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AssigneesBraskem S.A., Universidade Federal do Rio Grande do Sul
InventorsEdwin Moncada, Joao Henrique Zimnoch dos Santos, Larissa Brentano Capeletti
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The present invention relates to active and intelligent additives having hybrid characteristics, that are compatible with polymers, are thermally and mechanically stable, are capable of releasing electrons and/or photons in the presence of chemical compounds, specifically amino compounds, amide compounds, oxygen reducing compounds, water or vapors thereof. The active and intelligent additives incorporate themselves into polymer matrices allowing the obtainment of active and intelligent polymeric articles. These active and intelligent polymeric articles may act as inhibitors of growth of microorganisms and fungi, as well as indicators of the presence of gasses, either in the atmosphere or caused by the decomposition of foodstuffs, for example.
An active and intelligent additive incorporated within a non-polar polymer matrix and formed of a sensitive compound encapsulated in an inorganic matrix with hybrid characteristics, said inorganic matrix with hybrid characteristics formed by a silicon alkoxide or a titanium alkoxide, wherein said sensitive compound releases electrons and/or photons as an antimicrobial agent in the presence of a reactive chemical compound by means of a reaction of corrosion of the encapsulated sensitive compound, said reactive chemical compound comprising any compound present in a medium that activates said sensitive compound, wherein said sensitive compound is selected from the group consisting of copper (I), sulfur, ascorbic acid and citric acid, and wherein
A non-polar polymer material comprising an active and intelligent additive incorporated within the non-polar polymer material, wherein said active and intelligent additive is formed of a sensitive compound encapsulated in an inorganic matrix with hybrid characteristics, said inorganic matrix with hybrid characteristics formed by a silicon alkoxide or a titanium alkoxide, wherein said sensitive compound releases electrons and/or photons as an antimicrobial agent in the presence of a reactive chemical compound by means of a reaction of corrosion of the encapsulated sensitive compound, said reactive chemical compound comprising any compound present in a medium that activates said sensitive compound, wherein said sensitive compound is selected from the group consisting of copper (I), sulfur, ascorbic acid and citric acid, and wherein
Dependencies are inferred from the claim text.