EP0023701A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composite film, process for its manufacture, its use and packaging material consisting of this film
Assignee: Hoechst AG
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Filing: 1980-07-30
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Granted: —
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Expires: 2000-07-30
Abstract
Abstract A film made from a thermoplastic can be coated with another plastic to give a film composite. The coating can take place on one or both sides. A film composite which comprises a polyvinyl alcohol backing film and a polyvinyl acetal coating is particularly suitable for use as a packaging material. The coating is particularly suitable for use as a packaging material. The coating is advantageously achieved by applying a polyvinyl acetal solution to the backing film and subsequently removing the solvent. A particularly suitable coating agent is polyvinylbutyral.
Inventors
- 👤 Wolfgang Dr. Zimmermann
- 👤 Albrecht Dr. Harréus
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 17:56
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/048; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/306; C08J7/0427; C08J7/052; B32B2553/00; C08J2329/00; C08J2329/02; C08J2329/04; C08J2429/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2374767A
Cited
GB1045635A
Cited
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