SOLAR MIRRORS AND METHODS OF MAKING SOLAR MIRRORS HAVING IMPROVED PROPERTIES

摘要

A solar reflective mirror includes a parting film between solar reflecting sublayers to improve optics and stability of the solar mirror. The coating stack of the solar reflector mirror is encapsulated to increase the useable life of the solar mirror, and to eliminate the need for a permanent protection overcoat. Omission of the PPO film which is electrically non-conductive makes the coating stack electrically conductive eliminating the need for a two layer encapsulant when the encapsulant is e-coated.;Another feature of the invention is applying the base coat of the encapsulant over the marginal edges of the PPO film leaving a center section without coverage and adding the top coating of the encapsulant over the base coat and the uncoated area.

主权项

1. An article for reflecting solar energy comprising:
a substrate having a first surface and an opposite second surface, and a solar reflective coating comprising:
a first metal solar reflecting film hereinafter also referred to as the “first metal film”, the first metal film having a first surface and an opposite second surface;a second metal solar reflecting film herein after also referred to as the “second metal film”, the second metal film having a first surface and an opposite second surface;a parting layer having a first surface and an opposite second surface, wherein the first surface of the parting layer is over the second surface of the first metal film and the first surface of the second metal film is over the second surface of the parting film, wherein the first surface of the first metal film is over and attached to the second surface of the substrate.