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US 3,952,075 AGranted
Fluorine-containing compounds
AssigneeAsahi Denka Kogyo Kabushiki Kaisha
InventorsYasusi Nakamura, Masashi Umemura, Michimasa Yonekura
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Abstract
The fluorine-containing organic compound has the general formula: R.sub.f (CH.sub.2).sub.p O(RO).sub.m (CONHR'NHCOO).sub.q (C.sub.2 H.sub.4 O).sub.n X, wherein R.sub.f is a perfluoro alkyl group; R is an alkylene group; R' is a hydrocarbylene group; X is H, --PO.sub.3 H.sub.2 or --SO.sub.3 H; m and n are one of 0 and 1 to 50; p is one of 1 to 10; and q is 0 or 1, And is suited for a surface active agent having a high level of the surface activating property at a practical concentration.
Claims3
A compound having the formula:
- R.sub.f (CH.sub.2).sub.p O(C.sub.3 H.sub.6 O).sub.m (C.sub.2 H.sub.4 O).sub.n X'
- wherein R.sub.f is a perfluoroalkyl group having from 4 to 14 carbon atoms, p is a number of from 1 to 10 and R.sub.f (CH.sub.2).sub.p has from 6 to 16 carbon atoms;
- X' is a member selected from the group consisting of --PO.sub.3 H.sub.2 and its alkali metal, ammonium and amine salts;
- m is a number selected from the group consisting of 0 and from 1 to 50;
- n is a number selected from the group consisting of 0 and from 1 to 50, with the proviso that when m is 0, n is a number of from 1 to 50.
2 more elements
Dependencies are inferred from the claim text.