Steam-sterilisable container for medical use - consists of EVA copolymer with 5-30 per cent vinyl acetate, made heat-resistant by treatment with very strong ionising radiation

摘要

Container for medical use (I) is made of an EVA copolymer (II) and is heat resistant at temps. up to 160 deg. C. Pref. (I) is made heat-resistant by treatment with very strong ionising radiation, esp. alpha-, beta-, gamma- or X-rays, pref. beta radiation, at an intensity of 30-250 (pref. 60) kGy; (II) contains 5-30 (pref. 14) % copolymerised vinyl acetate (VA). USE/ADVANTAGE - Compared with prior-art PVC containers, (I) has better thermal, mechanical and chemical properties, can be steam-sterilised in an autoclave at up to 160 deg. C, and does not suffer from the disadvantages of plasticiser migration and disposal problems.