Basf Se Corporation

Janina Purschwitz

Menno Hazenkamp

Alejandra Garcia Marcos

Stephan Hüffer

Werner Hölzl

Disclosed are compositions comprising a) an antimicrobial agent, which is selected from the group consisting of biocides containing halogen atoms and/or containing phenolic moieties, formic acid, chlorine dioxide, chlorine dioxide generating compounds, dialdehydes; components containing an antimicrobial metal such as antimicrobial silver, and b) a polyamine, especially a polyethylenimine. The polyamine is effective as a booster for the antimicrobial agent.

Enhancing the antimicrobial activity of biocides with polymers

Disclosed is a novel method for achieving an antimicrobial, preservative and/or microorganism adhesion inhibiting effect, for the protection within an article and/or material or on the surface of an article and/or material. The novel method comprises application of a salicylic compound of the formula (I) wherein one of A and A is a residue of the formula (I'): &#x2014;NH&#x2014;CO&#x2014;Rwhile the other is hydrogen; Ris C-Calkyl, C-Ccycloalkyl, C-Ccycloalkyl interrupted by O and/or NR, C-Caryl, C-Carylalkyl; Ris ORor NHR; Rand Rare selected from H, C-Calkyl, C-Ccycloalkyl, C-Ccycloalkyl interrupted by O and/or NR, C-Caryl, C-Carylalkyl; Ris H or C-Calkyl; wherein each aryl moiety is unsubstituted or substituted by C-Calkyl, C-Calkoxy, C-Cacyl, C-Cacyloxy, C-Cacylamino, CF, OH, amino, halogen; or an adduct or salt thereof; to said article and/or material. 

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Bad Durkheim, Germany

Janina Purschwitz