Rubber composition and pneumatic tire using the same

Details Rubber composition and pneumatic tire using the same Rubber composition and pneumatic tire using the same

2006-02-23

2011-10-04

Nutter, Nathan M (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S203000, C525S211000, C525S217000, C525S232000, C525S241000

Reexamination Certificate

active

08030406

ABSTRACT:
This invention relates to a rubber composition having a high storage modulus (G′) and a low loss tangent (tan δ), and more particularly to a rubber composition comprising 2 to 60 parts by mass of a low-molecular weight aromatic vinyl compound-conjugated diene compound copolymer (B) having an aromatic vinyl compound content of 5 to 80% by mass, a vinyl bond content in a conjugated diene compound portion of 5 to 80% by mass, a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 5,000 to 500,000 and at least one functional group based on 100 parts by mass of a rubber component (A) composed of at least one of natural rubber and synthetic diene-based rubbers.

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Decision of Rejection issued Jul. 19, 2011 in counterpart Chinese Application No. 200680012827.8.
Notification of Reasons for Refusal dated May 24, 2011 issued in counterpart Japanese Application No. JP2005-060634.
Notification of Reasons for Refusal dated May 24, 2011 issued in counterpart Japanese Application No. JP2005-228035.

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