Storage stable liquid fugitive colored fire-retardant concentrates
AssigneePerimeter Solutions LP
InventorsMelissa Kim, Marcela Muñoz, Howard L. Vandersall, Juan Robles
Life of this patent
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Abstract
This disclosure relates to fugitive color systems and storage-stable fugitive colored liquid long-term fire retardant compositions comprising a fugitive color system. The fugitive color system comprises a fugitive color pigment. In particular, disclosed herein is the identification of fugitive color pigments exhibiting hydrophilic or diminished hydrophobic tendencies. And, in certain aspects, the fugitive color pigment is fluorescent.
Claims15
A liquid fire-retardant concentrate, the concentrate comprising a liquid fire-retardant component and a fugitive color system, the fugitive color system comprising a fugitive pigment, wherein:
- the fugitive pigment is formaldehyde-free and comprises a fluorescent dye encapsulated within a polymeric material and is characterized by a surface free energy of at least about 45 and a polar component value of at least about 20;
- and
- the liquid fire-retardant concentrate exhibits a substantially constant storage stability for at least 7 days, and wherein:
- the liquid fire-retardant component comprises at least one ammonium phosphate, the at least one ammonium phosphate having a molar ratio of ammoniacal nitrogen to phosphorus (N/P ratio) in a range of from about 1.1 to about 1.9.
A liquid fire-retardant concentrate, the concentrate comprising a liquid fire-retardant component and a fugitive color system, the fugitive color system comprising a fugitive pigment, wherein:
- the fugitive pigment is formaldehyde-free and comprises a fluorescent dye encapsulated within a polymeric material and is characterized by a surface free energy of at least about 45 and a polar component value of at least about 20;
- and
- the liquid fire-retardant concentrate exhibits a substantially constant storage stability for at least 7 days, and wherein:
- the liquid fire-retardant component comprises at least one ammonium phosphate selected from the group consisting of monoammonium phosphate (MAP), diammonium phosphate (DAP), ammonium polyphosphate (APP), and mixtures thereof;
- the composition further comprising a suspending agent and a corrosion inhibiting agent.
Dependencies are inferred from the claim text.