Phosphorus-containing spirobi(meta-dioxane) phenolic polymers

Flame-resistant resins are prepared by heating at 100 DEG -150 DEG C. a phenol, condensed phosphoric acids and a 3,9-dialkenylspirobi(metadioxane) having the general formula: wherein each R1 is a hydrogen atom, a chlorine atom or a methyl group and each R2 is a hydrogen atom or a methyl group. Cond...

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Hauptverfasser:	KIFF BEN WILTON, GUEST HOWARD RUSSELL
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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