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:
Oct. 01, 2024

Filed:

Dec. 09, 2021
Applicant:

The Goodyear Tire & Rubber Company, Akron, OH (US);

Inventors:

George Jim Papakonstantopoulos, Medina, OH (US);

Brad Stephen Gulas, Fairlawn, OH (US);

Bruce Raymond Hahn, Hudson, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/06 (2006.01); B60C 1/00 (2006.01); C08K 3/36 (2006.01); C08K 5/54 (2006.01); C08K 5/548 (2006.01); C08K 9/06 (2006.01); C08L 9/06 (2006.01);
U.S. Cl.
CPC ...
C08K 3/06 (2013.01); B60C 1/0016 (2013.01); C08K 3/36 (2013.01); C08K 5/5403 (2013.01); C08K 5/548 (2013.01); C08K 9/06 (2013.01); C08L 9/06 (2013.01);
Abstract

The subject invention is based upon the unexpected discovery that the use of a very specific combination of hydrophobating silanes and sulfur crosslinkable silanes can be used to attain outstanding performance characteristics in silica reinforced rubber formulations. More specifically, these rubber formulations provide a highly desirable combination of both improved abrasion characteristics and reduced hysteresis without compromising other important rubber characteristics. The present invention more specifically discloses a sulfur cured rubber formulation which is the reaction product of (1) at least one rubbery polymer, (2) sulfur, (3) silica, (4) 2 phf to 12 phf of a hydrophobating silane, and (5) 0.5 phf to 3 phf of a crosslinkable silane. The weight ratio of the hydrophobating silane to the crosslinkable silane will typically be within the range of about 2:1 to about 20:1.


Find Patent Forward Citations

Papakonstantopoulos, George. (2024). Silica reinforced rubber (U.S. Patent No. 12104038). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12104038

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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