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 (.mu.m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 .mu.m or, for cool smoky fires, about 2 .mu.m to about 16 .mu.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 .mu.m to about 2 .mu.m and thin leafing aluminum flake pigments.
- Inventors:
-
- Oakland, CA
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- OSTI Identifier:
- 871856
- Patent Number(s):
- 5811180
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- pigments; reflect; infrared; radiation; fire; conventional; paints; transmit; absorb; intense; emitted; causing; contribute; spread; comprises; retardant; paint; additive; reflects; thermal; 20; micrometer; wavelength; range; spectral; ranges; control; typically; cool; smoky; fires; 16; improved; inventive; coatings; adverse; electromagnetic; energy; slow; specific; reflective; titanium; dioxide; rutile; iron; oxide; diameters; leafing; aluminum; flake; spectral range; wavelength range; infrared radiation; iron oxide; electromagnetic energy; titanium dioxide; radiation emitted; magnetic energy; reflect infrared; intense infrared; reflective pigment; fire retardant; /428/
Citation Formats
Berdahl, Paul H. Pigments which reflect infrared radiation from fire. United States: N. p., 1998.
Web.
Berdahl, Paul H. Pigments which reflect infrared radiation from fire. United States.
Berdahl, Paul H. Thu .
"Pigments which reflect infrared radiation from fire". United States. https://www.osti.gov/servlets/purl/871856.
@article{osti_871856,
title = {Pigments which reflect infrared radiation from fire},
author = {Berdahl, Paul 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 (.mu.m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 .mu.m or, for cool smoky fires, about 2 .mu.m to about 16 .mu.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 .mu.m to about 2 .mu.m and thin leafing aluminum flake pigments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}