Layered organophosphorus inorganic polymers containing acyclic groups
US4276411A · kind A · utility
10Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Jul 24, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/64
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Solid inorganic polymers which are derivatives of acyclic organo group-containing phosphonic or phosphoric acids are characterized by the structural linkage of three oxygens bonded to phosphorus to one or more tetravalent metals selected from the group consisting of titanium, zirconium, cerium, hafnium, lead, thorium and uranium. The molar ratio of phosphorus to tetravalent metal is about 2 to 1. One use for the polymers is as stationary phases or supports in chromatography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.