Modified vinyl acetate adhesive compositions containing low temp

Details Modified vinyl acetate adhesive compositions containing low temp Modified vinyl acetate adhesive compositions containing low temp

1983-05-27

1984-10-02

Ivy, G. Warren

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

428355, 428514, 428522, 524306, 524317, 524459, 524503, 524555, C08J 515, C08J 510, C09J 314, B32B 2724

Patent

active

044749155

ABSTRACT:
Modified vinyl acetate aqueous adhesive compositions containing acidic metal salt curing agents, which are suitable for exterior applications where water resistance is required, contain selected solvents as low temperature fusion aids. The adhesives are characterized by their film forming properties at temperatures as low as -1.degree. C., increased closed assembly times of at least up to 40 minutes, improved storage stability, and their satisfactory cold and hot water resistance. They consist essentially of a mixture of (a) an aqueous emulsion of a stabilized vinyl acetate/N-methylol acrylamide polymer; (b) a metal salt curing agent; (c) optionally a cross-linking inhibitor; and (d) 1-7%, based on the polymer solids, of ethylene glycol monomethyl ether acetate, ethylene glycol diacetate, or tetrahydrofurfuryl alcohol as the fusion aid.

REFERENCES:
patent: 2595956 (1952-05-01), Kunze
patent: 3041301 (1962-06-01), Armour
patent: 3301809 (1967-01-01), Goldberg
patent: 3563851 (1971-02-01), Armour
patent: 3580876 (1971-05-01), Stone
patent: 3730933 (1973-05-01), Stehle
patent: 3746679 (1973-07-01), Seipel
patent: 4085074 (1978-04-01), Woo

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