Back to results
US 4,360,474 AGranted
Derivatives of polyphosphoric acid partial esters
AssigneeThe Dow Chemical Company
InventorsThomas P. Brady, Horst G. Langer
Life of this patent
Estimating the term…
Abstract
Derivatives of polyphosphoric acid partial esters of the formula ##STR1## wherein R is the remnant of a (poly)glycol monoether, phenol, or alkanol provided that in at least one occurrence R is the remnant of a (poly)glycol monoether, and M is a positive counterion of valence n are disclosed.
Claims10
A compound of the formula ##STR5## wherein R is each occurrence a remnant formed by removal of a hydroxyl from a monohydroxyl compound selected from:
- (a) a (poly)glycol monoether of the formula ##STR6## wherein R.sub.1 is hydrogen, methyl or halomethyl;
- R.sub.2 is C.sub.1-6 alkyl or haloalkyl, phenyl, halophenyl or methylphenyl;
- and n is an integer from 1 to 4;
- (b) a phenol or halophenol;
- and
- (c) a C.sub.1-20 aliphatic or halogenated aliphatic monohydroxyl compound;
- provided that in at least one occurrence R is a remnant of (a);
- M is independently each occurrence an ammonium or substituted ammonium ion or a metal ion having valence n;
- m is an integer from zero to three;
- y is an integer equal to or greater than zero;
- and q, x and z are all integers greater than or equal to one selected such that (z.multidot.n)+y=x(m+4-q) and q.ltoreq.m+3.
8 more elements
Dependencies are inferred from the claim text.