PAPERMAKING ADDITIVES AND MECHANICAL PULP WITH PRIMARY AMINO GROUPS (PULP & STARCH)
If you would like to know more about this technology, please contact one of the following Paprican staff members:
Countries |
Status |
Issued |
Issue # |
*US CON 1 |
Issued |
9/24/2002 |
6455661 B1 |
CA |
Issued |
1/3/2006 |
2357738 |
| PATENT ABSTRACT [Paprican Ref. No. 4144] |
A method for the manufacture and use of a new class of polymeric papermaking additives is disclosed that can be used in paper manufacture as a retention aid and a strength improvement agent. The additives are derived from natural starches and their components, such as amylose and amylopectine, from natural cellulose and its derivatives, or from other carbohydrates. Naturally occurring polycarbohydrates are converted into papermaking additives by chemically inserting into their molecular structure substituents containing primary amino groups. These primary amino groups are reacted to form chemical bonds with carbonyl groups which are especially abundant in wood fibres and fines. Novel papermaking additives produced in this manner are particularly suitable in the production of paper from fibrous pulp suspensions containing at least some mechanical fibre. |
Available Electronic Files(s) in the language of patent filed:
