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US 6,183,550 B2Granted
Paper size dispersions
AssigneeHercules Incorporated
InventorsHerbert Conner, Tingdong Lin, Gert Tuin, Henrica G. M. van de Steeg
Life of this patent
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Abstract
Aqueous paper size dispersions comprising: a) at least one paper sizing compound, and b) a water-soluble dispersant containing at least two hydrophilic groups and at least one hydrophobic group. Processes for sizing paper utilizing the aqueous paper size dispersions, and paper made by the processes.
Claims53
An aqueous dispersion comprising:
- a) at least one paper sizing compound, and
- b) a water-soluble dispersant containing at least two hydrophilic groups and at least one hydrophobic group.
An aqueous paper size dispersion comprising:
- a) a cellulose-reactive sizing agent, and
- b) a water-soluble dispersant comprising a di- or polyquaternary amine containing at least one hydrophobic group having from about 10 to about 30 carbon atoms.
Dependencies are inferred from the claim text.