The composition of the coating resistant to abrasion formed of the hydrolysate of a mixture of orthosilicate tetraethyl, of a silane and of a siloxane

摘要

A coating composition which results from hydrolyzing 35 to 70 weight per cent tetraethyl orthosilicate and 60 to 20 weight per cent of certain methyl or ethyl methoxy or ethoxy silanes is useful for providing abrasion resisting coatings for plastics after curing. Optionally, up to 20 weight per cent of a silane having a reactive polar site or, in the alternative, a small percentage of a surfactant may be used to provide a dyeable coated article.