Process for synthesising carbonic acid esters deriving from unsaturated alcohols and polyhydric alcohols
CA 1183862 A · Owner: Anic S.P.A. · Inventors: Romano, Ugo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The application relates to a process for synthesising unsaturated carbonic acid esters from polyhydric alcohols which are reacted with alkyl carbonates and unsaturated alcohols in the presence of a basic catalyst which can be, chosen from sodium hydroxide sodium carbonate, sodium, alcoholate, organic bases and basic ion exchange resins.
Read the whole patent
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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
- 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.