Magnetic recording medium composition and method of manufacturing magnetic recording medium
US9934809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/714
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The magnetic recording medium composition contains ferromagnetic powder, binder, and a crosslinkable component selected from the group consisting of a component capable of forming a crosslinking structure by a radical reaction, a component capable of forming a crosslinking structure by an ionic reaction, and a component capable of forming a crosslinking structure by a pericyclic reaction, wherein the crosslinkable component contains at least polyester, and the polyester has a weight average molecular weight ranging from 1,000 to 20,000, as well as contains, per molecule, one or more acidic groups, and one or more reactive groups selected from the group consisting of a radical reactive group, an ionic reactive group, and a pericyclic reactive group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.