Search International and National Patent Collections

1. (WO2018197595) BARRIER FILM

Pub. No.:    WO/2018/197595    International Application No.:    PCT/EP2018/060669
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: C23C 16/26
C23C 16/40
Applicants: TETRA LAVAL HOLDINGS & FINANCE S.A.
Inventors: LARRIEU, Jerome
FAYET, Pierre
Title: BARRIER FILM
Abstract:
Barrier film for use in laminated packaging materials for liquid food products, comprising a polymer film substrate (11) and coated onto a first side of the polymer film substrate, by plasma-enhanced chemical vapour deposition (PECVD) in a vacuum process, a first coating layer (13) of silicon oxide having the general composition formula SiOxCy, wherein x is from 1.5 to 2.2, and y is from 0.15 to 0.8, and a second coating layer (12) of an amorphous diamond-like carbon (DLC), which is directly adjacent and contacting the first coating layer, the barrier film providing gas and water vapour barrier properties and mechanical durability in a packaging material and packages made thereof.