Lightweight, soundproofing, insulation and fireproofing...

C - Chemistry – Metallurgy – 04 – B

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C04B 14/46 (2006.01) C04B 28/26 (2006.01)

Patent

CA 1329984

LIGHTWEIGHT, SOUNDPROOFING, INSULATION AND FIREPROOFING MATERIAL AND METHOD Abstract A lightweight soundproofing, insulation and fire- proofing material and method is disclosed. A dry composi- tion is provided which includes 60-80% by weight of an inor- ganic lightweight nonflammable fibrous material, 16.67- 36.67% by weight of an organic lightweight normally-flam- mable fibrous material, and 3.33-10% by weight of a refract- ed clay material. The non-flammable fibrous material is pulled apart to provide a high temperature loose fiber ma- terial, the normally-flammable fibrous material is shredded, and the refracted clay material is embedded in the normally- flammable fibrous material after shredding to reduce the flammability thereof. Thereafter, the nonflammable fibrous material is mixed with the normally-flammable fibrous mater- ial to complete the dry composition. A liquid adhesive is provided which includes liquid sodium silicate having a ratio of silicon dioxide to sodium oxide that is greater than 3.27:1, the liquid sodium silicate in the form of a solution of about 50% water is mixed with water in a ratio of approximately 1:1, and a surfactant can be added to the liquid sodium silicate to act as a wetting agent for appli- cation and flexibility purposes. With these constituent components, the liquid adhesive is used with the dry compo- sition at the rate of approximately 55 gallons of liquid adhesive for each 300 lbs. of dry composition.

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