Title:
SULFUR-MODIFIED CHLOROPRENE RUBBER, MOLDING THEREOF, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/070347
Kind Code:
A1
Abstract:
Provided are a sulfur-modified chloroprene rubber with reduced heat-generating properties, a molding thereof, and a production method therefor. A sulfur-modified chloroprene rubber is provided wherein: the ends of the polymer are modified by at least one kind of compound selected from tetramethylthiuram disulfide, tetralkylthiuram disulfides having C2-7 alkyl groups, and dialkyl dithiocarbamates having C1-7 alkyl groups; the 1H-NMR spectrum measured in a deuterated chloroform solvent has peak tops at 3.55-3.61 ppm and 3.41-3.47 ppm and the ratio (A/B) of the 3.55-3.61 ppm peak area (A) to the 4.2-6.5 ppm peak area (B) is 0.05/100-0.50/100; and the amount extracted by an azeotropic ethanol/toluene mixture as provided by JIS K 6229 is 3.0-9.0 mass%.
Inventors:
KOBAYASHI NAOKI (JP)
SUZUKI RYOCHI (JP)
OSE MOTOHIRO (JP)
ABE YASUSHI (JP)
SUZUKI RYOCHI (JP)
OSE MOTOHIRO (JP)
ABE YASUSHI (JP)
Application Number:
PCT/JP2011/074507
Publication Date:
May 31, 2012
Filing Date:
October 25, 2011
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK (JP)
KOBAYASHI NAOKI (JP)
SUZUKI RYOCHI (JP)
OSE MOTOHIRO (JP)
ABE YASUSHI (JP)
KOBAYASHI NAOKI (JP)
SUZUKI RYOCHI (JP)
OSE MOTOHIRO (JP)
ABE YASUSHI (JP)
International Classes:
F16F1/36; C08C19/20; F16F15/08; F16G1/06
Foreign References:
| JP2009275124A | 2009-11-26 | |||
| JPH11116622A | 1999-04-27 | |||
| JPH093120A | 1997-01-07 | |||
| JPH0762029A | 1995-03-07 |
Other References:
See also references of EP 2644625A4
Attorney, Agent or Firm:
WATANABE Kaoru et al. (JP)
Kaoru Watanabe (JP)
Kaoru Watanabe (JP)
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Claims:
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