Bridgestone Corporation

Other

Mark W Smale

William M Cole

Yingyi Huang

Hiroshi Mouri

Robert W White

Steven Luo

Kevin Michael McCauley

Timothy Leonard Tartamella

Zhong-Ren Chen

Randhir Shetty

Michael R Hartzell

Taigyoo Park

Yoichi Ozawa

Michael W Hayes

Junko Kurazumi

Kevin Mccauley

Kevin M Mccauley

Provided herein are organic solvent-based processes for the removal of rubber from non-plants such as guayule shrubs. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

Processes for the removal of rubber from non-plants

Processes for the removal of rubber from non-hevea plants

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non-plants.

Processes for recovering rubber from aged briquettes

Provided herein are methods for the removal of organic solvents from wet bagasse. The use of the methods result in dried bagasse that contains no more than 1 weight percent organic solvents.

Methods for the desolventization of bagasse

Methods for increasing the extractable rubber content of non-plant matter that entail the use of particular forms of hammer milling and/or roller milling in an increase in the amount of rubber that can be extracted from the resulting plant matter such as by organic solvent extraction or aqueous extraction are provided. In certain embodiments, the methods are for increasing the extractable rubber content of guayule plant matter, and entail the use of particular forms of hammer milling in combination with roller milling and flaking to increase the amount of rubber that can be extracted from the guayule plant matter such as by organic solvent extraction or aqueous extraction.

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A method includes: mixing a polymer cement and a filler to form a solution masterbatch; optionally drying the solution masterbatch to form a crumb polymer composition; mixing a low viscosity polymeric or oligomeric liquid into the solution masterbatch or crumb polymer composition; and intermeshing mixing the solution masterbatch or crumb polymer composition.

Intermeshing mixing of filler and polymer solution masterbatch

Provided herein are organic solvent-based processes for the removal of rubber from aged briquettes made from compressed plant matter (briquettes) of non-plants. Also provided are aged briquettes made from the compressed plant matter of non-plants where the briquettes have been aged for either various time period after formation and the rubber within the briquette has retained its a molecular weight to within a specified range.

Methods for desolventization of bagasse

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Hudson, OH, United States of America

Mark W Smale