Process for making a laminate having a foam core

Details Process for making a laminate having a foam core Process for making a laminate having a foam core

1974-08-30

1976-04-20

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

264 458, 264 461, 264 462, 428 71, 428117, 428310, B32B 520

Patent

active

039517179

ABSTRACT:
A process is provided for the continuous production of a laminated product having a foam core between two substantially impermeable cover sheets one of which has longitudinally extending, transversely spaced inwardly directed recesses therein wherein a porous web is placed over the sheet having the recesses and a foamable liquid reaction mixture is poured over the web whereby only a part of the foamable reaction mixture passes through the web into the recesses.

REFERENCES:
patent: 2648619 (1953-08-01), Alderfer
patent: 2677496 (1954-05-01), Maynes
patent: 2797729 (1957-07-01), Runton
patent: 3007205 (1961-11-01), House
patent: 3200026 (1965-08-01), Brown
patent: 3251092 (1966-05-01), Printz
patent: 3257483 (1966-06-01), Eberle
patent: 3537929 (1970-11-01), Keith et al.
patent: 3666590 (1972-05-01), Susuki et al.
patent: 3741859 (1973-06-01), Wandel

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