METHOD OF MANUFACTURING EXTRUDED PRODUCT OF FIRE-RETARDANT CROSSLINKED POLYOLEFIN COMPOSITION

摘要

In a method of manufacturing an extruded product of a fire-retardant crosslinked polyolefin composition, including the steps of mixing l0 to 200 parts by weight of at least one material selected from the group consisting of an inorganic fire retardant, an organic fire retardant, and an inorganic filler to l00 parts by weight of polyolefin, adding predetermined amounts of an unsaturated alkoxysilane and a radical polymerization initiator to the resultant mixture to cause silicone grafting, and bringing a reacted mixture into contact with water in the presence of a silanol condensation catalyst, a cooling zone is formed between an extruder (3) and a crosshead (6) to set a uniform temperature of a molten resin composition and to cool the composition temperature to a desired temperature.