发明授权
- 专利标题: Method for graft copolymerization to natural rubber articles
- 专利标题(中): 天然橡胶制品的接枝共聚方法
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申请号: US505572申请日: 1983-06-17
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公开(公告)号: US4526579A公开(公告)日: 1985-07-02
- 发明人: Parviz R. Ainpour
- 申请人: Parviz R. Ainpour
- 申请人地址: NY New York
- 专利权人: Pfizer Inc.
- 当前专利权人: Pfizer Inc.
- 当前专利权人地址: NY New York
- 主分类号: A61L29/04
- IPC分类号: A61L29/04 ; A61L31/04 ; C08J7/16 ; A61M25/00 ; C08L51/04
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.
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