Patent ID: 6172131
Filing Date: 2001-01-09
Classification: A61K,C08F

Abstract:
Hydrolysis-stable and polymerizable acrylphosphonic acids of the general formula (I), stereoisomers thereof and mixtures of these ##STR21##where R.sup.1, R.sup.2, R.sup.3, X, Y and n, unless stated otherwise, independently of one another have the following meanings:R.sup.1 =hydrogen, C.sub.1 to C.sub.10 alkyl or C.sub.6 to C.sub.10 aryl,R.sup.2 =hydrogen, C.sub.1 to C.sub.5 alkyl or phenyl,R.sup.3 =C.sub.1 to C.sub.8 alkylene, phenylene or is absent,Y=oxygen, sulphur, C.sub.1 to C.sub.8 alkylene or is absent,n=1 or 2,and with the proviso that(a) for n=1X=hydrogen, C.sub.1 to C.sub.5 alkyl or C.sub.6 to C.sub.12 aryl, and(b) for n=2X=C.sub.1 to C.sub.10 alkylene, C.sub.6 to C.sub.10 arylene, C.sub.7 to C.sub.20 arylenalkylene or is absent,and in which the individual alkyl, aryl, alkylene, arylene, phenyl, phenylene and arylenalkylene radicals can bear one or more substituents.