A method for producing a container (30), a bottle (30) for storing and optionally applying a liquid composition, solvent-containing composition, comprising an elastic multi-layer wall (20) at least in part to completely, wherein the method comprises the method steps of:
- 1) a)
- Providing each a granulate or a mixture of granulates to form an inner layer (21) and/or outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24);
- Forming an extrudate to form an inner layer (21) and/or outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24);
- Mixing at least one extrudate to form an inner layer (21) and/or outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24) with inert gas and/or carbon dioxide, and obtaining an extrudate comprising inert gas and/or carbon dioxide, and
- b)
- Providing a granulate of ethylene vinyl alcohol copolymer or cyclic olefin copolymers (COC),
- Forming an extrudate of ethylene vinyl alcohol copolymer or cyclic olefin copolymers (COC), and
- c)
- Providing a granulate of a thermoplastic polymer,
- Forming an extrudate from the thermoplastic polymer, and
- d) Coextrusion blow moulding of a hose having an elastic multi-layer wall (20) from the extrudates a) and b) and c) having the layer design from the inside out:
- inner layer, barrier layer, outer layer, in a blowing tool or inserting the hose into a blowing tool, followed by the steps of
- e) Disconnecting or detaching the hose having an elastic multi-layer wall,
- f) Blowing up the hose provided in the blowing tool having an elastic multi-layer wall to be a container having an elastic multi-layer wall, a bottle, the elastic multi-layer wall of the container having
- (i) an outer layer (23)
- a) made of the extrudate comprising inert gas and/or carbon dioxide to form an outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24) or
- b) made of an extrudate of a thermoplastic elastomer,
- (ii) a barrier layer (22) made of the extrudate of ethylene vinyl alcohol copolymer or cyclic olefin copolymers (COC), and
- (iii) an inner layer (21)
- a) made of the extrudate comprising inert gas and/or carbon dioxide to form an outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24), or
- b) made of an extrudate of a thermoplastic polymer, of a thermoplastic elastomer, the elastic multi-layer wall of the container (30) comprising from the inside out an inner layer, barrier layer and an outer layer, at least one inner or outer layer or inner and outer layer have a microcellular structure (24), and
- f) Obtaining a container (30), a bottle (30), having an elastic multi-layer wall (20), or
- 2) a) (i) Extrusion blow moulding of an outer layer (23) of the container (30), of the bottle (30), a) from the extrudate to form an outer layer (23) of an elastic multi-layer wall (20) having a microcellular structure (24), or b) from an extrudate of a thermoplastic polymer, from a thermoplastic elastomer to form an inner layer (21) of an elastic multi-layer wall (20),
- (ii.1) Providing an extrudate of ethylene vinyl alcohol copolymer or cyclic olefin copolymers (COC),
- (ii.2) Extrusion blow moulding of a barrier layer (22) from the extrudate of ethylene vinyl alcohol copolymer or cyclic olefin copolymers (COC), and
- (iii) Extrusion blow moulding of an inner layer (21) of the container, the bottle (30), from
- a) the extrudate comprising inert gas and/or carbon dioxide to form an inner layer (21) of an elastic multi-layer wall (20) having a microcellular structure (24), or
- b) from an extrudate of a thermoplastic polymer, from a thermoplastic elastomer to form an inner layer (21) of an elastic multi-layer wall (20),
- and obtaining a container (30), a bottle (30) having an elastic multi-layer wall (20).