Silicone priming compositions, articles, and methods
Assignee3M Innovative Properties Company
InventorsZhiming Zhou, Mieczyslaw H. Mazurek, Timothy J. Diekmann, Anthony M. Kremer, Duane A. Lunsford, Kurt C. Melancon, Michael L. Tumey
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Abstract
Priming compositions and methods, wherein the compositions include a polydiorganosiloxane polyurea copolymer comprising electron rich groups.
Claims22
An article comprising a backing, a pressure sensitive adhesive disposed on at least one major surface thereof, and a primer disposed on the pressure sensitive adhesive, wherein the primer comprises a polydiorganosiloxane polyurea copolymer comprising electron rich groups.
An adhesive article comprising:
- a foam backing comprising acid functional groups;
- and
- a pressure sensitive adhesive disposed on at least one major surface of the backing, the pressure sensitive adhesive comprising
- (a) a polydiorganosiloxane polyurea copolymer comprising tertiary amine groups that are all in a form of a Lewis base, pyridine groups that are all in a form of a Lewis base, or combinations thereof;
- and
- (b) a silicone tackifying resin.
A primed surface comprising:
- a foam having a surface comprising acid functional groups;
- and
- a primer comprising a polydiorganosiloxane polyurea copolymer comprising tertiary amine groups that are all in a form of a Lewis base, pyridine groups that are all in a form of a Lewis base, or combinations thereof.
An adhesive article comprising:
- a backing comprising acid functional groups selected from carboxylic acid groups, phosphoric acid groups, or sulfuric acid groups, wherein the backing having carboxylic acid groups comprises poly(ethylene/acrylic acid), poly(ethylene/methacrylic acid), or poly(ethylene/vinyl acetate);
- and
- a pressure sensitive adhesive disposed on at least one major surface of the backing, the pressure sensitive adhesive comprising
- (a) a polydiorganosiloxane polyurea copolymer comprising tertiary amine groups that are all in a form of a Lewis base, pyridine groups that are all in a form of a Lewis base, or combinations thereof;
- and
- (b) a silicone tackifying resin.
A primed surface comprising:
- a surface comprising acid functional groups selected from carboxylic acid groups, phosphoric acid groups, or sulfuric acid groups, wherein the surface having carboxylic acid groups comprises poly(ethylene/acrylic acid), poly(ethylene/methacrylic acid), or poly(ethylene/vinyl acetate);
- and
- a primer comprising a polydiorganosiloxane polyurea copolymer comprising tertiary amine groups that are all in a form of a Lewis base, pyridine groups that are all in a form of a Lewis base, or combinations thereof.
Dependencies are inferred from the claim text.