Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1988-11-09
1990-02-27
Seidleck, James
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428522, 4285428, 525 57, 5253306, C08L 2904, C08F 812, B32B 2730
Patent
active
049045091
ABSTRACT:
An injection-molded body comprising a layer of an olefin/vinyl alcohol copolymer having a very high molecular weight is obtained by melt-kneading a composition comprising (i) a high-molecular-weight olefin/vinyl alcohol copolymer having a melt flow rate of 0.4 to 6.0 g/10 min as determined at 190.degree. C. and a vinyl alcohol content of 40 to 80 mole % and (ii) a low-molecular-weight olefin/vinyl alcohol copolymer having a melt flow rate of 3.0 to 60 g/10 min as determined at 190.degree. C., which is higher by at least 0.5 g/10 min than that of the high-molecular-weight ethylene/vinyl alcohol copolymer (i), and a vinyl alcohol content of 45 to 85 mole % at a weight ratio of from 98/2 to 40/60, and injecting the melt-kneaded composition into a mold through an orifice.
REFERENCES:
patent: 4349644 (1982-09-01), Iwanami et al.
patent: 4526821 (1985-07-01), McHenry et al.
patent: 4590131 (1986-05-01), Yazaki et al.
patent: 4672087 (1987-06-01), Miller et al.
patent: 4743479 (1988-05-01), Nakamura et al.
Hirano Masami
Hirata Sadao
Matsuo Junichi
Nohara Shigezo
Tanikawa Isao
Seidleck James
Toyo Seikan Kaisha Ltd.
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