1,3-bis(dicarboxyphenyl)-1,1,3,3-tetraphenyldisiloxane derivative, process for producing the same, and process for producing polyimide from the same
US5055593A · kind A · utility
2Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Oct 30, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0838
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,3-Bis(dicarboxyphenyl)-1,1,3,3-tetraphenyldisiloxane derivatives useful as raw materials of polyimide resins, hardeners for epoxy resins and others and process for producing these derivatives, and polyamic acid and polyamic acid ester, and polyimide resins and processes for producing them from said disiloxane derivatives. The polyimide resins are good in properties such as adhesion to silicon substrates, heat resistance and mechanical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.