Sheetlike composite, especially for dimensionally stable containers, with an outer thermoplastic sealing layer applied over part of the surface, especially for sealing a longitudinal seam

US11046056B2 · kind B2 · utility

Assignee

• SIG Technology AG · CH

Inventors

• Dirk Schibull · Baal, DE
• Michael Wolters · Heinsberg, DE

Key dates

• Filing date: Aug 12, 2016
• Grant date: Jun 29, 2021
• Expiry date: Jan 29, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M1/04
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a sheetlike composite (100) comprising a first composite region (101) and a second composite region (102); wherein the first composite region (101) comprises, as mutually superposed layers from an outer surface (104) of the first composite region (101) to an inner surface (103) of the first composite region (101): a) a thermoplastic layer A (110), b) a carrier layer (108), c) a barrier layer (106), and d) an inner polymer layer (105); wherein the outer surface (104) of the first composite region (101) is a surface of the thermoplastic layer A (110); wherein the second composite region (102) comprises, as mutually superposed layers from an outer surface (104) of the second composite region (102) to an inner surface (103) of the second composite region (102): A) a first thermoplastic layer B (109), B) the carrier layer (108); C) the barrier layer (106); and D) the inner polymer layer (105); wherein the outer surface (104) of the second composite region (102) is a surface of the first thermoplastic layer B (109); wherein the second composite region (102) does not comprise any part of the thermoplastic layer A (110); wherein a layer thickness (111) of the therm…