprene-butadiene copolymer has a Mooney ML 1+4 viscosity which is within the range of about 35 to about 80; and (2) about 55 phr to about 98 phr of at least one other elastomer, preferably a diene based elastomer. The most preferred tire components are those which contain cord reinforcements and require adequate green strength to enhance the tire building and shaping process to maintain cord integrity in the final cured tire. 1. A rubber composition which is comprised of (1) 3 phr to about 30 phr of a trans-1 ,4-isoprene-butadiene copolymer which contains 5 weight percent to 10 weight percent 1 ,3-butadiene repeat units and from 90 weight percent to about 95 weight percent isoprene repeat units , wherein the trans-1 ,4-isoprene-butadiene copolymer has a Mooney ML 1+4 viscosity at 100° C. which is within the range of 55 to 75 , and wherein the trans-1 ,4-isoprene-butadiene copolymer has a melting point which is within the range of 30° C. to 65° C.; and (2) 70 phr to 97 phr of at least one other elastomer.2. The rubber composition as specified in wherein the other elastomer is comprised of repeat units which are derived from isoprene.3. The rubber composition as specified in wherein the other elastomer is comprised of repeat units which are derived from 1 claim 1 ,3-butadene.4. The rubber composition as specified in wherein the other elastomer is selected from the group consisting of natural rubber claim 1 , synthetic polyisoprene homopolymer rubber claim 1 , polybutadiene rubber claim 1 , styrene-butadiene rubber claim 1 , isoprene-butadiene rubber claim 1 , styrene-isoprene rubber ...

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Номер записи: 95
22-12-2016 дата публикации

Polymerization of diene monomers

Номер: US20160369027A1
Автор: Alexandru D. ASANDEI
Принадлежит: University of Connecticut

A free radical or controlled radical polymerization process of atom or group transfer radical polymerization. The process comprises radically polymerizing one or more radically (co)polmerizable monomers in the presence of a polymerization system. The one or more radically (co)polymerizable monomers comprise at least one or more radically (co)polymerizable diene monomers. The polymerization system comprises: an initiator having one or more radically transferable atoms or groups; a transition metal-ligand complex catalyst, wherein the ligand comprises any C-, N-, O-, P- or S-containing ligand which coordinates with the transition metal; an optional reducing agent capable of regenerating the lower oxidation state of the transition metal catalyst; and an optional organic solvent or water capable of solubilizing the transition metal-ligand complex catalyst. (Co)polymers produced by the free radical or controlled radical polymerization process of atom or group transfer radical polymerization.

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Номер записи: 96
31-12-2015 дата публикации

BUTYL RUBBER IONOMER-THERMOPLASTIC GRAFT COPOLYMERS AND METHODS FOR PRODUCTION THEREOF

Номер: US20150376320A1
Автор: SIEGERS Conrad, STEEVENSZ Richard
Принадлежит:

The present invention is directed to the functionalization of butyl rubber ionomer and optionally the grafting of polyamide to halobutyl rubber ionomers. Specifically, disclosed are methods and products resulting therefrom for creating functionalized ionomers and grafting polyamide to halobutyl ionomers via reactive extrusion. The process comprises reacting a halobutyl polymer with at least one nitrogen and/or phosphorous based nucleophile to provide a halobutyl ionomer comprising conjugated diene units; grafting of an amine-reactive dienophile to said ionomer to form a functionalized ionomer; and optionally blending the resulting functionalized ionomer with polyamide. 1. A method for preparing a butyl graft copolymer which comprises:reacting a halobutyl polymer with at least one nitrogen and/or phosphorous based nucleophile to provide a halobutyl ionomer; and,grafting a non-halogenated amine-reactive dienophile to said ionomer through a reactive mixing process to provide a functionalized ionomer.2. The method according to claim 1 , wherein the halobutyl polymer comprises repeating units derived from at least one isoolefin and at least one multiolefin.3. The method according to claim 2 , wherein the isoolefin comprises isobutylene and the multiolefin comprises isoprene.5. The method according to any one of to claim 2 , wherein the at least one nitrogen and/or phosphorous based nucleophile is triphenylphosphine.6. The method according to any of to claim 2 , wherein the dienophile is maleic anhydride.7. The method according to any of to claim 2 , wherein the method further comprises pelletizing the functionalized ionomer following the grafting step.8. The method according to any of to claim 2 , wherein the reacting and grafting steps take place in an extruder.9. The method according to claim 8 , wherein the extruder operates at a temperature of from 25 to 250° C.10. The method according to or claim 8 , wherein the nitrogen and/or phosphorous based nucleophile is added ...

