Composite container having barrier property

Details Composite container having barrier property Composite container having barrier property

1995-01-17

1997-12-09

Dye, Rena

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 342, 428339, 4284763, 229 31, 229 35R, B65D 540, B32B 102

Patent

active

056958390

ABSTRACT:
A composite container having a barrier property and comprising a packaging material which comprises an inner surface layer, a barrier layer, and a base material layer wherein the barrier layer comprises one selected from nylon MXD 6 and a semi-aromatic polyamide resin, which is a copolymer comprising an aromatic polyamide forming component and an aliphatic polyamide forming component wherein the aromatic polyamide forming component comprises an aliphatic diamine and isophthalic acid and/or terephthalic acid, and the aliphatic polyamide forming component comprises a lactam or an aliphatic diamine, and an aliphatic dicarboxylic acid. The above packaging material may also comprise an inner surface layer having a barrier property and a base material layer wherein the inner surface layer having a barrier property comprises the above semi-aromatic polyamide resin. Such a composite container having a barrier property has both of a good barrier property and a sufficient strength, and is capable of being produced at a low cost without complicating the production process to be used therefor.

REFERENCES:
patent: 4816308 (1989-03-01), Shimizu et al.
patent: 4908272 (1990-03-01), Harada et al.
patent: 4940612 (1990-07-01), Gibbons et al.
patent: 5049624 (1991-09-01), Adams et al.
patent: 5093164 (1992-03-01), Bauer et al.
patent: 5106693 (1992-04-01), Harada et al.

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