Fast, safe and flexible / John Argyropoulos in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2015)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 11 (11/2015) . - p. 42-48 Titre : Fast, safe and flexible : Novel PU chemistry combines rapid cure with extended pot-life Type de document : texte imprimé Auteurs : John Argyropoulos, Auteur ; Nahrain Kamber, Auteur ; Paul Popa, Auteur ; David Pierce, Auteur ; Yanxiang Li, Auteur ; Paul Foley, Auteur ; Gary Spilman, Auteur ; Jeff Anderson, Auteur Année de publication : 2015 Article en page(s) : p. 42-48 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcools Durée de vie en pot Essais (technologie) Formulation (Génie chimique) Polyols Primaire (revêtement) Réticulation (polymérisation) Revêtements sans isocyanates Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Traditional two-component ambient-cure polyurethanes must balance cure speed against pot-life. A novel isocyanate-free polyurethane curing chemistry effectively decouples pot-life and cure speed. The coatings offer excellent chemical resistance, adhesion, mechanical properties and weatherability. Note de contenu : - Preparation of test coatings summarised - Test equipment and procedures used - New chemistry can be based on standard polyols - Reversible reaction with alcohols extends pot-life - Reaction equilibrium studied - Initial tests show high coating performance - Primer-surfacer has fast dry-to-sand time - Physical properties are good, with long pot-life - High performance with flexibility in application En ligne : https://drive.google.com/file/d/1wtwU8bQVw7lGchK8hdf5HNxGtduHIYBF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25284 [article]

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Seed oil based polyester polyols for coatings / John Argyropoulos in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 4 (12/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 501-508 Titre : Seed oil based polyester polyols for coatings Type de document : texte imprimé Auteurs : John Argyropoulos, Auteur ; Paul Popa, Auteur ; Gary Spilman, Auteur ; Debkumar Bhattacharjee, Auteur ; William Koonce, Auteur Année de publication : 2009 Article en page(s) : p. 501-508 Note générale : Bibliogr. Langues : Américain (ame) Tags : Polyester  polyol  Seed  oil  Polyurethane  dispersion  coating  High  solids  Solubility  parameter Index. décimale : 667.9 Revêtements et enduits Résumé : The hydroformylation of seed oil based fatty acid methyl esters leads to aldehyde intermediates that can be hydrogenated to give novel seed oil based monomers. In this study, the seed oil based monomers were polymerized with low molecular weight diols to produce novel aliphatic polyester polyols with very low viscosities. The seed oil polyester polyols provide environmentally friendly (green) coating formulations with low volatile organic compound emissions which lead to coatings with superior physical properties, such as exceptional hydrolytic resistance and flexibility. From these polyester polyols, waterborne polyurethane dispersions were also developed with excellent stability resulting in coatings with superior physical properties (i.e., good toughness and abrasion resistance), and exceptional hydrolytic and acid resistance. DOI : 10.1007/s11998-008-9154-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9154-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7693 [article]

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Sustainable, low-emissions, high-performance polyols for wood floor coatings / Gary Spilman in COATINGS TECH, Vol. 15, N° 10 (10/2018)  

[article]  inCOATINGS TECH > Vol. 15, N° 10 (10/2018) . - p. 34-43 Titre : Sustainable, low-emissions, high-performance polyols for wood floor coatings Type de document : texte imprimé Auteurs : Gary Spilman, Auteur ; Scott Moore, Auteur ; Simone J. Marshall, Auteur Année de publication : 2018 Article en page(s) : p. 34-43 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Bois -- Vernis Brillance (optique) -- Mesure Dureté (matériaux) Formulation (Génie chimique) Isocyanates Polyols Polyuréthanes Résistance à l'abrasion Résistance aux taches Résistance chimique Vernis -- Additifs Vernis bi-composant Index. décimale : 667.9 Revêtements et enduits Résumé : The industrial wood coatings space is undergoing some challenges and changes while continuing to grow. The development of sustainable, low-emissions, high-performance wood floor coating technologies continues to be of high interest to the coatings industry. Sustainable content in these coatings contributes to an improved environmental footprint, while low-emission compositions improve the indoor air quality and thereby the health and well-being of building and home occupants desiring to re-occupy these structures as soon as possible. Biorenewablecontent polyols that incorporate low volatile organic content (VOC) (<150 g/L) technology to yield two-component (2K) polyurethane wood floor coatings that have excellent stain and chemical resistance, excellent adhesion to both bare and prefinished floors, good abrasion resistance, low odor, and excellent gloss have been developed. The new coating properties may be readily tailored to meet the individual needs of different floor coating jobs by simply adjusting the isocyanate index or isocyanate type. This study compared a new fully formulated, 150 g/L coating based on this sustainable resin technology and demonstrated properties consistent with being the best overall protective coating for wood at the most economical usage (matching or better finish is achieved with only two coats vs the commercial products needing four or five coats over both original and refinished wood flooring) and lowest VOC in the test group. Initial performance from converting the new floor-coating products into waterborne systems was also investigated. Note de contenu : - Table 1 : Isocyanate materials used - Table 2 : Formulation additives - Table 3 : Adhesion data - Table 4 : Chemical resistance (MFMA specification) - Table 5 : Hardness data - Table 6 : Isocyanate blending results - Table 7 : Catalyst ladder at two index levels for IPDI trimer - Table 8 : Final 2K coating formulation taber test data - Table 9 : Benchmark samples - Table 10 : Final film properties of RMG 2K SB formulated 150 g/L coating vs MFMA specification - Fig. 1 : König hardness results of commercial vs developmental samples - Fig. 2 : a) Pencil hardness and b) adhesion results of commercial vs developmental samples - Fig. 3 : Taber abrasion results at 100 and 500 cycles, grams weight loss - Fig. 4 : Impact results - Fig. 5 : Gloss reading readings for various products tested ve RMG 2K SB - Fig. 6 : Gloss and distinctness of image from the developmental 2K solventborne coating over scuffed UV-cured OEM floor finish on maple - Appendix : Final wood coating formulation for 75% we solids at 150 g/L VOC En ligne : https://drive.google.com/file/d/1X210OPR2aKp7V5EM5u7S47PvbF1lJjQB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31828 [article]

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