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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 24. Отображено 24.
03-06-2010 дата публикации

AQUEOUS OLIGOMER / POLYMER EMULSION WITH CATIONIC FUNCTIONALITY

Номер: US20100136353A1
Принадлежит: DSM IP ASSETS BV

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35.

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02-08-2012 дата публикации

ADHESION TO PLASTIC WITH BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20120196143A1
Принадлежит: DSM IP Assets B.V.

An aqueous coating composition (which optionally can coat plastic substrates) the composition comprising a block copolymer and a polymer P; where the block copolymer comprises at least blocks [A] x [B] y ; where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism (optionally in solution in the presence of a control agent and a source of free radicals); and wherein block [A] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing water-dispersing functional groups; wherein block [B] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing plastic adhesion promoting functional groups; and wherein polymer P is prepared in the presence of blocks [A] x [B] y . The compositions may be used to coat plastic substrates, foam; surfaces having low surface energy, hydrophobic substrates and/or polyolefins.

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16-11-2010 дата публикации

Aqueous vinyl coating compositions

Номер: US0007833584B2

Aqueous coating composition comprising a blend of 20 to 60 wt % of a multistage vinyl polymer (A) comprising 5 to 40 wt % of at least one hard polymer stage (i) having a Tg50° C. and 95 to 60 wt % of at least one soft polymer stage (ii) having a Tg5° C.; and 80 to 40 wt % of a vinyl oligomer-polymer (B) comprising 15 to 50 wt % of at least one alkaline soluble oligomer (iii) and 85 to 50 wt % of at least one vinyl polymer (iv) having a Tg in the range of from 20 to 30° C.

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12-05-2011 дата публикации

ADHESION TO PLASTIC WITH BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20110111244A1
Принадлежит:

An aqueous coating composition (which optionally can coat plastic substrates) the composition comprising a block copolymer and a polymer P; where the block copolymer comprises at least blocks [A]x[B]y; where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism (optionally in solution in the presence of a control agent and a source of free radicals); and wherein block [A] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing water-dispersing functional groups; wherein block [B] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing plastic adhesion promoting functional groups; and wherein polymer P is prepared in the presence of blocks [A]x[B]y. The compositions may be used to coat plastic substrates, foam; surfaces having low surface energy, hydrophobic substrates and/or polyolefins.

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27-01-2011 дата публикации

WATER BORNE CROSSLINKABLE BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20110021689A1
Принадлежит:

There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A]x[B]y (where x is an integer from 3 to 80 (inc.), where y is an integer ≧10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ≦150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A]x[B]y by an emulsion polymerisation process.

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14-02-2017 дата публикации

Water-borne crosslinkable block copolymers obtained using raft

Номер: US0009567476B2

There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A] x [B] y (where x is an integer from 3 to 80 (inc.), where y is an integer ≧10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ≦150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A] x [B] y by an emulsion polymerisation process.

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09-02-2016 дата публикации

Adhesion to plastic with block copolymers obtained using RAFT

Номер: US0009255211B2
Принадлежит: DSM IP ASSETS B.V.

An aqueous coating composition (which optionally can coat plastic substrates) the composition comprising a block copolymer and a polymer P; where the block copolymer comprises at least blocks [A]x[B]y; where at least block [A] is obtained by a controlled radical polymerization of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism (optionally in solution in the presence of a control agent and a source of free radicals); and wherein block [A] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing water-dispersing functional groups; wherein block [B] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing plastic adhesion promoting functional groups; and wherein polymer P is prepared in the presence of blocks [A]x[B]y. The compositions may be used to coat plastic substrates, foam; surfaces having low surface energy, hydrophobic substrates and/or polyolefins.

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30-06-2011 дата публикации

ADHESION TO METAL SURFACES WITH BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20110159306A1
Принадлежит:

An aqueous, metal, coating composition (and process for obtaining it) comprising a block copolymer and a polymer P; wherein the block copolymer comprises at least blocks [A]x[B]y, where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where (a) block [A] comprises (i) 0 to 80 mol % of metal adhering ethylenically unsaturated monomers; (ii) 0 to 100 mol % of water dispersible ethylenically unsaturated monomers; (iii) 0 to 70 mol % of C1 to C30 hydrocarbo (meth)acrylate and/or styrenic monomers; (iv) 0 to 35 mol % of ethylenically unsaturated monomer different from i), ii)+iii); where the amount of at least one of i), ii), iii)+iv) is >0 mol %; block [A] has a Hansch parameter <1.5; and an average degree of polymerisation x, (x=3 to 80); (b) block [B] comprises: i) 0 ...

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08-11-2012 дата публикации

AQUEOUS OLIGOMER/POLYMER EMULSION WITH CATIONIC FUNCTIONALITY

Номер: US20120282212A1
Принадлежит: DSM IP Assets B.V

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35.

