摘要:
Composition with at least one polymerizable binder and a polymerization initiator, which contains at least one acylgermane according to general Formula (I), in which R0 is a substituted or unsubstituted C1-18-alkyl radical or an acyl group; R1 and R2 are H, an acyl group or have one of the meanings given for R3; R3 is a branched or linear C1-18-alkyl radical which can be unsubstituted or substituted one or more times by —O—, —NH—, —NR—, —S— or interrupted by other groups, trimethylsilyl, hal-(CH3)2Si—[OSi(CH3)2]r−, (CH3)3Si—[OSi(CH3)2]r—, —COOH, —COO—R10, —CO—NR11R12, —CO-vinyl, —CO-phenyl, phenyl-C1-4-alkyl, phenyl, naphthyl or biphenyl, C5-12 cycloalkyl, a 5 or 6-membered O, S or N-containing heterocyclic ring, halogen, OH, an aromatic C6-30 radical which can be substituted or unsubstituted and/or interrupted by O, S or —NR—, or a branched, cyclic or linear C1-20 alkyl, -alkenyl, -alkoxy or -alkenoxy radical; m is 1, 2 or 3; n is 0 or 1 and p is 0 or 1; and the use of acyl germanes of Formula (I) for example as initiator for radical polymerization.
摘要:
Polymerizable dental material which contains at least one radically-polymerizable monomer and at least one bisacylphosphine oxide of the Formula I, in which R1 is a linear or branched C2 to C14 alkyl residue, which can be interrupted by one or more O atoms, PG-Y-R2-X- or a substituted or unsubstituted, aromatic C6 to C14 radical; R2 is absent or a linear or branched C1 to C20 alkylene radical, which can be interrupted by one or more O atoms; R3 is H, a linear or branched C1 to C6 alkyl residue or PG-Y-R2-X-; R4 is a linear or branched C1-C6 alkyl or —O—C1-C6 alkyl residue; R5 is H or PG-Y-R2-X-; R6 is H or PG-Y-R2-X-; PG is a polymerizable group; X is absent, O or S; Y is absent, O, S, an ester, amide or urethane group; the bisacylphosphine oxide having at least one PG-Y-R2-X group and X and/or Y being absent if R2 is absent.
摘要翻译:含有至少一种可自由基聚合的单体和至少一种式I的双酰基氧化膦的可聚合的牙科材料,其中R 1是直链或支链C 2〜C 可以被一个或多个O原子间隔的烷基残基,PG-YR 2 -X-或取代或未取代的芳族C 6 - SUB>至C 14 u>基团; R 2不存在或可以被一个或多个O原子中断的直链或支链C 1至C 20亚烷基; R 3是H,直链或支链C 1至C 6烷基或PG-YR 2 - X-; R 4是直链或支链C 1 -C 6烷基或-OC 1 -C 1 -C 6烷基, 6个烷基残基; R 5是H或PG-Y-R 2 -X-; R 6是H或PG-Y-R 2 -X-; PG是可聚合基团; X不存在,O或S; Y不存在,O,S,酯,酰胺或氨基甲酸酯基; 具有至少一个PG-Y-R 2 -X基团的双酰基氧化膦和如果R 2不存在X和/或Y不存在。
摘要:
Filler which is surface-modified with a compound of the formula [(PG)—R1—Z]n—SP—[Y—R2—(AG)]m, in which AG is —COOH, —P(═O)(OH)2, —O—P(═O)(OH)2, —SO2OH, —SiR3R4X, or a chelating group; R1 is a C1-C3 alkylene group or cyclopropylene group or is absent; R2 is a C1-C10 alkylene group or is absent; R3 is a C1-C8 alkyl group, chlorine or OR5; R4 is a C1-C8 alkyl group, phenyl, chlorine or OR5; R5 is a C1-C6 alkyl group; X is OR5 or chlorine; Y is O, S, CO—NH, O—CO—NH, NH—CO—NH or is absent, Y being absent if R2 is absent; Z is O, S, CO—NR6, O—CO—NH, NH—CO—NH or is absent, R6 being H or C1-C6 alkyl; PG is a radically polymerizable group of the formula in which R9 is H, C1-C3 alkyl, C1-C3 hydroxyalkyl or COOR10; R10 is H, C1-C10 alkyl, 1,6-dimethylphenyl or mesityl; R11 is H or phenyl; m is 1 or 2; n is 1, 2, 3 or 4; SP is absent or is an (n+m)-valent linear or branched aliphatic C1-C30 radical, in which the carbon chain can be interrupted by O, S, CO—NH, O—CO—NH or NH—CO—NH, an (n+m)-valent aromatic C6-C18 radical, an (n+m)-valent cycloaliphatic C3-C18 radical or an (n+m)-valent heterocyclic C3-C18 radical, where the radicals can be substituted or unsubstituted; in which, if AG is a silyl radical of the formula —SiR3R4X and PG is a vinyl group of the formula H2C═CH—, R1 and Z are not absent simultaneously.
摘要:
Dental composition containing (i) at least one acid (meth)acrylamide monomer which has two or more polymerizable groups, (ii) at least one acid monomer which has only one polymerizable group and (iii) at least one polymerization initiator.
摘要:
The invention relates to dental materials which contain a thermochromic dye and which display a reversible change of colour in the event of changes in temperature, so that they can be distinguished from the natural dentin.
摘要:
The invention relates to ion-releasing composite materials on the basis of polymerizable monomers. The material is characterized in that it contains one or more non-acid, non-ionic, hydrophilic crosslinker monomers, one or more non-acid, non-ionic, hydrophilic dilution monomers having a viscosity of ≦1 Pas and at least one ion-releasing filler. The materials are suitable in particular for use as dental materials.
摘要:
The invention relates to a multi-component dental cement which contains as a first component an ethylenically unsaturated polymerisable compound, as a second component calcium hydroxide, calcium oxide or a precursor thereof and also a polymerisation initiator, the constituents of which can be contained in one or more cement components, which is characterized in that the ethylenically unsaturated polymerisable compound has both at least one .beta.-dicarbonyl group and also at least one acrylic, alkacrylic or vinyl aromatic group. Also included are a process for the production of a multi-component dental cement and the use of the described polymerisable .beta.-dicarbonyl compounds in calcium hydroxide dental cements.
摘要:
A chlorhexidine adduct is described, which comprises one molecule of chlorhexidine with three molecules of hydrogen fluoride and one molecule of hydrogen tin trifluoride. The adduct displays a high antibacterial effectiveness against Streptococcus mutans even in very low concentrations.
摘要:
A chlorohexidine adduct comprising one molecule of chlorohexidine with six molecules of hydrogen fluoride and a process for its preparation are described, said adduct displaying a high anti-bacterial effectiveness vis-a-vis Streptococcus mutans even in very small concentrations and being valuable as anti-plaque agent and for caries prevention.