Aromatic polyphenyl phosphonates
US4117042A · kind A · utility
4Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Apr 26, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New compounds are disclosed for obtaining novel polymeric flameproofing agents. The former are diphenols of the general formula: ##STR1## where n = 0 or 2. The latter are aromatic polyphenylphosphonates having recurring units of the general formula: ##STR2## in which n equals 0 or 2, and are obtained by reacting (I) with phenylphosphonyl chloride. The latter are especially useful for the flameproofing of polyester and finished or shaped articles based on polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.