Adhesive aqueous dispersions of polyvinyl alcohol graft polymers

Details Adhesive aqueous dispersions of polyvinyl alcohol graft polymers Adhesive aqueous dispersions of polyvinyl alcohol graft polymers

1977-05-02

1978-10-03

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296B, 260 296BM, 260 296BE, 260 296M, 260 296MM, 260875, C09J 314

Patent

active

041183576

ABSTRACT:
An aqueous copolymer adhesive dispersion having a long pot life and giving highly waterproof bonds, comprising an acid hardener of water-soluble acids having pKs of under 0 and an aqueous dispersion of a pre-crosslinked polyvinyl ester grafted onto polyvinyl alcohol, said polyvinyl ester being an ester of an acid of 1 to 12 carbon atoms and said pre-crosslinking caused by the presence of small amounts of poly-ethylenically-unsaturated compounds in the monomer mixture, as well as the aqueous dispersion and the method for its production.

REFERENCES:
patent: 2843562 (1958-07-01), Caldwell
patent: 3461052 (1969-08-01), Restaino et al.
patent: 3563851 (1971-02-01), Armour et al.
patent: 3755234 (1973-08-01), Chujo et al.

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