Method for recycling a plastic material

Details Method for recycling a plastic material Method for recycling a plastic material

2006-06-06

2006-06-06

Yoon, Tae H. (Department: 1714)

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

Synthetic resins

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

C521S040000, C521S045500, C521S047000, C521S048000, C521S049000, C521S049500, C521S045000, C521S044500

Reexamination Certificate

active

07056956

ABSTRACT:
Process for recycling a plastic, according to which the plastic is brought into contact with a solvent capable of dissolving the same and the plastic dissolved in the solvent is precipitated using a non-solvent in the presence of a phase-separating agent, in which the phase-separating agent is compatible with the solvent and incompatible with the non-solvent, and is also present when the plastic is brought into contact with the solvent, and improves the dissolution of the plastic by the solvent.

REFERENCES:
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patent: 4469818 (1984-09-01), Grundmann
patent: 4668768 (1987-05-01), Mendiratta et al.
patent: 6172125 (2001-01-01), Vandenhende et al.
patent: 0 945 481 (1999-09-01), None
patent: 48-16987 (1973-03-01), None
Properties of Polymers, “Their Correlation with Chemical Structure . . . ” D.W. Van Krevelen, Elsevier (1990).
Solubility Parameter Values, H. Burrell, Inmont Corporation. Clifton, New Jersey.

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