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US 2026/0217976 A1Published application
Polydienes and polydiene copolymers with poly(alkylene oxide) grafts and the use of the same in the manufacture of tire components
OwnerRita E. COOK, Erin SHEEPWASHinventors
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Abstract
A tire tread comprising the vulcanized residue of a vulcanizable composition including (i) a poly(alkylene oxide) grafted polydiene or polydiene copolymers; (ii) a natural or synthetic elastomer; (iii) silica filler; and (vi) a curative, where the poly(alkylene oxide) grafted polydiene or polydiene copolymers includes a sulfur or methacrylate linkage between a polydiene or polydiene copolymer chain and a poly(alkylene oxide) chain.
Claims22
A tire tread comprising:
- the vulcanized residue of a vulcanizable composition including
- (i) a poly(alkylene oxide) grafted polydiene or polydiene copolymers;
- (ii) a natural or synthetic elastomer;
- (iii) silica filler;
- and
- (iv) a curative, where the poly(alkylene oxide) grafted polydiene or polydiene copolymers includes a sulfur or methacrylate linkage between a polydiene or polydiene copolymer chain and a poly(alkylene oxide) chain.
3 more elements
(canceled)
A method for preparing a poly(alkylene oxide) grafted polydiene or polydiene copolymer, the method comprising:
- (i) providing a polydiene or polydiene copolymer;
- (ii) providing an end-functionalized poly(alkylene oxide);
- (iii) combining the polydiene or polydiene copolymer with the end-functionalized poly(alkylene oxide) within a solvent;
- and
- (iv) allowing the polydiene or polydiene copolymer to react with the end-functionalized poly(alkylene oxide) in the presence of a free-radical initiator to thereby form a poly(alkylene oxide) grafted polydiene or polydiene copolymer including a polydiene or polydiene copolymer with a one or more poly(alkylene oxide) chains grafter thereto.
2 more elements
(canceled)
Dependencies are inferred from the claim text.