Polymeric resinous material derived from limonene, dimethyl-dicyclopentadiene, indene and vinyl toluene
US6228944A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Jun 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Pneumatic tire characterized by improved dry traction and durability having a tread comprised of a diene-based elastomer containing olefinic unsaturation and 1-80 phr of a polymeric resinous material comprising: (1) from 5 to 70 weight % units derived from limonene; (2) from 5 to 70% units derived from dimethyl-dicyclopentadiene; (3) from 5 to 45 weight % units derived from indene; and (4) from 5 to 45 weight % units derived from vinyl toluene, wherein the sum of the weight percent units derived from limonene and dimethyl-dicyclopentadiene range from 40 to 75 weight percent units of the resin, and the sum of weight percent units derived from indene and vinyl toluene range from 25 to 60 weight percent units of the resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.