Process for preparing particles of olefin-maleic anhydride copol

Details Process for preparing particles of olefin-maleic anhydride copol Process for preparing particles of olefin-maleic anhydride copol

1988-04-28

1989-01-03

Ivy, C. Warren

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526272, 524530, 524531, 525279, 525285, C08F 208

Patent

active

047957921

ABSTRACT:
A copolymer of an olefin and maleic anhydride is produced in the form of particles by co-polymerizing an olefin having 2 to 8 carbon atoms with maleic anhydride in a solvent capable of dissolving both co-monomers, but incapable of dissolving the copolymer in the presence of a dispersant of an oil-soluble, cationic copolymer comprising (a) ethylenically unsaturated monomer units having cationic groups of a quaternary ammonium salt and (b) lipophilic, ethylenically unsaturated monomer units. It has a relatively uniform particle size distribution

REFERENCES:
patent: Re28475 (1975-07-01), Blecke et al.
patent: 4048425 (1977-09-01), Sackmann et al.

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