Ternary systems of benzoxazine, epoxy, and phenolic resins
US6207786A · kind A · utility
65Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Nov 10, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Low viscosity ternary mixtures of benzoxazine, epoxy and phenolic resins have been developed. The blends render homogeneous and void free cured specimen with a wide range of properties. Melt viscosity values as low as 0.3 Pa.s at 100.degree. C. can be achieved. The phenolic resin acts as a cure accelerator to the system, besides its typical function as a hardener of epoxy resin. Glass transition temperatures Tg as high as 170.degree. C. can also be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.