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Isocyanate-free routes : / Jurgen van Hollen in EUROPEAN COATINGS JOURNAL (ECJ), N° 06-07/2007 (07-08/2007)

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inEUROPEAN COATINGS JOURNAL (ECJ) > N° 06-07/2007 (07-08/2007) . - p. 10-11

Titre :	Isocyanate-free routes : : Environmentally friendly alternatives to high performance coatings
Type de document :	texte imprimé
Auteurs :	Jurgen van Hollen, Auteur
Année de publication :	2007
Article en page(s) :	p. 10-11
Note générale :	Bibliogr. (encart de 12 p. entre les p. 18-19)
Langues :	Anglais (eng)
Catégories :	Copolymère uréthane acrylique Isocyanates -- Suppression ou remplacement Oligomères Polyuréthanes Revêtements organiques Revêtements sans isocyanates
Index. décimale :	667.9 Revêtements et enduits
Résumé :	Ever since polyurethanes were first discovered in the late thirties they have found an ever increasing number of applications due to they unique properties. Most of them are attributed to the ability to organize themselves in the so called hard and soft micro domains. As their production involves toxic raw materials such as isocyanates there has been a continuous search to find alternative routes which make use of safer chemicals. Despite many efforts no-one has been able to product high molecular weight linear polyurethanes. Acrylated oligourethanes have been produced in commercial quantities without using isocyanates and they have given rise to high performing coatings after cross linking initiated withultraviolet radiation.
Note de contenu :	- Several alternatives proposed - The cyclic carbonate route - Chemical and enzymatic transurethanisation - Bright future - Fig. 1 : Formation of a b-hydroxy-urethane group - Fig. 2 : Production of a methacrylated carbonate with carbondioxide
En ligne :	https://drive.google.com/file/d/1yJ_bncWP9bTc1q8AbmNRHOUqPJzB0TSt/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40653

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