Container for photographic film cartridge

Details Container for photographic film cartridge Container for photographic film cartridge

1989-06-08

1990-10-02

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

2063161, 206407, 524580, B65D 8500

Patent

active

049606263

ABSTRACT:
In a container for a photographic film cartridge having a body and a cap made of a high-pressure branched low-density polyethylene resin and fitted to said body, the improvement comprising that said polyethylene resin has a melt index of 7 to 40 g/10 minutes and a density of 0.918 to 0.930 g/cm.sup.3 and contains 0.05 to 1 wt. % of a fatty acid amide lubricant and that the bending rigidity of said cap is 1200 to 4000 kg/cm.sup.2.
This resin for the cap is superior in fluidity, and molding troubles and coloring troubles at molding remarkably decrease. The molding cycle is also shortened. This cap is superior in fitness to the container body, and moisture sealing is improved.

REFERENCES:
patent: 4117193 (1978-09-01), Tsuchiya et al.
patent: 4485217 (1984-11-01), Gunter et al.
patent: 4639386 (1987-01-01), Akao
patent: 4844961 (1989-07-01), Akao

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