Method and apparatus for producing panels, strips, panel-like mouldings or sections from plastics
CA 1323975 C · Owner: Deutsche Solvay-Werke Gesellschaft Mit Beschrankter Haftung · Inventors: Kaufer, Helmut; Munnich, Janos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and an apparatus for producing panels, strips, panel-like forms or sections from plastics preferably thermoplastics, of high mechanical strength based upon, molecular orientation by roll-press-stretching within the roll-gap between at least one pair of pressure- or compression-rolls at roll-, and material-temperatures below the crystallite melting point or the softening temperature of the plastic and above 303 K under press-, stretching, the roll-press-stretching of the panels strips, panel-like, forms or sections being carried out at the same or nearly the same, peripheral velocity of the pressure- or compression-rolls or without, friction, at …
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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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
- 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.