Process for producing water-absorbent materials having excellent

Details Process for producing water-absorbent materials having excellent Process for producing water-absorbent materials having excellent

1982-07-28

1984-07-10

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526288, 526317, 526306, C08F 224

Patent

active

044593961

ABSTRACT:
A process is disclosed for producing a water-absorbent material by dispersing and suspending an aqueous solution of a water-soluble, ethylenically unsaturated monomer in a hydrocarbon or halogenated aromatic hydrocarbon in the presence of an oil-soluble cellulose ester or cellulose ether and then carrying out the polymerization using a water-soluble radical-polymerization initiator, characterized by the feature that one or more water-soluble or water-dispersible surfactants is (are) added to the system during or after the polymerization reaction.

REFERENCES:
patent: 2982749 (1961-05-01), Friedrich et al.
patent: 3929741 (1975-12-01), Laskey
patent: 3951528 (1976-04-01), Leeds
patent: 4286082 (1981-08-01), Tsubakimoto et al.
patent: 4340706 (1982-07-01), Obayashi

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