Cement composition
    1.
    发明授权
    Cement composition 失效
    水泥组成

    公开(公告)号:US5051453A

    公开(公告)日:1991-09-24

    申请号:US304200

    申请日:1989-01-31

    IPC分类号: A61K6/083 C08K3/40

    摘要: Disclosed in a cement composition comprising an unsaturated carboxylic acid polymer and an alkaline earth metal aluminofluorosilicate glass, wherein the alkaline earth metal aluminofluorosilicate glass comprises (a) 50 to 95% by weight of coarse particles having a spherical shape and an F/Si ratio of at least 0.1 but lower than 0.6 and having a particle size larger than 3 .mu.m but not larger than 50 .mu.m and (b) 5 to 50% by weight of fine particles having an F/Si ratio of 0.6 to 5 and a particle size of up to 3 .mu.m.This cement composition gives a cured body having a good surface gloss and a high strength, and this cement composition has a good flowability and a good workability. Accordingly, the cement composition is valuable as a dental cement composition.

    摘要翻译: 本发明公开了一种包含不饱和羧酸聚合物和碱土金属铝氟硅酸盐玻璃的水泥组合物,其中碱土金属铝氟硅酸盐玻璃包含(a)50至95重量%的球形和F / Si比为 至少0.1但小于0.6,并且具有大于3μm但不大于50μm的粒度,和(b)5至50重量%的F / Si比为0.6至5的细颗粒和颗粒 面积达3亩。 该水泥组合物得到具有良好的表面光泽度和高强度的固化体,该水泥组合物具有良好的流动性和良好的加工性。 因此,水泥组合物作为牙科水泥组合物是有价值的。

    Amorphous, spherical inorganic compound and process for preparation
thereof
    3.
    发明授权
    Amorphous, spherical inorganic compound and process for preparation thereof 失效
    无定形球形无机化合物及其制备方法

    公开(公告)号:US4764497A

    公开(公告)日:1988-08-16

    申请号:US804181

    申请日:1985-12-03

    摘要: Disclosed is an amorphous, spherical inorganic compound having a particle size of 0.1 to 1.0 .mu.m, which comprises as main constituents (1) an oxide of at least one metal selected from the group consisting of metals of the Groups I, II, III and IV of the Periodic Table, said metal oxide being capable of combining with silicon dioxide, and (2) silica.This amorphous, spherical inorganic compound is prepared by a process comprising adding a mixed solution containing a hydrolyzable organic silicon compound and a hydrolyzable organic compound of at least one metal (M) selected from the group consisting of metals of the Groups I, II, III and IV of the Periodic Table to an alkaline solvent capable of dissolving said organic silicon compound and said organic metal compound therein but substantially incapable of dissolving a reaction product of both the organic silicon compound and the organic metal compound therein, effecting the hydrolysis to precipitate the reaction product and, if necessary, calcining the reaction product.

    摘要翻译: 公开了一种粒径为0.1〜1.0μm的无定形球形无机化合物,其包含主要成分(1)选自由I,II,III族金属组成的组中的至少一种金属的氧化物,以及 IV,所述金属氧化物能够与二氧化硅结合,和(2)二氧化硅。 该无定形球形无机化合物是通过以下方法制备的,该方法包括加入含有可水解有机硅化合物和至少一种金属(M)的可水解有机化合物的混合溶液,所述金属选自第I,II,III族金属 和IV表示为能够溶解所述有机硅化合物和所述有机金属化合物的碱性溶剂,但基本上不能溶解有机硅化合物和有机金属化合物的反应产物,从而使水解沉淀 反应产物,如果需要,煅烧反应产物。

    Acrylate compound and composition containing the same
    4.
    发明授权
    Acrylate compound and composition containing the same 失效
    丙烯酸酯化合物和含有它们的组合物

    公开(公告)号:US4755620A

    公开(公告)日:1988-07-05

    申请号:US877739

    申请日:1986-06-24

    IPC分类号: A61K6/00 C08F20/28 C07C69/52

    CPC分类号: C08F20/28 A61K6/0073

    摘要: Disclosed is an acrylate compound represented by the following general formula: ##STR1## wherein R.sub.1 stands for a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sub.2 stands for an alkylene group having 2 to 20 carbon atoms, R.sub.3 stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms when n is 1, and n is 1 or 2.A composition comprising this acrylate compound as one component has an excellent adhesiveness.

    摘要翻译: 公开了由以下通式表示的丙烯酸酯化合物:其中R 1表示氢原子或具有1至4个碳原子的烷基,R 2表示具有2至20个碳原子的亚烷基,R 3 代表氢原子或n为1时具有1至20个碳原子的烷基,n为1或2.含有该丙烯酸酯化合物作为一种组分的组合物具有优异的粘附性。

    Curable composition
    6.
    发明授权
    Curable composition 失效
    可固化组合物

    公开(公告)号:US4877854A

    公开(公告)日:1989-10-31

    申请号:US129173

    申请日:1987-12-07

    IPC分类号: A61K6/10 C08L71/02 C08L83/12

    CPC分类号: C08L71/02 A61K6/10 C08L83/12

    摘要: A curable composition comprising an unsaturated polyether having terminal alkenyl groups, a linear or branched siloxane-substituted polyether having terminal polyorganosiloxane residues and at least two Si-H groups in the molecule and a catalyst having platinum as the main component has an excellent deep portion curing property and provides a cured body having a good hydrophilic property and a good dimensional reproducibility. This curable composition is especially valuable as a dental impression material.

