Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1993-12-28
1996-03-26
Buffalow, Edith
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
428 369, 428 3691, 428212, 428220, 383 38, 206219, B29D 2200
Patent
active
055018874
ABSTRACT:
Disclosed is a resin laminate comprising: an outer layer formed from a linear polyethylene having a specific density; an inner layer formed from a linear polyethylene having a specific density; and an intermediate layer(s) provided between the outer layer and the inner layer, wherein at least one intermediate layer comprises a linear polyethylene having a specific density different from those of the linear polyethylenes for forming the outer layer and the inner layer; and at least one layer of the outer, inner and intermediate layers is formed from a linear polyethylene composition containing a high-density polyethylene having a specific density. Also disclosed in a container formed from the resin laminate. The resin laminate is excellent in hygienic qualities, transparency, flexibility and heat resistance. The container is hardly distorted even when subjected to a sterilization process under severe conditions, and is excellent in heat resistance, sealing strength, drop strength, transparency and flexibility.
REFERENCES:
patent: 4775502 (1988-10-01), Shishido et al.
patent: 4961495 (1990-10-01), Yoshida et al.
Abstract of JP-A-4-266759 Sep. 22 1992 (WPI Acc No: 92-363045/44).
Abstract of JP-A-63-248633 Oct. 14, 1988 (WPI Acc. No. 88-334808/47.
Abstract of JP-A-3-277365 Dec. 9 1991.
Abstract of JP-A-2-4671 (XRAM Acc No: C89-162046).
Abstract of JP-U-5-5138).
Abstract of JP-A-62-64363 (XRAM Acc No: C87-036546).
Kashiyama Shigetoshi
Morishige Kozo
Tanaka Hiroshi
Watanabe Katsushi
Buffalow Edith
Mitsui Petrochemical Industries Ltd.
Otsuka Pharmaceutical Factory Inc.
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