CO2-assisted deploymerization, purification and recycling of...

Details CO2-assisted deploymerization, purification and recycling of... CO2-assisted deploymerization, purification and recycling of...

2005-07-19

2005-07-19

Wyrozebski, Katarzyna (Department: 1714)

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

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S048000, C521S048500, C521S049000, C521S049500

Reexamination Certificate

active

06919383

ABSTRACT:
A method of depolymerizing a polymer comprises contacting a polymer with a fluid comprising carbon dioxide and at least one component, wherein the fluid plasticizes the polymer and facilitates penetration of the component into the polymer to depolymerize the polymer and form oligomeric units, monomeric units, or combinations thereof.

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Paszun et al.,Chemical Recycling of Poly(ethylene terephthlate), Ind. Eng. Chem. Res., 1997, 36, pp. 1373-1383.

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