Wacker Chemicalcorporation

Other

Wacker Chemie Ag

Timothy McCormack

Daniel Calimente

Richard Courtemanche

Organopolysiloxanes bearing regularly spaced pendent carboxylic acid groups or salts thereof have a block polymer structure and are derived by the double half-esterification of a dianhydride and a silanol- or carbinol-functional organopolysiloxane or sulfur analog thereof. The products can form stable aqueous dispersions without the need for a surfactant.

Carboxylic acid functional siloxanes of defined structure

Organopolysiloxanes having a greater degree of defined reactivity through epoxy, isocyanate, anhydride, amino, carboxy, and (meth)acrylate groups are prepared by cohydrolytic condensation of reactive group-containing precursors and other condensable precursors in amounts such that the reactive organopolysiloxanes product contains on average more than two reactive groups, less than 20% by weight of alkoxy groups, and a proportion of non-reactive optionally substituted hydrocarbon groups such that the ratio of non-reactive hydrocarbon groups to Si atoms is greater than 1.

Alkoxy group-containing silicones with reactive functional groups of defined reactivity

Aqueous emulsions of epoxy- and organo-substituted, branched organopolysiloxanes are prepared by emulsifying the latter in water with the aid of a dispersing agent. The emulsions are storage stable and are useful in multi-component coating, adhesive, and binder systems.

Aqueous epoxy and organo-substituted branched organopolysiloxane emulsions

A support hook for supporting a plastic bag inside a waste container comprises two side walls disposed in side by side relation and joined by an intermediate wall which extends therebetween. Three arms project laterally from one side wall and a hook projects laterally from the other side wall.

Growing community of inventors

Ypsilanti, MI, United States of America

Timothy McCormack