Manufacture of overlayed product with phenol-formaldehyde barrie

Details Manufacture of overlayed product with phenol-formaldehyde barrie Manufacture of overlayed product with phenol-formaldehyde barrie

1975-10-08

1977-09-06

Whitby, Edward G.

Stock material or miscellaneous articles

Composite

Of polyamidoester

156 90, 156331, 156335, 260 67TN, 260838, 264109, 428326, 428526, 428530, B32B 3300

Patent

active

040469522

ABSTRACT:
Production of consolidated overlayed product comprising a core of particulate cellulosic material bound with a polyisocyanate binder and an overlay bound to the core through a phenolformaldehyde resin which forms a barrier inhibiting penetration of the polyisocyanate into the overlay.

REFERENCES:
patent: 2430479 (1947-11-01), Pratt et al.
patent: 3440189 (1969-04-01), Sharp
patent: 3666593 (1972-05-01), Lee
patent: 3821056 (1974-06-01), Reardon
patent: 3870665 (1975-03-01), Diehr

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