Patent ID: 10300648

Abstract:
The production method for a polyolefin-based structure of the present invention produces a polyolefin-based structure from a mixed source material containing a polyolefin (A), an acid-modified polyolefin (B) and a gas barrier resin (C) using a molding machine 10, under the condition mentioned below. The molding machine 10 is equipped with a single-screw extruder 11, a die head 12, and an adaptor 13 for feeding the mixed source material from the single-screw extruder 11 to the die head 12. Am+10° C.≤T1≤Cm−10° C. (1), Cm−30° C.≤T2≤Cm+30° C. (2), Cm−10° C.≤T3≤Cm+50° C. (3), Cm−30° C.≤T4≤Cm+30° C. (4). T1 is a cylinder temperature in a section corresponding to a supply zone 21A and a compression zone 21B, T2 is a cylinder temperature in a section corresponding to a metering zone 21C, T3 is a temperature of an adaptor 13, T4 is a temperature of a die head, Am is the melting point of the component (A), and Cm is the melting point of the component (C).