Pigments which reflect infrared radiation from fire
Abstract
Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer ({micro}m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 {micro}m or, for cool smoky fires, about 2 {micro}m to about 16 {micro}m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 {micro}m to about 2 {micro}m and thin leafing aluminum flake pigments. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 672633
- Patent Number(s):
- 5811180
- Application Number:
- PAN: 8-622,981
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 22 Sep 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; 57 HEALTH AND SAFETY; FIRE RESISTANCE; PAINTS; ADDITIVES; INFRARED RADIATION; REFLECTIVITY; FLAME PROPAGATION; MITIGATION; TITANIUM OXIDES; IRON OXIDES; ALUMINIUM
Citation Formats
Berdahl, P H. Pigments which reflect infrared radiation from fire. United States: N. p., 1998.
Web.
Berdahl, P H. Pigments which reflect infrared radiation from fire. United States.
Berdahl, P H. Tue .
"Pigments which reflect infrared radiation from fire". United States.
@article{osti_672633,
title = {Pigments which reflect infrared radiation from fire},
author = {Berdahl, P H},
abstractNote = {Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer ({micro}m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 {micro}m or, for cool smoky fires, about 2 {micro}m to about 16 {micro}m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 {micro}m to about 2 {micro}m and thin leafing aluminum flake pigments. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 1998},
month = {Tue Sep 22 00:00:00 EDT 1998}
}