High char yield benzoxazine compositions
US6482946B1 · kind B1 · utility
27Cited by
4References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Nov 3, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A high char yield polybenzoxazine is formed by mixing (i) a benzoxazine compound, (ii) a furan compound, (iii) a benzoxazine-furan compound or combinations thereof, wherein the mixture has a benzoxazine ring to furan ring ratio from about 0.001 to about 10 and then heating the mixture for a sufficient time to form the polybenzoxazine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.