Title:
A POLYOLEFIN FILM HAVING ANTIFOG PROPERTIES
Document Type and Number:
WIPO Patent Application WO2004080715
Kind Code:
A8
Abstract:
A multilayer, polyolefin, bi-axially oriented film comprises at least one base layer, a first intermediate layer, a first cover layer and a second cover layer disposed on the opposite side from the first cover layer and the first intermediate layer with respect to the base layer. Antifog additive is contained at least in the base layer and in the first cover . layer. In the film the ratio between the thickness of the first cover layer and the thickness of the first intermediate layer is greater than 1 and lies between 1 and 2 and the surface tension of the face of the film belonging to the first cover layer is greater than the surface tension of the other face of the film belonging to the second cover layer.
Inventors:
GUIDA FILIPPO (IT)
MAZZAFERRO STEFANO (IT)
MAZZAFERRO STEFANO (IT)
Application Number:
PCT/EP2004/002442
Publication Date:
January 13, 2005
Filing Date:
March 10, 2004
Export Citation:
Assignee:
VIBAC SPA (IT)
GUIDA FILIPPO (IT)
MAZZAFERRO STEFANO (IT)
GUIDA FILIPPO (IT)
MAZZAFERRO STEFANO (IT)
International Classes:
B32B27/32; C09K3/18; (IPC1-7): B32B27/32; C09K3/18
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