Esters of phosphonic acid as fire-retardants in polyurethane foams
Abstract
Abstract A POLYURETHANE FORM HAVING INCORPORATED THEREIN A PHOSPHOROUS COMPOUND OF THE FORMULA (R3-O-P(=O)(-O-R4))N-Z-P(=O)(-O-R5)-O-R6 WHEREIN Z IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKYLENE, AKENYL, ARYL SUBSTITUTED ALKYL, ARYL ALKYL SUBSTITUTED ARYL, NITRO ALKYL, HALOGEN SUBSTITUTED ARYL, HERETOCYCLIC, HYDROXY SUBSTITUTED ALKYL, HYDROXY SUBSTITUTED ALKYLENE, HALOGEN SUBSTITUTED ALKYLENE, HALOGEN SUBSTITUTED ALKYL, HYDROXY SUBSTITUTED ARYL, HYDROXYL ARYL SUBSTITUTED ALKYL, HYDROXY ALKYL SUBSTITUTED ARYL, HYDROXY ALKYL SUBSTITUTED HETEROCYCLIC, HYDROXY ALKOXY ALKYL, HYDROXY POLY ALKOXY ALKYL AND MIXTURES THEREOF, R3, R4, R5 AND R6 ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL, ALKYL SUBSTITUTED ARYL, ARYL SUBSTITUTED ALKYL, NITRO ALKYL, HALOGEN SUBSTITUTED ARYL, HALOGEN SUBSTITUTED ALKYL, HYDROXY ALKYL, ALKOXY ALKYL, HYDROXY ALKOXYALKYL SUBSTITUTED ALKENYL, HYDROXY POLYALKOXY ALKYL, AND MIXTURES THEREOF. AND N IS 0 TO 5.
Inventors
- 👤 C Baranauckas
- 👤 I Gordon
Bibliographic Details
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