US 11,814,535 B2
Clay-polyacrylate composites suspension via in situ polymerization
Xu Li, Singapore (SG); Yu Zhang, Singapore (SG); Ming Yan Tan, Singapore (SG); Siew Yee Wong, Singapore (SG); and Xi Kui Zhang, Singapore (SG)
Assigned to Agency for Science, Technology and Research, Singapore (SG)
Filed by Agency for Science, Technology and Research, Singapore (SG)
Filed on Feb. 27, 2023, as Appl. No. 18/114,947.
Application 18/114,947 is a division of application No. 16/493,555, granted, now 11,597,852, previously published as PCT/SG2018/050115, filed on Mar. 14, 2018.
Claims priority of application No. 10201702064P (SG), filed on Mar. 14, 2017.
Prior Publication US 2023/0227688 A1, Jul. 20, 2023
Int. Cl. C09D 133/14 (2006.01); C08F 292/00 (2006.01); C08F 2/44 (2006.01); C08F 2/18 (2006.01); C08K 5/14 (2006.01); C08K 5/5425 (2006.01); C08K 9/04 (2006.01); C08K 3/34 (2006.01); C08F 220/18 (2006.01)
CPC C09D 133/14 (2013.01) [C08F 2/18 (2013.01); C08F 2/44 (2013.01); C08F 220/1808 (2020.02); C08F 292/00 (2013.01); C08K 3/346 (2013.01); C08K 5/14 (2013.01); C08K 5/5425 (2013.01); C08K 9/04 (2013.01); C08F 220/1806 (2020.02)] 5 Claims
 
1. A method of synthesizing a polymeric clay composition for coating, comprising the steps of:
(i) producing a clay-polyacrylate composite comprising:
one or more layers of clay intercalated with polyacrylate;
wherein the one or more layers of clay comprises at least one organosilane coupling agent comprising an acrylate moiety;
wherein the at least one organosilane coupling agent is attached to a surface of the one or more layers of clay and the polyacrylate is covalently attached to the organosilane coupling agent; and
wherein the polyacrylate consists of a first acrylate monomer and a second acrylate monomer having different solubility, wherein the first acrylate monomer is a hydrophilic acrylate monomer comprising a hydroxyl (—OH) group and the second acrylate monomer is a hydrophobic acrylate monomer which repels water; and
(ii) mixing the clay-polyacrylate composite with a solution comprising a polymer to form the polymeric clay composition, wherein the polymer is miscible with the polyacrylate of the clay-polyacrylate composite.