| Titre : |
A review on blocked isocyanates in coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
S. Subramani, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 33-44 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The preparation of many coatings, foams and elastomers involves a rapid crosslinking reaction between isocyanates and hydroxy functional resins. Because the isocyanate functionality is highly reactive, it must be isolated from the functional resin prior to use. The desirability of one-pack systems for many end use applications has led to the development of blocked isocyanate materials. Blocked polyisocyanates have picked up with technical progress in the coatings field and are promising a bright future. They should be considered as an integral part of polyurethane coatings technology. |
| Note de contenu : |
- General properties of polyurethane coatings
- Polyurethane coating raw material
- Technical advantage of blocked isocyanates
- Blocking agents
- Phenol blocked polyisocyanates
- Alcohols
- Caprolactam blocked polyisocyanates
- β-dicarbonyl blocking agents : Malonates and acetoacetates
- Bisulfite blocked polyisocyanates
- Formation and hydrolysis of bisulfite blocked isocyanates
- Oxime blocked polyisocyanates
- Cationic electrodeposition
- Hydroxamic acid esters
- Triazoles
- Heterocyclic ring opening reactions
- Applications and limitations of blocked isocyanates |
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in PAINTINDIA > Vol. LII, N° 2 (02/2002) . - p. 33-44
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A review on blocked isocyanates in coatings in PAINTINDIA, Vol. LII, N° 2 (02/2002)
