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11. 发明授权

US06127450A Dental restorative composite 失效
公开(公告)号：US06127450A
公开(公告)日：2000-10-03
申请号：US93778
申请日：1998-06-09
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： A61K6/00 , A61K6/083 , A61K6/087 , C08K5/20
CPC分类号： A61K6/083 , A61K6/0073
摘要： The present invention provides a resin-based dental restorative that exhibits high condensability, low volumetric shrinkage and low shrinkage stress. To this end, one or more of a rheological modifier, dispersant and fluorocopolymer are mixed with a methacrylate resin and a fine mineral filler in amounts effective to improve the condensability of the resulting composite to achieve amalgam-like condensation, to reduce the volumetric shrinkage to less than about 2% during polymerization, to improve wear resistance, and to provide a composite with generally improved physical properties.

12. 发明授权

US6010085A Agitator mill and method of use for low contamination grinding 有权
标题翻译：搅拌机和低污染研磨的使用方法
公开(公告)号：US6010085A
公开(公告)日：2000-01-04
申请号：US271639
申请日：1999-03-17
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： B02C17/16 , B02C17/18 , B02C17/22 , B02C17/00
CPC分类号： B02C17/16 , B02C17/161 , B02C17/163
摘要： The present invention provides a mill having an agitator and grinding chamber which is coated with a non-pigmented, abrasion resistant polymer and a method of using this mill to provide substantially pure ground particles. The polymer coating is typically a thermosetting polymer such as polyurethane or an elastomer such as a fluoroelastomer. The polymer coating provides an abrasion resistant layer between the milling media and the agitator as well as between the grinding chamber and the milling media to prevent spalling, thus increasing the purity of the resultant ground material. The agitator mill may optionally include a ceramic gap separator which is typically formed of stacked plates separated a predetermined distance by shims to separate the ground particles from the milling media in the grinder chamber, thus allowing only the ground particles to pass out of the grinding chamber.
摘要翻译：本发明提供了一种具有搅拌器和研磨室的研磨机，该研磨室涂覆有非着色的耐磨聚合物，以及使用该研磨机提供基本上纯的研磨颗粒的方法。聚合物涂层通常是热固性聚合物，例如聚氨酯或弹性体如含氟弹性体。聚合物涂层在研磨介质和搅拌器之间以及研磨室和研磨介质之间提供耐磨层以防止剥落，从而提高所得研磨材料的纯度。搅拌机可以可选地包括陶瓷间隙分离器，其通常由通过垫片隔开预定距离的堆叠板形成，以将研磨颗粒与研磨机室中的研磨介质分离，从而仅使研磨颗粒从研磨室。

13. 发明授权

US07625991B2 Method for making alkoxy-siloxane polyether carboxylates terminated with functional olefin groups 有权
标题翻译：用功能性烯基封端的烷氧基硅氧烷聚醚羧酸酯的制备方法
公开(公告)号：US07625991B2
公开(公告)日：2009-12-01
申请号：US11677380
申请日：2007-02-21
申请人： Christos Angeletakis , Matthias Stender
发明人： Christos Angeletakis , Matthias Stender
IPC分类号： C08G77/445
CPC分类号： A61K6/10 , C08G77/445 , C08G77/46
摘要： A resin that may be used, for example, in dental impression materials, and a method of making the resin. The resin comprises an alkoxy-siloxane polyester or polyether carboxylate backbone functionalized with at least two cycloolefin groups capable of undergoing a metathesis reaction. The method of making the resin comprises reacting a hydride terminated siloxane with a polyether or polyester diol containing propylene oxide and ethylene oxide fragments, and a cycloolefinic group functionalized hydroxyalkyl carboxylic acid ester, in the presence of a Group 3 or 13 catalyst.
摘要翻译：可用于例如牙科印模材料中的树脂，以及制造该树脂的方法。该树脂包括用至少两个能够进行复分解反应的环烯基团官能化的烷氧基 - 硅氧烷聚酯或聚醚羧酸酯骨架。制备树脂的方法包括使氢化物封端的硅氧烷与含有环氧丙烷和环氧乙烷片段的聚醚或聚酯二醇和环烯烃基官能化羟烷基羧酸酯在3或13族催化剂存在下反应。

