WATER-PROCESSABLE SILICONE-CONTAINING PREPOLYMERS AND USES THEREOF
    10.
    发明申请
    WATER-PROCESSABLE SILICONE-CONTAINING PREPOLYMERS AND USES THEREOF 有权
    含水硅油的预处理剂及其用途

    公开(公告)号:US20160033683A1

    公开(公告)日:2016-02-04

    申请号:US14883142

    申请日:2015-10-14

    Applicant: Novartis AG

    Abstract: 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.

    Abstract translation: 本发明提供了一类可水加工的可聚合预聚物,其包含(1)衍生自至少一种含有一个含硅氧烷的单体的含硅氧烷的单体单元,所述单体具有一个亲水基团或链和/或含聚硅氧烷的交联单元,其衍生自至少一种亲水化聚硅氧烷或 链延长聚硅氧烷交联剂; (2)衍生自一种或多种亲水乙烯基单体的亲水单体单元; 和(3)约0.05%至约5%重量的各自具有侧基或末端的可聚合单元,烯属不饱和基团并且不含任何聚硅氧烷链段。 预聚物相对于预聚物的总重量包含约20重量%至约50重量%的硅氧烷,并且在水中具有至少约5重量%的高水溶性或分散性,并且适于制备硅酮水凝胶隐形眼镜。

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