Collagen gel contact lens and method of preparation
    93.
    发明授权
    Collagen gel contact lens and method of preparation 失效
    胶原凝胶隐形眼镜及其制备方法

    公开(公告)号:US4260228A

    公开(公告)日:1981-04-07

    申请号:US113856

    申请日:1980-01-21

    申请人: Teruo Miyata

    发明人: Teruo Miyata

    CPC分类号: C08K5/053

    摘要: An improved collagen gel soft contact lens is prepared from an aldehyde-crosslinked, lens-shaped collagen gel containing a water-soluble, aliphatic, monomeric, polyhydroxy compound, e.g., glucose.

    摘要翻译: 由含有水溶性,脂肪族,单体,多羟基化合物(例如葡萄糖)的醛交联的晶状体胶原凝胶制备改进的胶原凝胶软性隐形眼镜。

    Fiber-reinforced collagen composition and process for preparing same
    94.
    发明授权
    Fiber-reinforced collagen composition and process for preparing same 失效
    纤维增强胶原组合物及其制备方法

    公开(公告)号:US3806350A

    公开(公告)日:1974-04-23

    申请号:US21383271

    申请日:1971-12-29

    申请人: FREUDENBERG C

    发明人: KUHN J BOHM P

    IPC分类号: A22C13/00 C08L89/06 C08H7/00

    CPC分类号: A22C13/0016 C08L89/06

    摘要: AQUEOUS SWOLLEN COLLAGEN OF DOUGH--LIKE CONSISTENCY IS RAISED IN PH WHEREUPON IT DE-SWELLS OR SHRINKS. FIBER REINFORCEMENT CAN THEN BE STIRRED INTO THE AQUEOUS PHASE. UPON RE-ACIDFICATION, THE COLLAGEN AGAIN SWELLS WITH THE FIBER RE-INFORCEMENT DISTRIBUTED SUBSTANTIALLY UNIFORMLY THERETHROUGH. IF DESIRED, A DISPERSION OF AN ESTER OF POLYACRYLIC ACID OR POLYVINYLIDENE CHLORIDE CAN BE INCORPORATED IN THE MASS, PREFERABLY BEFORE RE-SWELLING. THE PRODUCT CAN THEN BE SHAPED IN KNOWN MANNER, AS BY EXTRUSION, AND DE-WATERED AS BY COAGULATION AND/OR DRYING.