EP 3728336 A1 20201028 - METHOD FOR MODIFYING POLYSACCHARIDE MATERIAL BY SEQUENCED HOMOGENEOUS CHEMICAL FUNCTIONALISATION
Title (en)
METHOD FOR MODIFYING POLYSACCHARIDE MATERIAL BY SEQUENCED HOMOGENEOUS CHEMICAL FUNCTIONALISATION
Title (de)
VERFAHREN ZUR MODIFIZIERUNG VON POLYSACCHARIDMATERIAL DURCH SEQUENZIERTE HOMOGENE CHEMISCHE FUNKTIONALISIERUNG
Title (fr)
PROCÉDÉ DE MODIFICATION DE MATIÈRE POLYSACCHARIDIQUE PAR FONCTIONNALISATION CHIMIQUE HOMOGÈNE SÉQUENCÉE
Publication
Application
Priority
- FR 1763142 A 20171222
- FR 2018053523 W 20181221
Abstract (en)
[origin: WO2019122787A1] The present invention concerns a method for modifying a polysaccharide material, preferably an amylaceous material, involving a first step of homogeneous solubilisation of said polysaccharide material in an aqueous solvent, followed by a step of homogeneous chemical functionalisation comprising at least one non-crosslinking chemical modification, or at least one crosslinking chemical modification, or a sequence of at least one non-crosslinking chemical modification and at least one crosslinking chemical modification. Secondly, the present invention concerns a modified polysaccharide material, in particular obtained by the method according to the invention, characterised in that it has a novel distribution of the chemical substituents attached to the hydroxyl functions of the anhydroglucose units of said polysaccharide material. The novel starches can be used as organic adjuvants for dry mortars made from cement or made from gypsum, in particular as a binder for a dry mortar made from cement or as a thickening agent for a mortar made from plaster. . . .
IPC 8 full level
C08B 31/02 (2006.01); C08B 31/08 (2006.01); C08B 31/12 (2006.01); C08B 31/16 (2006.01); C08L 3/10 (2006.01)
CPC (source: EP US)
C04B 24/38 (2013.01 - EP US); C04B 28/02 (2013.01 - EP); C04B 28/04 (2013.01 - EP US); C04B 28/14 (2013.01 - EP US); C08B 31/006 (2013.01 - US); C08B 31/02 (2013.01 - EP US); C08B 31/08 (2013.01 - EP); C08B 31/12 (2013.01 - EP US); C08B 31/16 (2013.01 - EP); C08L 3/10 (2013.01 - EP); C04B 2103/44 (2013.01 - EP US); C04B 2111/00637 (2013.01 - EP US)
Citation (search report)
See references of WO 2019122787A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019122787 A1 20190627; BR 112020012701 A2 20201124; CA 3086380 A1 20190627; CN 111655738 A 20200911; EP 3728336 A1 20201028; FR 3075799 A1 20190628; FR 3075799 B1 20200710; JP 2021507969 A 20210225; JP 7366027 B2 20231020; MX 2020006579 A 20201207; US 2020339705 A1 20201029; US 2023331873 A1 20231019
DOCDB simple family (application)
FR 2018053523 W 20181221; BR 112020012701 A 20181221; CA 3086380 A 20181221; CN 201880087859 A 20181221; EP 18842804 A 20181221; FR 1763142 A 20171222; JP 2020534595 A 20181221; MX 2020006579 A 20181221; US 201816956384 A 20181221; US 202318113772 A 20230224