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US 5,539,016 AGranted
Fluorosilicone hydrogels
AssigneeBausch & Lomb Incorporated
InventorsJay Kunzler, Richard Ozark
Life of this patent
Estimating the term…
Abstract
Novel fluorosiloxane-containing monomers are disclosed which are especially useful for the preparation of biomedical materials such as contact lenses.
Claims13
A contact lens made from a polymerization product of a monomer mix comprising at least one siloxane-containing monomer and at least one vinyl-containing or acrylic-containing hydrophilic monomer,
- wherein the siloxane-containing monomer has vinyl- or acryl-functionality, and a polar fluorinated side group is attached to at least one silicon atom of the siloxane-containing monomer, said polar fluorinated side group having the general schematic representation:
- --D--(CF.sub.2).sub.z H
- wherein
- z is 1 to 20;
- and
- D is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms.
3 more elements
A contact lens made from a polymerization product of a monomer mix which comprises:
- a) a siloxane-containing monomer comprising at least one fluorinated side group and having the general schematic representation:
- ##STR15## wherein:
- R is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
- R.sub.1 -R.sub.4 may independently be a monovalent hydrocarbon radical or a halogen substituted monovalent hydrocarbon radical having 1 to 18 carbon atoms which may have ether linkages between carbon atoms;
- x is .gtoreq.0 ;
- y is .gtoreq.1;
- x+y=2 to 1000;
- R.sub.5 is a fluorinated side group having the general schematic representation:
- --D--(CF.sub.2).sub.z --H
- wherein z is 1 to 20;
- D is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
- and
- A is an activated unsaturated group and
- b) at least one vinyl- or acrylic-containing hydrophilic monomer.
11 more elements
A contact lens made form a polymerization product of a monomer mix which comprises:
- a) a fluorinated bulky polysiloxanylalkyl (meth)acrylate-containing monomer having the formula:
- ##STR16## wherein A is an activated unsaturated group;
- R.sub.6 is CH.sub.3 or H;
- R is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
- D is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
- x is 1, 2or3;
- y is 0, 1 or 2;
- and
- x+y=3;
- and
- b) at least one vinyl- or acrylic-containing hydrophilic monomer.
8 more elements
Dependencies are inferred from the claim text.