The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Dec. 01, 1999
Applicant:
Inventors:
Wolfgang Lohwasser, Gailingen, DE;
Olaf Frei, Siblingen, CH;
Olivier Y. Muggli, Louisville, KY (US);
Assignee:
Alcan Technology & Management Ltd., Neuhausen am Rheinfall, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/06 ;
U.S. Cl.
CPC ...
B05D 5/06 ;
Abstract
A process for manufacturing a packaging film that is transparent to UV light and has a barrier action against water vapor and gases. The packaging film includes a substrate film of a polyolefin or polyamide with a ceramic coating layer of SiO , where x is a number from 1.5 to 1.8. The thickness of the ceramic coating layer is 10 nm to 2 &mgr;m. The ceramic coating layer of SiO is deposited onto the polyolefin or polyamide substrate film using a vacuum thin film deposition process by depositing silicon oxide (SiO ) and elementary silicon (Si) simultaneously in vacuum.