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:
Sep. 01, 1998
Filed:
Mar. 26, 1997
Jacques Laurent, Blonay, CH;
Tetra Laval Holdings & Finance, S.A., Pully, CH;
Abstract
A process for creating a SiOx barrier layer on the interior wall of a container is disclosed in the present invention. A gas mixture consisting of an organosilicon precursor gas, an oxidizer gas and a carrier gas is introduced into a polymeric container. The gas mixture is then irradiated with ultraviolet light to create a reaction within the container. The reacted gas then coats the interior wall of the container with a SiOx barrier layer. The remainder of the gas mixture is then purged from the container. The gas mixture may also be utilized to blow mould a container. The polymeric container may be composed of polyethylene, polypropylene, copolymers of polypropylene, copolymers of polyethylene, polyethylene terphthalate, copolymers of polyethylene terphthalate or mixtures thereof. An excimer ultraviolet lamp is preferred to irradiate the gas mixture inside of the container. The process may be performed at a station on a manufacturing line, or at an off-line site.