Title:
METHOD FOR USING S-(3-AMINOPROPYL)THIOSULFURIC ACID AND/OR METAL SALT THEREOF
Document Type and Number:
WIPO Patent Application WO/2012/002517
Kind Code:
A1
Abstract:
Disclosed is a method for using the S-(3-aminopropyl)thiosulfuric acid and/or metal salt thereof which is to be added to a rubber ingredient that is a raw material for a vulcanized rubber composition. The method is characterized by comprising a pre-kneading step (A) in which a rubber ingredient, a filler, and S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof are kneaded, a post-kneading step (B) in which the mixture (A) obtained in the pre-kneading step (A), a sulfur ingredient, and a vulcanization accelerator are kneaded, the accelerator being used in a larger amount by weight than the sulfur ingredient, and a heat treatment step (C) in which the mixture (B) obtained in the post-kneading step (B) is heat-treated to obtain a vulcanized rubber composition. The method is further characterized by imparting durability to the vulcanized rubber composition.
Inventors:
UEKITA YASUO (JP)
TAKEUCHI KENICHI (JP)
OHTA YOSHITERU (JP)
TAKEUCHI KENICHI (JP)
OHTA YOSHITERU (JP)
Application Number:
PCT/JP2011/065126
Publication Date:
January 05, 2012
Filing Date:
June 24, 2011
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
UEKITA YASUO (JP)
TAKEUCHI KENICHI (JP)
OHTA YOSHITERU (JP)
UEKITA YASUO (JP)
TAKEUCHI KENICHI (JP)
OHTA YOSHITERU (JP)
International Classes:
B60C1/00; C08J3/20; C08J3/24; C08K3/00; C08K5/41; C08L21/00
Foreign References:
| JPS60199643A | 1985-10-09 | |||
| US3732192A | 1973-05-08 | |||
| JPS5817132A | 1983-02-01 | |||
| JPS5991140A | 1984-05-25 | |||
| JPH10510861A | 1998-10-20 | |||
| JP2009046578A | 2009-03-05 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Nakayama δΊ¨ (JP)
Download PDF:
Claims: