CA1325090C - Pellicule multicouche comprenant une couche de polyethylene a tres faible densite
- Google Patents
Pellicule multicouche comprenant une couche de polyethylene a tres faible densite
Info
Publication number
CA1325090C
CA1325090CCA000616430ACA616430ACA1325090CCA 1325090 CCA1325090 CCA 1325090CCA 000616430 ACA000616430 ACA 000616430ACA 616430 ACA616430 ACA 616430ACA 1325090 CCA1325090 CCA 1325090C
Authority
CA
Canada
Prior art keywords
layer
film
low density
barrier
density polyethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cryovac LLC
Original Assignee
WR Grace and Co Conn
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/728,428external-prioritypatent/US4640856A/en
Application filed by WR Grace and Co ConnfiledCriticalWR Grace and Co Conn
Priority to CA000616430ApriorityCriticalpatent/CA1325090C/fr
Application grantedgrantedCritical
Publication of CA1325090CpublicationCriticalpatent/CA1325090C/fr
Pellicule d'emballage thermoplastique multi-couches; sacs obtenus a l'aide de ladite pellicule constituee de deux couches de polyethylene de tres faible densite