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US 2012/0059084 A1Published application
Method and System for Treating Elastomers and Articles Made Therefrom
AssigneePrime Elastomers, LLC
InventorsGary Brown, Clifford C. Fay
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Abstract
A method and system for treating rubber-containing elastomers to produce materials suitable for blending with thermoplastic or thermoset polymers are disclosed. The elastomers may comprise virgin or recycled particulate rubber such as from used tires. The blended rubber and polymer materials possess thermoplastic properties and can be reused many times.
Claims36
A method of making blended elastomeric and plastic materials comprising:
- mixing elastomeric particles comprising rubber and at least one fatty acid-containing material in a friction mixer to thereby generate sufficient heat to raise the temperature of the rubber-containing particulate mixture to a selected mixing temperature;
- blending the rubber-containing particulate mixture with at least one thermoplastic or thermoset polymer;
- and
- recovering a blended material comprising the rubber and the at least one thermoplastic or thermoset polymer.
1 more element
A method of treating rubber-containing particles comprising:
- mixing rubber particles and at least one fatty acid-containing material in a friction mixer to thereby generate sufficient heat to raise the temperature of the mixture to at least 200° F., wherein the temperature is raised without application of an external heat source to the rubber-containing particles or the fatty acid-containing material.
A method of treating rubber particles comprising:
- mixing rubber-containing particles and at least one fatty acid-containing material in a friction mixer to thereby generate sufficient heat to raise the temperature of the mixture to a selected mixing temperature;
- and
- treating the particulate mixture with a source of ultraviolet radiation.
Dependencies are inferred from the claim text.