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    • 3. 发明授权
    • Dental soft relining material, denture and method of repairing denture
    • 牙齿软修补材料,义齿和修补义齿的方法
    • US5952400A
    • 1999-09-14
    • US24406
    • 1998-02-17
    • Yasuhiro HosoiOsamu Iwamoto
    • Yasuhiro HosoiOsamu Iwamoto
    • A61K6/00A61C13/23A61K6/093C08L83/04
    • C08L83/04C08G77/12C08G77/20
    • The present invention provides a composition having sufficient strength and softness and excellent resistance against coloring, which is suited for use as a dental soft relining material. The present invention relates to a dental soft relining material which comprises 100 parts by weight of an organopolysiloxane (A) having in a molecule thereof at least two organic groups with a terminal unsaturated bond, an organohydrogenpolysiloxane (B) having in a molecule thereof at least three SiH groups, in such an amount that a ratio of the total number of SiH groups of (B) to the total number of terminal unsaturated bonds present in the organopolysiloxane molecules of (A) is from 0.5 to 5, a catalytic amount of a catalytic substance (C) for hydrosilylation reaction, 10 to 300 parts by weight of polyorganosilsesquioxane particles (D), and 1 to 50 parts by weight of hydrophobic silica particles (E) having a number of silanol groups per a unit surface area of not greater than 1/nm.sup.2 so that a hydrophobic index is not smaller than 60%, said hydrophobic index being defined by a minimum methanol amount (concentration) necessary for completely suspending said silica particles in a methanol aqueous solution.
    • 本发明提供了具有足够的强度和柔软性以及优异的耐着色性的组合物,其适合用作牙科软修复材料。 本发明涉及一种牙科软修复材料,其包含100重量份在其分子中具有至少两个具有末端不饱和键的有机基团的有机聚硅氧烷(A),至少在其分子中具有至少一个有机基聚硅氧烷 三个SiH基团,其量(A)的有机聚硅氧烷分子中存在的(B)的SiH基总数与末端不饱和键的总数的比例为0.5〜5,催化量的 氢化硅烷化反应的催化物质(C),10〜300重量份的聚有机倍半硅氧烷颗粒(D)和1〜50重量份的每单位面积的硅烷醇基数不大的疏水性二氧化硅粒子(E) 以上,疏水性指数为60%以上,所述疏水性指数由完全悬浮二氧化硅颗粒在甲烷中所需的最小甲醇量(浓度)来定义 nol水溶液。
    • 9. 发明授权
    • Denture, method of repairing denture and dental soft relining material
used therefor
    • 义齿,修补义齿的方法和用于其的牙科软修复材料
    • US5513987A
    • 1996-05-07
    • US207168
    • 1994-03-08
    • Yasuhiro HosoiOsamu IwamotoMasataka Himeno
    • Yasuhiro HosoiOsamu IwamotoMasataka Himeno
    • A61C13/00A61C13/07A61K6/093A61C13/02
    • A61C13/0025A61C13/0001
    • A denture having a layer of a soft relining material and a method of repairing denture. The denture has on the mucosa surface thereof the soft relining material which comprises a cured product of a composition that contains (A) 100 parts by weight of an organopolysiloxane having in a molecule thereof at least two organic groups with a terminal unsaturated bond, (B) an organohydrogenpolysiloxane having in a molecule thereof at least three hydrogen atoms bonded to silicon atoms, in such an amount that the number of said hydrogen atoms is 0.5 or greater per one unsaturated bond in the component (A), (C) a platinum catalyst in an amount of 0.1 to 1000 ppm reckoned as platinum atoms with respect to the total amount of the component (A) and the component (B), and (D) 5 to 300 parts by weight of a fine particle of a polyorganosilsesquioxane.
    • 具有柔软修复材料层的义齿和修补义齿的方法。 该义齿在其粘膜表面上具有柔软的再填充材料,其包含组合物的固化产物,该组合物含有(A)100重量份的在其分子中具有至少两个具有末端不饱和键的有机基团的有机聚硅氧烷(B )在其分子中具有与硅原子键合的至少三个氢原子的有机氢聚硅氧烷,其量使得组分(A)中每个不饱和键上的氢原子数为0.5或更大,(C)铂催化剂 相对于组分(A)和组分(B)的总量为0.1-1000ppm的铂原子计,和(D)5至300重量份的聚有机倍半硅氧烷的细颗粒。