FLAME-RETARDANT POLYOLEFIN RESIN COMPOSITION

摘要

PURPOSE:To provide a polyolefin resin compsn. which has been made flame- retardant without detriment to its characteristics, i.e., low density and high strengths, and without increasing the amt. of a corrosive gas or smoke generated during burning. CONSTITUTION:This compsn. is prepd. by compounding 100 pts.wt. polyolefin with 1-20 pts.wt. red phosphorus and 1-30 pts.wt thermally expandable graphite which expands at least 100-fold in the direction of C axis when rapidly heated (80-1,000 deg.C) and contains 80-mesh-on particles in an amt. of at least 80%.