	US 11,945,935 B2
	Hydrophilic polymer compositions
Jianfeng Zhang, Shrewsbury, MA (US); Jian L. Ding, Stow, MA (US); Guangyu Lu, Tewksbury, MA (US); and Rachel Pytel, Newton, MA (US)
Assigned to Saint-Gobain Performance Plastics Corporation, Solon, OH (US)
Filed by Saint-Gobain Performance Plastics Corporation, Solon, OH (US)
Filed on May 8, 2020, as Appl. No. 16/870,554.
Claims priority of provisional application 62/845,286, filed on May 8, 2019.
Prior Publication US 2020/0354546 A1, Nov. 12, 2020
Int. Cl. C08L 1/28 (2006.01); A61L 15/22 (2006.01); A61L 15/60 (2006.01); A61L 29/04 (2006.01); A61L 29/06 (2006.01); A61L 29/14 (2006.01); C08J 3/00 (2006.01); C08J 3/075 (2006.01); C08L 83/04 (2006.01)

CPC C08L 1/286 (2013.01) [A61L 15/225 (2013.01); A61L 15/60 (2013.01); A61L 29/041 (2013.01); A61L 29/043 (2013.01); A61L 29/049 (2013.01); A61L 29/06 (2013.01); A61L 29/145 (2013.01); C08J 3/005 (2013.01); C08J 3/075 (2013.01); C08L 83/04 (2013.01); C08J 2301/28 (2013.01); C08J 2383/07 (2013.01); C08J 2429/04 (2013.01); C08J 2439/06 (2013.01); C08J 2483/07 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/035 (2013.01)]

27 Claims

1. An article having a major exterior surface, the article comprising an intimate mixture of

a silicone component including at least one polysiloxane, the silicone component comprising the cured product of a curable composition including one or more cross-linkable polysiloxanes and an effective amount of a cross-linking agent; and

a polymer component including at least one hydrophilic polymer having a water-absorption capacity of at least 50 wt. %;

wherein the silicone component and the polymer component are present in the mixture in a dry weight ratio within the range of 99.9:0.1 to 30:70.