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.

Date of Patent:
May. 12, 2026

Filed:

Dec. 28, 2022
Applicant:

Bridgestone Americas Tire Operations, Llc, Nashville, TN (US);

Inventors:

Vishal K. Chaurasia, Kent, OH (US);

Yenni Marcela Castano Gil, Northfield, OH (US);

Kung-Ching Liao, Akron, OH (US);

Kentaro Kayashima, Copley, OH (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29D 30/56 (2006.01); C08G 18/10 (2006.01); C08G 18/30 (2006.01); C08J 5/12 (2006.01); C08J 7/12 (2006.01); C09J 175/04 (2006.01); B29D 30/54 (2006.01);
U.S. Cl.
CPC ...
B29D 30/56 (2013.01); C08G 18/10 (2013.01); C08G 18/307 (2013.01); C08J 5/124 (2013.01); C08J 7/126 (2013.01); C09J 175/04 (2013.01); B29D 2030/544 (2013.01); C08J 2307/00 (2013.01); C08J 2309/06 (2013.01); C09J 2407/006 (2013.01); C09J 2409/006 (2013.01);
Abstract

A method for preparing a retreaded tire, the method comprising (a) providing a tire casing; (b) providing a pre-cured tire tread; (c) applying a primer composition to the tire casing, the pre-cured tread, or both the tire casing and the pre-cured tread therefore form at least one primer layer, where the primer composition includes a halogenating agent and a solvent; (d) applying a urethane-based adhesive composition to at least one of the tire casing, an adhesive layer, the pre-cured tread, or the at least one primer layer; (e) mating the pre-cured tread to the tire casing to thereby sandwich the adhesive layer between the pre-cured tread and the tire casing and form a pre-cured composite: and (f) allowing the adhesive layer of the pre-cured composite to cure and thereby form a retreaded tire.


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