公开(公告)号：US20210179836A1

公开(公告)日：2021-06-17

申请号：US16079584

申请日：2017-03-06

Applicant: DSM IP ASSETS B.V.

Inventor： Tijs NABUURS ,  Willem-Jan SOER ,  Maud KASTELIJN

IPC: C08L33/12 ,  C09D151/00

Abstract: The present invention relates to a process for preparing an aqueous binder composition, as well as the aqueous binder composition comprising a carboxylic acid-functional vinyl polymer (polymer A) and vinyl polymer (polymer B).

公开(公告)号：US20210147594A1

公开(公告)日：2021-05-20

申请号：US16629746

申请日：2018-07-02

Applicant: DSM IP Assets B.V.

Inventor： Maud KASTELIJN ,  Tijs NABUURS

IPC: C08F220/06 ,  C08F220/14 ,  C08F220/18 ,  C08F220/56 ,  C08F2/22 ,  C08F2/38 ,  C08K5/372 ,  C08L33/12 ,  C09D133/12

Abstract: The current invention relates to a process for preparing an aqueous binder composition, the process comprising at least the following steps A) and B): A) preparing carboxylic acid-functional vinyl polymer (Polymer A) by emulsion polymerisation of a monomer composition A comprising the following monomers: Ai) at least one carboxylic acid functional olefinically unsaturated monomer; and Aii) at least one olefinically unsaturated monomer different than Ai); B) preparing vinyl polymer (Polymer B) by emulsion polymerization of a monomer composition B in the presence of Polymer A where the monomer composition B comprises the following monomer(s): Bi) at least one olefinically unsaturated monomer; Bii) optionally carboxylic acid functional olefinically unsaturated monomer different than Bi); where at least part of the carboxylic acid groups of Polymer A are deprotonated to obtain ionic or potentially ionic water-dispersing groups; where the acid value of Polymer B is lower than the acid value of Polymer A; where the weight average molecular weight (Mw) of Polymer B is higher than the weight average molecular weight (Mw) of Polymer A; where the glass transition temperature of Polymer B is equal to or lower than that of Polymer A; where the weight ratio of Polymer A to Polymer B is in the range of from 5:95 to 95:5; and whereby step A) comprises at least a first polymerisation stage of a monomer composition A1 effected in the presence of a chain transfer agent C1 having a water solubility of at least 5 g/L and a subsequent second polymerisation stage of a monomer composition A2 effected in the presence of a chain transfer agent C2 having a water solubility of at most 0.5 g/L, and whereby the second polymerisation stage of step A) is effected in the optional further presence of chain transfer agent C1 having a water solubility of at least 5 g/L whereby the concentration of chain transfer agent C1 having a water solubility of at least 5 g/L in the second polymerisation stage of step A) is at most 35 mole-%, relative to the total molar concentration of chain transfer agent C1 and chain transfer agent C2 present in the second polymerisation stage of step A).

公开(公告)号：US20170044391A1

公开(公告)日：2017-02-16

申请号：US15306279

申请日：2015-04-23

Applicant: DSM IP ASSETS B.V.

Inventor： Rajasingham SATGURUNATHAN ,  Jurgen SCHEERDER ,  Gerardus Cornelis OVERBEEK ,  Roel Johannes Marinus SWAANS ,  Ronald TENNEBROEK ,  Tijs NABUURS ,  Maud KASTELIJN ,  Hinrike MALDA

IPC: C09D133/12 ,  C09D125/14 ,  C09D133/08 ,  C08L25/14 ,  C08L33/12 ,  C08L33/08

CPC classification number: C09D133/12 ,  C08L25/14 ,  C08L33/08 ,  C08L33/12 ,  C08L2205/03 ,  C09D125/14 ,  C09D133/08 ,  C09D133/10 ,  C08L33/10 ,  C08L75/04 ,  C08L75/12 ,  C08L2201/50 ,  C08L2201/52 ,  C08L2201/54 ,  C08L2205/025 ,  C08L2312/00

Abstract: An aqueous polymer composition which when in the form of a film shows excellent elongation at break comprising (i) 5 to 30 wt. % of polyurethane where the acid value of the polyurethane is between 3 to 40 mg KOH/g; (ii) 70 to 95 wt. % of vinyl polymer comprising 20 to 90 wt. % of vinyl polymer with Tg

Abstract translation: 当以薄膜形式显示出优异的断裂伸长率的含水聚合物组合物包含（i）5-30wt。 聚氨酯的酸值在3至40mg KOH / g之间的聚氨酯的％; （ii）70〜95重量％ ％的乙烯基聚合物包含20至90wt。 ％的Tg <20℃的乙烯基聚合物。 10〜80重量％ ％的Tg≥20℃的乙烯基聚合物的％。 其中至少一种乙烯基聚合物含有酸值在15和240mg KOH / g范围内的酸官能团。