Extrusion of thermoplastic elastomers

Details Extrusion of thermoplastic elastomers Extrusion of thermoplastic elastomers

2011-06-07

2011-06-07

Crispino, Richard (Department: 1747)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S177100, C425S461000

Reexamination Certificate

active

07955540

ABSTRACT:
A method of forming a thermoplastic vulcanizate by first providing a melt-blender having a die through which melt-blended thermoplastic vulcanizate passes to form a shaped article; wherein the die comprises a flow design having at least one flow branch having a taper angle and a flow reservoir at the end of each flow branch; and wherein the taper angle of the flow design ranges from 5 to 20 degrees; followed by melt-blending a thermoplastic and an elastomer with an organic peroxide curative in the melt-blender to form a thermoplastic vulcanizate; and finally, passing the melt-blended thermoplastic vulcanizate through the flow design to form the shaped article.

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