Patent · US Active

Use of an amphoteric chelating agent for preventing contact allergies

US11197874B2 · kind B2 · utility

0Cited by

4References

22Claims

0Family size

Assignee

PREVOR INTERNATIONAL · FR

Inventors

Joel Blomet · Valmondois, FR
Laurence Mathieu · Talence, FR
Marie-Claude Meyer · Paris, FR

Key dates

Filing date	Jul 17, 2013
Grant date	Dec 14, 2021
Priority date	—
Expiry date	Jul 17, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/51
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A method of preventing contact allergies includes using at least one amphoteric chelating agent which includes a complex based on aluminium and on ethylenediaminetetraacetic acid or the trisodium salt thereof, having the general formula [Al(Y)Bn]c′Dc with B being OH−, BO2− or H+, Y being a tetracarboxylate which can be protonated four times to form ethylenediaminetetraacetic acid, n being an integer equal to 0, 1, 2 or 3, D being a counterion, preferably Na+, c being an integer equal to 0, 1, 2 or 3 and c′ being a relative number having the same absolute value as c. A device, a part of which includes the amphoteric chelating agent, is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.