Method for making aggregates or clusters of water-swellable poly

Details Method for making aggregates or clusters of water-swellable poly Method for making aggregates or clusters of water-swellable poly

1993-09-01

1994-12-20

Delmendo, Romulo H.

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

Synthetic resins

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

525242, 525293, 525296, 525301, 525303, 525305, 524458, 524460, 524529, 524533, 524534, 524535, C08F 624, C08F26502, C08F26504

Patent

active

053746848

ABSTRACT:
Clusters of water-swellable polymer particles, having high rates of absorbency without gel-blocking are prepared by suspending water-swellable polymer particles in an inert hydrophobic liquid, such as hydrocarbon, and slowly adding to the particles a suspension of an aqueous solution optionally containing an .alpha.,.beta.-ethylenically unsaturated monomer in an inert hydrophobic liquid.

REFERENCES:
patent: 5002986 (1991-03-01), Fujiuri et al.
patent: 5102597 (1992-04-01), Roe et al.
patent: 5124188 (1992-06-01), Roe et al.
patent: 5149334 (1992-09-01), Lahrman et al.
patent: 5171781 (1992-12-01), Farrar et al.
patent: 5180622 (1993-01-01), Berg et al.

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