Low temperature flameless aerosol producing fire extinguishing composition and production method thereof

• US 8,147,706 B2
• Filed: 05/10/2010
• Issued: 04/03/2012
• Est. Priority Date: 05/25/2009
• Status: Active Grant

• Current Assignee: Atoz Design Labs Co., Limited
• Original Assignee: Atoz Design Labs Co., Limited
• Inventors: Zeliff, Zachary Joseph, Loveless, Liana Vladimirovna, Kutsel, Vladimir Victorovich, Doronichev, Aleksander Ivanovich
• Primary Examiner(s): ANTHONY, JOSEPH DAVID
• Application Number:
  US12/777,063
• Publication Number:
  US 20100294975A1
• Time in Patent Office: 694 Days
• Field of Search: 252/4, 252/5, 252/6, 252/7, 149/61, 149/62, 149/63, 149/64, 149/19.1, 149/19.7, 149/19.8
• US Class Current: 252/4
• CPC Class Codes: A62D 1/06 containing gas-producing, chemically-reactive components

Abstract

A low temperature flameless aerosol producing fire extinguishing composition containing potassium nitrate and binding fuel is characterized by using cellulose-fibrous mass as a binding fuel, with potassium nitrate at 30-70% and fibrous cellulose mass making up the remainder. A production method for the composition is further provided.

Claims

1. A low temperature flameless aerosol producing fire-extinguishing composition comprising:

water-soluble potassium nitrate; and

a binding fuel comprising a cellulose-fibrous mass;

wherein the composition is formed by soaking the cellulose-fibrous mass in a solution of water and the potassium nitrate and then drying the composition to 1-2% moisture content; and

wherein the potassium nitrate and cellulose-fibrous mass are present in the following mass percentage;

potassium nitrate from 30-70%,

cellulose-fibrous mass remainder.

2. The composition of claim 1, wherein the cellulose-fibrous mass comprises paper.

3. The composition of claim 1, wherein the cellulose-fibrous mass comprises cotton cloth.

4. A production method for the low temperature flameless aerosol producing composition of claim 1, comprising the steps of:

soaking the cellulose fibrous mass in a hot saturated water solution of potassium nitrate;

removal of excess water to 40-60% moisture content; and

drying to 1-2% moisture content.

5. The production method of claim 4, further comprising the step of forming the composition to a product having a desired size and shape.

6. The production method of claim 5, wherein the forming step comprises winding sheets previously dried by forced hot air to 1-2% moisture content into rolls of required diameter.

7. The production method of claim 5, wherein the forming step comprises form pressing, using a hydraulic press with a matrix heated to 90-95°

C. and applying 30-150 Mpa pressure, followed by the step of drying the product to 1-2% moisture content.

8. The production method of claim 5, wherein the forming step comprises using smooth or ribbed rolls heated to 80-100°

C. to gather and dry to 1-2% moisture content a sock that is periodically cut, removed from the tool and then wound into rolls of required diameter.

9. The production method of claim 5 further comprising the step of treating the surface of the product with a hydrophobing agent.

10. The production method of claim 9, wherein the hydrophobing agent comprises nitrocellulose or epoxy lacquer.

11. The production method of claim 9, wherein the hydrophobing agent comprises dry film lacquer with a thickness of 50-80 micron.

12. A low temperature flameless aerosol producing fire-extinguishing composition comprising:

water-soluble potassium nitrate;

water-soluble copper and/or iron (III) nitrates as combustion catalysts; and

a binding fuel comprising a cellulose-fibrous mass;

wherein the composition is formed by soaking the cellulose-fibrous mass in a solution of water, the potassium nitrate and copper and/or iron (III) nitrates, and then drying the composition 1-2% moisture content; and

wherein the potassium nitrate and cellulose-fibrous mass are present in the following mass percentage;

potassium nitrate from 30-70%,

water soluble copper and/or iron (III) nitrates and cellulose-fibrous mass remainder.

13. The composition of claim 12, wherein the cellulose-fibrous mass comprises paper.

14. The composition of claim 12, wherein the cellulose-fibrous mass comprises cotton cloth.