Polymer composition and process for preparing same
US4413099A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1981 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Sep 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new polymer composition comprised substantially of monomeric units having the formula ##STR1## or its acid salt, wherein R.sub.1 is an alkyl group having from 1 to about 20 carbon atoms or an arylalkyl group having from 7 to about 12 carbon atoms, and R.sub.2 is hydrogen or an alkyl group having from 1 to about 10 carbon atoms. A process for preparing the new polymer comprising the step of hydrogenating the quaternary salt of the pyridine precursor of the polymer under mild reaction conditions and in the presence of a hydrogenation catalyst selected from the Group VIII metals. A further step for preparing the free base polymer from the acid salt by reacting the same under mild conditions with a basic material such as sodium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.