Phosphorous containing materials, their preparation and use
US6984717B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2002 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Apr 2, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/85
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed towards phosphorous containing organic materials, processes for making them and uses thereof. These materials preferably impart and/or exhibit resistance to attack, for example they may be useful as flame retardant additives and/or materials. The materials are especially radiation-curable polyester polymers. The phosphorous component used has at least one P—C bond resistant to hydrolysis or transesterification. It can be bis(hydroxymethyl)isobutylphosphineoxide, bis(hydroxypropyl)isobutylphosphine oxide and trishydroxymethylphosphine oxide. In other embodiments, it is 9,10-dihydro-9-oxa-10-phosphaphenantrene-10-oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.