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COMPOSITE EN FORME DE FEUILLE, EN PARTICULIER POUR LA PRODUCTION DE RÉCIPIENTS DE PRODUITS ALIMENTAIRES ET DE BOISSONS DE DIMENSIONS STABLES, AYANT UNE ZONE DE TOIT FORMÉE D'UNE MULTITUDE DE LIGNES DE RAINURE AYANT UNE COURBURE PARTIELLEMENT CONVEXE
COMPOSITE EN FORME DE FEUILLE, EN PARTICULIER POUR LA PRODUCTION DE RÉCIPIENTS DE PRODUITS ALIMENTAIRES ET DE BOISSONS DE DIMENSIONS STABLES, AYANT UNE ZONE DE TOIT FORMÉE D'UNE MULTITUDE DE LIGNES DE RAINURE AYANT UNE COURBURE PARTIELLEMENT CONVEXE
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摘要
The present invention relates to a sheetlike composite comprising, as mutually superposed layers, a) a carrier layer, b) a barrier layer, and c) an inner polymer layer, wherein the sheetlike composite has a multitude of groove lines arranged and configured such that, by folding the sheetlike composite along the groove lines and joining seam areas of the sheetlike composite thereby obtaining seams, a closed container is obtainable, wherein the closed container has a roof area, wherein a first portion of the groove lines of the multitude of groove lines at least partly forms a circumference of a first part-area of the roof area, wherein the groove lines of the first portion, relative to the first part-area of the roof area, have at least partly convex curvature, wherein the first part-area of the roof area has a first length in a longitudinal direction and has a second length in a circumferential direction at right angles to the longitudinal direction, wherein a ratio of the first length to the second length is in a range from 0.2 to 2.0. 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 further container precursor; to a further closed container; and to a use of the sheetlike composite.
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