Cationic water soluble resinous reaction product of polyaminopolyamide-epichlorohydrin and nitrogen compound
US3951921A · kind A · utility
22Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Oct 7, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/923
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are novel retention aid resins for paper fillers, said resins being derived by reaction of a nitrogen compound (such as ammonia) and a base resin which is the reaction product of an amino polymer and an epoxide difunctional toward amines. A specific example of such a base resin is a cationic, water-soluble aminopolyamide-epichlorohydrin resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.