G - Physics – 03 – F
Patent
G - Physics
03
F
G03F 7/027 (2006.01) G03C 9/08 (2006.01) G03F 7/00 (2006.01) G03F 7/004 (2006.01) G03F 7/038 (2006.01)
Patent
CA 2398160
The present invention relates to a liquid, radiation-curable composition containing a cationically activated component, a cationic photoinitiator or a mixture of cationic photoinitiators, at least an effective amount of a compound having at least one terminal and/or pendant unsaturated group and at least one hydroxyl group in its molecule. The composition is free of free radical initiator. The compositions described herein are particularly useful in stereolithography process systems for producing three-dimensional articles.
L'invention concerne une composition liquide durcissable par rayonnement, contenant un composant activé de manière cationique, un photo-initiateur cationique ou un mélange de photo-initiateurs cationiques, au moins une dose efficace d'un composé possédant dans sa molécule au moins un groupe non saturé terminal et/ou latéral, et au moins un groupe hydroxyle. Cette composition est exempte d'initiateurs de radicaux libres. Les compositions de l'invention sont particulièrement utiles dans les systèmes de traitement par stéréolithographie pour la production d'articles tridimensionnels.
Johnson David L.
Leyden Richard Noel
Patel Ranjana C.
Fetherstonhaugh & Co.
Vantico Ag
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