Method for preparing acrylamide polymers

Details Method for preparing acrylamide polymers Method for preparing acrylamide polymers

1980-08-07

1981-12-15

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526211, 526212, 526214, 526220, 526222, 528486, 528487, 528495, 5263031, C08J 312

Patent

active

043060480

ABSTRACT:
In the production of a dried acrylamide polymer by polymerizing, in an aqueous medium, acrylamide alone or a monomer mixture comprising 50 mole % or more of acrylamide and at least one monomer copolymerizable therewith with a radical initiator, and then drying the resulting hydrous acrylamide polymer, the allowing of at least one of the following compounds [I], [II] and [III] to be present in the drying step or a step prior thereto enables the dried acrylamide polymer having a high molecular weight and a good dissolvability in water to be obtained:

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patent: 3002960 (1961-10-01), Kolodny
patent: 3222335 (1965-12-01), Delacretaz
patent: 3755280 (1973-08-01), Saunders
patent: 3951934 (1976-04-01), Ohshima et al.
patent: 3969329 (1976-07-01), Hirata et al.
patent: 4042772 (1977-08-01), Ballweber et al.
patent: 4103080 (1978-07-01), Bohmer et al.
patent: 4138539 (1979-02-01), Landolt et al.
patent: 4154910 (1979-05-01), Tanaka et al.

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