Robust planar composite with an intermediate layer of increased vicat softening temperature

US9902124B2 · kind B2 · utility

Assignee

• SIG Technology AG · CH

Inventors

• Michael Wolters · Heinsberg, DE
• Stefan Pelzer · Gütersloh, DE

Key dates

• Filing date: Jul 23, 2012
• Grant date: Feb 27, 2018
• Expiry date: Jun 27, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24942
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present invention generally relates to a sheetlike composite (3) comprising a layer configuration with the following layers: 0. optionally a layer of thermoplastic KSu (13); 1. a carrier layer (4); ii. a first layer of thermoplastic KSv (35); iii. a barrier layer (5); iv. a second layer of thermoplastic KSa (6); v. at least one further layer of thermoplastic KSw (7); wherein the Vicat softening temperature of the layer of thermoplastic KSv (35) and the Vicat softening temperature of the layer of thermoplastic KSa (6) is in each case higher than the Vicat softening temperature of the layer of thermoplastic KSw (7). The present invention furthermore relates to a process for the production of the sheetlike composite, a container which surrounds an interior and comprises at least one such sheetlike composite, and a process for the production of this container.