Hydroxyl-containing liquid phosphor-nitrogen fire retardant and preparation method thereof
The invention relates to a hydroxyl-containing liquid phosphor-nitrogen fire retardant and a preparation method thereof, and belongs to the technical field of flame retardation. The preparation method comprises that hexachlorocyclotriphosphazene, p-hydroxybenzaldehyde and an acid binding agent are a...
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| creator | LI JINCHUN HU WENTIAN ZHANG XIN |
| description | The invention relates to a hydroxyl-containing liquid phosphor-nitrogen fire retardant and a preparation method thereof, and belongs to the technical field of flame retardation. The preparation method comprises that hexachlorocyclotriphosphazene, p-hydroxybenzaldehyde and an acid binding agent are added into an organic solvent and undergo a heating reflux reaction, the reaction product is subjected to aftertreatment to form white solid powder hexa(4-formylphenoxy)cyclotriphosphazene, the hexa(4-formylphenoxy)cyclotriphosphazene, diethyl phosphite and triethylamine undergo a heating reflux reaction in an organic solvent, and the reaction product is subjected to reduced pressure distillation so that the organic solvent, diethyl phosphite and the catalyst are removed and a hexa(4-diethyl phosphate hydroxymethylphenoxy)cyclotriphosphazene fire retardant is obtained. |
| format | Patent |
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The preparation method comprises that hexachlorocyclotriphosphazene, p-hydroxybenzaldehyde and an acid binding agent are added into an organic solvent and undergo a heating reflux reaction, the reaction product is subjected to aftertreatment to form white solid powder hexa(4-formylphenoxy)cyclotriphosphazene, the hexa(4-formylphenoxy)cyclotriphosphazene, diethyl phosphite and triethylamine undergo a heating reflux reaction in an organic solvent, and the reaction product is subjected to reduced pressure distillation so that the organic solvent, diethyl phosphite and the catalyst are removed and a hexa(4-diethyl phosphate hydroxymethylphenoxy)cyclotriphosphazene fire retardant is obtained.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | Hydroxyl-containing liquid phosphor-nitrogen fire retardant and preparation method thereof |
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