Title:
ELASTOMER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2022/102460
Kind Code:
A1
Abstract:
Provided is an elastomer composition that can change the performance of a tire in response to a change in temperature. Also provided is a tire. The present disclosure pertains to an elastomer composition containing a butadiene elastomer and a temperature responsive resin having a hydrophilicity that changes due to to a change in temperature, said elastomer composition satisfying, for two prescribed temperatures having a temperature difference of at least 10°C therebetween, the conditions of the elastic modulus at the lower temperature when submerged in water/the elastic modulus at the lower temperature when dry≤0.95, and the elastic modulus at the higher temperature when submerged in water/the elastic modulus at the higher temperature when dry>0.95, said lower temperature being less than 25°C.
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Inventors:
AKAHORI TOMOHIRO (JP)
SAWAKI HARUKO (JP)
SAWAKI HARUKO (JP)
Application Number:
PCT/JP2021/040279
Publication Date:
May 19, 2022
Filing Date:
November 01, 2021
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
C08L9/00; B60C1/00; B60C15/06; C08L53/00; C08L101/02
Domestic Patent References:
| WO2020100627A1 | 2020-05-22 | |||
| WO2020022325A1 | 2020-01-30 |
Foreign References:
| JP2013136748A | 2013-07-11 | |||
| JP2018053179A | 2018-04-05 | |||
| JPH06248118A | 1994-09-06 | |||
| JP2013136749A | 2013-07-11 | |||
| JP2019083761A | 2019-06-06 | |||
| JP2021161312A | 2021-10-11 | |||
| JP2008214377A | 2008-09-18 | |||
| JP2019083761A | 2019-06-06 |
Other References:
N. MORI ET AL.: "Temperature Induced Changes in the Surface Wettability of SBR+PNIPA Films", MACROMOL. MATER. ENG., vol. 292, no. 917, 2007, pages 917 - 22
"Rubber, vulcanized or thermoplastic -Determination of hardness-Part 3: Durometer method", JIS K 6253-3, 2012
"Rubber, vulcanized or thermoplastic -Determination of hardness- Part 3: Durometer method", JIS K 6253-3, 2012
See also references of EP 4163330A4
"Rubber, vulcanized or thermoplastic -Determination of hardness-Part 3: Durometer method", JIS K 6253-3, 2012
"Rubber, vulcanized or thermoplastic -Determination of hardness- Part 3: Durometer method", JIS K 6253-3, 2012
See also references of EP 4163330A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
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