FIELD: technological processes.
SUBSTANCE: method for making multilayer polymer item, which represents hollow polymer element and includes at least one reinforcing layer comprising oriented polymer and at least one main layer of polymer, which is in direct contact with at least part of reinforcing layer, where polymer of the main layer is compatible with oriented polymer of reinforcing layer, and has the same melt temperature. Method includes the following stages: (a) application of the main polymer layer in the form of melt polymer jet onto at least part of reinforcing layer surface, and (b) hardening of melt polymer onto surface of reinforcing layer by means of fast cooling, besides reinforcing layer is applied by winding of strengthened polymer tape, which consists of oriented polymer, around hollow polymer element, and the main layer of polymer is applied over reinforcing layer.
EFFECT: elimination of considerable damage of fibrous structure inside oriented polymer due to bringing hard layer of oriented polymer into direct contact with flow of melt polymer, if the latter is exposed to fast cooling.
6 cl, 3 ex
