Modification of paper coating rheology

Details Modification of paper coating rheology Modification of paper coating rheology

D - Textiles, Paper

21

H

D21H 19/44 (2006.01) C09D 7/12 (2006.01) D21H 19/56 (2006.01) D21H 19/58 (2006.01)

Patent

CA 2517055

Thickener compositions for addition to paper coating compositions in order to obtain low high shear viscosity and good water retention. The thickener compositions comprise an associative thickener with an associative content below 10%, a molecular weight below one million and an acid content of at least 10% by weight.

La présente invention concerne des compositions épaississantes destinées à être ajoutées à des compositions de revêtement de papier pour obtenir une viscosité de cisaillement faible et une bonne rétention d'eau. Les compositions épaississantes comprennent un épaississant associatif avec une teneur en épaississant associatif inférieure à 10 %, un poids moléculaire inférieur à un million et une teneur en acide d'au moins 10 % en poids.

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