Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2001030731) METHOD FOR PREPARING A NON-CRYSTALLIZABLE POLYOL SYRUP
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/030731 International Application No.: PCT/FR2000/002963
Publication Date: 03.05.2001 International Filing Date: 25.10.2000
IPC:
C07C 29/141 (2006.01) ,C07C 29/76 (2006.01) ,C07C 29/88 (2006.01) ,C07C 311/18 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
132
by reduction of an oxygen-containing functional group
136
of CO containing groups, e.g. -COOH
14
of a -CHO group
141
with hydrogen or hydrogen-containing gases
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
76
by physical treatment
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
88
by treatment giving rise to a chemical modification of at least one compound
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
311
Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
15
Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings
16
having the nitrogen atom of at least one of the sulfonamide groups bound to hydrogen atoms or to an acyclic carbon atom
18
to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms, not being part of nitro or nitroso groups
Applicants:
ROQUETTE FRERES [FR/FR]; F-62136 Lestrem, FR
Inventors:
SALOME, Jean-Paul; FR
FEREZ, Patrick; FR
LEFEVRE, Philippe; FR
Agent:
BOULINGUIEZ, Didier ; Cabinet Plasseraud 84, rue d'Amsterdam F-75440 Paris Cedex 09, FR
Priority Data:
99/1349228.10.1999FR
Title (EN) METHOD FOR PREPARING A NON-CRYSTALLIZABLE POLYOL SYRUP
(FR) PROCEDE DE PREPARATION D'UN SIROP DE POLYOLS NON CRISTALLISABLE
Abstract:
(EN) The invention concerns a method for preparing a heat-stable and alkali-resistant, non-crystallizable polyol syrup, comprising a step which consists in hydrogenating a sugar syrup and a step which consists in caramelizing the hydrogenated sugar syrup. The invention is characterised in that the hydrogenated and caramelized sugar syrup is purified on ion-exchanging resins, said purification comprising at least a process which consists in passing it at least once on strong cationic resin at a temperature less than 50 °C and selected according to the desired reducing sugar proportion in the non-crystallizable polyol syrup. The invention also concerns the use of the resulting polyol syrup for preparing toothpaste.
(FR) L'invention concerne un procédé de préparation d'un sirop de polyols non cristallisable, stable à la chaleur et en milieu alcalin, mettant en oeuvre une étape d'hydrogénation d'un sirop de sucres et une étape de caramélisation du sirop de sucres hydrogéné, caractérisé par le fait que le sirop de sucres hydrogéné et caramélisé subit une purification sur résines échangeuses d'ions, ladite purification comprenant au moins un passage sur résine cationique forte à une température inférieure à 50 °C et choisie en fonction du taux de sucres réducteurs recherché dans le sirop de polyols non cristallisable. Elle concerne également l'utilisation du sirop de polyols obtenu pour la préparation de pâtes dentifrices.
Designated States: BR, CN, HU, ID, IN, JP, KR, MX, NO, PL
Publication Language: French (FR)
Filing Language: French (FR)