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Radical change in research and development : The shift from conventional methods to high throughout methods / Dean C. Webster in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 24-29 Titre : Radical change in research and development : The shift from conventional methods to high throughout methods Type de document : texte imprimé Auteurs : Dean C. Webster, Auteur Année de publication : 2005 Article en page(s) : p. 24-29 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : High throughput methodology is a radical change in how experiments are carried out and can revolutionize how laboratories operate in the future. As these methods become more widespread, organizations that do not adopt high throughput methods will be at a significant disadvantage. Simple steps can be taken to begin moving toward high throughput methods now. A number of automated methods have been described in the literature and many additional methods for sample preparation, characterization, and screening continue to be developed. In the future it is expected that these methods and systems will be as commonplace and indispensable to the process of coatings and material development as the personal computer is today. En ligne : https://drive.google.com/file/d/1IS4df59OcaYQOMS7fN5Rtsw9TZWHdMko/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5513 [article]

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Focus on coatings R&D : New research methods creating possibilities / Cynthia Challener in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 30-36 Titre : Focus on coatings R&D : New research methods creating possibilities Type de document : texte imprimé Auteurs : Cynthia Challener, Auteur Année de publication : 2005 Article en page(s) : p. 30-36 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : For well over 100 years, innovation has enabled the paint and coatings industry to offer novel products for new substrates, ever better products with improved performance, and products with reduced environmental impact. Despite the gains made in this time, significant gaps in knowledge and understanding remain. Research approaches such as design of experiment (DOE), high throughput experimentation (HTE), combinatorial methods (Combi), and data mining (DM) now being applied to coatings R&D aim to fill those gaps and may lead to many new opportunities for the industry. All of these methods have been around for many years. DOE was first introduced in the early 1900s for factorial designs. Mixture designs for studying formulations were developed in the 1950s. The pharmaceutical industry has utilized combinatorial chemistry and HTE in conjunction with DOE and DM for the development of novel drugs over the past 15 years or so. It has been only recently, though, that scientists and engineers in the paint and coatings industry have begun exploring the application of these research methods to the process, ingredient, and formulations development for paints and coatings. En ligne : https://drive.google.com/file/d/12rmPEomAC-Qv7xoWB2PKksPq89XoOj-_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5514 [article]

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Low energy UV-A radiation curable refinish primers and clearcoats / Ramesh Subramanian in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 38-41 Titre : Low energy UV-A radiation curable refinish primers and clearcoats Type de document : texte imprimé Auteurs : Ramesh Subramanian, Auteur ; Michael Dvorchak, Auteur ; Charles Gambino, Auteur ; Katherine Ratliff, Auteur Année de publication : 2005 Article en page(s) : p. 38-41 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : In recent years, the major emphasis in the coatings industry has been adapting to environmentally friendly technology that has all the key performance attributes of traditional solventborne systems. Lately, automotive OEMs have suggested the use of “greener coatings technologies” for the “end of line” repair and body-shop refinish applications. This “market pull” effect has rejuvenated interest among innovative resin manufacturers to bring novel concepts into this field. One such approach is the use of Ultraviolet-A (UVA) radiation-curable raw materials for primers and clearcoats. Various aliphatic urethane acrylates were screened for the right combination of coatings properties using high throughput screening. The few predicted formulations were subjected to rigorous performance tests to identify combinations that have fast dry time, adhesion, and sanding characteristics. The details of the formulations, evaluation methods, and the coatings properties will be presented. En ligne : https://drive.google.com/file/d/1lMesla9NmcsiK2xqxFe8nO7VLPhP0IjV/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5515 [article]

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New low-viscosity acrylic-urethane prepolymers and their acrylated oligomers for moisture and UV-curable coatings / Daniel B. Pourreau in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 42-48 Titre : New low-viscosity acrylic-urethane prepolymers and their acrylated oligomers for moisture and UV-curable coatings Type de document : texte imprimé Auteurs : Daniel B. Pourreau, Auteur ; Scott Smyth, Auteur Année de publication : 2005 Article en page(s) : p. 42-48 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : This article describes a new class of urethane acrylate oligomers for weatherable UV-curable systems. Unlike commercial urethane acrylates that are based on polyether or polyester polyols, this new class of urethane oligomers is based on acrylic polyols. These new acrylic polyols are unique in that they produce low-viscosity, nongelling urethane prepolymers with isophorone diisocyanate. These prepolymers can be further treated with hydroxy-functional acrylates such as hydroxyethylacrylate (HEA) or caprolactone acrylate (CA) to yield low-viscosity acrylated urethane acrylic oligomers. By replacing the polyester and polyether backbone in urethane acrylates with an acrylic backbone, this chemistry opens the door to more weatherable UV-curable coatings, with properties that approach two-component urethane systems. These new urethane acrylates were formulated into sprayable UV-curable coatings with properties that rival two-component urethanes. The influences of diluent monomer type and content, hydroxy acrylate, and solvents on coating viscosity, VOC content, and properties were evaluated En ligne : https://drive.google.com/file/d/1lS0Dv3L2Y8gw6zDovePu3tzPEWFYY8JX/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5516 [article]

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Comparison of 1K UV primer vs. Conventional 2K primers / Thomas J. Laginess in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 50-53 Titre : Comparison of 1K UV primer vs. Conventional 2K primers Type de document : texte imprimé Auteurs : Thomas J. Laginess, Auteur Année de publication : 2005 Article en page(s) : p. 50-53 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : The objective of this article is to compare the properties of a one-component (1K) UV primer versus conventional two-component (2K) primers used in the automotive refinish industry. A 1K UV urethane primer will be compared against a 2K urethane primer and 2K epoxy primer. The comparisons between the primers will be adhesion to metal substrates, humidity resistance, stone chip resistance, chemical resistance, and film hardness. The curing sources for the UV primer were lights that only produce wavelengths in the UVA and UVV range. The use of other UV wavelength ranges (UVB and UVC) is not feasible in refinish repair. These comparisons will illustrate the advantages of UV chemistry and will allow the user to understand the potential advantages of a UV primer and the possible effects on the industry. En ligne : https://drive.google.com/file/d/1Qgzc8mjNW3c_SB67rzQ_w23dELwiSWG8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5517 [article]

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Development of soft feel coatings with waterborne polyurethanes / Lichang Zhou in COATINGS TECH, Vol. 2, N° 15 (04/2005)  

[article]  inCOATINGS TECH > Vol. 2, N° 15 (04/2005) . - p. 54-60 Titre : Development of soft feel coatings with waterborne polyurethanes Type de document : texte imprimé Auteurs : Lichang Zhou, Auteur ; Bernard Koltisko, Auteur Année de publication : 2005 Article en page(s) : p. 54-60 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 667.9 Revêtements et enduits Résumé : Soft feel coatings applied over plastic substrates are widely used in automotive interiors and consumer products. These coatings provide a luxurious look and leather-like texture to hard plastic surfaces. Traditionally, two-component solvent-based polyurethanes have been used in these applications. In recent years, waterborne polyurethane formulations with lower volatile organic compounds have become the choice for soft feel coatings. In this article, the development of soft feel coatings with waterborne polyurethane technology will be presented. The performance of soft feel coatings based on waterborne polyisocyanates with polyester, acrylic polyols, and/or polyurethane dispersions will be discussed. En ligne : https://drive.google.com/file/d/18dm5e1CTY_RdyZb40YmxnmZ1jGhz3qs-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5518 [article]

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