ULTRAHIGH MOLECULAR WEIGHT POLYOLEFIN COMPOSITION, MOLDED PRODUCT MADE OF THE SAME AND PRODUCTION OF THE SAME PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide an ultrahigh molecular weight polyolefin composition capable of imparting a molded product excellent in weather resistance, chemical resistance and thermal stability and also excellent in tensile strength and tensile elastic modulus even when produced in a production method having an extraction process of a diluent. SOLUTION: This ultrahigh molecular weight polyolefin composition comprises (A) 3-80 pts.wt. ultrahigh molecular weight polyolefin having the intrinsic viscosity [η] of 5-40 dL/g, (B) 97-20 pts.wt. diluent and (C) an antioxidant stabilizer having a weight average molecular weight (Mw) of >=300 (preferably >=650, more preferably >=2,000) in an amount of 0.05-5.0 pts.wt. based on the total weight of the ingredients A and B of 100 pts.wt.