Novel vinyl carbonate and vinyl carbamate contact lens material monomers
申请人:Bausch & Lomb Incorporated
公开号:US05070215A1
公开(公告)日:1991-12-03
Novel monomers of the general formula ##STR1## where b is 0 or 1, a is 1, 2, 3 or 4, R.sup.2 is a monovalent alkyl radical and R is an organic radical. The novel monomers may be employed to produce novel copolymers useful as hydrogel, soft non-hydrogel and/or rigid gas permeable contact lens materials.
Vinyl carbonate and vinyl carbamate monomers for a contact lens material
申请人:BAUSCH & LOMB INCORPORATED
公开号:EP0757033A2
公开(公告)日:1997-02-05
There is provided a compound of the general formula:
wherein
a is 1, 2, 3 or 4;
X is -O-, -S- or -NR3-;
R3 is H or a monovalent alkyl radical; and
R is selected from an organosilicon radical, a heterocyclic-containing radical, an adamantyl-containing radical, an alkylene radical, a fluoroalkylene radical and a hydroxyalkyl radical.
提供了通式如下的化合物
其中
a 是 1、2、3 或 4;
X是-O-、-S-或-NR3-;
R3 是 H 或单价烷基;以及
R 选自有机硅基、含杂环基、含金刚烷基、亚烷基、氟亚烷基和羟烷基。
Copolymers of vinyl carbonate and vinyl carbamate as contact lens material