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BE741377A Expired / Lapsed BE ⏱️ 0.0 years remaining

Resin-coated photographic backing paper

Assignee: —
•
Filing: 1969-11-06
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Granted: —
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Expires: 1989-11-06
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Abstract

Abstract The backing paper with which a photographic film is wound on a spool to protect the film from light and to protect the photosensitive emulsion layer of the film, is coated on one side with (A) pigmented resin carrying printing and (B) a surface layer of a transparent resin, and on the other side with (C) a layer containing carbon black and a styrene/butadiene copolymer and (D) a layer of carbon black and polyethylene. Preferably an antistatic layer containing polyvinyl alcohol, an alkali halide and an agent to give a mat appearance is applied on top of layer (D). Specifically the resin in (A) and (B) is cellulose acetobutyrate.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction BE
Data Source google_patents
Last Synchronized 2026-11-09 18:34
CPC Classifications
G; G03; G03C; G03C3/00; G03C3/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975

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