Invention Grant
- Patent Title: Hydrophilic polymer compositions
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Application No.: US16870554Application Date: 2020-05-08
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Publication No.: US11945935B2Publication Date: 2024-04-02
- Inventor: Jianfeng Zhang , Jian L. Ding , Guangyu Lu , Rachel Pytel
- Applicant: Saint-Gobain Performance Plastics Corporation
- Applicant Address: US OH Solon
- Assignee: Saint-Gobain Performance Plastics Corporation
- Current Assignee: Saint-Gobain Performance Plastics Corporation
- Current Assignee Address: US OH Solon
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: C08L1/28
- IPC: C08L1/28 ; A61L15/22 ; A61L15/60 ; A61L29/04 ; A61L29/06 ; A61L29/14 ; C08J3/00 ; C08J3/075 ; C08L83/04

Abstract:
The present disclosure relates to methods for preparing a hydrophilic composition including intimately mixing a silicone component including at least one polysiloxane and a polymer component, and to hydrophobic polymer compositions prepared thereby. One aspect of the disclosure provides an article having a major exterior surface, the article comprising an intimate mixture of a silicone component including at least one polysiloxane; 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. In certain desirable embodiments as otherwise described herein, the intimate mixture is disposed at an exterior surface of the article, e.g., at the major exterior surface of the article.
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