Panel and method for the preparation thereof

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component

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Details

428314, 428315, 428325, 428327, 521122, 521136, 521181, B32B 326, B32B 518, B32B 1902, B32B 2742

Patent

active

042333610

ABSTRACT:
Composite foam panels are prepared from expanded thermoplastic particles of low density by generally encapsulating the particles in a phenolic foam matrix and providing a particulate expanded mineral substance such as perlite disposed generally adjacent the major surfaces of the panel.

REFERENCES:
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patent: 3336184 (1967-08-01), Stastny et al.
patent: 3585157 (1971-06-01), Beck
patent: 3592782 (1971-07-01), Weber et al.
patent: 3707414 (1972-12-01), Wismer et al.
patent: 3842020 (1974-10-01), Garrett
patent: 3968300 (1976-07-01), Moss et al.
patent: 4067829 (1978-01-01), Garrett

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