Title:
SYNTHESIS OF MONOFUNCTIONAL THIURAM ACCELERATOR
Document Type and Number:
Japanese Patent JP2021109871
Kind Code:
A
Abstract:
To provide a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective.SOLUTION: The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.SELECTED DRAWING: None
Inventors:
THOMAS FRANKLIN SPILKER
FRANK JAMES FEHER
FRANK JAMES FEHER
Application Number:
JP2020213096A
Publication Date:
August 02, 2021
Filing Date:
December 23, 2020
Export Citation:
Assignee:
GOODYEAR TIRE & RUBBER
International Classes:
C07C333/30
Attorney, Agent or Firm:
Osamu Yamamoto
Toru Miyamae
Junichi Matsuo
Hiroaki Noya
Toru Miyamae
Junichi Matsuo
Hiroaki Noya