Process for bonding lignocellulose-containing raw materials with

Details Process for bonding lignocellulose-containing raw materials with Process for bonding lignocellulose-containing raw materials with

1983-04-27

1985-10-08

Thibodeau, Paul J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

156 622, 1563314, 428326, 4284251, 428528, 428529, B32B 516, B32B 2108

Patent

active

045460396

ABSTRACT:
A process for bonding lignocellulose raw materials using an isocyanate group-containing urethane-modified diphenylmethane diisocyanate mixture having a viscosity of 120 to 1000 mPas at 25.degree. C. and an isocyanate content of 15 to 33.6 percent by weight which is obtained by reacting a diphenylmethane diisocyanate mixture containing 10 to 75 percent by weight of 2,4'-diphenylmethane diisocyanate with 0.05 to 0.5 hydroxyl equivalents of a polyol per equivalent isocyanate group.

REFERENCES:
patent: 3919017 (1975-11-01), Shoemaker
patent: 3930110 (1975-12-01), Shoemaker
patent: 3990928 (1976-11-01), Schmidt-Hellerau
patent: 4279788 (1981-04-01), Lambuth
Handbook of Adhesives, Skiest, Irving, 1973, pp. 333-342, p. 304, (1st paragraph).
Billmeyer, Jr., Fred; Textbook of Polymer Science, p. 345.
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 23, Urethanes.

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