Denture adhesive containing partial zirconium, calcium, sodium gantrez salt
US5750591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1997 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Mar 3, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J135/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A denture adhesive with significantly improved hold performance is comprised of the mixed partial salts of polymethyl vinyl ether maleic acid. At least one of said salts comprises zirconium while a second salt is selected from the group consisting of calcium, zinc, magnesium, iron, strontium and mixtures thereof. Optionally, a tripartite salt formulation may be prepared utilizing sodium, lithium or potassium. The adhesives are formulated in a standard pharmaceutically acceptable vehicle comprised of waxes, oils, colorants, viscosity modifiers and the like as is known in the art. The denture adhesive may be formulated as a paste, powder or liquid which has rapid absorption characteristics for faster swelling softening and superior coalescence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.