Process for preparing high molecular weight acrylic polymers

Details Process for preparing high molecular weight acrylic polymers Process for preparing high molecular weight acrylic polymers

1987-03-04

1988-08-09

Bleutge, John C.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 4, 522 13, 522 28, 522 62, 522 76, 522 78, 522 79, 522 84, 522171, 522173, 522174, C08F 250, C08F 404, C08F 2034, C08F 2056

Patent

active

047628626

ABSTRACT:
A process for preparing particulate water-soluble cationic acrylic polymers having a high molecular weight, an excellent water solubility and a uniform particle size with a good productivity by adding a combined photoinitiator system of an azoguanyl compound and other usual photoinitiator to an aqueous monomer solution containing a cationic vinyl monomer, irradiating the aqueous monomer solution in the form of a thin layer on a moving support with ultraviolet rays in at least two stages, and finely dividing the produced aqueous polymer gel in a wet state by a roller cutter and then by a vertical cutter.

REFERENCES:
patent: 4178221 (1979-12-01), Boutin
patent: 4376021 (1983-03-01), Okamoto
patent: 4604411 (1986-08-01), Yada
patent: 4612336 (1986-09-01), Yada
patent: 4654378 (1987-03-01), Hunter

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