D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 19/52 (2006.01) C09D 101/28 (2006.01) D21H 19/38 (2006.01) D21H 19/58 (2006.01)
Patent
CA 2412250
The present invention relates to use of an alkylhydroxyalkyl cellulose, which has alkyl groups having 1-3 carbon atoms and hydroxyalkyl groups having 2-3 carbon atoms, is free from hacrophobically modifying alkyl groups having at least 4 carbon atoms and has turbidity point of 50-95 ~C. The amount of carboxymethyl cellulose constitutes up to 1200 percent by weight of the amount of alkylhydroxyalkyl cellulose. An aqueous coating composition containing a combination of alkylhydroxyethyl cellulose and carboxymethyl cellulose is also described.
L'invention concerne l'utilisation d'une cellulose alkylhydroxyalkyle qui possède des groupes alkyle dotés de 1-3 atomes de carbone et des groupes hydroxyalkyle dotés de 2-3 atomes de carbone, qui est exempte de groupes alkyle à modification hydrophobe dotés d'au moins 4 atomes de carbone et qui possède un point de turbidité de 50-95 ·C. La quantité de cellulose carboxyméthyle constitue jusqu'à 1200 % en pds de la quantité de cellulose alkylhydroxyalkyle. L'invention concerne également une composition de revêtement aqueuse contenant une combinaison de cellulose alkylhydroxyalkyle et de cellulose carboxyméthyle.
Hermansson Erland
Larsson Kerstin
Akzo Nobel Nv
Macrae & Co.
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