KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY (République de Corée)
Inventeur(s)
Kim, Won Ho
Cho, Sung Chan
Kim, Hye In
Kim, Sun Woog
Jeong, Gyu Jin
Kang, Tae Wook
Abrégé
The present invention relates to a phosphor composition and a preparation method therefor and, specifically, to silicate-based, phosphate-based, and borate-based phosphor compositions and preparation methods therefor, wherein the compositions have similar luminescence characteristics to natural teeth of a subject to be treated, by doping a host material with metal cations of rare earth elements (REE) at a predetermined ratio.
C09K 11/77 - Substances luminescentes, p. ex. électroluminescentes, chimiluminescentes contenant des substances inorganiques luminescentes contenant des métaux des terres rares
The present invention relates to a three-dimensional molded article washing device capable of generating a vortex or vibration in washing liquid through the rotation of a rotating rod driven by means of a magnetic field, and of washing a molded article manufactured by means of a three-dimensional printer with the washing liquid in which the vortex or vibration is generated, the three-dimensional molded article washing device comprising: a magnetic field generating device for generating a magnetic field through power supplied from the outside in order to perform magnetic stirring; a washer tank which has an open top with a polyhedral shape so as to be detachably mounted on the magnetic field generating device, and which has a washing liquid vortex generating part for generating a vortex in the washing liquid accommodate therein; a universal jig which is detachably mounted in the washer tank, and which fixes the position of the three-dimensional printed molded article so that the three-dimensional printed molded article is positioned in the washing liquid; and a cover which has predetermined weight and which covers the top of the washer tank, wherein the washing liquid vortex generating part generates a vortex in the washing liquid by means of the magnetic stirring of the magnetic field generating device, thereby washing the three-dimensional printed molded article.
B08B 3/12 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p. ex. par la chaleur, par l'électricité ou par des vibrations par des vibrations soniques ou ultrasoniques
B08B 3/10 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p. ex. par la chaleur, par l'électricité ou par des vibrations
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
3.
DENTAL OR TECHNICAL ZIRCONIA SURFACE TREATMENT METHOD USING ETCHING AND NEUTRALIZING KIT, AND ETCHING AND NEUTRALIZING REACTION VESSEL THEREFOR
The present invention relates to a method for pre-treating a surface of a dental restoration and an etching and neutralizing reaction vessel for zirconia surface treatment, the method comprising: an etching gel application step of applying an etching gel to zirconia; a neutralizing gel application step of applying a neutralizing gel to a cover portion of a reaction vessel; a heat supplying step of supplying heat to the reaction vessel to simultaneously perform etching and neutralizing; and a washing step of feeding a washing solution into the cover portion of the reaction vessel.
C04B 41/91 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiquesTraitement de la pierre naturelle de céramiques uniquement impliquant l'enlèvement d'une partie des matières des objets traités, p. ex. par attaque chimique
A61K 6/80 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
4.
METHOD FOR ETCHING AND NEUTRALIZING DENTAL OR DENTAL-TECHNICAL ZIRCONIA
The present invention relates to a method for pretreating the surface of a dental repair material, comprising the steps of: coating zirconia with an etching gel; coating the coated etching gel with a neutralization gel; etching and neutralizing the zirconia coated with the etching gel and the neutralization gel; and washing the etched and neutralized zirconia. Hazardous factors such as hydrofluoric acid vapor to be generated during etching are removed such that worker safety is guaranteed and work efficiency is improved.
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