Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1987-08-03
1989-03-07
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
252606, 252608, 252609, 428920, 428921, 523179, 524416, 524436, 524493, 524494, C08K 338
Patent
active
048107417
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to fire-resistant material and noncombustible material for being applied on interior building materials by spraying or brushing and the processes for their production.
BACKGROUND ART
Various fire-proof, heat-insulating or adiabatic materials are conventionally used in the construction of building. Some examples are stone, plaster board, asbestos and fiberglass. There are also many conventional treatments used for the existing buildings to make combustible materials fire-proof or fire-resistant.
However, installing or replacing these materials has many disadvantages. Replacement is often costly because of materials and labor and sometimes it requires a structural change or even destruction of some parts of the building. Treatments to make combustible materials fire-proof or fire-resistant are effective to an extent, but cannot make entire existing building interior noncombustible. Moreover, fire causes many of these treated materials to produce toxic gases, endangering human lives.
DISCLOSURE OF INVENTION
It is the object of the present invention to produce fire-resistant material and noncombustible material which can be used to treat materials without destroying or removing parts of the existing building and also do not produce toxic gases when a fire breaks out, avoiding the problems of currently used materials.
In the present invention, a fire-resistant material is made by mixing the following: agent A, a solution of calcium chloride and boric acid diluted in water; agent B, a mixture of silicone resin, sodium silicate and polyvinyl acetate Resin; and agent C, a mixture of Ammonium mono Phosphate and silica gel.
Agent A should be made by mixing the calcium chloride and Boric Acid at a ratio of 1:1 and then diluting this mixture in 1 to 2 times as much water. This solution acts to prevent the ignition of a treated material, and also prevents cracks on the surface of the treated material as the fireproof material layer dries after being sprayed on.
Agent B should be made by mixing 35% to 45% of silicone resin, 35% to 45% of sodium silicate, and 10% to 30% of polyvinyl acetate Resin and then reducing this mixture to a powder of 200 to 450 mesh. This mixture adds to the adhesiveness of the present invention and produces an insulating foam layer when exposed to high temperatures.
Agent C is made by mixing Ammonium mono Phosphate and silica gel, melting it by applying heat and reducing it to a powder. It promotes the heat-resisting property of the material according to the present invention and also neutralizes any toxic gases produced by fire. It should be made by mixing 50% to 70% of Ammonium mono Phosphate with 30%-50% of silica gel, reducing it to a powder of 250 to 450 mesh and heating in the range of 800.degree. C. to 1000.degree. C.
The fire-resistant material in the present invention can be produced through the following method; step one, agent A is prepared by diluting a mixture of calcium chloride and boric acid in water; step two, agent B is made by mixing silicone resin, sodium silicate and polyvinyl acetate Resin and reducing the resultant mixture to a powder; step three, agent C is made by mixing Ammonium mono Phosphate and silica gel, heating this mixture and then reducing it to a powder; the final step involves the mixing of agents A, B and C.
In this case, agents A and B may be mixed at room temperature, then mixed with agent C, also at room temperature. Agents A and B should be mixed in a ratio of 1:1 to 2:1. The mixture of agents A and B should be mixed with agent C in a ratio of 2:1 to 3:1. The resulting fire-resistant material creates an insulating foam layer when it is treated on the material and becomes transparent when it is deposited.
The noncombustible material for interior building materials of this invention can be produced by mixing the above-described fire-resistant material with powder D, produced by mixing boric acid solution and paper powder, reduced and dried; and earth/rock powder, made by grinding loess, sand and waste coa
REFERENCES:
patent: 2078197 (1937-04-01), Hooker et al.
patent: 2809949 (1957-10-01), Orth
patent: 3249534 (1966-05-01), Ware
patent: 3510446 (1970-05-01), Junger et al.
patent: 4386119 (1983-05-01), Draganov
patent: 4521333 (1985-06-01), Graham et al.
Bhatnagar, V. M., Fire Retardant Formulations Handbook-vol. 1, p. 198 (1972).
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