Carbonated beverage can and method for producing a carbonated be

Details Carbonated beverage can and method for producing a carbonated be Carbonated beverage can and method for producing a carbonated be

1986-07-14

1988-08-23

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

156185, 156187, 156188, 220453, 220468, 428377, B65D 2308, B65H 8100

Patent

active

047660198

ABSTRACT:
The present invention resides in a method for producing a carbonated beverage can which has acceptable creep, modulus and yield strength values, which comprises a can body, which is made up of a core of a thermoplastic material, at least two layers of non-fibrous, extruded polyolefin film which has either been monoaxially stretched or biaxially stretched, [and which are wrapped around the core singularly or in plys at opposite plus/minus angles in relationship to each other to yield disproportionate stress resistance vectors for hoop and axial stresses present in said body at a 2:1 ratio] one layer of which is wrapped around said core singularly or in plys at an angle with respect to said core of from about +60.degree. to about +80.degree. and the other of said two layers is wrapped around said core singularly or in plys at an angle with respect to said core of from about -60.degree. to about -80.degree., an adhesive layer which is placed between the core and the layers of polyolefin in order to adhere the layers to the core as well as the layers to themselves and at least one layer of a barrier material, and ends which are attached [by some suitable method] to the can body.

REFERENCES:
patent: 4144111 (1979-03-01), Schaerer
patent: 4163827 (1979-08-01), Nieman et al.
patent: 4181239 (1980-01-01), Heiremans et al.
patent: 4514245 (1985-04-01), Chabrier
patent: 4640853 (1987-02-01), Schmeal et al.
patent: 4642252 (1987-02-01), Sasaki et al.

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