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17-05-2016 дата публикации

Aqueous oligomer / polymer emulsion with cationic functionality

Номер: US0009340699B2
Принадлежит: DSM IP ASSETS B.V., DSM IP ASSETS BV

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35.

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25-08-2011 дата публикации

AQUEOUS DISPERSIONS CONTAINING CRYSTALLISABLE BLOCK COPOLYMERS

Номер: US20110207871A1
Принадлежит: DSM IP ASSETS B.V.

An aqueous dispersion comprising a crystallisable vinyl block copolymer-polymer which comprises: i) a vinyl block copolymer comprising at least blocks [A] x [B] y , wherein at least a crystallisable block [A] is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution, in the presence of a control agent and a source of free radicals; and wherein the vinyl block copolymer comprises 2 to 50 wt % of vinyl monomers bearing at least a crystallisable side chain by weight of the vinyl block copolymer-polymer; wherein crystallisable block [A] has an average degree of polymerisation x, wherein x is an integer in the range of from 3 to 80; wherein block [B] has an average degree of polymerisation y, wherein y is an integer ≦3; and ii) a vinyl polymer [P] obtained by the free radical emulsion polymerisation of one or more vinyl monomers in the presence of the vinyl block copolymer; and wherein the block copolymer:polymer weight ratio is in the range of from 10:90 to 70:30.

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12-03-2009 дата публикации

Aqueous Vinyl Coating Compositions

Номер: US20090068367A1
Принадлежит:

Aqueous coating composition comprising a blend of 20 to 60 wt % of a multistage vinyl polymer (A) comprising 5 to 40 wt % of at least one hard polymer stage (i) having a Tg≧50° C. and 95 to 60 wt % of at least one soft polymer stage (ii) having a Tg≦−5° C.; and 80 to 40 wt % of a vinyl oligomer-polymer (B) comprising 15 to 50 wt % of at least one alkaline soluble oligomer (iii) and 85 to 50 wt % of at least one vinyl polymer (iv) having a Tg in the range of from −20 to 30° C.

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13-06-2013 дата публикации

WATER-BORNE CROSSLINKABLE BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20130150528A1
Принадлежит: DSM IP ASSETS B.V.

There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A][B](where x is an integer from 3 to 80 (inc.), where y is an integer ≧10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ≦150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A][B]by an emulsion polymerisation process. 1. A process for obtaining a water-borne non-biologically active crosslinkable composition comprising a block copolymer comprising at least blocks [A][B]and a polymer P , the block copolymer-polymer composition having an acid value ≦150 mg KOH per g of block copolymer-polymer , where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals;where block [A] comprises:i) 0 to 50 mol % of ethylenically unsaturated monomer units bearing crosslinking functional groups;ii) 50 to 100 mol % ethylenically unsaturated monomer units bearing water-dispersing functional groups;{'sub': '1-18', 'iii) 0 to 50 mol % of ethylenically unsaturated monomers units selected from Calkyl(meth)acrylate monomers and styrenic monomers;'}iv) 0 to 35 mol % of ethylenically unsaturated monomers units different from those from i), ii)+iii); block [A] has a Hansch parameter<1.5; and', 'block [A] has an average degree of polymerisation x, where x is an integer from 3 to 80;, 'where i), ii), iii)+iv) add up to 100%;'}where block [B] comprises:i) 5 to 80 mol % of ...

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29-08-2013 дата публикации

AQUEOUS OLIGOMER / POLYMER EMULSION WITH CATIONIC FUNCTIONALITY

Номер: US20130224509A1
Принадлежит: DSM IP ASSETS B.V.

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35. 1. An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups and/or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by radical emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35.2. An aqueous emulsion according to claim 1 , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomer bearing quaternary ammonium ion functional groups.3. An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer claim 1 , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in the presence of a ...

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26-12-2013 дата публикации

ACRYLIC POLYMER

Номер: US20130344019A1
Автор: Geurts John J., Weber Dirk
Принадлежит: DSM IP ASSETS B.V.

