Barrier-Coated Cellulose-Based Substrate, Laminated Packaging Material And Packaging Container Comprising The Cellulose-Based Substrate
Patent No. EP4008548 (titled "Barrier-Coated Cellulose-Based Substrate, Laminated Packaging Material And Packaging Container Comprising The Cellulose-Based Substrate") was filed by Tetra Laval & Finance on Nov 26, 2021. The application was issued on Jun 4, 2025.
Patent Summary
A barrier-coated paper or cellulose-based substrate for packaging applications, comprising a base layer pre-coating, a barrier pre-coating, and a barrier deposition coating. The base layer pre-coating is applied by dispersion coating and provides a homogeneous surface for the barrier pre-coating. The barrier pre-coating is also applied by dispersion coating and is typically a vinyl alcohol polymer or copolymer. The barrier deposition coating is applied by vapour deposition and provides the primary barrier properties. The substrate is suitable for use in laminated packaging materials for liquid food products, particularly for aseptic packaging applications.
Patent Family
Patent Oppositions (4)
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP4008548
- Application Number
- EP21210810A
- Filing Date
- Nov 26, 2021
- Status
- Granted And Under Opposition
- May 2, 2025
- Publication Date
- Jun 4, 2025
- External Links
- Slate, Register , Google Patents