Bisphenol-A bis(diphenyl phosphate)-based flame retardant
US6319432A · kind A · utility
20Cited by
23References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 11, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a flame retardant comprising bisphenol A bis(diphenyl phosphate) and its dimer, the former having an HPLC determined 78 to 87 area % and an 85 to less than 90 normalized area %, the normalized area % being based on the total HPLC area % of the bisphenol A bis(diphenyl phosphate) and the dimer. The flame retardant also has a low isopropenylphenyl diphenyl phosphate and a low triphenylphosphate content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.