| 摘要 |
Lubricating agent containing fluorinated urethanes Lubricants comprising fluorinated urethanes, prepared by reacting a) compounds of the formula 1 Rf-X-A-H (1) in which Rf denotes a perfluoroalkyl group having from 1 to 20, preferably from 4 to 16, carbon atoms, X denotes C2-C4 alkylene, -CON(R<1>)-Q- or -SO2N(R<1>)-Q-, R<1 >denotes hydrogen or C1-C4 alkyl, Q denotes C2-C4 alkylene, and A denotes -O-, -S- or -N(R<1>)-, or mixtures of compounds of the formula 1 with compounds of the formula 2 R-X-A-H (2) in which R denotes C1-C20 alkyl, preferably C4-C16 alkyl, and X and A are as defined for the formula (1), b) triisocyanates, and c) compounds having at least two active hydrogen atoms.
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