Layered organophosphorous inorganic polymers containing oxygen bonded to carbon
US4390690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the production of phosphorus-containing organo-substituted solid inorganic polymers containing oxygen bonded to carbon comprising reacting in a liquid medium (e.g. water) at least one tetravalent metal ion and at least one organophosphorus acid of the formula; EQU [(HO).sub.2 OP].sub.n R or [(HO).sub.2 OPO].sub.n R wherein n is 1 or 2 and R is an organo group covalently coupled to phosphorus, and which also contains oxygen coupled to carbon but not to phosphorus, and wherein when n is 2, R contains at least two carbon atoms and is directly or indirectly coupled to the phosphorus atoms through different carbon atoms whereby the two phosphorus atoms are separated by at least two carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.