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1. (WO2013121960) CHLOROPRENE RUBBER COMPOSITION AND ADHESIVE COMPOSITION USING SAID CHLOROPRENE RUBBER COMPOSITION

Pub. No.:    WO/2013/121960    International Application No.:    PCT/JP2013/052823
Publication Date: Fri Aug 23 01:59:59 CEST 2013 International Filing Date: Fri Feb 08 00:59:59 CET 2013
IPC: C08F 2/24
C08F 4/28
C08F 36/18
C08L 11/02
C09J 111/02
Applicants: DENKI KAGAKU KOGYO KABUSHIKI KAISHA
電気化学工業株式会社
Inventors: YASHIMA Hiroyuki
八嶋 裕之
KISHI Sachiyo
岸 幸代
OTSUKA Kunihiko
大塚 邦彦
ISHIGAKI Yuhei
石垣 雄平
Title: CHLOROPRENE RUBBER COMPOSITION AND ADHESIVE COMPOSITION USING SAID CHLOROPRENE RUBBER COMPOSITION
Abstract:
The present invention provides a chloroprene polymer composition that is less prone to discoloration even when exposed to heat and light. Provided is a chloroprene rubber composition obtained by: performing emulsion polymerization in the presence of 0.5-7.0 parts by mass of a rosin acid salt as an emulsifier; and terminating the emulsion polymerization by adding a polymerization inhibitor and also a phosphorus-based compound or a phenol-based compound as an antioxidant. With the present invention, it is possible to obtain a chloroprene polymer composition having excellent discoloration resistance to heat and light. Thus, this chloroprene polymer composition can be used suitably as an adhesive used for cloth materials, leather materials, foamed sheets, paper materials, wood materials, shoe parts, and the like.