18.
    发明专利
    未知

    公开(公告)号:DE1946955A1

    公开(公告)日:1971-03-25

    申请号:DE1946955

    申请日:1969-09-17

    Applicant: HOECHST AG

    Abstract: 1321658 Oxyalkylated fluoroethanes FARBWERKE HOECHST AG 17 Sept 1970 [17 Sept 1969] 44430/70 Heading C2C [Also in Divisions C3 and D1] Novel compounds of the formula wherein R f represents a C 3-12 perfluoroalkyl group, a is 1 or 2, and n is a number of from 4 to 70, are prepared by reacting a compound of the formula with a polyethylene glycol HO-(CH 2 CH 2 O) n -H at a temperature of from 70 to 120‹C. In examples a compound obtained by reacting 1,1 -dihydro-perfluoro-octanol-(1) with toluene diisocyanate is further reacted with polyethylene glycols having molecular weights of 200 and 400. The above compounds may be used to emulsify water-insoluble fluorine containing compounds and also to impart oil- and water-repellency and soil release properties to textiles.

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