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US 9,284,687 B2Granted
Properties of paper materials
AssigneeNovozymes A/S
InventorsPierre Cassland, Hui Xu, Henrik Lund
Life of this patent
Estimating the term…
Abstract
The use of GH61 polypeptides in the treatment of pulp, for improving tear strength and/or tensile strength of the corresponding paper materials, such as paper, linerboard, corrugated paperboard, tissue, towels, corrugated containers and boxes.
Claims12
A method for improving the paper strength of a paper material made from a pulp, comprising contacting the pulp in a process for making a paper material with a GH61 polypeptide, wherein the amino acid sequence of the GH61 polypeptide comprises the motif(s):
- [ILMV]-P-x(4,5)-G-x-Y-[ILMV]-x-R-x-[EQ]-x(4)-[HNQ]
- and/or,
- H-x(1,2)-G-P-x(3)-[YW]-[AILMV]
- and/or,
- [EQ]-x-Y-x(2)-C-x-[EHQN]-[FILV]-x-[ILV],
- wherein x is any amino acid,
- and wherein [ILMV] is one of I, L, or V, and wherein
- [EQ] is one of E or Q, and wherein
- [HNQ] is one of H, N or Q, and wherein
- [YW] is one of Y or W, and wherein
- [AILMV] is one of A, I, L, M or V, and wherein
- [EHQN] is one of E, H, Q or N, and wherein
- [FILV] is one of F, I, L or V, and wherein
- [ILV] is one of I, L, or V.
11 more elements
Dependencies are inferred from the claim text.