To improve the mechanical resistance and resistance to color change of a polymer propylene stabilized, treated with radiation of a high energy and the product

摘要

A propylene polymer is rendered resistant to high energy radiation induced discoloration and losses of physical properties by the incorporation therein of a phenolic isocyanaurate compound as a stabilizer, in conjunction with a thiosynergist, and preferably also a stearate. The invention makes possible the production of a range of radiation- sterilized, medical single-use items, such as syringes, forceps, clamps and trays.