Gel materials, medical articles, and methods
First Claim
Patent Images
1. A medical article comprising a gel material comprising a copolymer of a difunctional poly(alkylene oxide) macromonomer, a polar monomer, a monofunctional poly(alkylene oxide) monomer, and a hydrophobic monomer, wherein the hydrophobic monomer is alpha-methylstyrene;
- andwherein the difunctional macromonomer has a weight average molecular weight of at least about 2000, and is of the formula;
XO—
(—
CH(R1)—
CH2—
O—
)m . . . (—
CH2—
CH2—
O—
)n—
Y
wherein;
the mole ratio of m;
n is within a range of about 1;
9 to about 9;
1; and
R1 is a (C1–
C4) alkyl group; and
X and Y are each independently selected from the group consisting of
wherein R2 is H or CH3, R3 is an aromatic group, aliphatic group, alicylic group, or combinations thereof, W is an alkylene or alkylene oxide group, and r =2–
10.
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Abstract
A gel material and medical articles including such material, wherein the transparent gel material includes a polymerized poly(alkylene oxide) macromonomer that, prior to polymerization, is free-radically polymerizable, multifunctional (preferably difunctional), and has an average molecular weight of at least about 2000.
108 Citations
25 Claims
-
1. A medical article comprising a gel material comprising a copolymer of a difunctional poly(alkylene oxide) macromonomer, a polar monomer, a monofunctional poly(alkylene oxide) monomer, and a hydrophobic monomer, wherein the hydrophobic monomer is alpha-methylstyrene;
- and
wherein the difunctional macromonomer has a weight average molecular weight of at least about 2000, and is of the formula;
XO—
(—
CH(R1)—
CH2—
O—
)m . . . (—
CH2—
CH2—
O—
)n—
Y
wherein;
the mole ratio of m;
n is within a range of about 1;
9 to about 9;
1; and
R1 is a (C1–
C4) alkyl group; and
X and Y are each independently selected from the group consisting of
wherein R2 is H or CH3, R3 is an aromatic group, aliphatic group, alicylic group, or combinations thereof, W is an alkylene or alkylene oxide group, and r =2–
10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 19, 20, 21, 22, 23, 24, 25)
- and
-
16. A medical article comprising a transparent gel material comprising a copolymer prepared from monomers comprising:
-
a multifunctional poly(alkylene oxide) free-radically polymerizable macromonomer having a weight avenge molecular weight of at least about 2000, wherein the multifunctional poly(alkylene oxide) macromonomer comprises a copolymeric random alkylene oxide moiety of the formula;
—
(—
CH(R1)—
CH2—
O—
)m . . . (—
CH2—
CH2—
O—
)n—
wherein the mole ratio of m;
n is within a range of about 1;
9 to about 9;
1; and
R1 is a (C1–
C4)alkyl group;a monofunctional poly(alkylene oxide) monomer; and a polar monomer. - View Dependent Claims (17, 18)
-
Specification