The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1980
Filed:
Jul. 28, 1978
Applicant:
Inventors:
Marcel De Boel, Fontaine l'Eveque, BE;
Pol Baudin, Chatelineau, BE;
Assignee:
BFG Glassgroup, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428334 ; 428332 ; 428335 ; 428336 ; 428411 ; 428426 ; 428427 ; 428428 ; 428432 ; 428437 ; 428438 ; 428913 ; 428920 ;
Abstract
A light-transmitting fire screening panel comprising at least one sheet of glass and at least one layer of intumescent material, the improvement which comprises utilizing in the layer a hydrated alkali metal silicate as intumescent material and one or more adjuvants selected from: urea, polyhydric alcohol (including glycerine, ethylene glycol and sorbitol), monosaccharide (including glucose), polysaccharide (including starch), sodium phosphate, sodium aluminate, aluminum phosphate, borax, boric acid and colloidal silica.