Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2022/080463
Kind Code:
A1
Abstract:
This tire comprises a tread, wherein: the tread has land parts partitioned by a plurality of circumferential grooves, and has locations where, in a tire meridian cross-section including the tire rotation axis, the widthwise length of the land part closest to the tire equatorial plane increases from the outside to the inside in the tire radial direction; the tread has at least one rubber layer; a first rubber layer constituting the tread surface is configured from a rubber composition containing a rubber component that includes a diene-based rubber; and the contact angle A1 of pure water measured after immersing the rubber composition constituting the first rubber layer in water for one hour at 23°C under normal pressure and furthermore leaving the rubber composition to dry for 24 hours at 23°C under normal pressure, and the contact angle A2 of pure water measured after measuring the contact angle A1 and then immersing the rubber composition in water for one hour at 23°C under normal pressure and furthermore leaving the rubber composition to dry for 24 hours at 23°C under normal pressure, are both 80° or less.
Inventors:
ICHIMOTO YAMATO (JP)
ONO SHUICHIRO (JP)
ONO SHUICHIRO (JP)
Application Number:
PCT/JP2021/038103
Publication Date:
April 21, 2022
Filing Date:
October 14, 2021
Export Citation:
Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C11/00; B60C1/00; B60C11/13; C08L15/00; C08L21/00; C08L45/00; C08L57/02; C08L101/02
Foreign References:
| JP2005041960A | 2005-02-17 | |||
| JP6699079B1 | 2020-05-27 | |||
| JP2010106250A | 2010-05-13 | |||
| JP2014133793A | 2014-07-24 | |||
| JP2011001404A | 2011-01-06 | |||
| JP2019089987A | 2019-06-13 | |||
| JP2019044154A | 2019-03-22 | |||
| JP2018062560A | 2018-04-19 | |||
| JP2020055980A | 2020-04-09 | |||
| JP2020132860A | 2020-08-31 | |||
| JP2007056137A | 2007-03-08 |
Other References:
GELLING, I. R.: "Epoxidised Natural Rubber", JOURNAL OF NATURAL RUBBER RESEARCH, vol. 6, no. 3, 1 January 1991 (1991-01-01), pages 184 - 205, XP009535867, ISSN: 0127-7065
RSC ADV, vol. 6, 2016, pages 107021 - 107028
ADVANCED MATERIALS RESEARCH, vol. 795, 2013, pages 251 - 255
RSC ADV, vol. 6, 2016, pages 107021 - 107028
ADVANCED MATERIALS RESEARCH, vol. 795, 2013, pages 251 - 255
Attorney, Agent or Firm:
ASAHINA & CO. (JP)
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