Patent ID: 6160166
Filing Date: 2000-12-12
Classification: C07F

Abstract:
A phosphonic acid agent of the following formula: ##STR13## wherein P is a phosphonic acid or a phosphonic acid substituted with one or more alkali metals;Y is --OCO--, --NR.sup.1 CO--, or --CON(R.sup.1)R.sup.2 --;R.sup.1 is H, CH.sub.2 CO.sub.2 H, or substituted or unsubstituted alkyl;R.sup.2 is substituted or unsubstituted alkylene;m.sub.1 is an integer from 2 to 4;n.sub.1 is 1, or 2;R.sup.6 is substituted or unsubstituted alkyl, or NCOR.sup.7 ; andR.sup.7 is aryl, substituted aryl, or nitro substituted aryl.