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US 10,597,819 B2Granted
Low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same
AssigneeGP Cellulose GmbH
InventorsArthur J. Nonni, Charles E. Courchene, Phillip R. Campbell, Steven C. Dowdle, Joel M. Engle
Life of this patent
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Abstract
A bleached softwood kraft pulp fiber with high alpha cellulose content and improved anti-yellowing is provided. Methods for making the kraft pulp fiber and products made from it are also described.
Claims11
An oxidized bleached softwood kraft fiber exhibiting:
- a total carbonyl content of less than about 2.5 mmoles/100 g and a CED viscosity of less than about 5 mPa·s.
Dependencies are inferred from the claim text.