Organophosphorus compounds and process for the production thereof
US4086206A · kind A · utility
14Cited by
5References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 5, 1977 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Jul 5, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New phosphorus-containing condensation products are obtained by conducting dehydrocondensation of 10-hydroxymethyl-9, 10-dihydro-9-oxa-10-phosphorphenanthrene-10-oxide compounds with melamine or benzoguanamine. Alternatively, 9, 10-dihydro-9-oxa-10-phosphorphenanthrene-10-oxide compounds with alkoxymethyl melamines or alkoxymethyl benzoguanamines are condensed under heating. These phosphorus-containing condensation products are useful, particularly as a flame retardant for various synthetic resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.