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W. Pradellok

Polymeric biocides. Pentachlorophenol-functionalized varnish resins

Polimery 1998, No 7-8, 454

DOI: dx.doi.org/10.14314/polimery.1998.454


One or more biocides are added to varnish formulations to protect the coated surface against micro-organisms. No commercial biocide exhibits all the desired properties, particularly long active life and nontoxicity, because of migration, evaporation, sublimation and leaching processes. Temporary fixation of a biocide on the backbone of a polymer by hydrolyzable bonds should result in longer life and lowered toxicity. Pentachlorophenol, a biocide, was fixed to a fatty alkyd resin and to an epoxyester of soya oil fatty acids to yield a good coat-forming functionalized resin.

Keywords: biocides, polymeric biocides, biocides fixed on polymers, alkad resins, epoxy esters, paints, protection against micro-organisms

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