FIRE-PROTECTED POLYMER COMPOSITION Russian patent published in 1997 - IPC

FIELD: production of fire-protected polymer materials. SUBSTANCE: fire-protected polymer composition comprises thermoplastic polymer and inhibitor of burning, ammonium salt of amide of methylphosphonic acid being used as said inhibitor. Fireproofing compound is microcapsulated in polymer envelope, decomposition temperature of polymer envelope being equal to decomposition temperature of thermoplastic polymer or by 50-80 C higher it. Mass ratio of thermoplastic polymer and microcapsulated ammonium salt of methyl phosphonic acid amide is 80-04:8-20; mass ratio of said ammonium salt and polymer envelope of microcapsule is 80-92:6-20. EFFECT: improved quality of desired product. 1 tbl