Cationization of starch utilizing alkali metal hydroxide, cationic water-soluble polymer and oxidant for improved wet end strength
US4097427A · kind A · utility
83Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Feb 14, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved method for cationizing starch which comprises reacting an aqueous slurry of starch under alkaline conditions with a water-soluble quaternary ammonium polymer in the presence of a small amount of a metal-free oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.