Container for photographic film cartridge

Details Container for photographic film cartridge Container for photographic film cartridge

1988-09-19

1993-08-31

Schofer, Joseph L.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 368, 428 369, 206389, 206407, 5263486, B29D 2200, B65D 8530, C08F21002

Patent

active

052407543

ABSTRACT:
In a container for a photographic film cartridge having a body and a cap fitted to said body, the improvement comprising that said cap is molded from a resin containing more than 20% by weight of a low-pressure linear low-density polyethylene which is a copolymer of ethylene and butene-1 and has a density of 0.90 to 0.93 g/cm.sup.3 and a melt index of 8 to 60 g/10 minutes.
In the case of the molding resin for the cap of the invention, heat resistance is high, and this resin smoothly flow in a molding machine though temperature of the molten resin is relatively low. Accordingly, coloring troubles hardly occur, and molding cycle can be shortened. This resin is also superior in injection moldability, and molding troubles such as roping, camber, kink and deformation are rare. Mold shrinkage is also little. Since fitting strength of the cap and container body is large, the cap is scarcely detached during packaging process. Water vapor permeability of the resin of the cap is little, and moistureproofness of the container is high.

REFERENCES:
patent: 3318976 (1967-05-01), Short
patent: 4011382 (1977-03-01), Levine et al.
patent: 4147291 (1979-04-01), Akao et al.
patent: 4258848 (1981-03-01), Akao et al.
patent: 4331725 (1982-05-01), Akao
patent: 4337285 (1982-06-01), Akao et al.
patent: 4356224 (1982-10-01), Akao et al.
patent: 4359499 (1982-11-01), Akao et al.
patent: 4386124 (1983-05-01), Akao
patent: 4411943 (1983-10-01), Akao
patent: 4411945 (1983-10-01), Akao et al.
patent: 4436809 (1984-03-01), Akao et al.
patent: 4452846 (1984-06-01), Akao
patent: 4469741 (1984-09-01), Akao
patent: 4513050 (1985-04-01), Akao
patent: 4530980 (1985-07-01), Radici
patent: 4565733 (1986-01-01), Akao
patent: 4565743 (1986-01-01), Akao
patent: 4576865 (1986-03-01), Akao
patent: 4579781 (1986-04-01), Akao
patent: 4584234 (1986-04-01), Hirose et al.
patent: 4587175 (1986-05-01), Akao
patent: 4629640 (1986-12-01), Akao
patent: 4639386 (1987-01-01), Akao
patent: 4653640 (1987-03-01), Akao
patent: 4661395 (1987-04-01), Akao
patent: 4661401 (1987-04-01), Akao
patent: 4663218 (1987-05-01), Akao
patent: 4687692 (1987-08-01), Akao
Modern Plastics Encyclopedia, Oct. 1983, vol. 60, No. 10A.
Plastiques Modernes et Elastomeres, vol. 34, No. 3, Apr. 1982, pp. 52-54.

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