Patent · US Active

Polyurethane-containing tread rubber compositions and related methods

US11712926B2 · kind B2 · utility

0Cited by

27References

17Claims

0Family size

Assignee

BRIDGESTONE CORPORATION · JP

Inventors

Yaohong Chen · Akron, US
Mindaugas Rackaitis · Massillon, US
Wei Zhao · East Setauket, US

Key dates

Filing date	Dec 13, 2018
Grant date	Aug 1, 2023
Priority date	—
Expiry date	Jan 29, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/03
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Disclosed herein are tread rubber compositions containing a specified polyurethane, tires containing a tread made from the rubber compositions, and related methods of improving the wet and dry traction of a tire tread by using the polyurethane-containing rubber compositions. The polyurethane includes a saturated hydroxy-functionalized polydiene segment as diol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.