Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2008-07-01
2008-07-01
Buttner, David (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S135000, C525S137000, C525S138000, C525S139000
Reexamination Certificate
active
10530532
ABSTRACT:
As a rubber composition having an elasticity further increased as compared with the conventional rubber composition while preventing the lowering of the fracture resistance, there is provided a rubber composition comprising a rubber component of at least one of natural rubber and synthetic diene rubbers and a phenolic resin compounded therein and represented by the following formula (I):(wherein R0is a hydrogen atom, an alkyl group, a phenyl group or a methylol group, and each of R1and R2is an arylene group, an alkylene group having a carbon number of 2-10, an aralkylene group, a cycloalkenylene group or a cycloalkadienylene group, and n is 0-10).
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Bridgestone Corporation
Buttner David
Sughrue & Mion, PLLC
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