Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1987-01-05
1989-11-14
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526216, 526240, 525383, C08F 200
Patent
active
048808881
ABSTRACT:
A water-absorbent resin having excellent physical properties can be produced by a process wherein an aqueous solution containing an .alpha.,.beta.-unsaturated carboxylic acid and an alkali metal salt thereof in a total amount of 25% by weight or more is subjected to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent, characterized by using, as a surfactant, a polyglycerine--fatty acid ester having an HLB of 2 to 16 and represented by the general formula ##STR1## (wherein R is an acyl group or hydrogen atom and n is an integer of 0 to 8).
REFERENCES:
patent: 3940351 (1971-03-01), Schlatzer, Jr.
patent: 3975280 (1976-08-01), Hachmann et al.
patent: 4093776 (1978-06-01), Aoki et al.
patent: 4133857 (1979-01-01), Takano et al.
patent: 4340706 (1982-07-01), Obayashi et al.
patent: 4367323 (1983-01-01), Kitamura et al.
patent: 4446261 (1984-05-01), Yamasaki et al.
patent: 4507438 (1985-03-01), Obayashi et al.
patent: 4541871 (1985-09-01), Obayashi et al.
patent: 4683274 (1987-07-01), Nakamura et al.
EP-A-0 107 062, Yeats et al.
Nakamura Morio
Obayashi Shigeji
Sakamoto Yuji
Tanaka Hitoshi
Yamamoto Takushi
Sarofim N.
Schofer Joseph L.
Seitetsu Kagaku Co., Ltd.
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