BASE MATERIAL FOR PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET, PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET USING THE BASE MATERIAL, AND PROCESS OF PRODUCING THE BASE MATERIAL

摘要

A base material comprises a polyolefin based resin as a major component, and the material is formed by rolling via a calender device (1) having motors (2) or speed regulators for individually changing a rotational speed of each calender roll (2a). The motors or speed regulators individually drive or regulate their respective calender rolls. The base material further comprises an inorganic compound. An independent claim is included for producing the base material.