Title:
LATEX COMPOSITION AND ONE-PACK AQUEOUS ADHESIVE
Document Type and Number:
WIPO Patent Application WO/2016/133192
Kind Code:
A1
Abstract:
Provided is a latex composition suitable for use in a one-pack adhesive that exhibits excellent normal adhesive strength to adherends such as cloth, leather, and paper. Also provided is a one-pack aqueous adhesive using the latex composition. This latex mixture contains: 100 parts by mass, in terms of solid content, of a chloroprene polymer latex having a pH of at least 12; and 10-50 parts by mass, in total, of at least one aqueous dispersion selected from among terpene phenol resin emulsions, acrylic latexes having a glass transition temperature of -40°C to -10°C, and epoxy resin emulsions having a carboxyl group and a pH of 8.0-11.0. It is preferable that the chloroprene polymer has a gel content of 5-30 mass%, the number-average molecular weight of the toluene-soluble portion is 200,000 to 500,000, and the molecular weight distribution is 2.0-4.0. The latex composition can be suitably used as a one-pack aqueous adhesive for bags and shoes.
Inventors:
SHIMANO HIROKAZU (JP)
MOCHIZUKI KENJI (JP)
ONOZUKA MASAO (JP)
HAGIWARA SHOGO (JP)
MOCHIZUKI KENJI (JP)
ONOZUKA MASAO (JP)
HAGIWARA SHOGO (JP)
Application Number:
PCT/JP2016/054805
Publication Date:
August 25, 2016
Filing Date:
February 19, 2016
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08L11/02; C08G59/50; C08L33/00; C08L45/00; C08L63/00; C08L65/00; C09J11/06; C09J111/02; C09J133/00; C09J163/00
Domestic Patent References:
| WO2011065524A1 | 2011-06-03 |
Foreign References:
| JP2002155168A | 2002-05-28 | |||
| JPH11315263A | 1999-11-16 |
Attorney, Agent or Firm:
WATANABE KAORU (JP)
Kaoru Watanabe (JP)
Kaoru Watanabe (JP)
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