Intumescent, halogen-free, silicon-phosphorus-nitrogen based polymeric flame retardant
US9175223B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2010 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/295
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides intumescent, halogen-free, polymeric, silicon-phosphorus-nitrogen (SPN) flame retardant, a process for their preparation, and systems, compositions and articles into which they are incorporated. The inventive intumescent, halogen-free, SPN polymer compositions afford good flame retardant performance at a lower loading compared to conventional phosphorus and nitrogen based intumescent flame retardant compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.