Process for preparing high-molecular weight acrylamide polymer

Details Process for preparing high-molecular weight acrylamide polymer Process for preparing high-molecular weight acrylamide polymer

1996-11-12

1997-09-16

Nagumo, Mark

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5262192, 5262195, 526228, 5263031, 5263072, C08F 440, C08F 2238

Patent

active

056682298

ABSTRACT:
A process for preparing an acrylamide polymer is herein disclosed which comprises the step of initiating polymerization in the presence of an oxidation-reduction system polymerization initiator comprising two or more kinds of oxidizing agents and a reducing agent. According to this process, the polymerization rate can be remarkably increased without bringing about a decrease in the molecular weight of the polymer, and hence, restriction on manufacturing facilities and apparatuses can be relieved and productivity can be remarkably enhanced, which permits a decrease in manufacturing cost.

REFERENCES:
patent: 3637625 (1972-01-01), Buning et al.
patent: 3985718 (1976-10-01), Chabert et al.
patent: 4138539 (1979-02-01), Landolt et al.
patent: 4282340 (1981-08-01), Anchor et al.
patent: 4306045 (1981-12-01), Yoshida et al.
patent: 5296577 (1994-03-01), Tamura et al.
Database WPI, Section Ch, Week 9018, Derwent Publications Ltd., London GB, class A97, AB 90-137023 & JP0-A-02086603, Mar. 1990 *Abstract*.

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