An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.
The present invention relates to dental polymerizable composite materials (curable dental compositions) comprising one or more plasticizers comprising a tricyclic structural element, to dental materials (polymers), obtainable by curing from the dental polymerizable composite materials comprising one or more plasticizers comprising a tricyclic structural element, to processes for producing a dental material and to dental curable composite materials for use in a therapeutic method in the production of a dental material.
Härtbares Gemisch umfassend Weichmacher mit einem polyalicyclischen Strukturelement zur Anwendung bei der Herstellung dentaler Werkstoffe.
申请人:VOCO GmbH
公开号:EP2623086A2
公开(公告)日:2013-08-07
Die vorliegende Erfindung betrifft dentale härtbare Gemische oder Massen umfassend Weichmacher mit einem polyalicyclischen Strukturelement zur Anwendung in einem therapeutischen Verfahren bei der Herstellung dentaler Werkstoffe.
Die vorliegende Erfindung betrifft dentale polymerisierbare Kompositmaterialien (härtbare Dentalmassen) enthaltend einen oder mehrere Weichmacher umfassend ein tricyclisches Strukturelement, dentale Werkstoffe (Polymerisate), durch Härten erhältlich aus den dentalen polymerisierbaren Kompositmaterialien enthaltend einen oder mehrere Weichmacher umfassend ein tricyclisches Strukturelement, Verfahren zur Herstellung eines dentalen Werkstoffs sowie dentale härtbare Kompositmaterialien zur Anwendung in einem therapeutischen Verfahren bei der Herstellung eines dentalen Werkstoffs.
An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.