B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1041
B29C 49/00 (2006.01) B29C 49/08 (2006.01) C08F 210/06 (2006.01) C08K 5/098 (2006.01)
Patent
CA 1043973
Abstract Articles such as containers made of a crystalline olefin polymer having improved transparency and impact strength obtained by biaxially es- tending an extruded tubular body of said polymer at an orientation tempera- ture below the melting point to attain an extension magnification ratio of at least 1.5 for each of longitudinal and lateral directions wherein said polymer is a statistical random copolymer of propylene and from 0.3% to 5.0 by weight ethylene having a melt index of 0.6 - 3.0 g/10 min. Optionally, from 0.03 to 0.20 part by weight of aluminum p-tert-butyl benzoate or sodium p-tert-butyl benzoate are added to 100 parts by weight of said copolymer. The containers of this invention have improved transparency and impact strength are known biaxially extended containers.
210035
Mitsui Toatsu Chemicals Inc.
Na
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