| Titre : |
New Tin- and mercury-free organometallic catalysts for case urethane applications: new catalysts offer performance characteristics in multiple applications |
| Type de document : |
texte imprimé |
| Auteurs : |
John Florio, Auteur ; Ravi Ravichandran, Auteur ; Bing Hsieh, Auteur ; Robert Coughlin, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 20-26 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Catalyse
Catalyseurs à base de métaux de transition
Colles:Adhésifs
Composés organométalliques
Elastomères
Fourier, Spectroscopie infrarouge à transformée de
Isocyanates
mercure
Polyuréthanes
Revêtements:Peinture
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
I socyanates react with compounds that have active hydrogens. For example, in coating applications, isocyanates are typically reacted with polyols to form polyurethanes, or with primary and secondary amines to form polyureas. Catalysis of the polyol/isocyanate reaction, which is often required to develop sufficient cure response, can be achieved with a variety of compounds. The most common catalysts for the polyol/isocyanate reactons include metal salts, organometallic compounds and tertiary amines. Generally speaking, bases, acids and even water can, in some cases, accelerate isocyanate reactions. |
| Note de contenu : |
- COATINGS : Catalys selectivity - Selectivity studies - Catalysis of a pigmented two-component waterborne urethane system - Ambient cure - Hydrolytic stability of K-KAT XK-614 in a clear two-component waterborne urethane system.
- NON-COATINGS APPLICATIONS : Gel profile test methods - Gel profile studies of weak exothermic reactions - Urethane elastomer - Urethane adhesive - Gel profile studies of strong exothermic reactions. |
| En ligne : |
http://www.adhesivesmag.com/articles/88772-new-tin--and-mercury-free-organometal [...] |
| Format de la ressource électronique : |
Web |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11913 |
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 18, N° 8 (08/2011) . - p. 20-26
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