DENTALMATERIALIEN MIT LICHTINDUZIERTER REVERSIBLER FARBGEBUNG
申请人:Ivoclar Vivadent AG
公开号:EP3184096A1
公开(公告)日:2017-06-28
Radikalisch polymerisierbarer Dentalwerkstoff mit photochromen Eigenschaften, der mindestens eine Verbindung der Formel (I)
und ggf. radikalisch polymerisierbare Monomere, Initiator für die radikalische Polymerisation und weitere Komponenten enthält.
Dental materials with light-induced reversible coloring
申请人:Ivoclar Vivadent AG
公开号:US11013669B2
公开(公告)日:2021-05-25
The invention relates to a radically polymerizable dental material having photochromic properties, which contains at least one compound of formula (I) and optionally radically polymerizable monomers, an initiator for radical polymerization and other components.
An image forming medium includes a substrate and an imaging layer coated on or impregnated into a substrate, where the imaging layer is formed of an imaging composition that includes a solvent or a polymeric binder, and a photochromic material selected from substituted fulgides and substituted dithienylethenes, dissolved or dispersed in the solvent or polymeric binder, and where the imaging composition exhibits a reversible homogeneous-heterogeneous transition between a colorless state, an intermediate colorless or colored erasable state, and a final colored stable state, the photochromic material converting from the colorless state to the colored stable state upon irradiation with light of a first wavelength and converting from the colored stable state to the colorless state upon exposure to heat and light.