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1. 发明申请

WO2012143695A3 POLYMERS FOR CONTACT LENSES 审中-公开
标题翻译：聚合物用于接触镜片
公开(公告)号：WO2012143695A3
公开(公告)日：2013-01-03
申请号：PCT/GB2012000391
申请日：2012-04-19
申请人： OCUTEC LTD , RASHID ABDUL , GRAHAM NEIL , BOWERS RODERICK
发明人： RASHID ABDUL , GRAHAM NEIL , BOWERS RODERICK
IPC分类号： C08G18/28 , C08G18/48 , C08G18/66 , G02B1/04
CPC分类号： C08G18/283 , C08G18/284 , C08G18/2865 , C08G18/4833 , C08G18/6674 , C08G18/6677 , C08G2101/0091 , C08G2210/00 , G02B1/043 , C08L75/04
摘要： The present invention relates to a polyurethane polymer compositions comprising polyethylene glycol) monoalkyl ether. The compositions may be either crosslinked (suitable for reaction cast moulding) or thermoplastic (suitable for injection and/or compression moulding). Either of the above varieties may contain carbinol terminated polydimethyl siloxane components. There is also provided a process for preparing such a polyurethane polymer composition. The invention also relates to a process for preparing a polyurethane xerogel in the form of a molded article, said process comprising the steps of. i. preparing a mixture of a. at least one poly(ethylene glycol) and/or at least one polyol or macropolyol having a functionality greater than 2, or a mixture of such polyols or macropolyols having a functionality of greater than 2, b. at least one di-or poly-isocyanate, c. optionally at least one OH-terminated chain extender, d. optionally an additional compound comprising at least one hydroxyl group and at least one primary or secondary amine group, and e. at least one poly(ethylene glycol) monoalkyl ether; ii. dispensing the reaction mixture formed in step i) into a mold; iii. allowing the reaction mixture to react and cure; iv. removing the molded article from the mold; and v. hydrating the molded article. Optionally the process may comprise the step of hydrating the molded article to form a hydrated article.
摘要翻译：本发明涉及包含聚乙二醇单烷基醚的聚氨酯聚合物组合物。组合物可以是交联的（适合于反应浇铸成型）或热塑性的（适合于注射和/或压塑）。上述任何一种都可能含有甲醇封端的聚二甲基硅氧烷组分。还提供了制备这种聚氨酯聚合物组合物的方法。本发明还涉及一种制备模塑制品形式的聚氨酯干凝胶的方法，所述方法包括以下步骤。一世。准备一种混合物。 b）具有官能度大于2的至少一种聚（乙二醇）和/或至少一种多元醇或大多元醇，或这些多官能团或大分子多醇的混合物，b。至少一种二异氰酸酯或多异氰酸酯，c。任选地至少一个OH-封端的扩链剂，d。任选的包含至少一个羟基和至少一个伯或仲胺基团的另外的化合物，至少一种聚（乙二醇）单烷基醚; II。将步骤i）中形成的反应混合物分配到模具中; III。使反应混合物反应并固化; IV。将模制品从模具中取出; 和v。水合成型制品。任选地，该方法可以包括水合模塑制品以形成水合制品的步骤。

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