Process for producing nonaqueous dispersion-type resin
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United States of America Patent
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May 25, 1993
Issued Date -
N/A
app pub date -
Dec 19, 1991
filing date -
May 15, 1987
priority date (Note) -
Expired
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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.
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