Chipboard and method of laminating thin chipboards with sheet material
CA 1109382 A · Owner: Mende (Wilhelm) & Co. · Inventors: Schenz, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification describes chipboard having a lamination adhered on the surface thereof by means of an adhesive substance and a method for production thereof. The lamination consists of a sheet metal preferably sheet, aluminum. The method comprises the use of a press including a heated roll and a belt which is kept under tension and is partly looped around the roll. Thin chipboard and a sheet of non-thermoplastic material, preferably printed paper or textile fabric, lying on the side of the chipboard which faces the roll, is guided into the gap between the belt and the roll. At the same time thermoplastic material is introduced between the sheet and the chipboard. The thermoplastic …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.