Nitrogen-containing polymeric compounds
US5093470A · kind A · utility
3Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1991 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Aug 14, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Crosslinkable compounds obtainable by reaction of water-soluble mono- or polyamines with 2,3-epoxypropyl sulphonates or 2-hydroxypropyl 1,3-bis-sulphonates or their mixtures with up to 15 mol % of an epihalogenohydrin or diyhalogenohydrin are used for imparting wet strength to paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.