MANUFACTURING METHOD OF INFLATION FILM

Title:

MANUFACTURING METHOD OF INFLATION FILM

Document Type and Number:

Japanese Patent JP2007083561

Kind Code:

A

Abstract:

To provide a manufacturing method of an inflation film composed of an ethylene/α-olefin copolymer which allows stable high-speed formation at low temperatures.

The method is for manufacturing an inflation film composed of an ethylene/α-olefin copolymer. It employs an ethylene/α-olefin copolymer meeting the condition (A): MTV(150)/MTV(190)≥0.6 (wherein MTV(150) is the maximum picking speed, m/min, measured at 150°C; and MTV(190) is that measured at 190°C). It comprises melting and kneading the copolymer in an extruder and carrying out extrusion inflation molding by use of a circular die with a lip gap set to be 0.4-2.5 mm.

Inventors:

YANASE KOICHI

Application Number:

JP2005275321A

Publication Date:

April 05, 2007

Filing Date:

September 22, 2005

Export Citation:

Click for automatic bibliography generation Help