14. 发明授权

US07060770B2 Metathesis-curable composition with a reaction control agent 失效
标题翻译：具有反应控制剂的易位固化组合物
公开(公告)号：US07060770B2
公开(公告)日：2006-06-13
申请号：US10430592
申请日：2003-05-06
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： C08F4/80
CPC分类号： C08G61/00
摘要： A composition curable by a metathesis reaction upon mixing its components and comprising an olefin-containing substrate, a metathesis catalyst, and a reaction control agent for slowing the progress of the metathesis reaction. The metathesis catalyst is a ruthenium or osmium curbene complex catalyst, such as one containing an alkylidene ligand with basicity higher than that of tricyclohexylphosphine (PCy3) and a neutral electron donor ligand with a basicity lower than that of PCy3, whereby the catalyst initiates the metathesis reaction of the composition upon mixing with the substrate. The reaction control agent is an organic compound that contains carbon-carbon double and/or triple bonds and one or more Group 14 atoms and is present in an amount effective to slow the progress of the metathesis reaction. The olefin containing substrate may be, for example, one or a combination of a di-, tri- or quadri-functional polydimethylsiloxane end-capped with norbornenylethyl groups or a polydimethylsiloxane tethered and end-capped with norbornenylethyl groups.
摘要翻译：通过复分解反应混合其组分可固化的组合物，其包含含烯烃的底物，复分解催化剂和用于减缓复分解反应进程的反应控制剂。复分解催化剂是钌或碲化ene络合物催化剂，例如含有碱性高于三环己基膦（PCY 3 N 3）的亚烷基配体的碱金属配合物催化剂，以及碱度低于 PCy 3，其中催化剂在与基材混合时引发组合物的复分解反应。反应控制剂是含有碳 - 碳双键和/或三键和一个或多个第14族原子并且以有效减缓复分解反应进程的量存在的有机化合物。含有烯烃的底物可以是例如一个或二末端，三官能或四官能聚二甲基硅氧烷末端封端的降冰片烯基乙基或聚二甲基硅氧烷连接并带有降冰片烯乙基封端的组合。

15. 发明授权

US06455029B1 Dental impression material utilizing ruthenium catalyst 有权
标题翻译：使用钌催化剂的牙印模材料
公开(公告)号：US06455029B1
公开(公告)日：2002-09-24
申请号：US09690236
申请日：2000-10-17
申请人： Christos Angeletakis , Mingfei Chen
发明人： Christos Angeletakis , Mingfei Chen
IPC分类号： A61K716
CPC分类号： A61K6/10
摘要： A composition for use as a dental impression material including a polymerizable telechelic oligomer or polymer curable by ring-opening metathesis polymerization, a filler system, and a ruthenium carbene complex catalyst, whereby the catalyst initiates ring-opening metathesis polymerization of the composition. The invention includes a paste/paste system in which a base paste includes the polymerizable telechelic oligomer or polymer and a filler system and in which a catalyst paste includes the catalyst dissolved in an inert solvent and a filler system. The telechelic oligomer or polymer may be, for example, a polydimethylsiloxane end-functionalized with norbornenyl groups. The catalyst may be, for example, a ruthenium carbene complex with a ligand having a basicity higher than tricyclohexylphosphine. The composition of the present invention exhibits reduced sensitivity to sulfur impurities.
摘要翻译：一种用作牙科印模材料的组合物，其包括可聚合的遥爪低聚物或通过开环易位聚合可固化的聚合物，填料体系和钌卡宾配合物催化剂，由此催化剂引发组合物的开环易位聚合。本发明包括糊状物/糊剂系统，其中基础糊料包括可聚合的远端低聚物或聚合物和填料体系，其中催化剂浆料包括溶解在惰性溶剂中的催化剂和填料体系。遥爪低聚物或聚合物可以是例如用降冰片烯基端基官能化的聚二甲基硅氧烷。催化剂可以是例如具有碱性高于三环己基膦的配位体的钌卡宾络合物。本发明的组合物对硫杂质的敏感性降低。

16. 发明授权

US06395803B1 Dental restorative composite 有权
标题翻译：牙齿修复复合材料
公开(公告)号：US06395803B1
公开(公告)日：2002-05-28
申请号：US09567547
申请日：2000-05-05
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： C08K6083
CPC分类号： A61K6/083 , A61K6/0073 , C08L33/00
摘要： The present invention provides a resin-based dental restorative that exhibits high condensability, low volumetric shrinkage and low shrinkage stress. To this end, one or more of a rheological modifier, dispersant and fluorocopolymer are mixed with a methacrylate resin and a fine mineral filler in amounts effective to improve the condensability of the resulting composite to achieve amalgam-like condensation, to reduce the volumetric shrinkage during polymerization, to improve wear resistance, and to provide a composite with generally improved physical properties.
摘要翻译：本发明提供一种表现出高冷凝性，低体积收缩率和低收缩应力的树脂类牙科修复剂。为此，将一种或多种流变改性剂，分散剂和含氟共聚物与甲基丙烯酸酯树脂和细矿物填料混合，其量有效地改善所得复合材料的冷凝性以实现汞齐缩合，以减少在聚合，改善耐磨性，并提供具有通常改善的物理性能的复合材料。

