Title:
SEALANT MATERIAL COMPOSITION AND TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/163256
Kind Code:
A1
Abstract:
A sealant material composition according to the present invention comprises (A) a rubber component, (B) a tackifying agent, and (C) a plasticizing agent, wherein the softening point of the (B) tackifying agent is not lower than 50°C, the kinematic viscosity of the (C) plasticizing agent at 40°C is not more than 2,500 mm2/s, and the mass ratio (C)/(B) of the plasticizing agent (C) to the (B) tackifying agent is not less than 0.35. Thus, it is possible to improve the sealing properties, the temperature dependence of viscosity, and the fluidity during tire storage exhibited by the sealant material composition.
Inventors:
KARASAWA YUICHIRO (JP)
SAIKI TAKEAKI (JP)
OKAMATSU TAKAHIRO (JP)
SAIKI TAKEAKI (JP)
OKAMATSU TAKAHIRO (JP)
Application Number:
PCT/JP2021/048121
Publication Date:
August 04, 2022
Filing Date:
December 24, 2021
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C1/00; B29C73/22; B60C19/12; C08K5/36; C08L7/00; C08L9/00; C08L57/02; C08L91/00; C09K3/10
Domestic Patent References:
| WO2019069904A1 | 2019-04-11 |
Foreign References:
| JP2019515824A | 2019-06-13 | |||
| JP2020507491A | 2020-03-12 | |||
| JP2011529972A | 2011-12-15 | |||
| JP2018053036A | 2018-04-05 | |||
| JP2008518065A | 2008-05-29 |
Attorney, Agent or Firm:
NODA, Shigeru (JP)
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