The present invention relates to acrylic emulsion polymers as well as to their use in hair care preparations such as in particular in hair styling preparations. 1. A process for the preparation of acrylic emulsion polymers comprising subjecting a monomer composition consisting of a mixture of methacrylic acid , ethyl acrylate and n-butyl methacrylate to emulsion polymerization.2. The process according to characterized in that the monomer composition consists of a mixture of 10-30 wt.-% of methacrylic acid claim 1 , 5-15 wt.-% of ethyl acrylate and 60-80 wt.-% of n-butyl methacrylate.3. The process according to characterized in that the monomer composition consists of a mixture of 15-25 wt.-% of methacrylic acid claim 1 , 8-12 wt.-% of ethyl acrylate 65-75 wt.-% of n-butyl methacrylate.4. The process according to characterized in that the monomer composition consists of a mixture of 18-23 wt.-% of methacrylic acid claim 1 , 9-11 wt.-% of ethyl acrylate and 67-72 wt.-% of n-butyl methacrylate.5. Acrylic emulsion polymer obtainable by a process according to6. Acrylic emulsion polymer according to having a molecular weight between 75 and 200 kDalton and a glass transition temperature between 70-120° C.7. Acrylic emulsion polymer according to characterized in that the polymer is neutralized with 2-amino-2-methyl-1-propanol and has a neutralization level of 100%.8. An aqueous dispersion of an acrylic emulsion polymer according to claim 5 , wherein the dispersion has a polymer solid content of about 35 to 45 wt.-% and a methylisothiazoline content of about 30 to 50 ppm.9. A cosmetic composition comprising at least one acrylic emulsion polymer according to .10. The cosmetic composition according to characterized in that said composition comprises the at least one acrylic emulsion polymer in an amount of 0.01-20 wt.-% claim 9 , preferably in an amount of 0.05-10 wt.-% claim 9 , based on the total weight of the cosmetic composition.11. The cosmetic composition according to ...

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06-02-2014 дата публикации

ADHESON TO PLASTIC WITH BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20140037975A1
Принадлежит: DSM IP ASSETS B.V.

An aqueous coating composition (which optionally can coat plastic substrates) the composition comprising a block copolymer and a polymer P; where the block copolymer comprises at least blocks [A][B]; where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism (optionally in solution in the presence of a control agent and a source of free radicals); and wherein block [A] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing water-dispersing functional groups; wherein block [B] comprises 20 to 100 mol % of ethylenically unsaturated monomer units bearing plastic adhesion promoting functional groups; and wherein polymer P is prepared in the presence of blocks [A][B]. The compositions may be used to coat plastic substrates, foam; surfaces having low surface energy, hydrophobic substrates and/or polyolefins. 1. A process for preparing an aqueous coating composition comprising a block copolymer and a polymer P; wherein the block copolymer comprises at least blocks [A][B] , where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism;where block [A] comprises:i) 0 to 50 mol % of ethylenically unsaturated monomer units bearing crosslinking functional groups;ii) 20 to 100 mol % of ethylenically unsaturated monomer units bearing water-dispersing functional groups;{'sub': 1', '8, 'iii) 0 to 50 mol % of ethylenically unsaturated monomers units selected from linear or branched Cto Calkyl(meth)acrylate monomers;'}iv) 0 to 5 mol % of ethylenically unsaturated monomer units bearing plastic adhesion promoting functional groups; andv) 0 to 10 mol % of ethylenically unsaturated monomers units different from those from i), ii), iii)+iv);where i), ii), iii), iv)+v) add up to 100%;block [A] has ...

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08-05-2014 дата публикации

AQUEOUS OLIGOMER / POLYMER EMULSION WITH CATIONIC FUNCTIONALITY

Номер: US20140127153A1
Принадлежит: DSM IP ASSETS B.V.

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35. 1. An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups and/or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by radical emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5:99.5 to 65:35.2. An aqueous emulsion according to claim 1 , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomer bearing quaternary ammonium ion functional groups.3. An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer claim 1 , wherein said vinyl oligomer comprises 5 to 85 mol % of vinyl monomers bearing quaternary ammonium ion functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in the presence of a ...

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19-06-2014 дата публикации

ADHESION TO METAL SURFACES WITH BLOCK COPOLYMERS OBTAINED USING RAFT

Номер: US20140170428A1
Принадлежит: DSM IP ASSETS B.V.

An aqueous, metal, coating composition (and process for obtaining it) comprising a block copolymer and a polymer P; wherein the block copolymer comprises at least blocks [A][B], where at least block [A] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where (a) block [A] comprises (i) 0 to 80 mol % of metal adhering ethylenically unsaturated monomers; (ii) 0 to 100 mol % of water dispersible ethylenically unsaturated monomers; (iii) 0 to 70 mol % of Cto Chydrocarbo (meth)acrylate and/or styrenic monomers; (iv) 0 to 35 mol % of ethylenically unsaturated monomer different from i), ii)+iii); where the amount of at least one of i), ii), iii)+iv) is >0 mol %; block [A] has a Hansch parameter <1.5; and an average degree of polymerisation x, (x=3 to 80); (b) block [B] comprises: i) 0 to 50 mol % of metal adhering ethylenically unsaturated monomers; ii) 0 to 15 mol % of water dispersible ethylenically unsaturated monomers; iii) 20 to 100 mol % of Cto Chydrocarbo(meth)acrylate and/or styrenic monomers; iv) 0 to 35 mol % of ethylenically unsaturated monomers units different from those from i), ii)+iii); where block [B] has a Hansch parameter ≧1.5; and block [B] an average degree of polymerisation y (y≧10 and >x); and (c) polymer P is obtained by an emulsion polymerisation process in the presence of the block copolymer [A][B] and comprises: i) 0 to 5 wt % of metal adhering ethylenically unsaturated monomers; ii) 0 to 15 wt % of water dispersible ethylenically unsaturated monomers; iii) 50 to 100 wt % Cto Chydrocarbo (meth)acrylate and/or styrenic monomers; and iv) 0 to 35% by weight of ethylenically unsaturated monomers units different from those from i), ii)+iii). 1. An aqueous , metal , coating composition comprising a block copolymer and an emulsion polymer P; wherein the ...

