Patent ID: 9353136
Filing Date: 2016-05-31
CPC Classification: C03C,C07F,C08G,C08L

Claim Text:
1. A process for preparing an acrylamidoalkyl-functional silane, the process comprising: reacting an aminoalkyl-functional alkoxysilane of formula I or a mixture comprising at least two silanes of the formula I with an acrylic anhydride of formula IV to obtain an intermediate reaction product: optionally partially removing an acrylic acid and/or reaction products of the acrylic acid from the intermediate reaction product, to form the acrylamidoalkyl-functional silane, wherein: R R R a is independently 0 or 1; b is independently 0, 1 or 2; and group B is independently a group of formula II or a group of formula III wherein: R c is independently selected from 1, 2, 3, 4, 5 and 6; d is independently selected from 1, 2, 3, 4, 5 and 6; e is independently selected from 0, 1, 2, 3, 4, 5 and 6; f is independently selected from 1, 2, 3, 4, 5 and 6; g is independently selected from 0, 1, 2, 3, 4, 5 and 6; h is independently 0 or 1; j=1, 2 or 3 and p=0, 1 or 2.