Halogen-free, phosphorus-free flame-retardant advanced epoxy resin and an epoxy composition containing the same
US6809130B2 · kind B2 · utility
4Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/182
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A halogen-free, phosphorus-free poly-cyclic compound is used a flame retardant. This compound has amide and hydroxy groups, and thus it is able to react with an epoxy resin to form a reactive type flame-retardant advanced epoxy resin. The advanced epoxy resin together with an inorganic additive are mixed with an epoxy resin to form a halogen-free, phosphorus-free flame-retardant epoxy composition, which can be used in the manufacture of a printed circuit board and as an encapsulation material for a semi-conductor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.