| 摘要 |
PROBLEM TO BE SOLVED: To obtain the above composition excellent in pigment dispersibility, causing little decomposition of hydrogen peroxide or little gas production even on contact with a hydrogen peroxide solution, capable of preventing decline in hydrogen peroxide solution's bleaching power and the deformation of the container made therefrom, comprising a polyolefin resin and a specific pigment in specified proportions. SOLUTION: This composition comprises (A) 20-99.95wt.% of a polyolefin resin such as high-density polyethylene and (B) 0.05-80wt.% of a titanium dioxide pigment obtained by coating (B1 ) titanium dioxide (e.g. 0 05-0.45μm particle size distribution and 0.20-0.30μm in average particle diameter) with (B2 ) e.g. 0.05-100 pts.wt. based on 100 pts. by wt. of the component B, of an acid-modified resin [e.g. an oligomer prepared by copolymerizing a monomer having unsaturated double bond such as anα-olefin with (B') a monomer having both unsaturated double bond and polar group such as maleic acid (anhydride) or acrylic acid, or an oligomer prepared by graft copolymerization of the monomer B' to a polyolefin resin].
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