Process for reclaiming polyethylene terephthalate scrap contamin

Details Process for reclaiming polyethylene terephthalate scrap contamin Process for reclaiming polyethylene terephthalate scrap contamin

1989-01-26

1989-09-26

Lieberman, Allan M.

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

Synthetic resins

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

521 46, 521 48, 523455, 523457, 523514, 523523, 525166, 525176, C08K 310, C08K 325, C08K 509, C08L 6702

Patent

active

048701106

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. on DMT-4A (Hydrotalcite-Like Compound).
Chevassus et al., "The Stabilization of Polyvinyl Chloride", Edward Arnold LTD, London, 1961, pp. 281, 351, 359.

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