Film for packaging light-sensitive materials

Details Film for packaging light-sensitive materials Film for packaging light-sensitive materials

1983-02-02

1984-06-05

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428290, 428323, 428328, 428461, 428500, 428511, 428513, 428515, 428516, 4285375, B32B 2700, B32B 516

Patent

active

044528469

ABSTRACT:
A film for packaging light-sensitive materials has at least one light-shielding film comprising polyethylene polymer and not less than 1 weight % of light-shielding material, wherein not less than 50 weight % of the total polyethylene polymer is linear low density polyethylene (L-LDPE). At least one additional layer of thermoplastic resin film, flexible sheet or aluminum layer may be provided.

REFERENCES:
patent: 4172915 (1979-10-01), Sheptak et al.
patent: 4311742 (1982-01-01), Otsuka
patent: 4337285 (1982-06-01), Akao et al.
patent: 4337298 (1982-06-01), Karim et al.

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