Compounds for obtaining polymeric flameproofing agents and the process for obtaining them, as well as the flameproofing agents thus obtained
US4178283A · kind A · utility
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3References
3Claims
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Key dates
| Filing date | Mar 8, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Mar 8, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- 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.