Process for bonding lignocellulose-containing raw materials...

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

B - Operations, Transporting

27

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18/1010, 400/130

B27N 1/02 (2006.01) C08G 18/10 (2006.01) C08G 18/54 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01) C08L 97/02 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1217890

PROCESS FOR BONDING LIGNOCELLULOSE-CONTAINING RAW MATERIALS WITH A PREPOLYMER BASED ON A URETHANE- MODIFIED DIPHENYLMETHANE DIISOCYANATE MIXTURE Abstract of the Disclosure 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°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.

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