ANTI-VULCANISATION REVERSION AGENT FOR RUBBER HAVING PARTICLE DIAMETER OF 40-100 μM AND NEW SYNTHESIS METHOD THEREFOR

WIPO Patent Application WO/2020/037831

A1

An anti-vulcanisation reversion agent for rubber having a particle diameter of 40-100 μm and a new synthesis method therefor, the synthesis steps comprising: first using a green synthesis water solvent method to synthesise intermediate 1, 6-bis (N, N,-dibenzothiazolecarbamoyl monosulphide)-hexane at room temperature under the action of a phase transfer catalyst, reacting the obtained intermediate with sulphur to obtain an initial product 1,6-bis (N, N,-dibenzothiazolecarbamoyl disulphide)-hexane, and performing a recrystallisation purification process on the initial product to obtain a 1,6-bis (N, N,-dibenzothiazolecarbamoyl disulphide)-hexane pure product. The solvent in the present synthesis method can be recovered and reused without generating waste water, being environmentally friendly and economical, the reaction time is short, the product is highly pure, the production efficiency is high, the synthesis process is simple, and energy consumption is low. The prepared anti-vulcanisation reversion agent for rubber has large granularity and narrow particle diameter distribution, and has good machining performance.

PENG HUALONG (CN)
PAN SHENGJIE (CN)
WANG YINGYING (CN)
YAO XIANG (CN)
FANG JIANMING (CN)

PCT/CN2018/113797

February 27, 2020

November 02, 2018

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JIANGSU CHEESHINE PERFORMANCE MAT CO LTD (CN)

C08L21/00; C07C333/20; C07C333/30; C08K5/47

CN105503677A	2016-04-20
CN105503677A	2016-04-20
CN103922982A	2014-07-16
CN103922982A	2014-07-16
CN108424552A	2018-08-21
CA2289434A1	2000-05-16
US3869435A	1975-03-04

SHENZHEN IPLUS INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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