Reactive amino-quinones, copolymers thereof and corrosion resistant information storage devices
US5475066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Dec 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1007
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Reactive aminoquinones of formula I or II ##STR1## wherein R is hydrogen, branched, linear or cyclic C.sub.1 -C.sub.6 alkyl, aralkyl, or phenyl which may be substituted by linear, branched or cyclic C.sub.1 -C.sub.4 alkyl, --NO.sub.2, F, OR.sup.2, NR.sup.3.sub.2, wherein R.sup.2 and R.sup.3 are linear, branched or cyclic C.sub.1 -C.sub.6 alkyl, aralkyl or phenyl, PA1 R.sup.1 is a linear, branched or cyclic C.sub.2 -C.sub.18 alkylene chain, phenylene, aralkylene, alkarylene, or --(CH.sub.2 CH.sub.2 --O).sub.n --CH.sub.2 --CH.sub.2 --, wherein n is an integer from 1 to 50, PA1 X is hydroxy, epoxy, vinyl, vinyloxy, acrylate, methacrylate or acylchloro PA1 Y is N or CH; and PA1 R.sup.4 is linear or branched C.sub.1 -C.sub.6 alkyl which are useful in forming copolymers to prepare corrosion resistant binder compositions for magnetic information storage media, the copolymers formed, the magnetic information storage media and a method for improving corrosion resistance in magnetic particles are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.