Latex-based adhesives

Details Latex-based adhesives Latex-based adhesives

1978-04-13

1980-12-23

Cannon, James C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156331, 156334, 156338, 428246, 428248, 428250, 428302, 428304, 428316, 428318, 428347, 428349, 428355, 428356, 428492, 428496, 428512, 428521, C09J 312, C09J 504, C09J 506

Patent

active

042408601

ABSTRACT:
Two preformed materials such as paper, fabrics, glass, sheet metal, at least one of which is pervious to water vapor, are joined together with a solvent-free adhesive based on a latex of a rubbery polymer. The latex is one which is stabilized with an emulsifier which forms water-insoluble compounds with zinc or cadmium ions. Included in the adhesive formulation is an ammonium or amine salt gelling agent for the latex, a zinc or cadmium ion donor compound and sufficient ammonia or a compound which releases ammonia to provide a pH of above 8 to the adhesive formulation. A surface of at least one of the preformed materials is coated with the adhesive and then contacted with a surface of the other material and held in such contact while heating to gel the latex and evaporate the water from the intersurface layer of adhesive.

REFERENCES:
patent: 2907682 (1959-10-01), Eichel
patent: 2937109 (1960-05-01), Bartell et al.
patent: 3132041 (1964-05-01), Pihl
patent: 3475268 (1969-10-01), Bildusas
patent: 3719614 (1973-03-01), Wright
patent: 3904558 (1975-09-01), Graham et al.

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