Patent ID: 9683089
Date: 2017-06-20
CPC Classifications: B29B,B29K,C08J,C08K,C08L,Y02W

Claim:
1. A method of treating rubber-containing particles comprising: mixing rubber-containing particles, at least one fatty acid-containing material, and talc in a friction mixer to thereby generate sufficient heat to raise the temperature of the mixture to at least 200° F. and to produce a rubber-containing particulate mixture, wherein the temperature is raised without application of an external heat source to the rubber-containing particles or the fatty acid-containing material, the fatty-acid containing material is added and mixed with the rubber-containing particles after the rubber-containing particles are frictionally heated in the friction mixer to the temperature of at least 200° F., and the fatty-acid containing material is not pre-heated prior to mixing with the heated rubber-containing particles.