Adhesive compositions containing aqueous copolymer dispersions a

Details Adhesive compositions containing aqueous copolymer dispersions a Adhesive compositions containing aqueous copolymer dispersions a

1992-02-14

1994-03-22

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524399, 524459, 524503, 524803, 525 57, 525 64, 528501, 528502, 528503, C08K 509, C08L 2904, C08G 6391, C08F 600

Patent

active

052965325

ABSTRACT:
The invention relates to adhesive compositions for gluing wood containing aqueous vinyl ester graft copolymer dispersions and water-soluble acid metal salts or free acids, in which the adhesive compositions exhibit outstanding resistance to hot water and have high storage stability. The vinyl ester graft copolymer comprises from 2 to 12 percent by weight, based on the total weight of the graft copolymer, of one or more polyvinyl alcohols having a degree of hydrolysis of from 60 to 99 mol persent and 88 to 98 percent by weight, based on the total weight of the graft copolymer, of a grafting monomer mixture. The grafting monomer mixture contains from 5 to 50 percent by weight, based on the total weight of the monomer mixture, of vinyl esters of saturated, highly branched aliphatic monocarboxylic acids having 9 or 10 carbon atoms, vinyl pivalate, diisopropyl maleate, diisopropyl fumarate, vinyl chloride and mixtures thereof.

REFERENCES:
patent: 4118357 (1978-10-01), Brabetz et al.

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