Title:
LOW-HEAT-GENERATION, TEAR-RESISTANT RUBBER COMPOSITION FOR ENGINEERING TIRE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/100629
Kind Code:
A1
Abstract:
A low-heat-generation, tear-resistant rubber composition for an engineering tire and a preparation method therefor. The preparation comprises: (1) preparing a rubber elastomer, carbon black, a hydrazide rubber modifier, zinc oxide, stearic acid and a tear-resistant auxiliary as a primary masterbatch in an internal mixer, wherein the parts by weight of the zinc oxide is less than 1.5 times the parts by weight of the hydrazide rubber modifier; (2) mixing the primary masterbatch, white carbon black, a coupling agent and an anti-aging agent in an internal mixer to produce a second masterbatch; and (3) mixing the primary masterbatch and the second masterbatch with another zinc oxide, an accelerator, and a vulcanizing agent in a composition ratio to prepare a rubber composition. The rubber composition obtained by the preparation method can effectively reduce the heat generated by a tire and improve the tear resistance of the tire. The preparation method is simple, and convenient to industrially produce.
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Inventors:
SHI CHAO (CN)
CUI JIE (CN)
WANG DIANZUN (CN)
LIU YONG (CN)
YANG KAIYU (CN)
CUI JIE (CN)
WANG DIANZUN (CN)
LIU YONG (CN)
YANG KAIYU (CN)
Application Number:
PCT/CN2021/129904
Publication Date:
May 19, 2022
Filing Date:
November 10, 2021
Export Citation:
Assignee:
SAILUN GROUP CO LTD (CN)
International Classes:
C08L7/00; C08K3/22; C08K5/25; C08K13/02; C08L9/00; C08L9/06
Foreign References:
| JP2001172435A | 2001-06-26 | |||
| JP2009101920A | 2009-05-14 | |||
| JP2010241898A | 2010-10-28 | |||
| JP2014005381A | 2014-01-16 | |||
| JP2018104310A | 2018-07-05 | |||
| CN101511584A | 2009-08-19 | |||
| CN110023398A | 2019-07-16 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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