Water swellable articles

Details Water swellable articles Water swellable articles

1975-06-30

1977-02-15

Hoffman, James R.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

427385B, 427385R, 427390R, 427391, 427392, 428510, 428514, B05D 504, B05D 300, B32B 2704, B32B 2712

Patent

active

040083535

ABSTRACT:
Water swellable polyacrylate articles are made from a solution of the polyacrylate having an effective amount of a soluble crosslinking agent therein by heating and/or drying the solution. The polyacrylate solution is made from a polyacrylate by saponification and the crosslinking agent is then added.

REFERENCES:
patent: 2954358 (1960-09-01), Hurwitz
patent: 3224986 (1965-12-01), Butler et al.
patent: 3245933 (1966-04-01), Muskat
patent: 3269994 (1966-08-01), Horn et al.
patent: 3514419 (1970-05-01), Darlow et al.

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