EP 1144178 A1 20011017 - PROCESS FOR THE MANUFACTURE OF A HEAT-SHRINKABLE, POLYETHYLENE MONO-LAYER FILM
Title (en)
PROCESS FOR THE MANUFACTURE OF A HEAT-SHRINKABLE, POLYETHYLENE MONO-LAYER FILM
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER WÄRMSCHRUMPFBAREN, EINSCHICHTIGEN POLYETHYLENFOLIE
Title (fr)
PROCEDE POUR LA FABRICATION D'UNE PELLICULE DE POLYETHYLENE, MONOCOUCHE, THERMORETRACTABLE
Publication
Application
Priority
- EP 00900215 A 20000111
- EP 0000127 W 20000111
- EP 99100787 A 19990118
Abstract (en)
[origin: WO0041872A1] A process of manufacturing a heat-shrinkable polyethylene mono-layer film with a thickness variation of less than 20 %, preferably less than 18 % and even more preferably less than 15 %, which process comprises extrusion of the film resin through a flat die, quenching of the cast extruded sheet, irradiation thereof, re-heating to the suitably selected orientation temperture and stretching of the irradiated sheet. Preferably the polyethylene comprises an ethylene- alpha -olefin copolymer. The heat-shrinkable polyethylene mono-layer irradiated film with a thickness variation of less than 20 %, preferably less than 18 % and even more preferably less than 15 % is also claimed.
IPC 1-7
IPC 8 full level
B29C 55/12 (2006.01); B29C 61/06 (2006.01); C08J 7/00 (2006.01); B29C 35/08 (2006.01); B29K 23/00 (2006.01); B29L 7/00 (2006.01)
CPC (source: EP)
B29C 55/12 (2013.01); B29C 35/08 (2013.01); B29K 2023/0625 (2013.01)
Citation (search report)
See references of WO 0041872A1
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 0041872 A1 20000720; AU 1983900 A 20000801; BR 0007594 A 20011127; CA 2359323 A1 20000720; EP 1144178 A1 20011017; JP 2002534297 A 20021015; NZ 512959 A 20031031
DOCDB simple family (application)
EP 0000127 W 20000111; AU 1983900 A 20000111; BR 0007594 A 20000111; CA 2359323 A 20000111; EP 00900215 A 20000111; JP 2000593465 A 20000111; NZ 51295900 A 20000111