Enhanced heat mirror films
US7215473B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2002 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/282
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat mirror film containing visible light-transmissive and infrared reflective film comprising a birefringent dielectric multilayer support that reflects at least 50% of light in a band at least 100 nm wide in a wavelength region of interest, a metal or metal alloy layer whose thickness is such that the film is visible light-transmissive and its reflection band is broadened, and a crosslinked polymeric layer has improved infrared reflecting properties. The film can be joined or laminated into glazing (especially non-planar vehicular safety glazing) with reduced likelihood that the metal or metal alloy layer will be damaged or distorted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.