Improved production of an energy-reflecting composite

Abstract

Disclosed is a method for the production of a visual light transmitting and infra-red reflecting composite including, adhered to one side of a transparent support, at least one dichroic filter (DF) which filter comprises at least one metal layer that is sandwiched in between two layers of dielectric metal oxide, dielectric compound or dielectric salt, wherein the layers of the filter are deposited sequentially onto the transparent support using sputter-deposition in at least one sputtering chamber, wherein the process comprises, in the sputtering chamber where at least one of the dielectric layers is sputtered, the introduction of at least one inert gas and water, and wherein the molar flow of the water that is introduced into the sputtering chamber is in the range of 1% to 30% relative to the total molar flow of inert gas that is introduced into the same sputtering chamber.

Dependencies are inferred from the claim text.