Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1989-05-18
2000-04-25
Kuhns, Allan R.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283099, 4283144, 4283179, 4283191, 428339, 264 453, 264 462, 264 463, 264 50, 264 53, 264258, 264DIG5, 425115, 425817C, B32B 520, C08J 930, B29C 4424, B29C 3918
Patent
active
RE0366749
ABSTRACT:
A method for continuously producing an insulation board comprising a rigid plastic foam core having two major surfaces and a facing material on one or both of the major surfaces, the method including conveying a facing material along a production line, depositing a partially expanded froth foam of a plastic mixture, which contains at least one frothing agent, on the facing material, and further expanding and curing the froth foam in contact wiht the facing material to form the insulation board. The board is particularly useful as roof insulation.
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DeLeon Alberto
Gluck David G.
Oliver John P.
Kuhns Allan R.
The Celotex Corporation
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