The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Dec. 29, 2009
Yaohong Chen, Akron, OH (US);
Mindaugas Rackaitis, Massillon, OH (US);
Xiaorong Wang, Hudson, OH (US);
Hideki Kitano, Tokyo, JP;
Yaohong Chen, Akron, OH (US);
Mindaugas Rackaitis, Massillon, OH (US);
Xiaorong Wang, Hudson, OH (US);
Hideki Kitano, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A method is provided for synthesizing a core-shell nanoparticle that includes the following steps: providing a polymeric seed (in a solvent) that includes a mono-vinyl monomer cross-linked with a cross-linking agent to form the core of the nanoparticle, the core has an average diameter of from about nanometers to about 10,000 nanometers, and the core has polymer chains with living ends; adding a stabilizer to stabilize the seed and prevent the seed from precipitating out of solution; and grafting a shell species onto the living ends of the core to form the shell of the nanoparticle. A core-first synthesized nanoparticle, along with a rubber composition and tire product are also provided.