Polyisoprene, rubber composition, and tire

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12227600
APP PUB NO 20220185921A1
SERIAL NO

17438644

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present disclosure provides a polyisoprene wherein: a vinyl bond content of the polyisoprene is 30 mol % or higher; and a ratio of the weight-average absolute molecular weight (Mw′) determined by GPC-MALS with respect to the weight-average molecular weight (Mw) in terms of polystyrene determined by GPC, i.e., Mw′/Mw, is 0.850 or less. A rubber composition containing the polyisoprene is excellent in the fuel-saving performance and grip performance on a wet road surface, as compared with a rubber composition containing the conventional polyisoprene.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • BRIDGESTONE CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hotta, Aya Tokyo, JP 1 0
Takano, Shigenaga Tokyo, JP 12 6
Tamaki, Satoru Tokyo, JP 21 44

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 18, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 18, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 18, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00