| 摘要 |
23221-4576 of the disclosure Urethanes made from aliphatic fluorinated alcohols, isocyanates and substituted aromatic compounds, a process for their preparation, and their use. Novel urethanes of the general formula (1), in which Rf denotes, for example, a C4-C20 perfluoroalkyl, R1 is H or C1-C4 alkyl, X is an integer from 1 to 4, Y is an integer from 0 to 10, m and n are integers from 1 to 2, the sum m + n being at most 3, and A is, for example, a phenylene or toluylene group are disclosed. The novel urethanes are synthesized from an aliphatic fluorinated alcohol, an isocyanate and a specific substituted phenol or aniline compound. They are prepared by reacting an aliphatic fluorinated alcohol with a di - or triisocyanate to form a fluorinated alcohol/isocyanate adduct and reacting this adduct with a certain substituted phenol or aniline to form the urethanes intended. The novel urethanes are preferably used for oleophobic and hydrophobic finishing of textiles and leather. |
