| Titre : |
Novel epoxy resins for container waterborne coatings with improved flexibility |
| Type de document : |
texte imprimé |
| Auteurs : |
Duane S. Treybig, Auteur ; David P. Sheih, Auteur |
| Année de publication : |
1994 |
| Article en page(s) : |
p. 41-45 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Tags : |
'Peinture eau' Liant 'Epoxyde résine' Feuil 'Propriété mécanique' Flexibilité Utilisation Bidon |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
New two-piece can technologies are increasing market demand for more flexible can coatings. In response to the demand, several different waterborne epoxy resin systems have been prepared by synthesizing epoxy resin with new flexible backbones and converting them to onium forms. More specifically, the coating epoxy resins were made by modifying the resin backbone with extended aliphatic spacers of either bisphenol or diepoxide structures. These flexible epoxy resins were then converted to onium forms by reacting the epoxide group with an aqueous mixture of lactic acid and nicotinamide. When the resulting aqueous dispersions are formulated and cured with melamine-formaldehyde resin, the resultant coatings exhibit improved flexibility and pasteurization resistance as compared to coatings from high molecular weight diglycidyl ether of bisphenol A epoxy resin controls. The new epoxy resin backbone chemistry, waterborne conversion chemistry, and coating properties are described in this paper. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Resin advancement - Onium conversion - Coating formulation - Coating tests |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18607 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 830 (03/1994) . - p. 41-45
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