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公开(公告)号：US5116371A
公开(公告)日：1992-05-26
申请号：US549096
申请日：1990-07-06
摘要： An implantable prosthesis comprises a hydrogel enclosed within a flexible envelope. The hydrogel contains both hydrophilic and hydrophobic domains. It is prepared by copolymerizing a hydrophilic monomer such as water soluble N-vinylpyrrolidone, acrylates or methacrylates with non-water soluble monomers such as acrylates, methacrylates, N-vinyl carbazole, its derivatives, or a non-water soluble derivative of N-vinylpyrrolidone. The flexible envelope may be either porous or non-porous. The hydrogel may be either solid or composed of particles of a size greater than the porosity of the envelope.
摘要翻译： 可植入假体包括封闭在柔性封套内的水凝胶。 水凝胶含有亲水和疏水结构域。 通过将亲水性单体如水溶性N-乙烯基吡咯烷酮，丙烯酸酯或甲基丙烯酸酯与非水溶性单体如丙烯酸酯，甲基丙烯酸酯，N-乙烯基咔唑，其衍生物或N-乙烯基吡咯烷酮的非水溶性衍生物 。 柔性包层可以是多孔的或非多孔的。 水凝胶可以是固体，也可以由尺寸大于外壳的孔隙度的颗粒组成。
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公开(公告)号：US4526579A
公开(公告)日：1985-07-02
申请号：US505572
申请日：1983-06-17
申请人： Parviz R. Ainpour
发明人： Parviz R. Ainpour
CPC分类号： C08J7/16 , A61L29/041 , A61L31/048 , C08J2321/00
摘要： A process for grafting a hydrophilic polymer of a carboxylic acid or a salt thereof onto the surface of a natural rubber article by contacting said article in reaction inert solvent with a vinyl carboxylic acid anhydride and initiator, and subsequent washing and hydrolysis of anhydride groups to carboxylate groups and an article when prepared by the invention process.
摘要翻译： 通过使所述制品在反应惰性溶剂中与乙烯基羧酸酐和引发剂接触，然后将酸酐基团洗涤和水解成羧酸盐，将羧酸或其盐的亲水性聚合物接枝到天然橡胶制品的表面上的方法 组合物和通过本发明方法制备的物品。
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