Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Inoventeam

Blueco Benelux Bv

Termanox B.v.

François Ghillebaert

Antoine Vanlaer

Olivier Tillement

Jean Guezennec

Arthur Marais

Fabien Rossetti

Matteo Martini

Florian Lepoivre

Mahmoud Ould-Metidji

Anatole Collet

The use, as markers of petroleum products, crude oils, biofuels or lubricants, of rare earth complexes or one of the constituents thereof chosen from rare earth ligands or salts, being capable of forming a rare earth complex after the addition of a developing solution. Preferably, the rare earth complex can be detected by time-resolved fluorescence. Also, a marking method and a method for detecting a rare earth complex as a marker of petroleum products, crude oils, biofuels or lubricants.

Use of rare earth complexes as markers of petroleum products, crude oils, biofuels or lubricants

The present invention relates to a biocidal composition including at least one active biocidal compound and at least one nonionic or anionic exopolysaccharide (EPS), the active biocidal compound being selected from at least one triamine having the following formula I, RNRR, formula I where Ris an aminoalkyl radical comprising a straight or branched chain having 2 to 16 carbon atoms, R2 is a hydrogen atom or a straight or branched alkyl chain having 1 to 18 carbon atoms, and Ris, independently from R, an aminoalkyl radical comprising a straight or branched chain having 2 to 16 carbon atoms or a &#x2014;CH&#x2014;CH&#x2014;CH&#x2014;NH&#x2014;Rradical, where Ris a saturated or unsaturated fatty acid chain including 4 to 20 carbon atoms or a mixture of C-Calkyl chains, characterized in that the biocidal composition includes, by weight and relative to the total weight of said biocidal composition, 0.5 to 90% of the biocidal compound and 0.1 to 10% of the exopolysaccharide.

Biocidal composition and method for treating water or surfaces in contact with water

Growing community of inventors

Affringues, France

François Ghillebaert