Process for producing polymer from quaternized acrylate monomer

Details Process for producing polymer from quaternized acrylate monomer Process for producing polymer from quaternized acrylate monomer

1977-10-14

1980-02-26

Henderson, C. A.

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

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

526211, 526287, 526292, 526303, 528502, C08F 202, C08F 216

Patent

active

041907175

ABSTRACT:
A process for producing a cationic polymer, which comprises polymerizing a vinyl monomer represented by the general formula, ##STR1## wherein R.sub.1 represents --H or --CH.sub.3, R.sub.2 represents --CH.sub.2 CH.sub.2 -- or ##STR2## R.sub.3 and R.sub.4 represent --CH.sub.3 or --CH.sub.2 CH.sub.3, R.sub.5 represents --C.sub.n H.sub.2n+1, in which n is an integer of 0 to 4, ##STR3## or --CH.sub.2 COOH, and X.sup.- represents Cl.sup.-, CH.sub.3 SO.sub.4.sup.-, CH.sub.3 SO.sub.3.sup.-, or 1/2 SO.sub.4.sup.--, either alone or in admixture with up to 25% by weight, based on the total weight of the monomers, of other copolymerizable vinyl monomers in the presence of 7 to 18% by weight, based on the weight of the polymerization system, of water and, if necessary, choline chloride by use of a polymerization initiator and elevating the temperature, in the final polymerization stage, to 110.degree. to 150.degree. C. to complete the polymerization, thereby obtaining the water-soluble cationic polymer in the form of a lump. The polymer in the lump form thus obtained may be easily ground with a high efficiency at room temperature. The powdered polymer is excellent as a cationic flocculant.

REFERENCES:
patent: 2843573 (1958-07-01), Melamed
patent: 3661880 (1972-05-01), Markert
patent: 3901857 (1975-08-01), Sackman
patent: 3948866 (1976-04-01), Pennewiss
patent: 3975341 (1976-08-01), Trapasso

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