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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 11440977 B1

PDFFull Text
Date of Patent:
Sep. 13, 2022

Filed:

Feb. 13, 2018

Guayule latex extrusion

Applicant:

Cooper Tire & Rubber Company, Findlay, OH (US);

Inventors:

Nicolas Sauty, Perrysburg, OH (US);

Brittney Sunday, Libertyville, IL (US);

Howard Colvin, Wayne, OH (US);

Assignee:

Cooper Tire & Rubber Company, Findlay, OH (US);

Attorney:

Mandy B. Willis

Primary Examiner:

Irina S Zemel

Assistant Examiner:

Jeffrey S Lenihan

Int. Cl.
CPC ...
C07C 49/08 (2006.01); C07C 9/14 (2006.01); C08C 1/15 (2006.01); C08C 3/02 (2006.01); B29B 7/80 (2006.01); B29C 48/00 (2019.01); B29B 7/86 (2006.01); B29B 7/74 (2006.01); B29C 48/03 (2019.01); B29B 7/84 (2006.01); B29B 7/00 (2006.01); B29C 48/76 (2019.01); B29B 7/40 (2006.01); B29B 9/06 (2006.01); B29B 7/46 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08C 1/15 (2013.01); B29B 7/007 (2013.01); B29B 7/7495 (2013.01); B29B 7/80 (2013.01); B29B 7/842 (2013.01); B29B 7/86 (2013.01); B29C 48/0022 (2019.02); B29C 48/022 (2019.02); B29C 48/03 (2019.02); B29C 48/767 (2019.02); C07C 9/14 (2013.01); C07C 49/08 (2013.01); C08C 3/02 (2013.01); B29B 7/40 (2013.01); B29B 7/46 (2013.01); B29B 7/805 (2013.01); B29B 9/06 (2013.01); B29C 48/762 (2019.02); B29K 2105/0064 (2013.01);
Abstract

A latex processing system and method involves mixing a latex and at least one solvent blend in an extruder, in order to remove resin found in the latex and to coagulate the latex to form a coagulum. The at least one solvent blend has a first solvent configured to coagulate the latex, and a second solvent configured to swell the resulting coagulum. In particular, a series of the solvent blends may be used at different locations along a length of the extruder, and may further include distinct blends of the first solvent and the second solvent, introduced at the different locations, and having different ratios of the first solvent and the second solvent.

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