Lightsafe masking film

Details Lightsafe masking film Lightsafe masking film

1989-02-21

1990-06-26

Lesmes, George F.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

428329, 428333, 428343, B32B 516, B32B 1902

Patent

active

049371169

ABSTRACT:
A lightsafe masking film for use in masking a roomlight film is disclosed which comprises a substrate, and a transparent, lightsafe layer peelably provided over the surface of said substrate and containing finely divided particles of an inorganic metal compound capable of blocking ultraviolet light to which the roomlight film is sensitive.

REFERENCES:
patent: 3352728 (1987-11-01), Stein et al.
patent: 3619335 (1971-11-01), Bryan
patent: 3810812 (1974-05-01), Koenig
patent: 3892900 (1975-07-01), Shima et al.
patent: 4567129 (1986-01-01), Held
patent: 4681784 (1987-07-01), Ebara et al.
Solid State Technology, Jun. 1973, vol. 6, No. 6, "Properties of Iron Oxide Films for Photomask Applications", pp. 33-36.

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