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1. (WO2018196398) TIRE SIDEWALL RUBBER WITHOUT MOLD RELEASE AGENT

Pub. No.:    WO/2018/196398    International Application No.:    PCT/CN2017/116081
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Dec 15 00:59:59 CET 2017
IPC: C08L 7/00
C08L 9/00
C08L 57/02
B60C 1/00
Applicants: DOUBLE COIN GROUP JIANGSU TYRE CO.,LTD.
双钱集团(江苏)轮胎有限公司
Inventors: FAN, Xuefeng
樊学锋
GAO, Xuemei
高雪梅
WU, Xiaowei
吴晓卫
Title: TIRE SIDEWALL RUBBER WITHOUT MOLD RELEASE AGENT
Abstract:
The present invention relates to a tire sidewall rubber without mold release agent. Said tire sidewall rubber is made of raw materials in the following parts by weight: 48-52 parts of natural rubber SMR20, 48-52 parts of cis-polybutadiene rubber BR9000, 40-45 parts of carbon black N330, 3-4 parts of zinc oxide with a specific surface of 4m2, 1-3 parts of stearic acid, 1-2 parts of lubricating agent BR-1, 3-3.3 parts of an anti-aging agent, 1-3 parts of a C5 resin, 3-5 parts of a paraffin oil, 0.6-1.0 part of accelerant NS, 0.1-0.14 parts of scorch retarder CTP, and 1-2 parts of a 200 mesh sulfur. The anti-aging agent is prepared by mixing anti-aging agent RD, anti-aging agent 4020, and anti-aging agent DTPD, the mass ratio of the anti-aging agent RD to the anti-aging agent 4020 to the anti-aging agent DTPD being 8 : 25 : 8. The present invention has the advantages that the tire sidewall rubber without mold release agent prepared by the formula of the present invention has a remarkable release effect, and can effectively increase the quality and comprehensive properties of products.