Patent ID: 6416872
Filing Date: 2002-07-09
Classification: B32B,C03C,G02B

Abstract:
A heat reflective composite comprising in series:(a) a first substrate having an index of refraction; and (b) a heat reflective stack disposed upon the first substrate, the heat reflective stack comprising: (1) a first interference layer; (2) an infrared reflecting metal layer deposited onto the first interference layer; (3) a second interference layer; and (4) a first non-infrared reflective layer deposited onto the second interference layer, the first non-infrared reflective layer being composed of a material selected from the group of materials consisting of (i) metals having an index of refraction greater than about 1.0 and an extinction coefficient greater than about 2.0 and (ii) non-metals having an index of refraction greater than about 0.5 and an extinction coefficient greater than about 0.5.