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
2005-10-13
2008-09-09
Gulakowski, Randy (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...
C525S236000, C525S211000, C525S240000, C525S242000, C524S497000, C524S490000, C524S491000, C152S525000
Reexamination Certificate
active
07423089
ABSTRACT:
This invention relates to preparation of rubber compositions comprised of EPDM and conjugated diene-based elastomer, particularly including cis 1,4-polyisoprene rubber, and particularly natural cis 1,4-polyisoprene rubber, blends and pneumatic rubber tire with an outer, visible sidewall layer of a rubber composition comprised of such rubber composition. For such preparation, a combination of at least two diverse EPDM elastomers is used together with a phase mixing process comprised of sequential phase mixing or parallel phase mixing in the sense of reinforcement filler and sulfur curatives.
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European Search Report, completed Nov. 29, 2006, for european patent application No. EP 06 121931.
Botts Bina Patel
Gulas Brad Stephen
Puhala Aaron Scott
Zhao Junling
Asinovsky Olga
Gulakowski Randy
The Goodyear Tire & Rubber Company
Young, Jr. Henry C.
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