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Modified hyperbranched resins : the key technologyfor low VOC architectural trim paints / Petri Mast in DOUBLE LIAISON, N° 560 (12/2007)

[article]  inDOUBLE LIAISON > N° 560 (12/2007) . - p. 33-38 Titre : Modified hyperbranched resins : the key technologyfor low VOC architectural trim paints Type de document : texte imprimé Auteurs : Petri Mast, Auteur Année de publication : 2008 Article en page(s) : p. 33-38 Note générale : Bibliogr. Langues : Français (fre) Catégories : Composés organiques volatils Polyalkydes Polymères ramifiés Revêtements en bâtiment Revêtements en bâtiment:Peinture en bâtiment Index. décimale : 667.6 Peintures Résumé : During this presentation DSM will introduce a new concept of low VOC (2010 compliant) resins. These resins are specially designed for use in high solid (low VOC) solvent-borne trim paints, meeting the 2010 European Committee legislation on Volatile Organic Compounds. For opaque trim paints (category d), this legislation permits a maximum emission of only 300 gram of volatile organic compounds per liter of paint. Facing this new VOC legislation for decorative paints, of which the 2nd stage will become effective per 01.01.2010, it is abundantly clear that the conventional alkyk resins and their paint formulations can not be used anymore. in this presentation full attention will be given to a novel type of resinwhich DSM has developed base on a new technology : modified hyperbranched resins. This paper describes a comparative study of the basic drying properties of an oxidative drying trim paint based on such a novel resin. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3464 [article]

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Photodegradation of NOx through nano-tiO2. Role of the structural and morphologic characteristics of the material / Silvia Ardizzone in DOUBLE LIAISON, N° 560 (12/2007)

[article]  inDOUBLE LIAISON > N° 560 (12/2007) . - p. 39-42 Titre : Photodegradation of NOx through nano-tiO2. Role of the structural and morphologic characteristics of the material Type de document : texte imprimé Auteurs : Silvia Ardizzone, Auteur ; Giuseppe Cappelletti, Auteur ; Claudia L. Bianchi, Auteur Année de publication : 2008 Article en page(s) : p. 39-42 Note générale : Bibliogr. Langues : Anglais (eng) Résumé : Due to its stability and non toxicity, titanium dioxide is extensively studied as an efficient photocatalyst in air purification treatments. Recently our research group has been very active in the development of composite synthetic procedures for the obtainment of nanocrystalline tailored TiO2 with controlled phase composition (anatase/brookite/rutile), morphology (surface area, porosity, etc.) and surface state. In the present work we report on the photocatalytic activity of these samples in the NOx degradation and then compare it with that of commercial samples with the aim to highlight general criteria in the choice of the best materials for photocatalytic air purification processes. Selected samples were also employed in the gas phase degradation of toluene. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3465 [article]

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