NONAQUEOUS POLYISOCYANATE FORMULATION

摘要

Nonaqueous polyisocyanate formulation containing a) one or more aliphatic polyisocyanates having a mean NCO functionality of from 2.5 to 3.5 and b) an amount, which ensures that the polyisocyanate is dispersible, of a reaction product of a diisocyanate selected from the group consisting of tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylenediisocyanate,1,4-diisocyanatocyclohexane, 4,4'-di-(isocyanatocyclohexyl)-methane, diisocyanatotrimethylhexane, diisocyanatotetramethylhexane, 1-isocyanato-3,3,5-trimethyl-5-(isocyanato-methyl)-cyclohexane, tolylene 2,4- and 2,6-diiso-cyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate, 2,4'- and 4,4'-diisocyanatodi-phenylmethane and a mixture of two or more of these diisocyanates with a monohydric or polyhydric polyalkylene ether alcohol where the alkylene groups are of 2 to 4 carbon atoms and which contains a polyether chain having 8 or more ethylene oxide units, are prepared and are used in aqueous coating materials and in adhesive dispersions.