| abstract |
PURPOSE: To obtain a stretch film having improved heat seal quality and useful as packing material by forming compound resin consisting of polyethtlene having particular higher density, ethylene-acetic vinyl polymerization and fatty acid component to film under a definite formation temperature. n CONSTITUTION: To a resin 100 parts by weight consisiting of (a) polyethylene having melt index of 0.5W10g/10 minutes and higher density of more than 0.925g/ cm 2 , 10W50% by weight, preferably 15W45% by weight and (b) ethylene-acetic vinyl polymerization get by high pressure method and having melt index 0.2W6g/10 minutes and acetic vinyl unit 3W28%, fatty acid ester 0.5W5 parts by weight is added. Then, this resin components is formed at the temperature of 150W250°C, preferably 16W230°C to obtain the objected stretch film. n COPYRIGHT: (C)1980,JPO&Japio |