One step production of low salt vinylamine polymers
US5491199A · kind A · utility
7Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Salt-free poly(vinylamine) and vinylamine copolymers are formed by heating N-vinylformamide or N-vinylformamide copolymers to a temperature from about 50.degree. to 225.degree. C. in an aqueous medium in the presence of a catalyst comprising a transition metal which is a member of either the first transition series or of Group VIII.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.