Patent · US Expired

Liquid concentrate for the preservation of cosmetic and pharmaceutical products

US7364746B2 · kind B2 · utility

2Cited by

2References

60Claims

0Family size

Assignee

Air Liquide Santé (International) · FR

Inventors

Gisela Hahn · Alveslohe, DE
Klaus Weber · Hamburg, DE
Ralf Gradtke · Tornesch, DE
Wolfgang Beilfuss · Hamburg, DE

Key dates

Filing date	Aug 26, 2003
Grant date	Apr 29, 2008
Priority date	—
Expiry date	Jul 5, 2025

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/526
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a liquid concentrate for the preservation of cosmetic and pharmaceutical products which comprises 3-iodo-2-propynyl butylcarbamate (IPBC), at least one liquid carrier selected from the group consisting of: polyvalent alcohols, glycol esters and glycol ethers, and at least one stabilizer selected from the group consisting of: formic acid, formic acid salts, and formate esters, and comprising no additional carboxylic acid selected from the group consisting of: benzoic acid, propionic acid, salicylic acid, sorbic acid, 4-hydroxybenzoic acid, dehydroacetic acid and 10-undecylenic acid and a salt thereof being present.

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