Abstract: The invention relates to a sheetlike composite comprising, as layers of a layer sequence in the direction from an outer face of the sheetlike composite to an inner face of the sheetlike composite, a) a first polymer layer, b) a carrier layer, and c) a barrier layer, wherein the first polymer layer is characterized by a ratio of a proportion of aromatic groups in the first polymer layer to a proportion of carbonyl groups in the first polymer layer in a range from 0.18 to 0.34. The invention further relates to processes for producing a sheetlike composite, a container precursor and a closed container and to the aforementioned process products; to a further container precursor; to a further closed container; and to uses of the sheetlike composite, of a hardener and of a printing ink.

Abstract: The invention relates to a method (100) comprising, as method steps, a) providing i) a sheetlike composite (300) comprising, as mutually superposed layers, A) a carrier layer (303), B) a barrier layer (305), and C) an inner polymer layer (306), ii) n components (603, 605, 607), where, for every i from 1 to n, A) the ith component (603, 605, 607) comprises an ith component surface (801), and B) the ith component surface (801) comprises a multitude of recesses (802), wherein the recesses (802) each comprise a composition (803) comprising a colourant, wherein then components (603, 605, 607) rotate in one method direction, wherein, for every i from 1 to (n?1), the (i+1)th component (603, 605, 607) is arranged after the ith component (603, 605, 607) in the method direction; and b) moving the sheetlike composite (300), such that a first region of the sheetlike composite (300) runs through the following sequence of steps comprising steps b) i) (103, 105) and b) ii) (104, 106) successively for every i from 1 to n in

Abstract: The invention relates to a sheetlike composite comprising, as layers of a layer sequence in the direction from an outer face of the sheetlike composite to an inner face of the sheetlike composite, a) a first polymer layer, b) a carrier layer, and c) a barrier layer, wherein the first polymer layer is characterized by a ratio of a proportion of aromatic groups in the first polymer layer to a proportion of carbonyl groups in the first polymer layer in a range from 0.18 to 0.34. The invention further relates to processes for producing a sheetlike composite, a container precursor and a closed container and to the aforementioned process products; to a further container precursor; to a further closed container; and to uses of the sheetlike composite, of a hardener and of a printing ink.

Abstract: The present invention relates to a method comprising as method steps: a) providing a sheetlike composite precursor comprising a carrier layer; b) overlaying the sheetlike composite precursor on an outer face of the sheetlike composite precursor with a liquid first polymer composition; c) hardening the liquid first polymer composition, thereby obtaining a first polymer layer; and d) overlaying the sheetlike composite precursor on the outer face of the sheetlike composite precursor with a liquid second polymer composition; wherein the first polymer layer in method step d) comprises an isocyanate content in a range from 0.1% to 50% by weight, based on the weight of the first polymer layer. The invention further relates to a sheetlike composite obtainable by the method; a container precursor and a closed container, each comprising the sheetlike composite; and to uses of a liquid primer and the sheetlike composite.