Low molecular weight aromatic polymers with biphenylene end groups
US4507462A · kind A · utility
11Cited by
6References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1981 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Aug 3, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G85/004
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Biphenylene end-capped low molecular weight thermally stable aromatic polymers and the process for their preparation. The invention is further directed to crosslinked biphenylene end-capped aromatic polymers and to the process for their preparation. The process for preparing the biphenylene end-capped low molecular weight thermally stable aromatic polymers comprises carrying out a misbalanced polymerization reaction of a suitable aromatic aminoketone compound and a suitable aromatic ketomethylene compound and thereafter adding a monofunctional biphenylene compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.