Magnetic copolymer, a method of manufacture and applications thereof
US5635582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1994 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Sep 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1071
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns a magnetic copolymer having a structural unit comprising a first multivalent radical and a second multivalent radical derived from an aminoaromatic compound selected from a substituted amine containing at least two condensed benzene nuclei, a substituted polycyclic compound containing at least one aniline unit in its structure, and an aniline derivative substituted on the ring by an ethynylidene or paraphenylene side chain, these compounds being in their reduced or oxidized forms, said first and said second radical being coupled together by a carbon-nitrogen bond and the nitrogen atoms being separated by a single aromatic ring, characterized in that said first radical is derived from a compound selected from 1-naphthylamine, which may be substituted, in its reduced or oxidized form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.