Title:
MULTILAYER POLYMERIC FILMS
Document Type and Number:
WIPO Patent Application WO2002087873
Kind Code:
A3
Abstract:
The use of multilayer film structure comprising at least two unfilled layers of polymeric material substantially devoid of opacifying agent and at least two filled layers of polymeric material wherein said filled layers comprise at least 5 % by weight of opacifying agent for providing improved tear-resistance in an opaque polymeric film, particularly a polyester film.
Inventors:
MACKERRON DUNCAN HENRY (GB)
FRIEND JULIA ELIZABETH (GB)
FRIEND JULIA ELIZABETH (GB)
Application Number:
PCT/GB2002/001910
Publication Date:
January 09, 2003
Filing Date:
April 25, 2002
Export Citation:
Assignee:
DUPONT TEIJIN FILMS US LTD (US)
MACKERRON DUNCAN HENRY (GB)
FRIEND JULIA ELIZABETH (GB)
MACKERRON DUNCAN HENRY (GB)
FRIEND JULIA ELIZABETH (GB)
International Classes:
B32B27/20; B32B27/36; (IPC1-7): B32B27/36; B32B27/20
Domestic Patent References:
| WO1997037849A1 | 1997-10-16 |
Foreign References:
| EP0933199A1 | 1999-08-04 | |||
| EP0497483A1 | 1992-08-05 | |||
| EP0514098A2 | 1992-11-19 | |||
| EP0592284A2 | 1994-04-13 |
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