Cellulase composition containing cellulase and papermaking polymers for paper dry strength application
US9011643B2 · kind B2 · utility
9Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein are cellulase compositions useful as papermaking performance additives for improving paper dry strength of a paper product and reducing refining energy in papermaking processes, and improving paper production. These cellulase compositions are formulated using cellulase, papermaking contaminant control polymers, protein stabilizers and cellulase enhancers. These cellulase compositions measure higher in endo-cellulase activity with better stability than conventional cellulase, and have shown differentiating performance in improving paper dry strength properties versus cellulase alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.