Easily preparable, reduced-VOC, environmentally friendly (meth)acrylamido-functional siloxane systems, process for preparation thereof and use

摘要

The invention relates to a composition and to a process for producing the composition comprising (meth)acrylamido-functional siloxanes, and to the use thereof.

主权项

1. A composition, comprising an acrylamido-functional siloxane obtained by a process comprising:
a) reacting a component A which is an aininoalkyl-functionalized silicon compound selected from the group consisting of (i), (ii) and (iii) (i) an aminoalkyl-functional alkoxysilane or a mixture of aminoalkyl-functional alkoxysilanes, each in the presence of a defined amount of water, (ii) a hydrolysis or condensation product of at least one aminoalkyl-functional alkoxysilane, and (iii) a mixture comprising an aminoalkyl-functional alkoxysilane and a hydrolysis and/or condensation product of at least one aminoalkyl-functional alkoxysilane,with a component B which is an acrylic anhydride, optionally in the presence of a diluent; and optionally
b) removing a portion of the diluent and/or an alcohol of hydrolysis, wherein: the aminoalkyl-functional alkoxysilane is represented by formula:
(R1O)3Si(B); B independently represents a group of formula (II) or independently represents a group of formula(III):
—(CH2)c—[(NH)(CH2)d]e[(NH)(CH2)f]gNH(2-h)R3h  (II),—(CH2)j—NH2-p(CH2—CH2—NH2)p  (III); each R1 is independently a linear, branched or cyclic alkyl group having 1 to 8 carbon atoms; each R2 is independently a linear, branched or cyclic alkyl group having 1 to 8 carbon atoms; each R3 is independently a linear, branched or cyclic alkyl, aryl or alkylaryl group having 1 to 8 carbon atoms; c is independently selected from the group consisting of 1, 2, 3, 4, 5 and 6; d is independently selected from the group consisting of 1, 2, 3, 4, 5 and 6; e is independently selected from the group consisting of 0, 1, 2, 3, 4, 5 and 6; f is independently selected from the group consisting of 1, 2, 3, 4, 5 and 6; g is independently selected from the group consisting of 0, 1, 2, 3, 4, 5 and 6; h is independently 0 or 1; j represents 1, 2 or 3; p represents 0, 1 or 2; the acrylic anhydride is represented by formula (IV):
(CHR5=CR4CO)2O  (IV); each R4 is independently a hydrogen atom or a methyl group; and each R5 is independently a hydrogen atom or a methyl group.