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US 4,791,163 AGranted
Silicone adhesive and organic adhesive emulsions
AssigneeGeneral Electric Company
InventorsFrank J. Traver, Duane F. Merrill
Life of this patent
Estimating the term…
Abstract
Organic pressure-sensitive adhesives are combined with silicone pressure-sensitive adhesives from water based emulsions.
Claims18
A emulsion comprising:
- (a) 100 parts by weight of a continuous phase of water;
- (b) from about 10 to about 400 parts by weight of a mixture of micelles comprising:
- (i) from about 50 to about 99% by weight of said micelles comprising organic pressure-sensitive adhesive which is selected from the group consisting of milled natural rubber, styrene-butadiene rubber, butyl rubber, butadiene-acrylonitrile rubber polyvinyl ether rubber, polyacrylate ester rubber, styrene-butadiene-styrene rubber, and styrene-isoprene-styrene rubber, and
- (ii) from about 1 to about 50% by weight of said micelles comprising silicone pressure-sensitive adhesive;
- and
- (c) an effective amount of emulsifying agent effective to maintain the emulsion.
3 more elements
A method for forming a pressure-sensitive adhesive comprising:
- (A) forming an emulsion in 100 parts by weight of water, containing from about 10 to about 400 parts by weight of adhesive solids as a mixture of micelles comprising (i) from about 50 to about 99% by weight of said micelles of organic pressure-sensitive adhesive which is selected from the group consisting of milled natural rubber, styrene-butadiene rubber, butyl rubber, butadiene-acrylonitrile rubber, polyvinyl ether rubber, polyacrylate ester rubber, styrene-butadiene-styrene rubber, and styrene-isoprene-styrene rubber, and (ii) from about 1 to about 50% by weight of said micelles of silicone pressure-sensitive adhesive, employing an effective amount of emulsifying agent;
- (B) applying the resultant emulsion to a substrate;
- and
- (C) drying said resultant emulsion.
1 more element
Dependencies are inferred from the claim text.