Method for producing resin particles

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United States of America Patent

PATENT NO 11859058
SERIAL NO

16615464

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Abstract

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Provided is a method for producing resin particles by melt-kneading with a non-water-soluble resin in a wide range of melt-kneading temperature according to the melting point or glass transition temperature of the resin. This production method includes melt-kneading a water-soluble matrix, containing a modified polyvinyl alcohol-based resin, and a non-water-soluble resin to form a pre-molded article in which the non-water-soluble resin is dispersed in particulate; and bringing the pre-molded article into contact with an aqueous solvent to elute the matrix. The modified polyvinyl alcohol-based resin contains in a side chain thereof an alkyl group including at least one hydroxyl group (for example, a 1,2-dihydroxyalkyl group).

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Patent Owner(s)

Patent OwnerAddress
DAICEL-EVONIK LTD2-3-1 NISHI-SHINJUKU SHINJUKU-KU TOKYO 163-0913

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arita, Hiroaki Tokyo, JP 32 197
Mutsuda, Mitsuteru Tokyo, JP 34 149
Nakaie, Yoshiki Tokyo, JP 13 76

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