Surface wettable silicone hydrogels
First Claim
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1. A silicone-containing, hydrogel material formed from the polymerization product of a monomer mix comprising:
- a) an acrylic-capped polysiloxane prepolymer represented by the formula;
##STR4## wherein;
A and A'"'"' are independently an ester or amide of an acrylic or a methacrylic acid;
R1 -R10 are independently an alkyl, fluoroalkyl, alcohol, ether, or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons;
m, n, and p are independently 0 to 200 m+n+p being from about 23 to 200; and
a and b are independently 1 to 10;
b) a bulky polysiloxanylalkyl (meth)acrylate monomer represented by the formula;
##STR5## wherein;
X is O or N--R;
R is H or CH3 ;
R11 -R19 are independently an alkyl, fluoroalkyl, alcohol, ether or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons; and
a is 1, or 3 to 10; and
c) at least one hydrophilic monomer.
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Abstract
A novel silicone-containing, hydrogel material is disclosed comprising an acrylic-capped polysiloxane prepolymer, polymerized with a bulky polysiloxanylalkyl (meth)acrylate monomer and at least one hydrophilic monomer.
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Citations
21 Claims
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1. A silicone-containing, hydrogel material formed from the polymerization product of a monomer mix comprising:
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a) an acrylic-capped polysiloxane prepolymer represented by the formula;
##STR4## wherein;
A and A'"'"' are independently an ester or amide of an acrylic or a methacrylic acid;R1 -R10 are independently an alkyl, fluoroalkyl, alcohol, ether, or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons; m, n, and p are independently 0 to 200 m+n+p being from about 23 to 200; and a and b are independently 1 to 10; b) a bulky polysiloxanylalkyl (meth)acrylate monomer represented by the formula;
##STR5## wherein;
X is O or N--R;R is H or CH3 ; R11 -R19 are independently an alkyl, fluoroalkyl, alcohol, ether or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons; and a is 1, or 3 to 10; and c) at least one hydrophilic monomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A silicone-containing, hydrogel material formed from the polymerization product of a monomer mix comprising:
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a) an acrylic-capped polysiloxane prepolymer represented by the formula;
##STR6## wherein;
A and A'"'"' are independently an ester or amide of an acrylic or a methacrylic acid;R1 -R10 are independently an alkyl, fluoroalkyl, alcohol, ether, or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons; m, n, and p are independently 0 to 200 m+n+p being from about 23 to 200; and a and b are independently 1 to 10; b) a bulky polysiloxanylalkyl (meth)acrylate monomer represented by the formula;
##STR7## wherein;
X is O or N--R;R is H or CH3 ; R11 -R19 are independently an alkyl, fluoroalkyl, alcohol, ether or fluoroether group having 1-10 carbons, or an aromatic group having 6-18 carbons; and a is 1, or 3 to 10; and c) at least one hydrophilic monomer representing at least 30 to 60 weight percent of the monomer mix.
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Specification