← Back to Patent Explorer
EP0232202A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for the oxidation of di-, tri-, oligo- and polysaccharides into polyhydroxycarboxylic acids, the catalyst used and the products so obtained

Assignee: Roquette Freres SA
•
Filing: 1987-01-29
•
Granted: —
•
Expires: 2007-01-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from French Procédé d'oxydation sélective de di-, tri-, oligoet polysaccharides comportant une fonction terminale réductrice du type aldose en acides polyhydroxycarboxyliques, caractérisé par le fait que l'oxydation est réalisée en milieu alcalin, au moyen d'un gaz contenant de l'oxygène, en présence d'un catalyseur à base de métal noble choisi dans le groupe constitué par le palladium, le platine, le rhodium et l'osmium et fixé sur support inerte, ledit catalyseur étant "dopé" à l'aide d'un ou plusieurs métaux, ou promoteurs, des groupes IV, V ou VI de la classification périodique. Process for the selective oxidation of di-, tri-, oligo and polysaccharides comprising a terminal reducing function of the aldose type into polyhydroxycarboxylic acids, characterized in that the oxidation is carried out in an alkaline medium, by means of a gas containing oxygen, in the presence of a noble metal catalyst chosen from the group consisting of palladium, platinum, rhodium and osmium and fixed on an inert support, said catalyst being "doped" using a or several metals, or promoters, of groups IV, V or VI of the periodic table.

Inventors

  • 👤 Patrick Fuertes
  • 👤 Guy Fleche

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 02:25
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/18; C04; C04B; C04B24/00; C04B24/04; C04B24/06; C04B24/24; C04B24/38; C07; C07C; C07C51/00; C07C51/16; C07C51/31; C07C51/313; C07H; C07H7/00; C07H7/02; C07H7/027; C08B15/00; C08B15/02; C04B2103/00; C04B2103/20; C04B2103/22; C04B2103/30; C04B2103/302

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag