Device or apparatus for preparing fibrous materials suitable for the manufacture of synthetic paper
CA 1114120 A · Owner: Montedison S.P.A. · Inventors: Di Drusco, Giovanni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DEVICE OR APPARATUS FOR PREPARING, FIBROUS MATERIALS SUITABLE FOR THE MANUFACTURE OF SYNTHETIC PAPER (Case FE.2502 ) Abstract of the Disclosure, Apparatus is disclosed for preparing fibrous materials suitable for manufacturing pulps for paper in accordance with, the mehod of extruding solutions emulsions and dispersions of, synthetic polymers in liquid media under flash conditions and under the action of a high-speed cutting fluid; said apparatus comprising:, (a) a pipe or channel for feeding the polymeric composition to be extruded; and, (b) at least one nozzle of the convergent-divergent type inserted, with at least a portion of its divergent section in such feeding channel, the …
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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 December 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 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.