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. 06, 2022
Filed:
Feb. 11, 2020
Georg Bohm, Akron, OH (US);
Xuesong Yan, Shanghai, CN;
Yu Sun, Cuyahoga Falls, OH (US);
LI Jia, Hudson, OH (US);
Georg Bohm, Akron, OH (US);
Xuesong Yan, Shanghai, CN;
Yu Sun, Cuyahoga Falls, OH (US);
Li Jia, Hudson, OH (US);
APPIA, LLC, Akron, OH (US);
Abstract
A method, and product thereof, for modifying the surface of recycled sulfur-cured rubber via surface devulcanization that minimizes alteration of the network structure of the recycled sulfur-cured rubber, while generating strong tack between mixed recycled rubber and fresh rubber for optimal adhesion upon subsequent co-curing. In one embodiment, the surface of recycled rubber is devulcanized by treating recycled rubber with a thiol and a base dissolved in a solvent that does not effectively penetrate and only minimally swells vulcanized rubbers.