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US 4,879,320 AGranted
Intumescent fire-retardant coating material
OwnerOtis H. Hastingsinventor
Life of this patent
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Abstract
A fire-retardant coating material includes a fluid intumescent material and refractory fibers of various sizes dispersed or suspended therein for particular applications. The fluid intumescent material includes a foaming agent, a blowing agent gas source, a carbonific or charring agent, a film-forming binder, a solvent and, in some cases, a pigment or filler. The refractory fibers consist of aluminum oxide, silicon dioxide, and one or more other metal oxides.
Claims46
A fire-retardant coating material, comprising:
- a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent;
- b) a refractory fibrous material dispersed in said intumescent material;
- c) said refractory fibrous material consisting of aluminum oxide (Al.sub.2 O.sub.3) in the range of 40% to 55% by weight, silicon dioxide (SiO.sub.2) in the range of 40% to 55% by weight, and one or more of the compounds selected from the group consisting of ferric oxide (Fe.sub.2 O.sub.3), titanium dioxide (TiO.sub.2), potassium oxide (KO.sub.2), sodium oxide (Na.sub.2 O), and zirconium oxide (ZrO.sub.2), said compounds being in the range of 0.1% to 5.0% by weight;
- d) said refractory fibrous material having at least short fibers with a bulk length of 1/32" to 1";
- e) said fire-retardant coating material for coating housing and building frames and the like to render same highly fire resistant.
2 more elements
A fire-retardant coating material, comprising:
- a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent;
- b) a refractory fibrous material dispersed in said intumescent material;
- c) said refractory fibrous material consisting of aluminum oxide (Al.sub.2 O.sub.3) in the range of 40% to 55% by weight, silicon dioxide (SiO.sub.2) in the range of 40% to 55% by weight, and one or more of the compounds selected from the group consisting of ferric oxide (Fe.sub.2 O.sub.3), titanium dioxide (TiO.sub.2), potassium oxide (KO.sub.2), sodium oxide (Na.sub.2 O), and zirconium oxide (ZrO.sub.2), said compounds being in the range of 0.1% to 5.0% by weight;
- d) said refractory fibrous material having at least long fibers with a bulk length of at least 1";
- e) said fire-retardant coating material having particular application for coating industrial and commercial structures and the like to render same highly fire resistant.
2 more elements
A fire-retardant coating material, comprising:
- a) a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent;
- b) a refractory fibrous material dispersed in said intumescent material;
- c) said refractory fibrous material consisting of aluminum oxide (Al.sub.2 O.sub.3) in the range of 40% to 55% by weight, silicon dioxide (SiO.sub.2) in the range of 40% to 55% by weight, and one or more of the compounds selected from the group consisting of ferric oxide (Fe.sub.2 O.sub.3), titanium dioxide (TiO.sub.2), potassium oxide (KO.sub.2), sodium oxide (Na.sub.2 O), and zirconium oxide (ZrO.sub.2), said compounds being in the range of 0.1% to 5.0% by weight;
- d) said refractory fibrous material having at least milled fibers with a bulk length of 2 to 35 microns;
- e) said fire-retardant coating material for coating interior finished surfaces of homes, buildings, vehicles, elevators, and the like, and to fabrics, to render same highly fire resistant.
2 more elements
Dependencies are inferred from the claim text.