Process for the preparation of poly (vinylphenol) from poly (acetoxystyrene)
US4689371A · kind A · utility
25Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers of 4-acetoxystyrene are hydrolyzed by methanolysis with quaternary ammonium hydroxides to poly-p-vinylphenol. Such polymers are useful in photoresists and in the manufacture of metal treatment compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.