High efficacy, low irritation aluminum salts and related products
US7311898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Apr 22, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q15/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A zirconium-free aluminum salt which: (a) has an aluminum to chloride molar ratio in the range of 0.5-2.5:1; (b) comprises a nitrogen containing buffering material in an amount such that the ratio of nitrogen containing material to aluminum is the range of 0.05-0.26:1, and which nitrogen containing material is selected from the group consisting of a nitrogen containing buffering material of formulawhere n is a number in the range of 1-20, and each of R1, R2, and R3 is independently selected from the group consisting of hydrogen, methyl and ethyl; and (c) the salt has a pH in the range of 2-4 at a concentration of 15%; wherein the salt is free of any other halide scavenging material and has a value of at least 0.50 for the ratio calculated as:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.