Process for reclaiming polyethylene terephalate scrap contaminat

Details Process for reclaiming polyethylene terephalate scrap contaminat Process for reclaiming polyethylene terephalate scrap contaminat

1986-12-30

1989-05-02

Lieberman, Allan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523456, 523457, 524394, 524424, 524425, 524427, 525166, 525169, C08L 2706, C08L 2708, C08L 3308, C08L 6700

Patent

active

048268976

ABSTRACT:
Polyethylene terephthalate scrap material containing on its surface a chlorine-containing polymer such as, for example, polyvinylidene chloride or polyvinyl chloride, can be recovered and reused by melt-blending it with a polymer from a defined class of ethylene copolymers containing an epoxy group, and melt processing the blend in the same manner as virgin polyethylene terephthalate. The recovered and reprocessed polymer material has good physical properties and barrier properties.

REFERENCES:
patent: 4032594 (1977-06-01), Serratore et al.
patent: 4460729 (1984-07-01), Books
patent: 4555407 (1984-06-01), Yamane et al.
patent: 4602046 (1986-07-01), Buser et al.
Technical Bulletin, Kyowa Chemical Industry Co. (data unknown) on DMT-4A (Hydrotalcite-like Compound).
Chevassus et al, "The Stabilization of Polyvinyl Chloride", Edward Arnold Ltd., London, 1961, pp. 281, 352, 353.

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