Dental fillers
    24.
    发明授权
    Dental fillers 失效
    牙科填料

    公开(公告)号:US4937144A

    公开(公告)日:1990-06-26

    申请号:US362772

    申请日:1989-06-07

    IPC分类号: A61K6/083 C08F20/10 C08F20/20

    CPC分类号: A61K6/083 Y10T428/2982

    摘要: Cross-linked (meth)-acrylates having a particle size in the range from 0.01 to 10 .mu.m which have a degree of swelling of 100 to 2,000% by weight and a degree of cross-linking of 50 to 100% by weight, relative to the polymer, are fillers for applications in the dental field.

    摘要翻译: 粒径为0.01〜10μm的交联(甲基) - 丙烯酸酯,其膨润度为100〜2000重量%,交联度为50〜100重量%,相对 聚合物是用于牙科领域的填充剂。

    Ester-urethane derivatives of (meth)-acrylic acid for dental materials
    25.
    发明授权
    Ester-urethane derivatives of (meth)-acrylic acid for dental materials 失效
    用于牙科材料的(甲基)丙烯酸的酯 - 氨基甲酸酯衍生物

    公开(公告)号:US4904750A

    公开(公告)日:1990-02-27

    申请号:US287424

    申请日:1988-12-20

    摘要: Dental fillings, coatings and teeth are formed of polymers and copolymers of a polyfunctional ester-urethane derivative of (meth)-acrylic acid of the formula ##STR1## in which A is a straight-chain or branched aliphatic radical which has 2 to 20 carbon atoms and optionally contains 1 to 3 oxygen bridges, an aromatic radical with 6 to 24 carbon atoms, an araliphatic radical with 7 to 26 carbon atoms or a cycloaliphatic radical with 6 to 26 carbon atoms,r denotes the number of chains starting from A and denotes a number from 2 to 6,R.sup.1 and R.sup.2 are identical and denote hydrogen or are different and denote hydrogen and methyl,n denotes a number from 0 to 5 independently for each chain starting from A,X stands for the group ##STR2## in which Y denotes a divalent (cyclo)aliphatic radical which has 2 to 15 carbon atoms and optionally contains ester, ether or urethane groups,Z denotes a divalent straight-chain or branched aliphatic hydrocarbon radical which has 3 to 15 carbon atoms and can optionally contain 1 to 3 oxygen bridges and can optionally be substituted by 1 to 4 additional (meth)-acrylate radicals andR.sup.3 denotes hydrogen or methyl independently for each chain starting from A.

    摘要翻译: 牙科填充物,涂料和牙齿由式(IMA)(I)的(甲基)丙烯酸的多官能酯 - 氨基甲酸酯衍生物的聚合物和共聚物形成,其中A是直链或支链脂族基团,其具有2 至20个碳原子,并且任选地含有1至3个氧桥,具有6至24个碳原子的芳族基团,具有7至26个碳原子的芳脂族基团或具有6至26个碳原子的脂环族基团,r表示链起始数 从A表示2至6的数,R1和R2相同并且表示氢或不同,表示氢和甲基,n表示从A开始独立地为0至5的数,X表示< IMAGE>其中Y表示具有2至15个碳原子并且任选地含有酯,醚或氨基甲酸酯基团的二价(环)脂族基团,Z表示具有3至15个碳原子的二价直链或支链脂族烃基, ca n任选地含有1至3个氧桥,并且可以任选地被1至4个另外的(甲基)丙烯酸酯基团取代,并且对于从A开始的每个链,R 3表示氢或甲基。