Fluorosilicone hydrogels
First Claim
Patent Images
1. 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:
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space="preserve" listing-type="equation">--D--(CF.sub.2).sub.z Hwhereinz 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.
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Abstract
Novel fluorosiloxane-containing monomers are disclosed which are especially useful for the preparation of biomedical materials such as contact lenses.
282 Citations
13 Claims
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1. 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: -
space="preserve" listing-type="equation">--D--(CF.sub.2).sub.z Hwherein 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.
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2. A contact lens made from a polymerization product of a monomer mix which comprises:
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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;R1 -R4 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 ≧
0 ;y is ≧
1;x+y=2 to 1000; R5 is a fluorinated side group having the general schematic representation;
space="preserve" listing-type="equation">--D--(CF.sub.2).sub.z --Hwherein 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. - View Dependent Claims (3, 4, 5, 6, 12)
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7. A contact lens made form a polymerization product of a monomer mix which comprises:
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a) a fluorinated bulky polysiloxanylalkyl (meth)acrylate-containing monomer having the formula;
##STR16## wherein A is an activated unsaturated group;R6 is CH3 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. - View Dependent Claims (8, 9, 10, 11, 13)
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Specification