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US 10,662,275 B2Granted
Guanylurea alcohol phosphates and their use as reactants in polyurethane and epoxy resin applications
AssigneeLubrizol Advanced Materials, Inc.
InventorsJohn Ta-Yuan Lai, Janean Nagorski
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Abstract
Guanylurea alcohol phosphate salts are disclosed. Flame retardant thermoplastic and thermoset polymers can be made by incorporating said guanylurea alcohol phosphate salts into polymers and these polymers have improved properties over similar thermoplastic or thermoset polymers where guanylurea phosphate salts are added as flame retardant dispersions to said polymer. Flame retardant polyurethane foams where the guanylurea alcohol phosphate salts have been incorporated into the polyurethane are a particularly preferred embodiment.
Claims15
A flame retardant composition comprising:
- a polymeric reaction product of
- a) a mono or polyhydroxyl functional phosphate ester compound formed from reacting a polyol with a source of phosphoric acid,
- b) dicyanodiamide and water, and
- c) (a) an epoxy compound having an epoxy ring that is reactive with the hydroxyl group to form a covalent chemical bond between a methylene group of the ring and the oxygen of the hydroxyl group on the phosphate ester and/or (b) an isocyanate compound having an isocyanate group that is reactive with the oxygen of the hydroxyl group of the phosphate ester to form a urethane linkage,
- wherein said phosphate ester compound is reacted with said epoxy compound and/or said isocyanate compound to form a polymeric reaction product with a covalent chemical bond between said phosphate ester compound and said epoxy and/or isocyanate compound, and
- wherein said polymeric reaction product is characterized as a flame retardant urethane foam.
3 more elements
Dependencies are inferred from the claim text.