antendningsretarderande additives for pvc - zinkborat and brandskyddad pvc der tillsatsmedlet's

摘要

An ignition-retarding adjuvant for rigid or unplasticized polyvinyl chloride comprising a compound capable of assisting kinetic control of the evolution of hydrochloric acid and a catalytic composition of salts of at least one transition metal capable of reducing the conversion to benzene and other aromatic compounds inherent in any pyrolytic degradation of polyvinyl chloride.