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Title: 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:
Publication Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672633
Patent Number(s):
US 5,811,180/A/
Application Number:
PAN: 8-622,981
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 400800; 570000; PA: EDB-98:120583; SN: 98002026823
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}
}