EP 0671993 A1 19950920 - BIAXIALLY ORIENTED COPOLYESTER FILM FOR MAGNETIC RECORDING DISKS AND MAGNETIC RECORDING DISKS MADE THEREFROM.
Title (en)
BIAXIALLY ORIENTED COPOLYESTER FILM FOR MAGNETIC RECORDING DISKS AND MAGNETIC RECORDING DISKS MADE THEREFROM.
Title (de)
BIAXIAL ORIENTIERTE COPOLYESTERFOLIE FÜR MAGNETISCHE AUFZEICHNUNGSPLATTEN UND DARAUS HERGESTELLTE AUFZEICHNUNGSPLATTEN.
Title (fr)
FILM DE COPOLYESTER ORIENTE BIAXIALEMENT POUR DISQUES MAGNETIQUES SON, ET DISQUES MAGNETIQUES SON FABRIQUES A PARTIR DE CELUI-CI.
Publication
Application
Priority
US 9210687 W 19921209
Abstract (en)
[origin: WO9413470A1] Disclosed herein is a biaxially oriented PENBB film for magnetic recording disks having low water absorption, low shrinkage and high modulus. The film typically is 60-100 microns thick. One surface of the film preferably is very smooth. PENBB as mentioned herein is a copolyester containing units of formula (I).
IPC 1-7
IPC 8 full level
B29C 55/12 (2006.01); B32B 27/36 (2006.01); C08J 5/18 (2006.01); G11B 5/73 (2006.01); B29K 67/00 (2006.01); B29L 7/00 (2006.01); B29L 9/00 (2006.01)
CPC (source: EP US)
C08J 5/18 (2013.01 - EP US); G11B 5/73929 (2019.04 - EP US); G11B 5/73931 (2019.04 - EP US); C08J 2367/02 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB IT LU NL
DOCDB simple family (publication)
WO 9413470 A1 19940623; EP 0671993 A1 19950920; EP 0671993 A4 19950801
DOCDB simple family (application)
US 9210687 W 19921209; EP 93901394 A 19921209