Method for removing contaminants from plastic resin

Details Method for removing contaminants from plastic resin Method for removing contaminants from plastic resin

2006-03-27

2008-12-30

Boykin, Terressa M (Department: 1796)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S125000, C422S131000

Reexamination Certificate

active

07470766

ABSTRACT:
A method for removing contaminants from synthetic resin material containers using a first organic solvent system and a second carbon dioxide system. The organic solvent is utilized for removing the contaminants from the synthetic resin material and the carbon dioxide is used to separate any residual organic solvent from the synthetic resin material.

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