FIELD: chemical engineering.
SUBSTANCE: invention relates to method ensuring either selection, modification of existing and/or creation of new developed polymeric articles on the basis of complex polyester which may enable improved reaction on local shift and/or tensile strain inside melt of polymer on the basis of complex polyester under injection-stretch-blow-molding (ISBM). Besides, disclosed is method for producing polymeric article including molding of melted polymer on the basis of complex polyester in mold for premold for its transformation into premold when applying shift and/or tensile strain in relation to melt of polymer on the basis of complex, with shift and/or tensile strain applied to melt of polymer on the basis of complex polyester envisaging selective modification of flow track of melted polymer depending on profile of local pressure throughout at least a part of flow track, with said profile of local pressure being determined depending on optimized melting reaction of polymer on the basis of complex polyester on applied shift and/or tensile strain throughout at least said part of flow.
EFFECT: invention enables improved reaction on local shift and/or tensile strain inside melt of polymer on the basis of complex polyester under injection-stretch-blow-molding (ISBM).
13 cl, 2 dwg, 2 tbl
