Method for producing a suspension in water of a cellulose...

Details Method for producing a suspension in water of a cellulose... Method for producing a suspension in water of a cellulose...

C - Chemistry, Metallurgy

08

L

C08L 1/26 (2006.01) C08J 3/03 (2006.01) C08J 3/05 (2006.01) C08L 1/28 (2006.01)

Patent

CA 2206231

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 8Ø Preferably, the cellulose ether is a hydroxyethylcellulose.

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.

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