CHLOROPRENE RUBBER LATEX ADHESIVE COMPOSITION AND METHOD FOR PRODUCING SAME, ADHESIVE LAYER, AND LAMINATE

WIPO Patent Application WO/2022/025118

A1

The present invention addresses the problem of developing a chloroprene polymer latex adhesive composition which has excellent adhesiveness to a polyolefin and also has excellent heat creep resistance to an object to which the composition is to be adhered.　Provided is a chloroprene rubber latex adhesive composition which comprises a chloroprene polymer latex (A) comprising a chloroprene homopolymer or a copolymer of a chloroprene monomer and another monomer and a rosin acid metal salt, a (meth)acrylic polymer emulsion (B) containing a polymer that contains a monomer component represented by formula 1 as a main ingredient, and a chlorinated polyolefin resin (C), in which the ratio of the content of the chloroprene polymer latex (A) to the content of the (meth)acrylic polymer emulsion (B) is such that the ratio (a:b) of the mass of a solid content (a) comprising the chloroprene homopolymer or the copolymer in the chloroprene polymer latex (A) to the mass of a solid content (b) comprising the polymer in the (meth)acrylic polymer emulsion (B) is 85:15 to 55:45. (In general formula (1), R1 represents a hydrogen atom or a methyl group, and R2 represents a linear or branched alkyl group having 1 to 18 carbon atoms.)

SEKIOKA NAOKI (JP)
SHIBUYA AKIRA (JP)
OGAWA NORIKO (JP)
MAKIO RYO (JP)

PCT/JP2021/027913

February 03, 2022

July 28, 2021

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SHOWA DENKO KK (JP)

B32B25/10; B32B25/08; B32B27/00; B32B27/30; C09J7/30; C09J11/06; C09J11/08; C09J111/02; C09J133/00

WO2018043586A1	2018-03-08
WO2011065524A1	2011-06-03

JP2018168227A	2018-11-01
JP2017222804A	2017-12-21
JP2016160296A	2016-09-05

SSINPAT PATENT FIRM (JP)

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