Method for manufacturing polymer latex

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United States of America Patent

PATENT NO 11034799
APP PUB NO 20190055367A1
SERIAL NO

16077612

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Abstract

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A method for producing a polymer latex, including an emulsification step of mixing a polymer solution obtained by dissolution of synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer in an organic solvent, with an aqueous solution including 0.1 to 30 parts by weight of a rosinate based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer, and emulsifying the resultant in water to thereby obtain an emulsified liquid, a solvent removal step of removing the organic solvent in the emulsified liquid, and a concentration step of concentrating the emulsified liquid from which the organic solvent is removed, and also adjusting the content rate of the rosinate in the emulsified liquid after concentration, in the range of 0.1 to 3 parts by weight based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer in the emulsified liquid.

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Patent Owner(s)

Patent OwnerAddress
ZEON CORPORATIONTOKYO 100-8246

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aihara, Shunjin Tokyo, JP 15 43
Ishiba, Masatoshi Tokyo, JP 2 2
Kodemura, Junji Tokyo, JP 42 252

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