Epoxy Silane

The invention of the epoxy silane provides shelf stable compositions comprised of epoxysilane, a water dispersible or emulsifiable organic polymer which contains a functional group with an active hydrogen, together with a catalyst for curing the composition.. The corresponding method of the present invention for the preparation of a shelf stable composition comprises combining an epoxysilane compound in water with the organic polymer which contains a functional group with an active hydrogen, and adding at any point a catalyst for curing the composition..

One embodiment of The invention of the epoxy silane provides shelf stable compositions comprised of water-insoluble or slightly soluble epoxysilanes, emulsifier and a water dispersible or emulsifiable organic polymer which contains a functional group with an active hydrogen, together with a catalyst for curing the composition.. The method of the present invention for the preparation of such a shelf stable composition comprises: (a) dispersing a water insoluble or slightly soluble epoxysilane compound in an aqueous solution with emulsifier to yield an aqueous emulsion, and (b) adding the silane emulsion to a water dispersed or emulsified organic polymer which contains a functional group with an active hydrogen, and adding at any point a catalyst for curing the composition..

Another aspect of the invention of the epoxy silane is to provide an article coated and cured with any of the aforementioned reactive, aqueous compositions.

The compositions of the invention of the epoxy silane are stable for at least about six (6) months. Moreover, improved properties such as solvent resistance, adhesion, smoothness, hardness and mar resistance are achieved with compositions of the present invention.