Patent ID: 6204403
Filing Date: 2001-03-20
Classification: C07F

Abstract:
A method for preparing acrylamidoalkylalkoxysilanes comprising:reacting an aminoalkylalkoxysilane of the formula (RO).sub.x R.sub.3-x SiR.sup.1 NHR.sup.2 with an acrylate ester of the formula CR.sup.3.sub.2.dbd.CR.sup.3 CO.sub.2 R.sup.4 where each R is a lower alkyl group of one to ten carbon atoms, R.sup.1 is a linear, branched, cyclic, or substituted divalent hydrocarbon radical of one to twelve carbon atoms which may include heteroatoms, R.sup.2 is hydrogen, R, or a monovalent aromatic hydrocarbon radical of six to twelve carbon atoms, an aminoalkyl group or a silyl functionality, and x is 1, 2, or 3, R.sup.3 is H, R or a monovalent aromatic hydrocarbon radical of six to twelve carbon atoms wherein any two of three R.sup.3 's may form a ring, R.sup.4 is R or a monovalent aromatic hydrocarbon radical of six to twelve carbon atoms, each R, R.sup.1 and R.sup.3 may be the same or different from each other so long as at least one of the three R.sup.3 's in the acrylate ester is other than hydrogen, in the presence of an effective amount of an amidation catalyst and an effective amount of an inhibitor package at an elevated reaction temperature.