Title:
A RUBBER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/073906
Kind Code:
A1
Abstract:
A rubber composition, which allows unexpectedly improved efflorescence performance without deteriorated ozone resistance performance, is based on at least an elastomer matrix; an anti-ozone wax; and a crumb rubber; wherein the elastomer matrix comprises an isoprene elastomer; wherein the total amount of the isoprene elastomer is more than 27.00% by weight per 100.00% by weight of the rubber composition; wherein the total amount of the anti-ozone wax is more than 0.60% by weight and less than 1.70% by weight per 100.00% by weight of the rubber composition; wherein the crumb rubber comprises crumb rubber particles having a particle size of less than 74μm; and wherein a ratio by weight of the total amount of the crumb rubber particles having the particle size of less than 74μm to the total amount of the anti-ozone wax is more than 0.65.
Inventors:
MAETA YOSHIKO (JP)
MAYER SYLVAIN (FR)
RIOU ALINE (FR)
MAYER SYLVAIN (FR)
RIOU ALINE (FR)
Application Number:
PCT/JP2021/039972
Publication Date:
May 04, 2023
Filing Date:
October 29, 2021
Export Citation:
Assignee:
MICHELIN & CIE (FR)
International Classes:
B60C1/00; C08L7/00
Domestic Patent References:
| WO2020128330A1 | 2020-06-25 | |||
| WO2009083160A1 | 2009-07-09 |
Foreign References:
| US20200101793A1 | 2020-04-02 | |||
| US20210253833A1 | 2021-08-19 | |||
| US7445170B2 | 2008-11-04 | |||
| US7861958B2 | 2011-01-04 |
Attorney, Agent or Firm:
WADA Yukihiro (JP)
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