Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1990-10-01
1992-06-02
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
156 78, 156 94, 428 365, 4283166, 4283179, 4283193, 4283197, 521 40, 521 405, B32B 326
Patent
active
051185610
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.
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Flye Susan R.
Gusavage Gerald G.
Hardy Thomas R.
Hessen Thomas A.
Schirmer Henry G.
Gregory Leigh P.
Lee, Jr. William D.
Quatt Mark B.
Van Balen William J.
W. R. Grace & Co.,-Conn.
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