| abstract |
composite in sheet form, method, container precursor, container and use. the invention relates to a sheet-shaped composite comprising, as mutually overlapping layers in a direction from an outer face of the sheet-shaped composite to an inner face of the sheet-shaped composite, a) a backing layer , and b) a barrier layer; wherein the sheet-shaped composite further comprises a layer of polymer p, wherein the layer of polymer p, a. comprises a polyester, b. extends two-dimensionally within a layer plane, c. has a first modulus of elasticity in a direction of the first ply lying in the ply plane, and d. has an additional modulus of elasticity in a direction of the additional ply that lies in the ply plane and is perpendicular to the direction of the first ply; where the ratio of the first modulus of elasticity to the additional modulus of elasticity is within a range of 0.81 to 1.19. the invention further relates to methods of producing a composite in sheet form, a container precursor, a container, and the products of the method mentioned above; to a container precursor and a container, each comprising at least one sheet-shaped region of the sheet-shaped composite; and to uses of the composite in sheet form, an extruder, a chain modifier, a blend, a base polymer and polyesters. |