| abstract |
Linear crosslinkable polyurethane, it can at least aly have the diisocyanate of 2-30 carbon atom available from (a), (b) at least a aliphatic series or cycloaliphatic diol with 2-30 carbon atom, wherein at least one carboxyl is covalently bound to the carbochain of this glycol, and part or all of described carboxyl has been used the undersaturated C of ethylene seriesn 3 -Cn 8 Alcohol or with the undersaturated C of ethylene seriesn 3 -Cn 8 The ethylene oxidic ester esterification of carboxylic acid and (c) optional at least a aliphatic series or cycloaliphatic diol with 2-30 carbon atom, wherein at least one carboxyl is covalently bound to the carbochain of this glycol.This polyurethane is suitable for using separately or to use with the form of the potpourri of other reactive component, the heat and/or the photochemical crosslinking that are used for cross-linkable composition are made mechanograph, coating and particularly solder mask. |