| abstract |
PURPOSE: To prevent degradation caused by heat and to stabilize a molten flow value by blending a saturated polyolefin and specified long chain N,N- dialkylhydroxylamines. n CONSTITUTION: At least one or two saturated polyolefins (A) selected from PP, (linear) low density PE, medium density PE, high density PE, poly (butene-1), ethylene/vinyl acetate copolymer and ethylene/propylene copolymer or the like is mixed with 0.01-5 wt.% of long chain N,N-dialkylhydroxylamines (B) having the formula (T 1-2 represent the alkyls of C 12-18 ), 0.01-2 wt.% of alkali metal salt (C) of fatty acid (such as stearic acid calcium, for example), phenol antioxidant (D) [such as neopentane tetrayltetrakis (3,5-di-tertiary butyl-4- hydroxyhydrocinnamate), for example], steric hindrance amine photostabilizer (E) [such as bis (2,2,6,6-tetramethylpiperidinyl-4-yl) sebacate], organic phosphide (F) [such as tris (2,4-ditertiary butyl phenyl) phosphite], ultraviolet absorber G and thio synergist H. n COPYRIGHT: (C)1989,JPO |