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公开(公告)号：EP4173804A1
公开(公告)日：2023-05-03
申请号：EP22194795.5
申请日：2022-09-09
发明人： ZHANG, Jiaxin , XING, Youdao , WANG, Zhen , LI, Baisong
IPC分类号： B29C64/124 , B29C64/214 , B29C64/227 , B29C64/245 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： The present disclosure belongs to the technical field of 3D printers, and a 3D printer and a 3D printing method are disclosed. The 3D printer comprises a main table top (1), a first linear driving mechanism (2), a second linear driving mechanism (3), a printing platform (4) and an optical machine scraper assembly (5). The main table top (1) comprises a horizontal table top (11) and a vertical table top (12) which are perpendicular to each other, and a resin tank (111) is provided in the horizontal platform (11); and the first linear driving mechanism (2) and the second linear driving mechanism (3) are installed at the two ends of the vertical table top (12), the first linear driving mechanism (2) is used for driving the printing platform (4) to move up and down, and the second linear driving mechanism (3) is used for driving the optical machine scraper assembly (5) to move up and down.
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2.发明公开
公开(公告)号：EP4194415A1
公开(公告)日：2023-06-14
申请号：EP22761934.3
申请日：2022-07-08
发明人： ZHANG, Jiaxin , NIE, Quanyi , ZHAO, Lijia , YU, Yong , DU, Zhenyu , ZHENG, Jingjing
摘要： Provided are a fluorescent glass ceramic with high transparency and a preparation method thereof. The fluorescent glass ceramic includes the following raw materials by mass percentage: 63 wt% to 70 wt% of SiO 2 , 13 wt% to 16 wt% of Li 2 O, 1 wt% to 6 wt% of Al 2 O 3 , 1 wt% to 10 wt% of K 2 O, 2 wt% to 6 wt% of P 2 O 5 , 0.5 wt% to 3.5 wt% of CeO 2 , 0 wt% to 4 wt% of an additive, 1 wt% to 4 wt% of a lanthanide oxide with an atomic number of 59 to 71, and 0 wt% to 8 wt% of a colorant. The fluorescent glass ceramic has a lithium metasilicate crystal as a principal crystalline phase, and the lithium metasilicate crystal has a layered or plate-like structure and a grain size of 0.1 µm to 1.5 µm. The fluorescent glass ceramic does not include pentavalent/hexavalent metal oxides. By optimizing a composition ratio of the raw materials and further controlling heat treatment conditions during the preparation process, an obtained lithium metasilicate-based glass ceramic has a fluorescent effect, high transparency, and extremely easy processing properties that are conducive to mass production.
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3.发明公开
公开(公告)号：EP4144334A1
公开(公告)日：2023-03-08
申请号：EP22192422.8
申请日：2022-08-26
发明人： ZHANG, Jiaxin , LIU, Qianqian , QIAO, Chunmei
摘要： Disclosed are a dental gradient color-resin ceramic restoration material and a preparation method thereof. The method includes: preparing at least two paste materials with different colors, respectively dispersing the paste materials with different colors to obtain at least two granular materials with different colors; spreading the at least two granular materials with different colors to be flat in a mould in sequence to obtain at least two layers, and then tightly combining the at least two layers to obtain a semi-finished product of a gradient color-resin ceramic restoration material; polymerizing and curing the semi-finished product to obtain a multilayer gradient color-resin ceramic restoration material.
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公开(公告)号：EP4442660A1
公开(公告)日：2024-10-09
申请号：EP22913285.7
申请日：2022-07-08
发明人： ZHANG, Jiaxin , NIE, Quanyi , ZHENG, Jingjing , WANG, Zhe , WEI, Linlin
IPC分类号： C03C10/04 , C03C12/00 , C03C1/04 , A61K6/882 , A61K6/818 , A61K6/811 , A61K6/78 , C04B37/00 , C04B35/14 , C04B41/85
CPC分类号： Y02P40/60 , A61K6/40 , A61K6/822 , A61K6/818 , A61K6/824 , A61K6/833 , C04B2235/322520130101 , C04B2235/322420130101 , C04B35/486 , C04B35/48 , C04B2235/322920130101
摘要： A ceramic material for improving surface adhesion of dental zirconia, a restorative material and a preparation method and a pasting method thereof are provided. The ceramic material includes SiO2, B2O3, GeO2, Al2O3, Li2O, Nb2O5, Na2O, ZrO2, P2O5, and a rare earth oxide. The ceramic material contains GeO2, on one hand, GeO2 can replace SiO2 in the ceramic material, thereby reducing the high-temperature melting temperature of glass, and saving the production cost, and on the other hand, GeO2 can effectively reduce the ratio of Si to Li, such that fine and uniform lithium disilicate crystals are formed after crystallization, and the adhesion strength with a zirconium oxide matrix is improved.
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5.发明公开
公开(公告)号：EP4378970A1
公开(公告)日：2024-06-05
申请号：EP22860070.6
申请日：2022-07-08
发明人： ZHANG, Jiaxin , LI, Hongwen , DUAN, Guangyuan , XING, Linlin
IPC分类号： C08F283/10 , C08F283/00 , C08F222/20 , C08F222/34 , C08F2/48 , C08K3/22 , C08K7/26 , C08K3/40 , B33Y70/10 , A61L27/10
CPC分类号： Y02P10/25
摘要： Provided in the present invention are a photothermal-curing resin composition, and a preparation method therefor and the use thereof. The resin composition comprises a combination of specific parts of a prepolymer, a monomer, a photoinitiator, a thermal initiator, fumed silica and a glass powder. By means of adding specific parts of the photoinitiator in conjunction with the thermal initiator, the completion rate of a curing reaction is increased, the resin composition is more thoroughly cured, and the residual monomer rate after curing is lower, and specific parts of the fumed silica and barium-containing glass powder are further added as fillers, such that the hardness, strength and wear resistance of the resin composition are effectively enhanced; therefore, a product resulting from the 3D printing of the finally obtained resin composition completely meets the requirements for being used as temporary crowns and bridges.
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