Crosslinked acrylic polymer microparticles

Details Crosslinked acrylic polymer microparticles Crosslinked acrylic polymer microparticles

1978-08-16

1979-12-25

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526201, 526203, 526273, 528 26, 528 27, 528 32, C08F22006

Patent

active

041806190

ABSTRACT:
Crosslinked acrylic polymer microparticles having a particle size of from 0.1 to 10 microns are produced in relatively high concentrations by a method comprising the free radical addition copolymerization of at least one monoethylenically unsaturated monomer with alpha, beta-ethylenically unsaturated monocarboxylic acid and crosslinking monomer selected from the group consisting of (1) epoxy group-containing compound and (2) a mixture of alkylenimine and organoalkoxysilane in the presence of a dispersion stabilizer and an aliphatic hydrocarbon dispersing liquid in which the crosslinked polymer particles are insoluble.
The crosslinked acrylic polymer microparticles are useful as additives to protective and decorative coatings.

REFERENCES:
patent: 3317635 (1967-05-01), Osmond et al.
patent: 3702836 (1972-11-01), Walbridge
patent: 3720534 (1973-03-01), Macaulay et al.

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