Method of treating the surface of an absorbent resin

Details Method of treating the surface of an absorbent resin Method of treating the surface of an absorbent resin

1990-04-02

1992-08-18

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

526 62, 526 88, 5263171, 5263182, C08F 216

Patent

active

051400766

ABSTRACT:
A method of treating the surface of an absorbent resin, which comprises mixing (A) 100 parts by weight of an absorbent resin powder possessing a carboxyl group (B) 0.01 to 30 parts by weight of a cross-linking agent, (C) 0 to 50 parts by weight of water, and (D) 0 to 60 parts by weight of a hydrophilic organic solvent in a high-speed stirring type mixer provided with an inner surface formed substantially of a substrate (I) possessing a contact angle of not less than about 60.degree. with respect to water and a heat distortion point of not lower than about 70.degree. C. and completing reaction of said absorbent resin powder (A) with said cross-linking agent (B).

REFERENCES:
patent: 3661815 (1972-05-01), Smith
patent: 4076663 (1978-02-01), Masuda
patent: 4301266 (1981-11-01), Muenster et al.
patent: 4666983 (1987-05-01), Tsubakimoto
patent: 4734478 (1988-03-01), Tsubakimoto
Hawley's Condensed Chem. Dictionary, Van Nostrand Reinhold, N.Y., 1987, p. 944.

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