Title:
MANUFACTURING METHOD OF ANTIOXIDANT OR VULCANIZATION ACCELERATOR
Document Type and Number:
Japanese Patent JP2016222574
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To manufacture an antioxidant or a vulcanization accelerator by a method with industrially excellent productivity while using plant as a raw material.SOLUTION: A manufacturing method includes a process of heat decomposing indigo extracted from plant in absence of a solvent to convert into aniline and/or N-alkyl aniline and a process of synthesizing an amine-based antioxidant, a benzimidazole-based antioxidant, a thiazole-based vulcanization accelerator, a sulfenamide-based vulcanization accelerator, a guanidine-based vulcanization accelerator or an alkylphenyl dithiocarbamate-based vulcanization accelerator from the resulting aniline or N-alkyl aniline.SELECTED DRAWING: None
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Inventors:
SAKAI SATOYUKI
Application Number:
JP2015109473A
Publication Date:
December 28, 2016
Filing Date:
May 29, 2015
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
C07C209/00; C07C211/46; C07C211/48; C07C333/16; C07D215/04; C07D277/72
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Isao Hirai
Takayoshi in the daytime
Masao Sakaizawa
Isao Hirai
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