Back to results
US 4,059,613 AGranted
Fluorine-containing dicarbamate esters
AssigneeAsahi Denka Kogyo Kabushiki Kaisha
InventorsYasusi Nakamura, Masashi Umemura, Michimasa Yonekura
Life of this patent
Estimating the term…
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.
Claims10
A compound having the formula
- R.sub.f (CH.sub.2).sub.p O(RO).sub.m CONHR'NHCOO(C.sub.2 H.sub.4 O).sub.n H
- wherein R.sub.f is perfluoroalkyl having 4 to 14 carbon atoms, p is a number of from one to 10 and R.sub.f (CH.sub.2).sub.p - has from 6 to 16 carbon atoms;
- R is alkylene having from 2 to 4 carbon atoms;
- R' is alkylene, arylene or alkarylene having from 2 to 8 carbon atoms;
- m is a number of from one to 50;
- and n is a number of from one to 50.
3 more elements
Dependencies are inferred from the claim text.