US 2003/0143336 A1 · Method for trimming resin film

Abstract

The present invention provides a method for trimming a resin film which can recycle lug portions of the resin film after trimming, can easily trim the resin film even when the resin film is made of resin which becomes fragile by cooling, and enhance the use efficiency of a laminated sheet by making resin coated portions disposed at both sides of the laminated sheet thin. At the time of coating molten resin at least on one surface of a substrate to form a resin film after making the molten resin pass between coating rolls, the lug portions of the resin film are trimmed before the lug portions of the resin film are cooled.

Claims8

Dependent claims

A method for trimming a resin film characterized in that, at the time of coating molten resin at least on one surface of a substrate to form a resin film after allowing the substrate and the molten resin to pass through a nip portion between coating rolls, lug portions of the resin film are trimmed before the lug portions are cooled.

Dependencies are inferred from the claim text.

Facts

Application

10/058,235Filed 29 Jan 2002

Published

31 Jul 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

B32B 37/153
With at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and…: at…
B26F 3/02
Severing by means other than cutting; Apparatus therefor: tearing
B32B 15/08
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 38/0004
Ancillary operations in connection with laminating processes: cutting, tearing or severing, e.g. bursting; Cutter details

Method for trimming resin film

Life of this patent

Method for trimming resin film

Life of this patent

Abstract

Claims8