Oligomeric, hydroxy-terminated phosphonates
US7449526B2 · kind B2 · utility
9Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Sep 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31522
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Epoxy resins that are suitable for forming epoxy laminates that meet a UL-94 rating of V-0 comprise a hydroxy-terminated oligomeric phosphonate comprising the repeating structure —OP(═O)(R)OArylene-, where R is alkyl, as a flame retardant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.