Method of generating acrolein
CA 1305490 C · Owner: Betz Laboratories, Inc. · Inventors: Mcdaniel, Cato R.; Bockowski, Edmund J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to the generation of acrolein from an acetal of acrolein via exposure to a sulfonic acid reusable catalytic material. The acrolein acetals have the following general structures;, CH2 = , where R may or may not be equal to R' and R/R' is an alkyl group having from 1 to 6 carbons; and, CH2 = where R is a cyclic diol derived from ethylene glycol propylene, glycol, butylene glycol, pentylene glycol hexylene glycol, glycerol, hexoses or polysaccharides.
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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
- 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.