Material for packaging light-sensitive materials

Details Material for packaging light-sensitive materials Material for packaging light-sensitive materials

1983-04-06

1986-04-01

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of metal

428500, 428511, 428516, B32B 1508

Patent

active

045797811

ABSTRACT:
A light-shielding paper consists of a laminate comprising a substrate, a polyethylene polymer layer comprising 50-100% by weight of L-LDPE and being substantially free from light-shielding material, the laminate as a whole containing light-shielding material, and a protective layer on the side opposite to the polyethylene polymer layer.

REFERENCES:
patent: 3884692 (1975-05-01), Minagawa
patent: 4337285 (1982-06-01), Akao et al.
patent: 4337298 (1982-06-01), Karim et al.
patent: 4452846 (1984-06-01), Akao

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