Manufacture of mouldings by means of the automatic pressure gelling technique
CA 2201584 A1 · Owner: Kainmuller, Thomas · Inventors: Kainmuller, Thomas; Flury, Peter; Behm, Dean Tallak
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the manufacture of mouldings by means of the automatic pressure gelling technique in which a curable composition that comprises at least one epoxy compound having on average more than one epoxy group per molecule and an initiator for the cationic polymerisation is heated to a temperature of from 30 to 55°C and introduced into a mould having a temperature of from 80 to 120°C that is high enough to initiate thermal curing of the composition, and the composition remains in that mould being cured, until the moulding, has solidified to such an extent that it can be demoulded curable composition continuously, being fed under pressure into the mould while the moulding is being cured, …
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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
- Filed April 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2019.
- 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.