Paper prepared from aldehyde modified cellulose pulp
US6562195B2 · kind B2 · utility
47Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Paper comprising aldehyde modified cellulose pulp having selected aldehyde content. Another embodiment involves a method of preparing celullose aldehydes using selective oxidation with a limited amount of oxidant and a nitroxyl radical mediator and defined reaction conditions to provide oxidized cellulose material with effective aldehyde content making it particularly suitable for use in making paper with desirable wet strength, temporary wet strength and dry strength properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.