Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1990-12-11
1992-08-11
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
428198, 4283171, 4283177, 428921, B32B 310, B32B 324, B32B 3100
Patent
active
051377772
ABSTRACT:
A fire retardant polymer foam composite suitable for the making of packaging material, including a thin film of fire-retardant plastic extruded between layers of polymer foam sheets and bonded together to form a composite sheet of material having a sandwich structure.
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Legg Warren F.
Silverman Lance D.
Willis Wilfred E.
Ametek
Van Balen William J.
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