WATER-SOLUBLE PRESSURE SENSITIVE ADHESIVES
First Claim
Patent Images
1. A pressure sensitive adhesive comprising a homogeneous blend comprising:
- (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof, the N-vinylpyrrolidone copolymers comprising about 60% or less by weight N-vinyl pyrrolidone; and
(b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10;
wherein the pressure sensitive adhesive is water-soluble.
1 Assignment
0 Petitions
Accused Products
Abstract
A water-soluble pressure sensitive adhesive comprises a homogeneous blend comprising (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof and (b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10. The N-vinyl pyrrolidone copolymers comprise about 60% or less by weight N-vinyl pyrrolidone.
20 Citations
26 Claims
-
1. A pressure sensitive adhesive comprising a homogeneous blend comprising:
-
(a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof, the N-vinylpyrrolidone copolymers comprising about 60% or less by weight N-vinyl pyrrolidone; and (b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10; wherein the pressure sensitive adhesive is water-soluble. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
Specification