Polypropylene resin compositions

A molded product which is irradiated with radiant rays for sterilization and which accommodates aqueous solutions, said molded product being made from a polypropylene resin composition comprising 100 parts by weight of a polypropylene resin, 0.01 to 1.0 part by weight of a metal diarylphosphate represented by the following general (I):

• ##STR3## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group;
• M represents an alkali metal or an alkaline earth metal;
• n is an integer of 1 or 2;
• and A represents an alkylidene group;
• and 0.001 to 1.0 part by weight of a hydroxide of an alkali metal, a hydroxide of an alkaline earth metal or aluminum hydroxide, wherein said polypropylene resin composition inhibits the formation of floating matter in an extract obtained by immersing the polypropylene resin composition in hot water and cooling the extract and wherein the polypropylene resin composition upon irradiation with radiant rays for sterilization resists a reduction in pH of an extract obtained in a promoted hot water-extraction test.