Sheetlike composite, especially for production of dimensionally stable food or drink product containers, comprising a polymer layer P having an L value

US12115763B2 · kind B2 · utility

Assignee

• SIG SERVICES AG · CH

Inventors

• Roland Bothor · Aachen, DE
• Markus Raue · Aachen, DE

Key dates

• Filing date: Jul 12, 2018
• Grant date: Oct 15, 2024
• Expiry date: Jul 12, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2439/70
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a sheetlike composite comprising, as mutually superposed layers in a direction from an outer face of the sheetlike composite to an inner face of the sheetlike composite, a) a carrier layer, and b) a barrier layer; wherein the sheetlike composite additionally includes a polymer layer P comprising a first polymer; wherein the polymer layer P has an L value in the L*a*b* colour space within a range from 30 to 56. The invention further relates to methods of producing a sheetlike composite, a container precursor and a closed container and to the aforementioned method products; to a container precursor and a closed container each including at least one sheetlike region of the sheetlike composite; to uses of the sheetlike composite for production of a food or drink product container and in a microwave oven; and to uses of compositions for production of a sheetlike composite for a food or drink product container.