Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2017/126632
Kind Code:
A1
Abstract:
As a rubber composition capable of improving both on-ice performance and abrasion resistance of a tire, the present invention provides a rubber composition characterized by the following: containing silica, carbon black and at least two types of diene-based polymers that form a plurality of mutually incompatible polymer phases; in that a diene-based polymer (A), which is blended at a quantity of 20 mass% or more relative to the total quantity of the diene-based polymers and which has the lowest glass transition temperature (Tg) among the diene-based polymers, is modified at a degree of modification of 1.1 or more by a compound comprising a tin atom and/or a nitrogen atom; in that the blending quantity of the silica is 25 parts by mass or more relative to the total of 100 parts by mass of the diene-based polymers; and in that the blending quantity of the carbon black is 25 parts by mass or more relative to the total of 100 parts by mass of the diene-based polymers.
Inventors:
NUKAGA HIDEYUKI (JP)
Application Number:
PCT/JP2017/001813
Publication Date:
July 27, 2017
Filing Date:
January 19, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L9/00; B60C1/00; C08K3/04; C08K3/36; C08L7/00; C08L15/00
Foreign References:
| JPH11189616A | 1999-07-13 | |||
| JP2001158836A | 2001-06-12 | |||
| JP2004238619A | 2004-08-26 | |||
| JP2001011237A | 2001-01-16 | |||
| US20110048605A1 | 2011-03-03 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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