Methods for preserving technical products such as fuels and lubricants with a microbicidal composition

US8349881B2 · kind B2 · utility

Assignee

• Air Liquide Santé (International) · FR

Inventors

• Ralf Gradtke · Tornesch, DE
• Wolfgang Beilfuss · Hamburg, DE
• Klaus Weber · Hamburg, DE
• Wolfgang Siegert · Ellerau, DE

Key dates

• Filing date: May 7, 2010
• Grant date: Jan 8, 2013
• Expiry date: Jul 15, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P31/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Methods for preserving technical products such as fuels and lubricants with a microbicidal composition. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.