Sig Technology Ag

Dirk Schibull

Michael Wolters

Andreas Lemsky

Ulrich Lemme

Peter Gregor

Norbert Herzog

Hannes Peßenteiner

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.

Sheetlike composite for producing dimensionally stable food and drink product containers having a polymer layer having a ratio of aromatic groups to carbonyl groups

The invention relates to a sheetlike composite () comprising a first composite region () and a second composite region (); wherein the first composite region () comprises, as mutually superposed layers from an outer surface () of the first composite region () to an inner surface () of the first composite region (): a) a thermoplastic layer A (), b) a carrier layer (), c) a barrier layer (), and d) an inner polymer layer (); wherein the outer surface () of the first composite region () is a surface of the thermoplastic layer A (); wherein the second composite region () comprises, as mutually superposed layers from an outer surface () of the second composite region () to an inner surface () of the second composite region (): A) a first thermoplastic layer B (), B) the carrier layer (); C) the barrier layer (); and D) the inner polymer layer (); wherein the outer surface () of the second composite region () is a surface of the first thermoplastic layer B (); wherein the second composite region () does not comprise any part of the thermoplastic layer A (); wherein a layer thickness () of the thermoplastic layer A () in the first composite region () is more than a layer thickness () of the first thermoplastic layer B () in the second composite region (). The invention further relates to a process of printing a sheetlike composite; to a container precursor; to closed containers; to a device for printing; and to use of a polyvinyl acetal.

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

The invention relates to a sheetlike composite () comprising a first composite region () and a second composite region (); wherein the first composite region () comprises, as mutually superposed layers from an outer surface () of the first composite region () to an inner surface () of the first composite region (): &#x2022;a) a thermoplastic layer A (), &#x2022;b) a carrier layer (), &#x2022;c) a barrier layer (), and &#x2022;d) an inner polymer layer (); wherein the outer surface () of the first composite region () is a surface of the thermoplastic layer A (); wherein the second composite region () comprises, as mutually superposed layers from an outer surface () of the second composite region () to an inner surface () of the second composite region (): &#x2022;A) a first thermoplastic layer B (), &#x2022;B) the carrier layer (); &#x2022;C) the barrier layer (); and &#x2022;D) the inner polymer layer (); wherein the outer () surface of the second composite region () is a surface of the first thermoplastic layer B (); wherein the second composite region () does not comprise any part of the thermoplastic layer A (); wherein a layer thickness () of the thermoplastic layer A () in the first composite region () is more than a layer thickness () of the first thermoplastic layer B () in the second composite region (). The invention further relates to a process of printing a sheetlike composite; to a container precursor; to a closed container; to a device for printing; and to use of a polyvinyl acetal.

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

The invention relates to a roll take-up device () designed for &#x2022; a) taking up a sheetlike composite (), and &#x2022; b) rolling up or unrolling or both rolling up and unrolling a roll () of the sheetlike composite (); &#x2022; i) a carrier layer (), &#x2022; ii) a barrier layer () and &#x2022; iii) an inner polymer layer (); wherein, in the roll (), at least 10 laminas of the sheetlike composite () are overlaid on one another from the inside outwards or vice versa; wherein the laminas respectively have the series of layers (); wherein one layer () of the series of layers of the sheetlike composite () is an electrically conductive layer.

Growing community of inventors

Baal, Germany

Dirk Schibull