Ocular lens material

Details Ocular lens material Ocular lens material

1996-01-02

1996-09-17

Sweet, Mark D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526279, 523107, C08F 2600

Patent

active

055569293

ABSTRACT:
An ocular lens material made of a copolymer obtained by polymerizing copolymerizable components comprising (A) a fluorine-containing di(meth)acrylate having urethane bonds, of the formula (I): ##STR1## wherein each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or a methyl group, each of R.sup.3 and R.sup.4 independently represents a C.sub.5-15 alkylene group, R.sup.5 represents a C.sub.1-20 alkylene group containing from 1 to 20 fluorine atoms, each of m and n independently represents an integer of from 1 to 5, and each of x and y independently represents 0 or 1, (B) a silicone-containing di(meth)acrylate having urethane bonds, of the formula (II): ##STR2## wherein each of R.sup.6 and R.sup.7 independently represents a hydrogen atom or a methyl group, each of R.sup.8 and R.sup.9 independently represents a C.sub.1-10 alkylene group or a C.sub.2-10 ether group, R.sup.10 represents a siloxane structure of the formula (III): ##STR3## wherein r is an integer of from 1 to 50, and each of p and q independently represents an integer of from 1 to 5, and (C) a monomer having an unsaturated double bond, copolymerizable with the fluorine-containing di(meth)acrylate (A) and the silicone-containing di(meth)acrylate (B).

REFERENCES:
patent: 4954586 (1990-09-01), Toyoshima et al.
patent: 5177165 (1993-01-01), Valint, Jr. et al.
patent: 5274008 (1993-12-01), Lai

Affiliated with

Also associated with

Rating

Ocular lens material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ocular lens material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ocular lens material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-413894