Phase change solvents for thermoplastic elastomers

Details Phase change solvents for thermoplastic elastomers Phase change solvents for thermoplastic elastomers

2003-05-05

2008-12-02

Mulcahy, Peter D (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S239000, C524S294000, C524S296000, C524S297000, C524S298000

Reexamination Certificate

active

07459494

ABSTRACT:
Novel elastomeric compositions that contain at least one thermoplastic elastomer and at least one phase change solvent. Above the phase change temperature, the phase change solvent solubilizes or intimately mixes with the thermoplastic elastomers. Below the phase change temperature, the phase change solvent solidifies or crystallizes within the thermoplastic matrix. The phase change behavior of these materials produce elastomeric compositions that exhibit lowered viscosity and lowered processing temperature without substantially compromising the mechanical properties. The present invention also relates a method of lowering the viscosity and improving the processability of a thermoplastic elastomer using the phase change solvent.

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