    摘要翻译: 包含具有末端烯基的不饱和聚醚,分子中具有末端聚有机硅氧烷残基和至少两个Si-H基团的直链或支链硅氧烷取代聚醚和具有铂作为主要成分的催化剂的可固化组合物具有优异的深部固化性 并提供具有良好亲水性和良好尺寸重现性的固化体。 该可固化组合物作为牙科印模材料是特别有价值的。

    Prosthetic composition
    7.
    发明授权
    Prosthetic composition 失效
    假肢成分

    公开(公告)号:US4782100A

    公开(公告)日:1988-11-01

    申请号:US7611

    申请日:1987-01-28

    CPC分类号: A61K6/083 C08F265/04

    摘要: Disclosed is a prosthetic composition comprising (A) a diester monomer represented by the following formula: ##STR1## wherein R.sub.1 stands for an alkylene group having 2 to 6 carbon atoms andR.sub.2 stands for an alkyl group having 2 to 4 carbon atoms,or a mixture of said diester monomer and other monomer copolymerizable therewith, (B) an orgnic polymer soluble in the monomer (A) in an amount of 0.5 to 5 parts by weight per part by weight of said monomer (A) and (C) a radical polymerization initiator.

    摘要翻译: 本发明公开了一种假体组合物,其包含(A)由下式表示的二酯单体:其中R1表示碳原子数2〜6的亚烷基,R2表示碳原子数2〜4的烷基, 所述二酯单体和可与其共聚的其它单体的混合物,(B)可溶于单体(A)中的可溶性聚合物的量为每重量份所述单体(A)0.5至5重量份,和(C)基团 聚合引发剂。

    Adhesive coating material
    8.
    发明授权
    Adhesive coating material 失效
    粘合剂涂料

    公开(公告)号:US4535102A

    公开(公告)日:1985-08-13

    申请号:US539417

    申请日:1983-10-06

    CPC分类号: C08J3/14

    摘要: Disclosed is an adhesive coating material for a hard tissue, which comprises (1) a polymer having an acid value of 30 to 700 and including in recurring units a hydrophobic group and two carboxyl (--COOH) groups or one carboxylic anhydride ##STR1## group bonded to the polymer, said carboxyl groups or carboxylic anhydride group being bonded to adjacent carbon atoms, and (2) a polymerizable vinyl compound or a mixture of said polymerizable vinyl compound and an organic titanate compound.

    摘要翻译: 公开了一种用于硬组织的粘合剂涂层材料,其包括(1)酸值为30至700的聚合物,并且以重复单元包含疏水基团和两个羧基(-COOH)基团或一个羧酸酐基团 与所述聚合物键合,所述羧基或羧酸酐基团与相邻碳原子键合,和(2)可聚合乙烯基化合物或所述可聚合乙烯基化合物和有机钛酸酯化合物的混合物。

    Novel crystalline metal oxide and process for production thereof
    9.
    发明授权
    Novel crystalline metal oxide and process for production thereof 失效
    新型结晶金属氧化物及其生产方法

    公开(公告)号:US4591575A

    公开(公告)日:1986-05-27

    申请号:US606610

    申请日:1984-05-03

    摘要: A crystalline metal oxide in the form of a solid solution comprising an oxide of a metal of Group II of the periodic table, titanium oxide and silicon dioxide as main components and having main peaks at about 26.7.degree. and about 20.9.degree. in its Cu-K.alpha. X-ray diffraction pattern (2.theta.) and a specific refractive index. The crystalline metal oxide is produced, for example, by dissolving a compound of a metal of Group II of the periodic table, a hydrolyzable organic silicon compound and a hydrolyzable titanium compound in an organic solvent, hydrolyzing said starting compounds in said solution or after said solution is added to a separately prepared solvent incapable of dissolving the reaction product, thereby to form a sol- or gel-like product, and thereafter calcining the sol- or gel-like product at a temperature and for a period of time sufficient to crystallize said product.

    摘要翻译: 固体溶液形式的结晶金属氧化物,其包含周期表第II族金属的氧化物,氧化钛和二氧化硅作为主要组分,并且在其Cu-K中具有约26.7°和约20.9°的主峰 αX射线衍射图(2θ)和特定折射率。 结晶金属氧化物例如通过将有机溶剂中的元素周期表第II族金属的化合物,可水解的有机硅化合物和可水解的钛化合物溶解在所述溶液中或在所述溶液中水解所述起始化合物 将溶液加入到不能溶解反应产物的单独制备的溶剂中,从而形成溶胶 - 或凝胶状产物,然后在足以结晶的温度和时间内煅烧溶胶 - 或凝胶状产物 说产品。