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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.:

US 9701081 B1

PDFFull Text
Date of Patent:
Jul. 11, 2017

Filed:

Nov. 19, 2010

Method for forming stratified rubber article with variable cure rate

Applicants:

Richard Michael D'sidocky, Ravenna, OH (US);

Rebecca Lee Dando, Uniontown, OH (US);

Gary Robert Burg, Massillon, OH (US);

Neil Phillip Stuber, Munroe Falls, OH (US);

Carl Trevor Ross Pulford, Akron, OH (US);

Inventors:

Richard Michael D'Sidocky, Ravenna, OH (US);

Rebecca Lee Dando, Uniontown, OH (US);

Gary Robert Burg, Massillon, OH (US);

Neil Phillip Stuber, Munroe Falls, OH (US);

Carl Trevor Ross Pulford, Akron, OH (US);

Assignee:

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

Attorney:

June E. Rickey

Primary Examiner:

Martin Rogers

Int. Cl.
CPC ...
B29D 30/62 (2006.01); B29D 30/16 (2006.01); B29B 7/38 (2006.01); B29C 47/10 (2006.01); B29C 47/36 (2006.01); B29C 47/92 (2006.01); B29D 30/30 (2006.01); B29C 47/38 (2006.01); B29C 47/82 (2006.01); B29C 47/00 (2006.01); B29K 21/00 (2006.01); B29K 105/00 (2006.01); B29L 30/00 (2006.01); B29L 31/00 (2006.01); B29C 47/06 (2006.01);
U.S. Cl.
CPC ...
B29D 30/16 (2013.01); B29B 7/38 (2013.01); B29C 47/1063 (2013.01); B29C 47/1081 (2013.01); B29C 47/364 (2013.01); B29C 47/385 (2013.01); B29C 47/822 (2013.01); B29C 47/92 (2013.01); B29D 30/30 (2013.01); B29D 30/62 (2013.01); B29C 47/0021 (2013.01); B29C 47/0023 (2013.01); B29C 47/0057 (2013.01); B29C 47/062 (2013.01); B29C 47/367 (2013.01); B29C 2947/926 (2013.01); B29C 2947/9258 (2013.01); B29C 2947/92561 (2013.01); B29C 2947/92657 (2013.01); B29C 2947/92695 (2013.01); B29C 2947/92704 (2013.01); B29C 2947/92952 (2013.01); B29K 2021/00 (2013.01); B29K 2105/0005 (2013.01); B29L 2030/00 (2013.01); B29L 2031/7102 (2013.01);
Abstract

A method of forming a tread comprising two or more layers of rubber is described. The method includes the steps of: extruding a rubber compound through an extruder and a gear pump and mixing with an accelerant and then applying a continuous strip of rubber directly onto a tire building machine to form a first layer of rubber having a first cure rate; adjusting the amount of accelerant to obtain a second cure rate different than said first cure rate, and then applying a strip of rubber having a second cure rate onto the tire building machine, wherein one of the cure rates is faster than the other cure rate.

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