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1. WO1996018676 - METHOD FOR PRODUCING A SUSPENSION IN WATER OF A CELLULOSE ETHER, AND DRY MIXTURE SUITABLE FOR USE IN THE PRODUCTION OF THE SUSPENSION

Publication Number WO/1996/018676
Publication Date 20.06.1996
International Application No. PCT/SE1995/001362
International Filing Date 16.11.1995
Chapter 2 Demand Filed 23.05.1996
IPC
C08J 3/05 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
03in aqueous media
05from solid polymers
C08L 1/28 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose, or cellulose derivatives
08Cellulose derivatives
26Cellulose ethers
28Alkyl ethers
CPC
C08J 2301/28
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2301Characterised by the use of cellulose, modified cellulose or cellulose derivatives
08Cellulose derivatives
26Cellulose ethers
28Alkyl ethers
C08J 3/05
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
02Making solutions, dispersions or lattices by other methods than by solution, emulsion or suspension polymerisation techniques
03in aqueous media
05from solid polymers
C08L 1/284
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose or cellulose derivatives
08Cellulose derivatives
26Cellulose ethers
28Alkyl ethers
284with hydroxylated hydrocarbon radicals
Applicants
  • AKZO NOBEL N.V. [NL]/[NL] (AllExceptUS)
  • ANDERSSON, Lars [SE]/[SE] (UsOnly)
  • BOSTRÖM, Peter [SE]/[SE] (UsOnly)
Inventors
  • ANDERSSON, Lars
  • BOSTRÖM, Peter
Agents
  • ANDERSSON, Rolf
Priority Data
9404373-415.12.1994SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR PRODUCING A SUSPENSION IN WATER OF A CELLULOSE ETHER, AND DRY MIXTURE SUITABLE FOR USE IN THE PRODUCTION OF THE SUSPENSION
(FR) PROCEDE DE PREPARATION D'UNE SUSPENSION D'ETHER CELLULOSIQUE DANS DE L'EAU ET MELANGE SEC CONVENANT A LA PREPARATION DE LADITE SUSPENSION
Abstract
(EN)
In a method for producing a suspension of a nonionic cellulose ether that has no turbidity point, the water forming part of the suspension is mixed with a dry mixture containing a cellulose ether, which is cross-linked with glyoxal, and an electrolyte salt. This electrolyte salt consists of a salt or a mixture of salts which, in water and at the concentration employed, results in a pH value below 8.0. Preferably, the cellulose ether is a hydroxyethylcellulose.
(FR)
Dans un procédé de préparation d'une suspension contenant un éther cellulosique non ionique sans point de turbidité, l'eau faisant partie de la suspension est mêlée à un mélange sec contenant un éther cellulosique, réticulé avec du glyoxal, et un sel électrolytique. Celui-ci est un sel ou un mélange de sels qui, dans l'eau et à la concentration employée, produit un pH d'une valeur inférieure à 8, 0. Cet éther cellulosique est, de préférence, une hydroxyéthylcellulose.
Also published as
FI972474
NO19972523
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