METHOD FOR RECYCLING OF PHENOLIC ANTIOXIDANT AGENT, PROCESS FOR PRODUCTION OF OLEFIN POLYMER, POLYOLEFIN POWDER, AND FIBERS

• Main Authors: SEGUCHI TETSUYA, URUSHIHARA TSUYOSHI, OKAMOTO KOHEI, AYABE TAKASHI, KAWAMOTO NAOSHI
• Format: Patent
• Language: English; French; German
• Published: 11.07.2012
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided are a recycling method for industrially, simply and effectively recycling a phenolic body from a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization; and an olefin polymer obtained by this method. In a method for recycling a phenolic antioxidant wherein a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization is recycled to a phenolic body, a nitrogen gas comprising water and/or a proton donor at a volume ratio of 1.0×10 -6 to 2.5×10 -2 with respect to 1 volume of nitrogen is brought into contact with the olefin polymer.