Bis-ethynyl heterocyclic compositions and method of snythesis
US4022746A · kind A · utility
5Cited by
3References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 10, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Sep 10, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Bis-ethynyl quinoxaline compositions are prepared by the condensation reaction of an aromatic diglyoxyl or dibenzil with an ethynyl-substituted aromatic ortho-diamine. The compositions are useful as polymerizable plasticizers for heterocyclic thermoplastic resins in the fabrication of composites. Polymerizable plasticizers are materials that remain fluid and act as a plasticizer during early stages of fabrication and then polymerize to a rigid resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.