Flame retardant thermoplastic synthetic resin

Details Flame retardant thermoplastic synthetic resin Flame retardant thermoplastic synthetic resin

1980-07-11

1981-05-05

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252 81, 260 457P, 260 458NE, 260 459NP, 260DIG24, 521 85, 521907, 544195, C08F 965, C08K 534

Patent

active

042658063

ABSTRACT:
A process for producing a solid, intumescent, phosphorus-containing flame retardant for thermoplastic synthetic resins, comprises evaporating to dryness the reaction product of (a) 1 mole of phosphoric acid, phosphorous acid or polyphosphoric acid, (b) 0.5-2 moles of ethylene oxide or glycol, and (c) 0.2-1 mole of melamine, and tempering the thus-obtained solid at 100.degree.-250.degree. C. The product so obtained can be added to such resins to render them flameproof without deleterious side effects such as discoloration.

REFERENCES:
patent: 4010137 (1977-03-01), Brady

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