US 12,441,533 B2
Recyclable ball can
Simon Brenneis, Wasserburg (DE)
Assigned to Head Technology GmbH, Kennelbach (AT)
Filed by Head Technology GmbH, Kennelbach (AT)
Filed on Oct. 5, 2022, as Appl. No. 17/938,179.
Claims priority of application No. 20 2021 003 146.4 (DE), filed on Oct. 7, 2021.
Prior Publication US 2023/0115825 A1, Apr. 13, 2023
Int. Cl. B65D 85/58 (2006.01); A63B 47/00 (2006.01)
CPC B65D 85/58 (2013.01) [A63B 47/00 (2013.01); B65D 2565/385 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A ball can comprising a can base and a can wall, wherein the can wall at least in one or more sections comprises a roughened surface and wherein, for marking the can, a layer of another material is applied to the can wall such that the surface roughened at least in one or more sections is at least partially exposed;
wherein the layer of another material has another density than the density of the ball can material, wherein a difference in density is at least 0.02 g/cm3;
wherein the ball can comprises polyethylene terephthalate;
wherein a roughness of the can wall is characterized by one or more of the following parameters: Ra at least 0.5 μm, Ra at least 1.0 μm, Ra at least 1.5 μm, Ra at least 2.0 μm, Rz at least 2.0 μm, Rz at least 4.0 μm, Rz at least 6.0 μm, Rz at least 8.0 μm, Rz at least 10.0 μm.