Method for making heterocyclic block copolymer
US4578432A · kind A · utility
28Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermally stable aromatic heterocyclic block copolymers are prepared by reacting a diamino monomer and terephthalic acid to form a carboxy-terminated rigid rod segment and then polymerizing a carboxy-monoamine monomer therewith to form flexible segments grafted onto the rigid rod segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.