发明授权
- 专利标题： Water-processable silicone-containing prepolymers and uses thereof
- 专利标题（中）： 可水加工的含硅氧烷预聚物及其用途
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申请号： US13253186申请日： 2011-10-05
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公开(公告)号： US09187601B2公开(公告)日： 2015-11-17
- 发明人: Jinyu Huang , Frank Chang , Robert Scott , Arturo Norberto Medina , Manivakkam J. Shankernarayanan , Selma Kuyu , Dawn Alison Smith , Daqing Wu
- 申请人： Jinyu Huang , Frank Chang , Robert Scott , Arturo Norberto Medina , Manivakkam J. Shankernarayanan , Selma Kuyu , Dawn Alison Smith , Daqing Wu
- 申请人地址： CH Basel
- 专利权人： Novartis AG
- 当前专利权人： Novartis AG
- 当前专利权人地址： CH Basel
- 代理商 Jian Zhou
- 主分类号： C08F230/08
- IPC分类号： C08F230/08 ; C08G77/42 ; C08G77/442 ; C08L83/10 ; G02B1/04 ; C08G77/20
摘要：
The invention provide a class of water-processable polymerizable prepolymers which comprises (1) siloxane-containing monomeric units derived at least one siloxane containing monomer having one hydrophilic group or chain and/or polysiloxane-containing crosslinking units derived from at least one hydrophilized polysiloxane or chain-extended polysiloxane crosslinker; (2) hydrophilic monomeric units derived from one or more hydrophilic vinylic monomers; and (3) from about 0.05% to about 5% by weight of polymerizable units each having a pendant or terminal, ethylenically-unsaturated group and free of any polysiloxane segment. The prepolymer comprises from about 20% to about 50% by weight of silicone relative to the total weight of the prepolymer and has a high water solubility or dispersibility of at least about 5% by weight in water and suitable for making silicone hydrogel contact lenses.
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