PHOSPHATE-BASED DENTAL INVESTING MATERIAL
    1.
    发明申请
    PHOSPHATE-BASED DENTAL INVESTING MATERIAL 有权
    基于磷酸盐的牙科投资材料

    公开(公告)号:US20070283850A1

    公开(公告)日:2007-12-13

    申请号:US11761013

    申请日:2007-06-11

    IPC分类号: C09K3/00 C04B28/34

    CPC分类号: A61K6/033 B22C1/185

    摘要: In order to produce a dental cast product having the flat surface, by blending a dispersant with a phosphate-based investing material to improve the dispersability of an aggregate powder and a binder powder so as to prevent a agglomeration of the aggregate powder and the binder powder thereby forming a wall surface of an cavity in a mold to be flat, and also to make more various kinds of powders available for the aggregate powder without restriction to quartz, cristobalite and tridymite, the phosphate-based dental investing material comprising a mixed powder including an aggregate powder and a phosphate-based binder powder, and a liquid, with an alkaline metal salt of phosphoric acid being added to at least one of the mixed powder and the liquid.

    摘要翻译: 为了制造具有平坦表面的牙科铸造产品,通过将分散剂与磷酸盐类投资材料混合以改善聚集粉末和粘合剂粉末的分散性,以防止聚集粉末和粘合剂粉末的聚集 从而在模具中形成为平坦的空腔的壁表面,并且还可以制备更多种类的可用于骨粉末的粉末,而不限于石英,方英石和鳞石英,该磷酸盐基牙科投资材料包括混合粉末,包括 聚集粉末和磷酸盐基粘合剂粉末以及将磷酸碱金属盐添加到混合粉末和液体中的至少一种的液体。

    Phosphate-based dental investing material
    2.
    发明授权
    Phosphate-based dental investing material 有权
    基于磷酸盐的牙科投资材料

    公开(公告)号:US07442246B2

    公开(公告)日:2008-10-28

    申请号:US11761013

    申请日:2007-06-11

    IPC分类号: A61K6/00 C04B12/02

    CPC分类号: A61K6/033 B22C1/185

    摘要: In order to produce a dental cast product having the flat surface, by blending a dispersant with a phosphate-based investing material to improve the dispersability of an aggregate powder and a binder powder so as to prevent a agglomeration of the aggregate powder and the binder powder thereby forming a wall surface of an cavity in a mold to be flat, and also to make more various kinds of powders available for the aggregate powder without restriction to quartz, cristobalite and tridymite, the phosphate-based dental investing material comprising a mixed powder including an aggregate powder and a phosphate-based binder powder, and a liquid, with an alkaline metal salt of phosphoric acid being added to at least one of the mixed powder and the liquid.

    摘要翻译: 为了制造具有平坦表面的牙科铸造产品,通过将分散剂与磷酸盐类投资材料混合以改善聚集粉末和粘合剂粉末的分散性,以防止聚集粉末和粘合剂粉末的聚集 从而在模具中形成为平坦的空腔的壁表面,并且还可以制备更多种类的可用于骨粉末的粉末,而不限于石英,方英石和鳞石英,该磷酸盐基牙科投资材料包括混合粉末,包括 聚集粉末和磷酸盐基粘合剂粉末以及将磷酸碱金属盐添加到混合粉末和液体中的至少一种的液体。

    Method of making dental wax pattern
    3.
    发明授权
    Method of making dental wax pattern 失效
    制作牙蜡图案的方法

    公开(公告)号:US5685356A

    公开(公告)日:1997-11-11

    申请号:US495394

    申请日:1995-06-28

    CPC分类号: A61C9/00

    摘要: A method of making a wax pattern by using a dental gypsum model is provided, which comprises the steps of applying a release agent on said gypsum model, coating on the thus applied surface a coating material which leaves no ash upon incinerated at 700.degree. C., and applying a wax melt on said surface. When the wax melt is applied on the gypsum model, the wax is in no direct contact with the release agent, and it is unlikely that gaps may be formed between the wax pattern and the gypsum model or a pad of the wax pattern may warp; that is, the additional operation so far needed for correcting such warpage can be dispensed with, so making precise casting possible. In addition, the presence of the release agent enables removal of the wax pattern to be done as conventional. Furthermore, when the thus removed wax pattern is invested in a investment material to incinerate the wax pattern, no ash of the above coating material remains in the cavity, so that metal can be cast with no defect.

