C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/06 (2006.01) C09D 5/18 (2006.01) C09K 21/14 (2006.01)
Patent
CA 2049031
A fire-retardant coating material is provided herein for various uses, e.g. for coating housing and building frames to render them highly fire resistant, or for coating commercial structures to tender them highly fire resistant, or for coating interior finished surfaces of homes, buildings, vehicles, or elevators, and to fabrics to render them highly fire resistant. Such composition includes a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent, and a refractory fibrous material dispersed in the intumescent material. Such refractory fibrous material may have short fibres with a bulk length of 1/32" to 1", and/or long fibres with a bulk length of at least 1", and/or milled fibres with a bulk length of 2 to 35 microns. The refractory fibrous material consists of aluminum oxide (Al2O3) in the range of 40% to 55% by weight, silicon dioxide (SiO2) in the range of 40% to 55% by weight, and at least one compound which is either ferric oxide (Fe2O3), titanium dioxide (TiO2), potassium oxide (KO2), sodium oxide (Na2O), or zirconium oxide (ZrO2), the amount of such compounds being in the range of 0.1 % to 5.0 % by weight.
Borden Ladner Gervais Llp
No Fire Engineering Inc.
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