Patent ID: 8679601

Claim:
A film tubing ( 2 ) as intermediate product for a medical container ( 1 ), the film tubing ( 2 ) comprising a lower-viscosity raw polymer component having a first melt viscosity with a K-value between 50 and 70, and a second raw polymer component having a second melt viscosity higher than the first melt viscosity with the second melt viscosity having a K-value between 60 and 100, wherein said film tubing ( 2 ) is produced from a flexible plastic material, and the film tubing ( 2 ) is produced according to a method comprising the following steps: producing ( 7 ) a plastic compound from a heterogeneous mixture of the first, lower-viscosity raw polymer component and the second, higher-viscosity raw polymer component; forming a single-layer extrudate having a structured surface by extruding ( 8 ) the plastic compound; wherein the extruded film tubing has a single layer having a structured surface having regions consisting of the lower-viscosity raw polymer component and regions consisting of second raw polymer component, wherein the structured surface has a cross-sectional thickness variation along a length thereof.