Abstract: The invention relates to a process for producing functional coatings with organofunctional silanes, a metal compound and difficultly volatile oxides, in which

Abstract: The invention relates to a method of reducing lead release from lead crys glass by applying a coating manufactured by application and hardening of a coating material containing a hydrolytic condensation product comprising a cross-linkable organofunctional hydrosilicon, a metal compound and an organic prepolymer cross-linkable with this hydrolytic condensate.

Abstract: Reflectors, for example, for lamps used for technical lighting purposes, having a surface which is resistant to mechanical and chemical attack and has high total reflectivity. The body (10) of the reflector, which is, for example, a rolled aluminum product such as a foil, a strip of a sheet, has a surface layer in the form of a layer system containing (a) a pretreatment layer (11), onto which is deposited (b) a functional layer (12) with silanes, having organo-functional groups, of a metal compound, and onto which is deposited (c) a metal-containing reflective layer (13). Layer (a) is deposited on the reflector body and increases the strength of bonding to the above lying layers (a) and (b). Layer (b) effects a flattening and increase in the mechanical strength of the above lying layer (c). The pretreatment layer can be a layer produced by anodic oxidation. The functional layer (b) can be a sol-gel layer.

Abstract: Method for coating the surface of polycarbonate moulded parts, with a polycarbonate based on a diphenol of formula (Ia) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, X and m are defined herein, and a material (b), which has been obtained by hydrolytic polycondensation of an aluminum compound of an organofunctional silane and an oxide component.