Reflective porcelain enamel coating compositions
US6004894A · kind A · utility
16Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C8/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a porcelain enamel coating composition for use in forming a coating composition upon a metal substrate having an infrared reflectivity of at least 50% at 2.5 .mu.-microns measured with a Perkin Elmer Lambda 19 UV/VIS/NIR spectrometer with a labsphere RSA-PE 19 reflectance spectroscopy accessory. The coating composition comprises a glass component and a separate and distinct addition of cerium oxide. Preferably, the coating composition comprises from about 0.20% to about 3.0% by weight of the cerium oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.