Process for producing nonaqueous dispersion-type resin

Details Process for producing nonaqueous dispersion-type resin Process for producing nonaqueous dispersion-type resin

1991-12-19

1993-05-25

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523339, 524530, 524531, 524533, 524535, 524923, C08J 302

Patent

active

052140806

ABSTRACT:
A process for the production of a nonaqueous dispersion-type resin having excellent dispersion stability and a uniform particle size, which comprises uniformly polymerizing in an aliphatic and/or alicyclic hydrocarbon-type organic solvent a vinyl monomer having a solubility parameter different by 1.1 or more from that of said organic solvent, or a vinyl monomer mixture containing at least 1% by weight of said monomer and a reactive resin soluble in said hydrocarbon-type organic solvent and having a molecular weight of 2,000 or more, and then replacing the organic solvent in the obtained uniform polymer solution with another organic solvent that does not dissolve the nonaqueous dispersion-type resin to thereby conduct phase inversion into a non-aqueous dispersion.

REFERENCES:
patent: 3419515 (1968-12-01), Schmadle et al.
patent: 3560456 (1971-02-01), Hazen et al.
patent: 3686111 (1972-08-01), Makhlouf et al.
patent: 3814720 (1974-06-01), Maker
patent: 4107110 (1978-08-01), Lachowicz et al.
patent: 4818792 (1989-04-01), Martin et al.

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