Bridgestone Corporation

Michael R Hartzell

Robert W White

Yingyi Huang

Taigyoo Park

William M Cole

Hiroshi Mouri

Mark W Smale

Mark N DeDecker

Erin Sheepwash

William S Niaura

Piotr Kozminski

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

Disclosed herein are process for increasing the molecular weight of guayule natural rubber that is solubilized in an organic solvent solution. The processes utilize shear desolventizing to achieve the increase in molecular weight.

Processes for increasing the molecular weight of guayule natural rubber

Disclosed herein are process for removing color bodies from an organic solution comprising guayule resin. The processes include the use of activated carbon.

Processes for removing color bodies from guayule

A method for forming a polymer-filler composite having advantageous bound filler content, the method comprising (a) providing a guayule cement; (b) introducing particulate filler to the guayule cement to form a solution masterbatch; and (c) desolventizing the solution masterbatch to form a polymer-filler composite.

Polymer-filler composites with guayule rubber

An extractor suitable for using a solvent to separate a compound from a solid or semisolid substance containing the compound. The extractor includes a conveying assembly having an inclined conveyor for receiving the substance from a substance inlet and moving the substance through the solvent, an inclined upper surface associated with the first conveyor and an inclined lower surface associated with the first conveyor. The conveyor is configured to move the substance downward through the solvent along the upper surface toward a lower end of the conveyor and upward through the solvent along the lower surface toward an upper end of the conveyor.

Extractor and related methods

Processes for the removal of rubber from non-hevea plants

Provided herein is a fractionator and related process for separating solubilized rubber from a co-solvent based miscella.

Growing community of inventors

Gold Canyon, AZ, United States of America

Michael R Hartzell