Paper prepared from aldehyde modified cellulose pulp and the method of making the pulp
US6228126A · kind A · utility
65Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Aug 17, 2019 |
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.