Abstract: The invention relates to a reflective composite material (V) having a carrier (1) consisting of aluminum, having an interlayer (2) which is present on a side (A) on the carrier (1) and is composed of a varnish, and having an optically active multilayer system (3) which has been applied atop the interlayer (2) and consists of at least three layers, wherein the upper layers (4, 5) are dielectric and/or oxidic layers, and the lowermost layer (6) is a metallic layer which consists of silver and forms a reflection layer (6). To increase the aging resistance, it is proposed that the interlayer (2) comprise an organic layer-forming varnish or be formed entirely from such a varnish that has been cured in an ionic photopolymerization and crosslinking or that has been cured after UV irradiation by free-radical photopolymerization and crosslinking.

Abstract: The invention relates to a reflective composite material (V) with a substrate (1) consisting of aluminum, with an intermediate layer (2) of anodic oxidized substrate material located on one side (A) of the substrate (1), and with an optically active multi-layer system (3) applied above the intermediate layer (2), wherein the multi-layer system consists of at least three layers, and wherein the upper layers (4, 5) are dielectric and/or oxidic layers, and the bottom layer (6) is a metallic layer consisting of silver which forms a reflective layer (6). To increase the ageing resistance the invention proposes that a diffusion-inhibiting barrier layer (8) is disposed above the intermediate layer (2) and below the reflective layer (6), wherein the reflective layer (6) is bonded to the barrier layer (8) by an adhesion-promoting layer (9).

Abstract: The invention relates to a reflective composite material (V) having a carrier (1) consisting of aluminum, having an interlayer (2) which is present on a side (A) on the carrier (1) and is composed of a varnish, and having an optically active multilayer system (3) which has been applied atop the interlayer (2) and consists of at least three layers, wherein the upper layers (4, 5) are dielectric and/or oxidic layers, and the lowermost layer (6) is a metallic layer which consists of silver and forms a reflection layer (6). To increase the aging resistance, it is proposed that the interlayer (2) comprise an organic layer-forming varnish or be formed entirely from such a varnish that has been cured in an ionic photopolymerization and crosslinking or that has been cured after UV irradiation by free-radical photopolymerization and crosslinking.

Abstract: A composite material including a carrier g of aluminum, an optically effective multi-layer system applied to a side (A) of the carrier. The system having at least 2 dielectric and/or oxidic layers, namely an upper layer and a lower, light-absorbing layer. The lower, light-absorbing layer contains a titanium-aluminum mixed oxide TiAlqOx and/or a titanium-aluminum makes nitride TiAlqNy and/or a titanium-aluminum mixed oxynitride TiAlqOxNy, while the upper layer is an oxidic layer made of titanium, silicon or tin of the chemical composition TiOz, SiOw, or SnOv, where the indices q, v, w, y and z each denote a stoichiometric or nonstoichiometric ratio.