Laminate-tube container improved in barrier property at shoulder

Details Laminate-tube container improved in barrier property at shoulder Laminate-tube container improved in barrier property at shoulder

1993-04-30

1994-12-13

Nold, Charles R.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 367, 428 3691, 428 3692, 428500, 222106, 222107, 206277, 2065242, 2065246, B32B 2700, B65D 6500

Patent

active

053728637

ABSTRACT:
A laminate-tube container having a shoulder with improved barrier properties is characterized in that the shoulder comprises a material composed of (A) 0 to 50% by weight of polyethylene, (B) 10 to 50% by weight of an ethylene-vinyl alcohol copolymer or a saponified ethylene-vinyl acetate copolymer and (c) 10 to 90% by weight of a carboxylic acid-modified adhesive polyethylene resin. The laminate-tube is markedly improved in the gas barrier property at the shoulder thereof and, thus, the quality of the contents of the container can be maintained for a long period of time. The laminate-tube container according to the present invention is extremely useful as containers used for toothpaste, medicine, food, drinks, adhesives or the like.

REFERENCES:
patent: 4610914 (1986-09-01), Newsome
patent: 4705708 (1987-11-01), Briggs et al.
Derwent Abstract of Japan Patent No. JP-A-55 139 228, Oct. 31, 1980.
Derwent Abstract of Japan Patent No. JP-A-2 175 151, Jul. 6, 1990.
Derwent Abstract of Japan Patent No. JP-A-1 168 424, Jul. 3, 1989.
Derwent Abstract of Japan Patent No. JP-A-54 163 184, Dec. 25, 1979.

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