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22-09-2011 дата публикации

WATERPROOF DISPERSIONS CONTAINING CRYSTALLIZABLE BLOCK COPOLYMERS.

Номер: ES2365106T3
Принадлежит: DSM IP ASSETS BV

Una dispersión acuosa que comprende un copolímero de bloques-polímero vinílico cristalizable que comprende: i) un copolímero de bloques vinílico que comprende al menos bloques [A]x[B]y, en el que al menos un bloque cristalizable [A] se obtiene mediante una polimerización radicálica controlada de al menos un monómero vinílico vía un mecanismo de transferencia de cadena por adición-fragmentación reversible (RAFT) en disolución, en presencia de un agente de control y una fuente de radicales libres; y en el que el copolímero de bloques vinílico comprende 2 a 45% en peso de monómeros vinílicos que tienen al menos una cadena lateral cristalizable por peso del copolímero de bloques-polímero vinílico; en el que los monómeros vinílicos que poseen cadenas laterales cristalizables son monómeros con cadenas laterales que contienen en total al menos 5 veces tantos átomos de carbono como la cadena principal del monómero; en el que el bloque cristalizable [A] tiene un grado medio de polimerización x, en el que x es un número entero en el intervalo de 3 a 80; en el que el bloque [B] tiene un grado medio de polimerización y, en el que y es un número entero >= 3; y ii) un polímero vinílico [P] obtenido mediante la polimerización en emulsión por radicales libres de uno o más monómeros vinílicos en presencia del copolímero de bloques vinílico; y en el que la relación en peso de copolímero de bloques:polímero está en el intervalo de 10:90 a 70:30. An aqueous dispersion comprising a block copolymer-crystallizable vinyl polymer comprising: i) a vinyl block copolymer comprising at least blocks [A] x [B] y, wherein at least one crystallizable block [A] is obtained by controlled radical polymerization of at least one vinyl monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution, in the presence of a control agent and a source of free radicals; and wherein the vinyl block copolymer comprises 2 to 45% by weight of vinyl monomers having at least one ...

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16-12-2009 дата публикации

Aqueous oligomer / polymer emulsion with cationic functionality

Номер: EP2132243A1
Принадлежит: DSM IP ASSETS BV

An aqueous emulsion comprising at least a covalently bound vinyl oligomer and vinyl polymer, wherein said vinyl oligomer comprises 5 to 85 mol% of vinyl monomers bearing quaternary ammonium ion functional groups or quaternisable amine functional groups and is obtained by a controlled radical polymerisation of at least one vinyl monomer via a reversible addition-fragmentation chain transfer mechanism in solution in the presence of a control agent and a source of free radicals; wherein said vinyl polymer is obtained by emulsion polymerisation of vinyl monomers in the presence of the vinyl oligomer; wherein the weight % ratio of vinyl oligomer to vinyl polymer is in the range of from 0.5 : 99.5 to 65 : 35.

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23-07-2009 дата публикации

Solvent borne crosslinkable block copolymers obtained using raft

Номер: WO2009090253A1
Принадлежит: DSM IP ASSETS B.V.

There is disclosed a process for obtaining a solvent-borne crosslinkable block copolymer comprising at least blocks [A]x[B]y[C]z, said block copolymer having an acid value < 20 mgKOH/g, where at least blocks [A][B][C] are obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; where blocks [A] and [C] may be the same or different; [A] has an average degree of polymerisation (DP) of x, where x is an integer from 3 to 40 (inc.); [B] has an DP of y, where y is an integer > 5; [C] has an DP of z, where z is an integer > 3 and each of the blocks [A], [B] and [C] are solvent soluble.

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15-09-2008 дата публикации

Wässrige vinylbeschichtungszusammensetzungen

Номер: ATE407962T1
Принадлежит: DSM IP ASSETS BV

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23-10-2008 дата публикации

Wässrige vinylbeschichtungszusammensetzungen

Номер: DE602006002735D1
Принадлежит: DSM IP ASSETS BV

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