Method and apparatus for removing additives from...

Details Method and apparatus for removing additives from... Method and apparatus for removing additives from...

2007-02-13

2008-10-14

Mulcahy, Peter D (Department: 1796)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S377000, C524S378000, C524S395000, C524S399000

Reexamination Certificate

active

07435772

ABSTRACT:
There is provided a treatment method of efficiently separating an additive component from a resin component for the purpose of treating and recycling a thermoplastic resin composition containing an additive. The treatment method includes heating and agitating the thermoplastic resin composition containing the additive together with a solvent for dissolving at least part of the additive at a temperature ranging from the glass transition temperature of the thermoplastic resin to the boiling point of the solvent inclusive, and separating and recovering the solvent in a liquid state in which at least part of the additive is dissolved, so that at least part of the additive is separated and removed from the thermoplastic resin composition.

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Japanese International Search Report for PCT/JP02/01768, dated Jul. 2, 2002.
English translation of Japanese Search Report for Application No. PCT/JP02/01768 dated May 29, 2003.

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