US 12,460,100 B2
Polymer latex for the preparation of an elastomeric film having excellent stress retention properties and softness
Zhenli Wei, Johor Darul Takzim (MY); Yi-Fan Goh, Johor Darul Takzim (MY); and Zuraida Mohamad, Johor Darul Takzim (MY)
Assigned to Synthomer Sdn. Bhd., Johor Darul Takzim (MY)
Appl. No. 17/760,670
Filed by Synthomer Sdn. Bhd., Johor Darul Takzim (MY)
PCT Filed Sep. 18, 2020, PCT No. PCT/MY2020/000013
§ 371(c)(1), (2) Date Mar. 15, 2022,
PCT Pub. No. WO2021/054816, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. PI 2019005480 (MY), filed on Sep. 20, 2019.
Prior Publication US 2022/0332871 A1, Oct. 20, 2022
Int. Cl. C08F 236/10 (2006.01); C08F 2/22 (2006.01); C08F 212/10 (2006.01); C08F 220/06 (2006.01); C08F 220/44 (2006.01); C08F 220/46 (2006.01); C08F 236/06 (2006.01); C08F 236/12 (2006.01); C08L 9/04 (2006.01); C08L 9/08 (2006.01); C08L 13/02 (2006.01); C08L 55/02 (2006.01); C09D 9/04 (2006.01); C09D 109/04 (2006.01); C09D 109/08 (2006.01); C09D 113/02 (2006.01); C09D 125/10 (2006.01); C09J 109/04 (2006.01); C09J 109/08 (2006.01); C09J 113/02 (2006.01); C09J 125/10 (2006.01); C08L 9/10 (2006.01); C08L 25/10 (2006.01); C08L 53/02 (2006.01); C09D 109/10 (2006.01)
CPC C09D 109/04 (2013.01) [C08F 2/22 (2013.01); C08F 212/10 (2013.01); C08F 220/06 (2013.01); C08F 220/44 (2013.01); C08F 220/46 (2013.01); C08F 236/06 (2013.01); C08F 236/10 (2013.01); C08F 236/12 (2013.01); C08L 9/04 (2013.01); C08L 9/08 (2013.01); C08L 13/02 (2013.01); C08L 55/02 (2013.01); C09D 109/08 (2013.01); C09D 113/02 (2013.01); C09D 125/10 (2013.01); C09J 109/04 (2013.01); C09J 109/08 (2013.01); C09J 113/02 (2013.01); C09J 125/10 (2013.01); C08L 9/10 (2013.01); C08L 25/10 (2013.01); C08L 53/02 (2013.01); C08L 53/025 (2013.01); C09D 109/10 (2013.01)] 12 Claims
 
1. A polymer latex composition for preparation of an elastomeric film comprising a polymer latex obtained by free-radical emulsion polymerization of a mixture of ethylenically unsaturated monomers comprising:
a) 15 to 99 wt.-% of conjugated dienes;
b) 0 to 80 wt.-% of ethylenically unsaturated nitrile compounds;
c) 0 to 70 wt.-% of vinyl aromatic monomers, the sum of ethylenically unsaturated nitrile compounds b) and vinyl aromatic monomers c) being 0.95 to 84.95 wt.-%;
d) 0.05 to 10 wt.-% of ethylenically unsaturated acids wherein the ethylenically unsaturated acids comprise
d1) an ethylenically unsaturated acid comprising
an acid functional group; and
a spacer group separating the ethylenically unsaturated group and the acid functional group by at least 4 atoms,
wherein the acid functional group is selected from carboxylic acid groups and phosphorous-containing acid groups; and
e) 0 to 65 wt.-% of co-polymerizable ethylenically unsaturated compounds,
wherein monomers a) to e) are different from each other and the weight percentages are based on the total monomers in the mixture,
wherein monomer d) comprises an ethylenically unsaturated carboxylic acid,
wherein the composition further comprises an oxirane functional compound, and
wherein the ethylenically unsaturated acid of d1) is the sole ethylenically unsaturated acid in the mixture of ethylenically unsaturated monomers.