FIBRES RETARDATRICES D'INFLAMMATIONS OU D'INCENDIES A BASE D'ALCOOL POLYVINYLIQUE, DE CHLORURE DE POLYVINYLE ET D'ACIDE STANNIQUE CALCINE

摘要

Shaped articles comprised of PVA and PVC having improved flame-retardancy and resistance to discoloration resulting from heat treatment are provided by the incorporation therein of calcined stannic acid, characterized by a specific crystal size.