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US 7,598,322 B1Granted
Functionalized polymers and improved tires therefrom
AssigneeBridgestone Corporation
InventorsChristine Rademacher, Steven Luo, Terrence E. Hogan
Life of this patent
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Abstract
A tire component comprising a vulcanized rubber deriving from a functionalized polymer defined by the formula I where π is a polymer chain, B is a boron atom, R1 is a bond or a divalent organic group, and each υ is independently selected from alkoxy groups (—OR), thioalkoxy groups (—SR), amino groups (—NR2), or phosphino groups (—PR2), where each R is independently selected from monovalent organic groups or two R groups form a divalent organic group, which forms a cyclic structure.
Claims15
A tire component comprising:
- a vulcanized residue of a functionalized polymer defined by the formula I
- where π is a rubbery polymer chain, B is a boron atom, R1 is a bond or a divalent organic group, and each υ is independently selected from alkoxy groups (—OR), where each R is independently selected from monovalent organic groups or two R groups form a divalent organic group, which forms a cyclic structure.
A tire component prepared by a process comprising:
- vulcanizing a rubber formulation comprising a vulcanizable rubber and a filler, where the vulcanizable rubber includes a functionalized polymer that is defined by the formula I
- where π is a rubbery polymer chain, B is a boron atom, R1 is a bond or a divalent organic group, and each υ is independently selected from alkoxy groups (—OR), where each R is independently selected from monovalent organic groups or two R groups form a divalent organic group, which forms a cyclic structure.
Dependencies are inferred from the claim text.