Back to results
US 2025/0375643 A1Published application
Fire retardant concentrate compositions containing a carboxylic acid and one or more corrosion inhibitors
AssigneePerimeter Solutions LP
InventorsMelissa KIM, Marcela MUNOZ, Jeremiah MACASAET
Life of this patent
Estimating the term…
Abstract
The present invention generally relates to fire retardant compositions including one or more carboxylic acids and/or salts thereof, for example, one or more alkali metal salts of a carboxylic acid. In particular, the present invention relates to particulate fire retardant concentrate compositions (e.g., powder compositions) including one or more alkali metal salts of a carboxylic acid. The present invention also relates to methods for preparing the fire retardant compositions described herein.
Claims30
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid, wherein the alkali metal salt of the tri-carboxylic acid constitutes at least about 80 wt % of the concentrate;
- a tri-carboxylic acid, wherein the tri-carboxylic acid constitutes from about 1 wt % to about 2 wt % of the concentrate;
- and
- a corrosion inhibitor component, wherein the corrosion inhibitor component comprises:
- a silicate-based corrosion inhibitor selected from the group consisting of calcium silicate, calcium strontium phosphosilicate, modified calcium phosphosilicates, sodium silicate, sodium metasilicate, calcium sodium phosphosilicate, potassium silicate, barium phosphosilicate, strontium phosphosilicate, zinc silicate, strontium zinc phosphosilicate, and zinc strontium calcium phosphosilicate., and combinations thereof.
2 more elements
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid, wherein the alkali metal salt of the tri-carboxylic acid constitutes at least about 80 wt % of the concentrate;
- a tri-carboxylic acid, wherein the tri-carboxylic acid constitutes at least about 0.5 wt % of the concentrate;
- and
- a corrosion inhibitor component, wherein the corrosion inhibitor component comprises a silicate-based corrosion inhibitor selected from the group consisting calcium silicate, calcium strontium phosphosilicate, modified calcium phosphosilicates, sodium silicate, sodium metasilicate, calcium sodium phosphosilicate, potassium silicate, barium phosphosilicate, strontium phosphosilicate, zinc silicate, strontium zinc phosphosilicate, and zinc strontium calcium phosphosilicate., and combinations thereof, and wherein the weight ratio of the silicate-based corrosion inhibitor to the tri-carboxylic acid is at least 1.8:1.
1 more element
(canceled)
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid;
- a tri-carboxylic acid;
- and
- a corrosion inhibitor component comprising a silicate-based corrosion inhibitor, wherein:
- the weight ratio of the alkali metal salt of the tri-carboxylic acid to the tri-carboxylic acid is at least 40:1.
2 more elements
(canceled)
A powder fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid;
- a tri-carboxylic acid;
- a thickener;
- a corrosion inhibitor component comprising an azole corrosion inhibitor and a molybdate corrosion inhibitor, wherein the weight ratio of the azole corrosion inhibitor to molybdate corrosion inhibitor is at least about 1:1, from about 1:1 to about 2:1, or about 1.5:1;
- and
- a flow conditioner.
3 more elements
A powder fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid, wherein the tri-carboxylic acid is selected from the group consisting of citric acid, isocitric acid, aconitic acid, agaric acid, trimesic acid, propane 1, 2, 3 tricarboxylic acid, and combinations thereof;
- a thickener selected from the group consisting of xanthan gum, rhamsan gum, welan gum, diutan gum, guar gum, and combinations thereof;
- a corrosion inhibitor selected from the group consisting of azole corrosion inhibitors, molybdate corrosion inhibitors, and combinations thereof;
- and
- a flow conditioner, wherein the flow conditioner is selected from the group consisting of phosphate flow conditioners, silicate flow conditioners, oxide flow conditioners, silica flow conditioners, cellulose containing flow conditioners, and combinations thereof.
2 more elements
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid, wherein the alkali metal salt of the tri-carboxylic acid constitutes at least about 80 wt % of the concentrate;
- a tri-carboxylic acid, wherein the tri-carboxylic acid constitutes from about 1 wt % to about 2 wt % of the concentrate;
- and
- a corrosion inhibitor component, wherein the corrosion inhibitor component comprises:
- a phosphate-based corrosion inhibitor selected from the group consisting of calcium phosphate (e.g., hydroxyapatite), calcium orthophosphate (ACP), potassium tripolyphosphate (KTPP), sodium dihydrogen phosphate, magnesium phosphate, magnesium phosphate dibasic trihydrate, zinc phosphate, ferric pyrophosphate, calcium aluminum polyphosphate (CAPP), calcium magnesium phosphate (CMP), strontium aluminum polyphosphate (SAPP), and combinations thereof.
2 more elements
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid, wherein the alkali metal salt of the tri-carboxylic acid constitutes at least about 80 wt % of the concentrate;
- a tri-carboxylic acid, wherein the tri-carboxylic acid constitutes at least about 0.5 wt % of the concentrate;
- and
- a corrosion inhibitor component, wherein the corrosion inhibitor component comprises a phosphate-based corrosion inhibitor selected from the group consisting of calcium phosphate (e.g., hydroxyapatite), calcium orthophosphate (ACP), potassium tripolyphosphate (KTPP), sodium dihydrogen phosphate, magnesium phosphate, magnesium phosphate dibasic trihydrate, zinc phosphate, ferric pyrophosphate, calcium aluminum polyphosphate (CAPP), calcium magnesium phosphate (CMP), strontium aluminum polyphosphate (SAPP), and combinations thereof, and wherein the weight ratio of the silicate-based corrosion inhibitor to the tri-carboxylic acid is at least 1.8:1.
1 more element
A fire retardant concentrate, the concentrate comprising:
- an alkali metal salt of a tri-carboxylic acid;
- a tri-carboxylic acid;
- and
- a corrosion inhibitor component comprising a phosphate-based corrosion inhibitor, wherein:
- the weight ratio of the alkali metal salt of the tri-carboxylic acid to the tri-carboxylic acid is at least 40:1, wherein the phosphate-based corrosion inhibitor is selected from the group consisting of calcium phosphate (e.g., hydroxyapatite), calcium orthophosphate (ACP), potassium tripolyphosphate (KTPP), sodium dihydrogen phosphate, magnesium phosphate, magnesium phosphate dibasic trihydrate, zinc phosphate, ferric pyrophosphate, calcium aluminum polyphosphate (CAPP), calcium magnesium phosphate (CMP), strontium aluminum polyphosphate (SAPP), and combinations thereof.
2 more elements
Dependencies are inferred from the claim text.