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Номер записи: 97
29-12-2016 дата публикации

Process for producing olefin polymer and olefin polymer

Номер: US20160376385A1
Автор: Akiko Matsumoto, Atsushi Sakuma, Hirokazu Tanaka, Ikuko Ebisawa, Munehito Funaya, Shinsuke Kinoshita, Shinya Tanaka
Принадлежит: Mitsui Chemicals Inc

[Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. Solution to problem The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and α-olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and α-olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, [in the formula [I], R 1 , R 3 and R 5 to R 16 are each independently a hydrogen atom, a hydrocarbon group or the like; R 2 is a hydrocarbon group or the like; R 4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].

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Номер записи: 98
29-12-2016 дата публикации

SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY

Номер: US20160376414A1
Автор: Minagawa Yasuhisa
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

Provided are methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, which can cost-effectively provide a variety of functions, e.g. sliding properties or liquid leakage resistance. Included is a method for surface-modifying a rubber vulcanizate or a thermoplastic elastomer as a modification target, the method including: step of forming polymerization initiation points A on a surface of the modification target; step of radically polymerizing a non-functional monomer starting from the points A to grow non-functional polymer chains; and step of forming polymerization initiation points B on a surface of the non-functional polymer chains, radically polymerizing a polymerizable silane compound starting from the points B, and further reacting a perfluoroether group-containing silane compound to grow functional polymer chains, or step ′ of adding a silane compound to a surface of the non-functional polymer chains and further reacting a perfluoroether group-containing silane compound to grow functional polymer chains. 118-. (canceled)19. A method for surface-modifying a rubber vulcanizate or a thermoplastic elastomer as a modification target , the method comprising:{'b': '1', 'step of forming polymerization initiation points A on a surface of the modification target;'}{'b': '2', 'step of radically polymerizing a non-functional monomer starting from the polymerization initiation points A to grow non-functional polymer chains; and'}{'b': 3', '3, 'step of forming polymerization initiation points B on a surface of the non-functional polymer chains, radically polymerizing a polymerizable silane compound starting from the polymerization initiation points B, and further reacting a perfluoroether group-containing silane compound to grow functional polymer chains, or step ′ of adding a silane compound to a surface of the non-functional polymer chains and further reacting a perfluoroether group-containing silane compound to grow functional polymer chains.'}20 ...

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Номер записи: 99
20-12-2018 дата публикации

METHOD OF PREPARING A POLYROTAXANE AND POLYROTAXANE

Номер: US20180362691A1
Автор: EISENBARTH Harley, FERNSCHILD Daniel, HILSCHMANN Jessica, KALI Gergely, Wenz Gerhard
Принадлежит:

The present invention relates to a method of preparing a polyrotaxane, said method comprising: 1. A method of preparing a polyrotaxane , said method comprising:performing a radical copolymerization of at least (a) a first polymerizable monomer having a stopper group, and of at least (b) a second polymerizable monomer, wherein said second monomer is complexed by a ring-shaped molecule;wherein during said copolymerization a copolymer threading said ring-shaped molecule is formed, wherein during said copolymerization said first monomer having a stopper group is incorporated into the chain of said copolymer at least partially between the ends thereof, and wherein said stopper groups prevent said ring-shaped molecule from disassembling from the copolymer; andwherein the amount of said first monomer having a stopper group is of from 0.1 mol % to 20 mol % based on 100 mol % of the total amount of polymerizable monomers.2. The method of claim 1 , said method comprising the steps of:(a) providing a composition comprising a ring-shaped molecule and the first polymerizable monomer having a stopper group;(b) combining the second polymerizable monomer with the composition of step (a) and forming a complex of said ring-shaped molecule with said second monomer; and(c) performing a radical copolymerization on the composition of step (b) to form a polyrotaxane;wherein during said copolymerization a random copolymer threading said ring-shaped molecule is formed, wherein during said copolymerization said first monomer having a stopper group is incorporated randomly along the chain of said copolymer.34-. (canceled)5. The method of claim 1 , wherein the amount of said first monomer having a stopper group is of from 0.5 mol % to 18 mol % based on 100 mol % of the total amount of polymerizable monomers.6. The method of claim 1 , said method comprising the steps of:(a) providing a composition comprising the first polymerizable monomer having a stopper group;(b) performing a radical ...

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Номер записи: 100