A continuous process for effecting gas liquid reactions
CA 2282601 A1 · Owner: Linde Aktiengesellschaft · Inventors: Fanelli, Pasquale
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 continuous process for the production of polyadducts of alkylene oxide on a chain initiator with at least one active hydrogen. The process is characterised in that it comprises the step of: (a) providing n reaction units constituted by a tubular reactor (11) and a heat , exchanger (14) downstream of the tubular reactor (11); (b) supplying the preheated chain initiator and the alkylene oxide to the reactor of the first reaction unit; (c) reacting the chain initiator with the alkylene oxide to obtain a first mixture; (d) cooling the first mixture by means of the heat exchanger (14); (e) supplying the reactor of the following reaction unit with 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
- Filed February 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2020.
- 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
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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.