Fluorosilicone hydrogels
First Claim
Patent Images
1. In a method of making a fluorinated siloxane-containing polymer by preparing a monomer mix comprising a fluorinated siloxane-containing monomer, at least one vinyl- or acryl-containing hydrophilic monomer, and at least one initiator and curing the monomer mix, the improvement which comprises selecting the fluorinated siloxane-containing monomer from the group consisting of(a) a monomer 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≧
z1;
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 --Hwhereinz 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, such as an ester or amide of an acrylic or a methacrylic acid or is a group represented by the general formula;
##STR16## wherein Y is --O--, --S-- or --NH--; and
(b) a monomer having the general schematic representation;
##STR17## wherein A is an activated unsaturated group, such as an ester or amide of an acrylic or a methacrylic acid;
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, 2 or 3;
y is 0, 1 or 2; and
x+y=3.
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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.
440 Citations
22 Claims
-
1. In a method of making a fluorinated siloxane-containing polymer by preparing a monomer mix comprising a fluorinated siloxane-containing monomer, at least one vinyl- or acryl-containing hydrophilic monomer, and at least one initiator and curing the monomer mix, the improvement which comprises selecting the fluorinated siloxane-containing monomer from the group consisting of
(a) a monomer 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≧
z1;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, such as an ester or amide of an acrylic or a methacrylic acid or is a group represented by the general formula;
##STR16## wherein Y is --O--, --S-- or --NH--; and(b) a monomer having the general schematic representation;
##STR17## wherein A is an activated unsaturated group, such as an ester or amide of an acrylic or a methacrylic acid;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, 2 or 3; y is 0, 1 or 2; and x+y=3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- ##STR15## wherein;
-
11. In a fluorinated siloxane-containing polymerization product prepared by polymerizing a monomer mix comprising a fluorinated siloxane-containing monomer, at least one vinyl- or acryl-containing hydrophilic monomer, and at least one initiator and curing the monomer mix, the improvement which comprises selecting the fluorinated siloxane-containing monomer from the group consisting of
(a) a monomer having the general schematic representation: - ##STR18## 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, such as an ester or amide of an acrylic or a methacrylic acid or is a group represented by the general formula;
##STR19## wherein Y is --O--, --S-- or --NH--; and(b) a monomer having the general schematic representation;
##STR20## wherein A is an activated unsaturated group, such as an ester or amide of an acrylic or a methacrylic acid;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, 2 or 3; y is 0, 1 or 2; and x+y=3. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- ##STR18## wherein;
Specification