Pulping wood using fatty acid esters of polyoxyalkalene glycols to enhance pulping uniformity and pulp yield
US5501769A · kind A · utility
11Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Mar 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for cooking wood to pulp by contacting the wood with a deresinating agent containing fatty acid esters of polyoxyalkene glycols priors to cooking the wood with an alkaline liquor to simultaneously reduce pulp rejects and increase pulp yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.