Decolorization of glycosides
CA 1301752 C · Owner: Henkel Corporation · Inventors: Short, Rolland W.P.; Glor, Paul R.; Mcdaniel, Robert S. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a process for reducing the color of a glycoside composition, which process comprises contacting a glycoside composition containing colored humins having conjugated unsaturation with hydrogen or a source of hydrogen under hydrogenation conditions for a sufficient time to decrease the color thereof and thereafter recovering the glycoside composition of reduced color. Hydrogenation may be carried out by use of an alkali metal aluminum hydride such as lithium aluminum hydride or an alkali metal borohydride such as sodium, borohydride, or by means of catalytic hydrogenation using a catalyst of nickel, platinum or palladium. The color reduced glycoside is useful as a …
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, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.