Absorbable block copolymers and surgical articles fabricated therefrom
First Claim
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1. A block copolymer comprising:
- a) from about 50 to about 65 percent by weight of copolymer blocks comprising a predominant amount of glycolic acid ester units; and
b) the remainder of said blocks comprising random copolymers of caprolactone and 1,3 dioxane-2-one, said blocks comprising random copolymers of epsilon-caprolactone and 1,3 dioxane-2-one being formed from the random polymerization of about 35 percent by weight of caprolactone and about 65 percent by weight 1,3 dioxane-2-one.
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Abstract
Block copolymers wherein one of the blocks is made from hard phase forming monomers and another of the blocks is made from soft phase forming monomers copolymerized with randomly intermingled units of other soft phase forming monomers. The copolymers are useful in forming surgical articles, including both monofilament and multifilament sutures.
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Citations
11 Claims
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1. A block copolymer comprising:
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a) from about 50 to about 65 percent by weight of copolymer blocks comprising a predominant amount of glycolic acid ester units; and b) the remainder of said blocks comprising random copolymers of caprolactone and 1,3 dioxane-2-one, said blocks comprising random copolymers of epsilon-caprolactone and 1,3 dioxane-2-one being formed from the random polymerization of about 35 percent by weight of caprolactone and about 65 percent by weight 1,3 dioxane-2-one. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A block copolymer comprising:
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a) from about 40 to about 70 percent by weight of said copolymer blocks comprising a predominant amount of glycolic acid ester units; and b) the remainder of said blocks comprising random copolymers of caprolactone and 1,3 dioxane-2-one, said blocks comprising random copolymers of epsilon-caprolactone and 1,3 dioxane-2-one formed from the random polymerization of caprolactone and 1,3 dioxane-2-one. - View Dependent Claims (9, 10, 11)
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Specification