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:
Feb. 13, 2024
Filed:
Jun. 17, 2019
Innovative Systems ET Technologies (Isytech), Lannion, FR;
Nasser Beldi, Trebeurden, FR;
Fabrice Oge, Lannion, FR;
Patrick Chollet, Lannion, FR;
Mikaël Jaouen, Tébeurden, FR;
INNOVATIVE SYSTEMS ET TECHNOLOGIES (ISYTECH), Lannion, FR;
Abstract
Method for treating in an enclosure an inner surface of a container made from polymer material, in order to deposit a barrier coating there on, comprises: inserting the container into the enclosure; introducing a precursor gas into the container intended, once transformed into the plasma state, to be deposited at least partially on the inner surface of the container in order to constitute the coating; wherein the method further comprises: transforming the precursor gas into the plasma state by a combination of excitations comprising a main excitation by means of electromagnetic waves comprising microwaves, and a secondary excitation by means of an electrical discharge of alternating voltage having a frequency between 1 kHz and 15 MHz.