Patent ID: 6096730
Filing Date: 2000-08-01
Classification: C07F

Abstract:
A phosphonic acid agent having the formula:(P--Y.sub.n1).sub.m1 --Q.sup.1 --K--Q.sup.2 --(Y.sub.n2 --P).sub.m2wherein:P is a phosphonic group or a phosphonic salt;Y is --OCO--, or --NR.sup.1 CO--;R.sup.1 is H, CH.sub.2 CO.sub.2 H, or substituted or unsubstituted alkyl;Q.sup.1 and Q.sup.2 are substituted or unsubstituted aryl groups;K is NHCONH or NHCSNH;n1 and n2 are 1 or n1 is 1 and n2 is 0; andm1 and m2 are independently an integer from 1 to 4.