Surface crosslinked and surfactant coated absorbent resin partic

Details Surface crosslinked and surfactant coated absorbent resin partic Surface crosslinked and surfactant coated absorbent resin partic

1992-04-10

1997-05-27

Mullis, Jeffrey C.

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

Synthetic resins

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

5253291, 5253294, 5253301, 527311, 527312, 527314, C08B 3000, C08F 600

Patent

active

056333161

ABSTRACT:
The invention is surface crosslinked particles of water absorbing resin comprising particles of a carboxyl containing water-absorbent resin; wherein the particles of the carboxyl containing water-absorbent resin are crosslinked at or near the particle surface by a polyhydroxy compound capable of reacting with the carboxyl moieties of the water-absorbent resin, and the particles have coated on or bound to the surface a nonionic surfactant having an HLB of from 3 to 10.
Additionally a process for the preparation of such surface crosslinked and surfactant coated absorbent resin particles is disclosed. Further disclosed is a water-absorbent structure comprising a synthetic or natural fiber or paper based woven or nonwoven carrier structure and surface crosslinked and surfactant coated water-absorbent resin particles of this invention.

REFERENCES:
patent: 3661815 (1970-05-01), Smith
patent: 4093776 (1978-06-01), Aoki et al.
patent: 4734478 (1988-03-01), Tsubakimoto
patent: 4742086 (1988-05-01), Masamizu et al.
patent: 5057580 (1991-10-01), Fock et al.
patent: 5164459 (1992-11-01), Kimura et al.

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