申请人:CESKOSLOVENSKA AKADEMIE VED
公开号:EP0345794A2
公开(公告)日:1989-12-13
The invention relates to hydrophilic transparent homopolymers and cross-linked copolymers, methods for their production, and the respective monomers. Hydrophilic copolymers can be prepared by copolymerization of monomers of general formula la
wherein R is hydrogen or methyl, eventually with monomers of general formula Ila
wherein R is hydrogen or methyl, and X is O-CH2-CH2-OH, O-CH2-CH(OH)-CH3, O-CH2-CH(OH)-CH2-OH, (O-CH2-CH2)2OH, (O-CH2-CH2)3OH, O-CnH2n+1 with n = 1 to 16, NH2, NH-CH2-CH(OH)-CH3, N(C2H5)2, NH-t-C4H9, OH, ONa, OK, or ONH4.
The content of monomers of formulae la and Ila is preferably 40 to 99.99 %, wherein at least 5 % are monomers of general formula I. The copolymers are preferably cross-linked with 0.01 to 60 % of a cross-linking agent having at least two olefinic double bonds, in the presence of radical initiators.
The polymers are optimally suited for soft contact lenses and medical purposes.
本发明涉及亲水性透明均聚物和交联共聚物、其生产方法以及相应的单体。亲水共聚物可通过通式 la 的单体共聚制备。
其中 R 为氢或甲基,最终与通式 Ila 的单体共聚
其中 R 是氢或甲基,X 是 O-CH2-CH2-OH、O-CH2-CH(OH)-CH3、O-CH2-CH(OH)-CH2-OH、(O-CH2-CH2)2OH、(O-CH2-CH2)3OH、O-CnH2n+1(n = 1 至 16)、NH2、NH-CH2-CH(OH)-CH3、N(C2H5)2、NH-t-C4H9、OH、ONa、OK 或 ONH4。
式 la 和 Ila 的单体含量最好为 40%至 99.99%,其中至少 5%为通式 I 的单体。共聚物最好在自由基引发剂的作用下,用 0.01%至 60%的至少有两个烯烃双键的交联剂进行交联。
这种聚合物非常适合用于软性隐形眼镜和医疗用途。