    摘要翻译: 提供了一种通过使用牙膏模型制作蜡图案的方法,其包括以下步骤:在所述石膏模型上涂布脱模剂,在这样涂覆的表面上涂覆在700℃焚烧时不产生灰分的涂料。 并且在所述表面上施加蜡熔体。 当蜡熔体被施加在石膏模型上时,蜡不与脱模剂直接接触,并且不可能在蜡图案和石膏模型之间形成间隙,或者蜡图案的垫可能翘曲; 也就是说,目前为了纠正这种翘曲而需要的附加操作可以省略,因此可以进行精确的铸造。 此外,脱模剂的存在使得可以如常规地除去蜡图案。 此外,当将如此除去的蜡图案投资于投料材料以焚烧蜡图案时,上述涂层材料中的灰分不会残留在空腔中,从而可以铸造没有缺陷的金属。

    Dental investing material
    4.
    发明授权
    Dental investing material 失效
    牙科投资材料

    公开(公告)号:US5820662A

    公开(公告)日:1998-10-13

    申请号:US899046

    申请日:1997-07-23

    CPC分类号: B22C1/02 B22C1/00

    摘要: A dental investing material is disclosed which comprises a combination of: (a) quartz and/or cristobalite, (b) a phosphate binder, and (c) aluminous cement, wherein said dental investing material is further added with tridymite and magnesium silicate. The disclosed dental investing material shows minimized expansion during hardening, significant expansion during heating and develops no cracks when heated at a conventional heating rate.

    摘要翻译: 公开了一种牙科投资材料,其包括以下组合:(a)石英和/或方英石,(b)磷酸盐粘合剂和(c)含铝水泥,其中所述牙科投资材料进一步加入鳞状石英和硅酸镁。 所公开的牙科投资材料在硬化期间显示最小化的膨胀,在加热期间显着膨胀,并且以常规加热速率加热时不产生裂纹。

    Dental refractory model materials
    5.
    发明授权
    Dental refractory model materials 失效
    牙科耐火模型材料

    公开(公告)号:US5298200A

    公开(公告)日:1994-03-29

    申请号:US76688

    申请日:1993-06-15

    CPC分类号: C04B35/16

    摘要: A dental refractory model material comprises as powdery components 5 to 20% by weight of a soluble phosphate, 5 to 20% by weight of magnesium oxide and 10 to 50% by weight of at least one selected from the group of alumina, zirconia, fused quartz, mullite, spinel and cordierite with the balance being crystalline quartz and crystobalite. The refractory model material also includes a liquid component such as a colloidal silica dispersion.

    摘要翻译: 牙科耐火模型材料包含粉末状组分5至20重量%的可溶性磷酸盐,5至20重量%的氧化镁和10至50重量%的至少一种选自氧化铝,氧化锆,稠合 石英,莫来石,尖晶石和堇青石,其余为结晶石英和方石英。 耐火模型材料还包括液体组分,例如胶体二氧化硅分散体。

    Method for processing dental acrylic resins
    6.
    发明授权
    Method for processing dental acrylic resins 失效
    牙科丙烯酸树脂加工方法

    公开(公告)号:US6063831A

    公开(公告)日:2000-05-16

    申请号:US182009

    申请日:1998-10-29

    摘要: A method for using dental acrylic resins, the method comprising mixing a liquid monomer of methyl methacrylate with a polymer powder of methyl methacrylate, forming the mixture into an arbitrary shape by molding, filling, applying or other means, and then polymerizing and curing the formed mixture, wherein organic compounds selected from acryloyl morpholine, a coumarone resin, vinyl stearate, polyvinyl acetate, and alcoholic surfactants are previously added to the liquid monomer as a shrinkage controlling agent for lowering a curing shrinkage caused by the polymerization, is disclosed. According to the invention, not only the curing shrinkage rate of the curing shrinkage generated at the time of polymerization can be readily lowered to 0.3% or less, but also the method of the invention can be applied to a denture, a denture base, a casting pattern, fillers or cements as in the conventional techniques.

    摘要翻译: 一种使用牙科用丙烯酸树脂的方法,所述方法包括将甲基丙烯酸甲酯的液体单体与甲基丙烯酸甲酯的聚合物粉末混合,通过模塑,填充,施加或其它方式将混合物形成任意形状,然后聚合和固化所形成的 混合物,其中预先向液体单体中加入选自丙烯酰吗啉,香豆酮树脂,硬脂酸乙烯酯,聚乙酸乙烯酯和醇类表面活性剂的有机化合物作为用于降低由聚合引起的固化收缩的收缩控制剂。 根据本发明,不仅聚合时产生的固化收缩的固化收缩率可以容易地降低到0.3%以下,而且本发明的方法也可以应用于义齿,义齿基, 铸造图案,填料或水泥,如常规技术。