US5386865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire with rubber sidewall
Assignee: Goodyear Tire and Rubber Co
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Filing: 1991-10-21
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Granted: 1995-02-07
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Expires: 2011-10-21
Abstract
Abstract A pneumatic rubber tire having a rubber sidewall composition containing trans 1,4-polybutadiene rubber and at least one additional rubber.
Inventors
- 👤 Paul H. Sandstrom
- 👤 Thomas J. Segatta
- 👤 II Johnny D. Massie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:08
CPC Classifications
C; C08; C08L; C08L7/00; B; B60; B60C; B60C1/00; B60C1/0025; C08L21/00; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A pneumatic rubber tire having an outer rubber sidewall layer where said outer layer is comprised of, based on 100 pans by weight rubber, (i) about 5 to about 10 parts by weight of a trans 1,4-polybutadiene rubber and, correspondingly about 95 to about 90 parts by weight of at least one additional rubber; wherein said trans 1,4-polybutadiene rubber is characterized by having 75 to 85 percent trans 1,4-content, a molecular weight (Mn) of about 205,000 and prepared by polymerizing 1,3-butadiene in an organic solvent in the presence of a catalyst of cobalt octoate and triethylaluminum with p-dodecylphenol modifier; and wherein said additional rubber is selected from at least one of natural rubber and/or synthetic cis 1,4-polyisoprene rubber, cis 1,4-polybutadiene rubber, styrene/butadiene copolymer rubber, styrene/isoprene/butadiene terpolymer rubber and 3,4-polyisoprene rubber.
Claim 2
Dependent Claim
130 words
A pneumatic rubber tire having an outer rubber sidewall layer where said outer layer is comprised of, based on 100 pans by weight rubber, (i) about 5 to about 10 parts by weight of a trans 1,4-polybutadiene rubber and, correspondingly about 95 to about 90 parts by weight of at least one additional rubber; wherein said trans 1,4-polybutadiene rubber is characterized by having 75 to 85 percent trans 1,4-content, a molecular weight (Mn) of about 205,000 and prepared by polymerizing 1,3-butadiene in an organic solvent in the presence of a catalyst of cobalt octoate and triethylaluminum with p-dodecylphenol modifier; and wherein said additional rubber is selected from at least one of natural rubber and/or synthetic cis 1,4-polyisoprene rubber, cis 1,4-polybutadiene rubber, styrene/butadiene copolymer rubber, styrene/isoprene/butadiene terpolymer rubber and 3,4-polyisoprene rubber.
References Cited (Backward Citations)
US3166609A
Cited
CA870053A
Cited
US3830274A
Cited
US4310582A
Cited
US4510291A
Cited
JPS60197749A
Cited
JPH01242642A
Cited
JPH02308833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |