NEGATIVE PRESSURE WOUND THERAPY DRESSINGS COMPRISING (METH)ACRYLATE PRESSURE-SENSITIVE ADHESIVE WITH ENHANCED ADHESION TO WET SURFACES
First Claim
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1. A negative pressure wound therapy dressing comprising:
- a backing bearing on at least a portion of a major surface thereof a wet-stick pressure-sensitive adhesive, and comprising at least one opening that is configured so that a vacuum can be applied therethrough,wherein the wet-stick pressure-sensitive adhesive is the crosslinking reaction product of a pre-adhesive composition comprising poly(meth)acrylate macromolecules that comprise a number-average molecular weight of from about 25000 to about 200000,and wherein the pre-adhesive composition exhibits a Tg of less than about minus 20°
C. and exhibits a storage modulus of from about 4 Pa to about 10000 Pa at 25°
C.
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Abstract
Negative pressure wound dressings comprising pressure-sensitive adhesives with enhanced adhesion to wet surfaces, obtained from crosslinking a pre-adhesive composition comprising poly(meth)acrylate macromolecules that comprise a number-average molecular weight of from about 25000 to about 200000, and methods of using such dressings.
47 Citations
22 Claims
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1. A negative pressure wound therapy dressing comprising:
a backing bearing on at least a portion of a major surface thereof a wet-stick pressure-sensitive adhesive, and comprising at least one opening that is configured so that a vacuum can be applied therethrough, wherein the wet-stick pressure-sensitive adhesive is the crosslinking reaction product of a pre-adhesive composition comprising poly(meth)acrylate macromolecules that comprise a number-average molecular weight of from about 25000 to about 200000, and wherein the pre-adhesive composition exhibits a Tg of less than about minus 20°
C. and exhibits a storage modulus of from about 4 Pa to about 10000 Pa at 25°
C.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
Specification