| 摘要 |
1. The use of a moulding compound consisting of 1) 100 parts by weight of a polyethylene which 1.1) is produced by means of a chromium-containing catalyst, 1.2) has a density of above 0.935 g/cm**3 , 1.3) has a melt index (according to DIN 53 735 at 190 degrees C/2.16 kg) of below 0.7 g/10 min. and 1.4) has a solution viscosity (according to DIN 53 728/sheet 4) of 1 to 5 cm**3 /g, 2) 0.05 to 1 part by weight of a tris-(2,4-dialkyl-phenyl)-phosphite, the alkyl groups being identical or different and each containing 1 to 9 carbon atoms, 3) 0.05 to 1 part by weight of 1,3,5-tri-methyl-2,4,6-tris-(3',5'-di-tert-butyl-4'- -hydroxy-benzyl)-benzene, and 4) - optionally - further customary additives in the usual amounts common to the trade, for producing 10 to 500 mu m thick, biaxially stretched films, by the film blowing process, with a stretch-blow ratio of up to 1:10. |
