Wax dispersions

Details Wax dispersions Wax dispersions

C - Chemistry, Metallurgy

08

L

154/100, 400/111

C08L 91/06 (2006.01) C08G 18/70 (2006.01) C08K 5/16 (2006.01) C08L 97/02 (2006.01) C09J 175/04 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1171193

ABSTRACT An organic polyisocyanate composition contains from 99 to 60 parts by weight of a liquid organic polyisocyanate and from 1 to 40 parts of a 90:10 to 10:90 mixture of a wax and a liquid ester having a molecular weight of at least 250, for example an alkyl ester of an aliphatic carboxylic acid derived from an alkyl alcohol containing from 3 to 30 carbon atoms and a saturated or unsaturated fatty acid containing from 10 to 25 carbon atoms. The composition is useful for the manufacture of sheets or moulded bodies by the hot-pressing of a lignocellulosic material and promoted release of the material from the press. The composition is preferably applied in the form of an aqueous emulsion.

395381

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