Method of removing contaminants from plastic resins

Details Method of removing contaminants from plastic resins Method of removing contaminants from plastic resins

2006-05-31

2008-11-18

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...

C424S735000, C514S027000

Reexamination Certificate

active

07452962

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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