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US 4,047,959 AGranted
Nonionic water emulsions of tris(2,3-dibromopropyl)phosphate
AssigneePennwalt Corporation
InventorGeorge Paul Guzzardo
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Abstract
Stable nonionic water emulsions of the flame retardant (2,3-dibromopropyl)phosphate are disclosed and claimed. The water emulsions are achieved by use of a ketone solvent and one or more nonionics from selected groups which when used have a sole or combined HLB in the range of about 10 to 14. The stable emulsions are compatible with all water repellents including the cationic fluorochemical oil and water repellents.
Claims9
The textile flame retardant emulsion consisting essentially of:
- tris(2,3-dibromopropyl) phosphate -- about 40 to 50%, one or more ketones selected from the group consisting of C.sub.5 to C.sub.7 aliphatic and alicyclic ketones - about 6 to 12%, and about 3 to 6% of one or more nonionic surfactants having a hydrophile-lipophile balance of 10 to 14 selected from the group consisting of:
- a. sorbitan fatty acid esters and ethoxylated sorbitan fatty acid esters in which the ethylene oxide content ranges from about 4 to 20 moles and the fatty acids range from about C.sub.12 to C.sub.15,
- b. polyoxyethylene glycol tallate in which the ethylene oxide content ranges from about 4 to 20 moles, and
- c. ethoxylated condensate of ethylene glycol and propylene oxide in which the ethylene oxide content ranges from about 4 to 20 moles and the molecular weight ranges from about 1100 to 15,000.
- and water to make 100%, all percentages being by weight.
2 more elements
Dependencies are inferred from the claim text.