MANUFACTURING OF BLOW-MOLDED STRUCTURES FOR TEMPERATURE CONTROL MEDIA
A method for producing blow-molded structures where a preform is provided that encloses a cavity and has a preform wall limiting the cavity. The preform is placed into a blow mold and formed to a blow-molded structure, wherein the blow-molded structure has a structural wall. The preform wall or structural wall comprises an inner layer and an outer layer.
1 . A method for producing blow-molded structures, wherein a preform is provided, wherein the preform encloses a cavity and has a preform wall defining the cavity, wherein the preform is introduced into a blow mold and formed to a blow-molded structure, the blow-molded structure having a structural wall, and wherein the preform wall or the structural wall comprises an inner layer and an outer layer.
2 . The method according to claim 1 , wherein the structural wall is formed from the preform wall, wherein preferably the inner layer of the structural wall is formed from the inner layer of the preform wall and/or the outer layer of the structural wall is formed from the outer layer of the preform wall.
3 . The method according to claim 1 , wherein the inner layer of the preform wall or the structural wall comprises a polypropylene.
4 . The method according to claim 1 , wherein the preform wall or structural wall comprises at least 30 to 50 wt. % of a polyolefin.
5 . The method according to claim 1 , wherein the preform wall or structure wall comprises only two layers.
6 . The method according to claim 1 , wherein the blow-molded structure or preform has an exterior layer, wherein the exterior layer surrounds the outer layer.
7 . The method according to claim 1 , wherein the preform is a coextruded tube.
8 . The method according to claim 1 , wherein the blow-molded structure comprises at least three outlets.
9 . A blow-molded structure, wherein the blow-molded structure is produced by the method according to claim 1 .
10 . Use of a blow-molded structure produced according to claim 1 for guiding a temperature control medium, wherein the temperature control medium comprises water or an oil.