Manufacture of acetals
CA 1101880 A · Owner: Basf Aktiengesellschaft · Inventors: Kaibel, Gerd; Nissen, Axel
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 acetals by reacting aliphatic aldehydes with aliphatic alcohols especially olefinically unsaturated aldehydes and allyl alcohols, in the presence of nitric acid using a recti-, fying column as the reaction vessel. The products may be used as starting materials for plastics active, substances, scents and vitamins.
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 May 26, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.