Aqueous compositions for sizing of paper
AssigneeEka Nobel AB
InventorsEbbe Lyrmalm, Bruno Carr e
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Abstract
The present invention provides a paper sizing composition which comprises a sizing agent selected from cyclic dicarboxylic acid anhydride or alkyl ketene dimer, a stabilizing and/or dispersing agent which is an amphoteric polymer and a polyaluminum compound.
Claims16
An aqueous sizing composition which comprises a sizing agent which is selected from the group consisting of cyclic dicarboxylic acid anhydride and alkyl ketene dimer, a stabilizing and/or dispersing agent which is an amphoteric polymer selected from the group consisting of amphoteric starch and amphoteric acrylamide based polymer, and a polyaluminum compound.
An aqueous sizing composition which comprises at least one alkyl ketene dimer, at least one amphoteric starch as a dispersing and/or stabilizing agent for said alkyl ketene dimer, and at least one polyaluminum compound.
Dependencies are inferred from the claim text.