Recycling of barrier polystyrene foam scrap and barrier polystyr

Details Recycling of barrier polystyrene foam scrap and barrier polystyr Recycling of barrier polystyrene foam scrap and barrier polystyr

1992-05-13

1994-07-19

Lesmes, George F.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 94, 521 40, 521 405, B32B 326

Patent

active

053305965

ABSTRACT:
A barrier foam tray contains recycled reclaim of barrier foam. The tray comprises a sheet of foamed polystyrene (PS) having laminated to it a flexible barrier film. The foamed polystyrene part can have admixed therein from 0.0001% up to 30% by weight of the flexible barrier film. The barrier film contains a barrier polymer such as ethylene vinyl alcohol copolymer (EVOH). The tray is made by grinding laminate scrap and extruding reclaim therefrom with virgin polystyrene.

REFERENCES:
patent: 5118561 (1992-06-01), Gusavage et al.

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