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US 5,645,855 AGranted
Adhesive compositions including polyvinylpyrrolidone acrylic acid polymers, and polyamines
AssigneeRidge Scientific Enterprises, Inc.
InventorDonald H. Lorenz
Life of this patent
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Abstract
A composition comprising a cross-linked salt of (a) a polyvinylpyrrolidone having ring opened pyrrolidone groups; (b) at least one acrylic acid-containing or methacrylic acid-containing polymer; and (c) an amine-containing polymer. The composition may be used as a pressure-sensitive adhesive, has good tack, and may be peeled from the body or from an object without causing damage or injury to the body or object.
Claims26
A composition comprising a cross-linked salt of:
- (a) a polyvinylpyrrolidone having ring opened pyrrolidone groups;
- (b) at least one acrylic acid-containing or methacrylic acid containing polymer;
- and
- (c) an amine-containing polymer, wherein said polyvinylpyrrolidone and said amine-containing polymer are present in said composition at a weight ratio of polyvinylpyrrolidone to amine-containing polymer of from about 40:1 to about 150:1, and said acrylic acid-containing polymer or methacrylic acid-containing polymer is present in said composition at a weight ratio of polyvinylpyrrolidone to acrylic acid-containing polymer or methacrylic acid-containing polymer of from about 8:1 to about 16:1.
1 more element
Dependencies are inferred from the claim text.