US 10,865,292 B1 · Pneumatic tire with improved bead filler

Abstract

A vulcanizable composition for preparing bead filler, the composition comprising a vulcanized rubber; and a vinyl aromatic-containing block copolymer compound, where the vinyl aromatic-containing copolymer is defined by the formula II d-Vo-D-V′-ω II where each V is independently a polyvinyl aromatic block, D is a polydiene block, w is a hydrogen atom, a functional group, or a polymeric segment or block, and where d is a polydiene block, and where the overall vinyl content of the block copolymer is greater than 65%.

Claims12

Dependent claims

A tire comprising:

a bead filler including the vulcanized residue of a vulcanizable composition including a rubber and a vinyl aromatic-containing block copolymer compound, where the vinyl aromatic-containing copolymer is defined by the formula II
d-Vo-D-V′-ω II
where each V is independently a polyvinyl aromatic block, D is a polydiene block, ω is a hydrogen atom, a functional group, or a polymeric segment or block, and where d is a polydiene block, and where the overall vinyl content of the block copolymer is greater than 80%.

Dependencies are inferred from the claim text.

Facts

Application

15/689,793Filed 29 Aug 2017 · us provisional application

Priority

29 Aug 2016

Granted

15 Dec 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C08L 9/06
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons: copolymers with styrene
B60C 15/0603
Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead: characterised by features of the bead filler…
C08J 3/24
Processes of treating or compounding macromolecular substances: crosslinking, e.g. vulcanising, of macromolecules
C08K 3/04
Elements: carbon

Pneumatic tire with improved bead filler

Life of this patent

Pneumatic tire with improved bead filler

Life of this patent

Abstract

Claims12