Method for manufacture of an absorbent resin

Details Method for manufacture of an absorbent resin Method for manufacture of an absorbent resin

1990-09-04

1993-07-20

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528485, 528499, 524430, 524431, 524437, 524450, C08F 610, C08F 600

Patent

active

052294889

ABSTRACT:
An absorbent resin is produced by a method which comprises adding to 100 parts by weight of an absorbent resin powder an aqueous liquid containing 7 to 100 parts by weight of water and a reducing substance in the presence of 0.01 to 5 parts by weight of at least one additive selected from the group consisting of water-insoluble fine powders and surfactants. The absorbent resin thus produced excels in absorption properties and exhibits a low residual monomer content.

REFERENCES:
patent: 4286082 (1981-08-01), Tsubakimoto et al.
patent: 4306955 (1981-12-01), Neel et al.
patent: 4340706 (1982-07-01), Obayashi et al.
patent: 4666983 (1987-05-01), Tsubakimoto et al.
patent: 4683274 (1987-07-01), Nakamura et al.
patent: 4766173 (1988-05-01), Bailey
patent: 4929717 (1990-05-01), Chmelir
patent: 4954562 (1990-09-01), Anderson
patent: 4970267 (1990-11-01), Bailey et al.

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