| 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) 20-95.99wt.% of a polyolefin resin such as high-density polyethylene and (B) 0.05-80wt.% of a titanium dioxide pigment obtained by surface treatment of (B1 ) titanium dioxide (e.g. 0.05-0.45μm particle size distribution and 0.20-0.30μm in average particle diameter) with (B2 ) alumina and (B3 ) a methylhydrogenpolysiloxane of the formula ((n) is an average polymerization degree) in amounts of 0.01-2pts. by wt. and 0.01-1pts. by wt., respectively, based on 100pts. by wt. of the component B1 .
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