申请人:Menicon Co., Ltd.
公开号:EP0989138A2
公开(公告)日:2000-03-29
An ocular lens material comprising a silicone compound having a zwitterionic group (I) represented by the formula (I):
wherein R1 is H or an alkyl, R2 is an aliphatic hydrocarbon or an aromatic hydrocarbon, A1 is O, S, NH or direct bond, A2 is POO- or SOO- , A3 is O, S, NH or =O, in which when A2 is SOO-, A1 and A3 are not S, and when A3 is =O, R2 is absent, each of p and q is 1 to 20; a zwitterionic group (II) represented by the formula (II):
wherein R3 is H or an alkyl, A4 is O, S, NH or direct bond, each of r, s and t is 1 to 20; or a zwitterionic group (III) represented by the formula (III):
wherein R4 is H or an alkyl, each of A5 and A6 is O, S, NH or direct bond, in which A5 and A6 are not direct bonds at the same time, u is 1 to 20, and a process for producing the same. The ocular lens material shows excellent transparency, oxygen permeability, deposit resistance and wettability to tears at the same time.
一种眼球晶状体材料,包含一种具有由式 (I) 表示的齐聚物基团 (I) 的硅酮化合物:
其中 R1 是 H 或烷基,R2 是脂肪族烃或芳香族烃,A1 是 O、S、NH 或直接键,A2 是 POO- 或 SOO- ,A3 是 O、S、NH 或 =O,其中当 A2 是 SOO- 时,A1 和 A3 不是 S,当 A3 是 =O 时,R2 不存在,p 和 q 各为 1 至 20;由式(II)表示的齐聚物基团(II):
其中 R3 是 H 或烷基,A4 是 O、S、NH 或直接键,r、s 和 t 各为 1 至 20;或由式(III)代表的齐聚物基团(III):
其中 R4 为 H 或烷基,A5 和 A6 各为 O、S、NH 或直接键,其中 A5 和 A6 不同时为直接键,u 为 1 至 20,以及生产该基团的工艺。该眼球晶状体材料同时具有优异的透明度、透氧性、抗沉积性和泪液湿润性。