EP 1203039 A1 20020508 - BIODEGRADABLE ORIENTED AROMATIC POLYESTER FILM AND METHOD OF MANUFACTURE
Title (en)
BIODEGRADABLE ORIENTED AROMATIC POLYESTER FILM AND METHOD OF MANUFACTURE
Title (de)
BIOABBAUBARE, ORIENTIERTE AROMATISCHE POLYESTER FILME UND HERSTELLUNGSVERFAHREN
Title (fr)
FILM POLYESTER AROMATIQUE ORIENTE BIODEGRADABLE ET PROCEDE DE FABRICATION
Publication
Application
Priority
- JP 22566099 A 19990809
- US 0021584 W 20000808
Abstract (en)
[origin: WO0110928A1] The present invention relates to an oriented aromatic polyester film and a method of manufacture thereof. The film is biodegradable, transparent and heat-sealable, and has excellent mechanical properties. The film comprises an acid component that is about 50 to 90 mol % terephthalic acid, about 0.2 to 6 mol % sulfonic acid metal salt, and about 4 to 49.8 mol % aliphatic dicarboxylic acid; and a glycol component that is about 50 to 99.9 mol % ethylene glycol and about 0.1 to 50 mol % diethylene glycol. The film has an impulse seal strength and a high-frequency seal strength of at least 3 N/15 mm. In addition, the film also has low moisture vapor transmission, oxygen transmission and carbon dioxide transmission, and has ultrasonic sealability.
IPC 1-7
IPC 8 full level
C08G 63/688 (2006.01); C08J 5/18 (2006.01); C08G 63/672 (2006.01)
CPC (source: EP)
C08G 63/6886 (2013.01); C08J 5/18 (2013.01); C08G 63/672 (2013.01); C08J 2367/04 (2013.01)
Citation (search report)
See references of WO 0110928A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0110928 A1 20010215; AU 6528600 A 20010305; AU 781686 B2 20050609; CA 2378230 A1 20010215; EP 1203039 A1 20020508
DOCDB simple family (application)
US 0021584 W 20000808; AU 6528600 A 20000808; CA 2378230 A 20000808; EP 00952623 A 20000808