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:
Jul. 16, 2013
Filed:
Nov. 02, 2006
Pierre Fayet, Lausanne, CH;
Torsten Olofsson, Romont, CH;
Hans-jurgen Tiller, Jena, DE;
Thomas Richter, Jena, DE;
Pierre Fayet, Lausanne, CH;
Torsten Olofsson, Romont, CH;
Hans-Jurgen Tiller, Jena, DE;
Thomas Richter, Jena, DE;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
A web of a polymer film () is coated with an oxide layer, in particular with an SiObarrier layer, by transporting the web with the aid of a rotatable drum () through a plurality of flame bands, which are directed in a radial direction from above against the circumferential surface of the drum, which extend at a distance from each other across the width of the web being supported and transported on this circumferential surface, and which are fed with a gas mixture including a combustible gas, an oxidant, and a silicon containing compound. Therein the circumferential surface of the rotatable drum is cooled to a predetermined temperature and the web is transported through the area of the tip of the inner flame region. Polymer films with barrier layers produced in the named way have at small layer thicknesses of less than 10 nm very good barrier properties.