Rigid-rod polymers
US5227457A · kind A · utility
46Cited by
28References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1989 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Aug 23, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
High-performance polymers having a rigid-rod backbone comprising a chain length of at least 25 organic monomer units joined together by covalent bonds wherein at least about 95% of the bonds are substantially parallel; and solubilizing organic groups attached to at least 1% of the monomer units. The polymers are prepared in a solvent system which is a solvent for both the monomer starting materials and the rigid-rod polymer product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.