Strong cationic polyelectrolytes in powder form based on acrylam

Details Strong cationic polyelectrolytes in powder form based on acrylam Strong cationic polyelectrolytes in powder form based on acrylam

1980-12-05

1983-08-02

Marquis, Melvyn I.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526206, 526207, 526923, 526312, 5262922, 528493, 528501, 524547, 524555, 210734, C08F26710, C08F22238, C08F 216, C08F 614

Patent

active

043967523

ABSTRACT:
Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate; and the use thereof for flocculation of solid material suspensions and coalescence of emulsions.
Such polyelectrolytes contain in molar proportions more than 50% of cationic units uniformly distributed along the copolymer chains. They are used for flocculating colloidal suspensions and/or coalescing emulsions, especially, in sewage water purification installations.

REFERENCES:
patent: 3901857 (1975-08-01), Sackman et al.
patent: 4037040 (1977-07-01), Trapasso et al.
patent: 4138446 (1979-02-01), Kawakami et al.
patent: 4138539 (1979-02-01), Landout et al.
patent: 4158726 (1979-06-01), Kamada et al.
patent: 4165419 (1979-08-01), Suzuki et al.
patent: 4190717 (1980-02-01), Suzuki et al.
patent: 4224150 (1980-09-01), Buriks et al.
Derwent Abst. 82148 A/46 Hoechst (BE867009) (11-13-78), "Powdered Cationic Polylectrolytes, . . . " Equiv. to above FR2390983.

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