CHLOROPRENE-BASED POLYMER LATEX COMPOSITION, AND DIP-MOLDED ARTICLE

WIPO Patent Application WO/2023/058526

A1

The present invention provides a chloroprene-based polymer latex composition by which can be obtained, through the use of a hetero-aromatic ring-based compound and the plasticizing effect of a low molecular weight polymer, a chloroprene-based polymer dip-molded article having high rupture strength while maintaining excellent flexibility even with a reduction in a vulcanization accelerator and sulfur, and having a low residue amount of mercaptans for which concerns remain regarding hygienic properties. The chloroprene-based polymer latex composition according to the present invention comprises a chloroprene-based polymer latex, a metal oxide, and a hetero-aromatic ring-based compound. The chloroprene-based polymer latex composition comprises 0.5-15.0 parts by mass of the metal oxide and 0.1-10.0 parts by mass of the hetero-aromatic ring-based compound per 100 parts by mass of solid content of the chloroprene-based polymer latex. The chloroprene-based polymer latex composition has a content of alkyl mercaptan compounds of 0.34 parts by mass or less per 100 parts by mass of solid content of the chloroprene-based polymer latex, and the hetero-aromatic ring-based compound is represented by chemical formula (1).

ITO MISAKI (JP)
KUMAGAI YUSHI (JP)
KATO MASAHIRO (JP)

PCT/JP2022/036220

April 13, 2023

September 28, 2022

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DENKA COMPANY LTD (JP)

C08L11/02; C08F36/18; C08K3/22; C08K5/3447

WO2020230746A1	2020-11-19
WO2020189516A1	2020-09-24
WO2019009038A1	2019-01-10

JPH08188676A	1996-07-23
JPH07292165A	1995-11-07
JP2014114342A	2014-06-26
JP2019143002A	2019-08-29

SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)

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