17. 发明授权

US06359090B1 Polymerizable dispersant 有权
标题翻译：可聚合分散剂
公开(公告)号：US06359090B1
公开(公告)日：2002-03-19
申请号：US09573752
申请日：2000-05-18
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： A61K6083
CPC分类号： C08F30/02 , A61K6/083 , C08F2/18 , C08L33/00
摘要： A polymerizable monophosphate ester dispersant, a highly-filled nonaqueous suspension containing the polymerizable monophosphate ester dispersant, and a method for forming cured articles by copolymerization of the resin matrix and dispersant in the suspension. Inclusion of the dispersant in a suspension of resin and solid particulate material enables an increase in the solid loading, which results in reduced shrinkage, a lower coefficient of thermal expansion and generally improved physical properties in an article cured therefrom.
摘要翻译：一种可聚合单磷酸酯分散剂，含有可聚合单磷酸酯分散剂的高填充非水悬浮液，以及通过树脂基体和分散剂在悬浮液中共聚形成固化物的方法。将分散剂包含在树脂和固体颗粒材料的悬浮液中能够增加固体负载，这导致缩短的收缩率，较低的热膨胀系数和在其中固化的制品中通常改善的物理性能。

18. 发明授权

US06300390B1 Dental restorative composite 有权
标题翻译：牙齿修复复合材料
公开(公告)号：US06300390B1
公开(公告)日：2001-10-09
申请号：US09306628
申请日：1999-05-06
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： A61K6083
CPC分类号： A61K6/083 , C08L33/00
摘要： The present invention provides a resin-based dental restorative that exhibits low volumetric shrinkage, high filler loading and the high strength required for load bearing restorations, yet maintains a glossy appearance, even after substantial wear. To this end, a dispersant is mixed with a methacrylate resin and a structural filler having a mean particle size between about 0.05 &mgr;m and about 0.50 &mgr;m. The composite is useful in stress bearing restorations and in cosmetic restorations. The structural filler used is typically ground to a mean particle size of less than 0.5 &mgr;m and also includes a microfill having a mean particle size less than 0.05 &mgr;m to improve handling and mechanical characteristics. The preferred dental composites maintain their surface finish even after substantial use and also have the strength properties of hybrid composite resins.
摘要翻译：本发明提供了一种具有低体积收缩率，高填料载荷和承载修复体所需的高强度的树脂基牙修复剂，而且即使在实质磨损之后也保持光泽的外观。为此，分散剂与甲基丙烯酸酯树脂和平均粒径在约0.05μm至约0.50μm之间的结构填料混合。该复合材料可用于应力承载修复体和化妆品修复体。所使用的结构填料通常被研磨成小于0.5μm的平均粒度，并且还包括平均粒度小于0.05μm的微粉，以改善处理和机械特性。优选的牙科复合材料即使在大量使用后也保持其表面光洁度，并且还具有混合复合树脂的强度性能。

19. 发明授权

US6020395A Homogeneous microfilled dental composite material and method of preparation 失效
标题翻译：均质微孔牙科复合材料及其制备方法
公开(公告)号：US6020395A
公开(公告)日：2000-02-01
申请号：US3307
申请日：1998-01-06
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： A61K6/083 , C08K3/34 , A61K6/08
CPC分类号： A61K6/083 , Y10T428/2995
摘要： A homogeneous microfilled dental composite material comprised of a mixture of polymerizable monomers and an inorganic filler, wherein said filler is comprised of silane treated fused silica aggregates having a size ranging from submicron to about 160 .mu.m. The aggregates are comprised of agglomerates of fumed silica having an average agglomerate size in the range of approximately 0.5 to 50 .mu.m, and the agglomerates are comprised of primary particles of fumed silica having an average particle size in the range of approximately 1 to 100 nm. The primary particles are interconnected by siloxane bridges formed by burning an organosilane coating on the fumed silica.
摘要翻译：由可聚合单体和无机填料的混合物组成的均匀的微孔糊状牙科复合材料，其中所述填料由尺寸范围为亚微米至约160μm的硅烷处理的熔融二氧化硅聚集体组成。聚集体由平均聚集体尺寸在约0.5至50μm范围内的热解法二氧化硅的附聚物组成，并且附聚物由平均粒度在约1至100nm范围内的热解法二氧化硅的一次颗粒组成。初级颗粒通过在热解二氧化硅上燃烧有机硅烷涂层形成的硅氧烷桥互连。

20. 发明授权

US10307345B2 Hydrophilic impression material with improved storage stability 有权
公开(公告)号：US10307345B2
公开(公告)日：2019-06-04
申请号：US15341325
申请日：2016-11-02
申请人： Christos Angeletakis
发明人： Christos Angeletakis
IPC分类号： A61K6/10 , C08L83/04 , C08L83/12 , C08K5/06 , C08K3/36 , A61K6/00
摘要： Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.

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