Aqueous polymerization method for poly(isopropenylphosphonic acid)
US5519102A · kind A · utility
8Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | May 9, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F230/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of preparing poly(isopropenylphosphonic acid) is disclosed, which provides a high yield with low initiator charge. The method comprises preparing poly(isopropenylphosphonic acid) by polymerizing a mixture of isopropenylphosphonic acid and isopropenylphosphonic acid anhydride, preferably in an aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.