Non-toxic solvent soluble group IV and V metal acid salt complexes using polyether acid anhydrides
US6054600A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/56
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel metal acid salt complexes are provided comprising (1) a metal selected from Group IV and Group V metals and (2) a polyether acid, along with a process for making the salt complexes. The process comprises: (a) preparing a polyether acid anhydride from the corresponding polyether acid; and (b) combining a metal alkoxide containing the Group IV or Group V metal with the polyether acid anhydride to form the metal acid salt complex. The resulting Group IV and Group V metal acid salt complexes enable the production of improved thin film, thick film, and bulk ceramic metal oxides and mixed metal oxides for a number of applications, including ferroelectric, electrooptic, paraelectric, and piezoelectric devices, using liquid soluble precursors which are soluble in far less toxic solvents than in the prior art. The soluble ceramic precursors may also be used as reactive binders and shape-forming aids in conventional ceramic processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.