摘要:
The present invention relates to a dental material comprising, relative to the total mass of the material: (a) 1 to 95 wt.-% of at least one polymerizable N,O-functionalized acrylic acid hydroxamide, (b) 0 to 70 wt.-% diluent monomer, (c) 0 to 70 wt.-%, cross-linker monomer, (d) 0.1 to 5.0 wt.-% polymerization initiator (e) 0 to 80 wt.-% filler, (f) 0 to 70 wt.-% solvent, and (g) 0 to 70 wt.-% adhesive monomer.
摘要:
Dental material which contains a polymerizable phthalic acid derivative of the general Formula I: with R1═H, methyl or a C1-C5 alkyl residue; R2═H, a phenyl, benzyl or C1-C8 alkyl residue; Q1=is absent or is a C1-C15 alkylene residue, wherein the carbon chain can be interrupted by O or S; Q2=is absent or a (n+1)-valent aliphatic C1-C20 residue, wherein the carbon chain can be interrupted by O or S and wherein Q1 and Q2 cannot be absent simultaneously; X=is absent, is O, S or (—CO—NR4—)—, wherein R4 is H, CH3 or C2H5; Y=is absent, is O, S or (—CO—NR5—)—, wherein R5 is H, CH3 or C2H5; n, m=independently of one another in each case mean 1, 2 or 3; R3═H, CH3, C2H5, Cl, Br or OCH3, and wherein the two carboxyl groups of the benzene ring can together form an anhydride group.
摘要:
Radically polymerizable macrocyclic polyethers or macrocyclic heteroanalogous polyethers, preferably crown ethers, heteroanalogous crown ethers and cryptands for use in dental materials is disclosed.
摘要:
Bicyclic cyclopropane derivatives of the general Formula (I) in which n+m is 0 to 8; r is 1 to 4; R1 is absent or is a C1-C20 alkylene radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C4-C12 radical, a C6-C14 arylene or C7-C20 alkylenearylene radical; R2 is for r=1 a C1-C20 alkyl radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C4-C12 radical, a C6-C14 aryl or a C7-C20 alkylaryl radical; is for r>1 an r-times substituted aliphatic C1 to C20 radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, an aromatic C6-C14 radical or aliphatic-aromatic C7-C20 radical; X is absent or is —CO—O—, —CO—NH— or —O—CO—NH—, and Y is CH2, O or S which is suitable in particular for the preparation of dental materials.
摘要:
The present invention relates to dental materials composed of calix[n]arenes and also to the use thereof for cements, composites, adhesives and coating materials in the dental field. The materials include (a) 0.5 to 90% by weight of at least one polymerizable calix[n]arene according to formula (I), (b) 0.01 to 5% by weight of initiator, (c) 0 to 90% by weight of at least one additional monomer which can polymerize under cationic and/or radical conditions and/or which can polymerize by ring opening, (d) 0 to 85% by weight of filler, (e) 0.01 to 5% by weight of additive and (f) 0 to 70% by weight of solvent.
摘要:
Acrylic ester phosphonic acids of general formula (I), stereoisomers thereof and mixtures of these, wherein n is 1 or 2, on the condition that for n=1 R1 has the meaning and for n=2 R1 has the meaning R2 is a C1 to C12 alkylene radical, C4-C8 cycloalkylene radical or C7 to C15 alkylene phenylene radical; R3 is hydrogen, a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical; and R4, R5, independently of each other, each stand for a C1 to C5 alkyl radical or a C1 to C5 O-alkyl radical.
摘要:
The invention relates to urethane di(meth)acrylate derivatives of 1-3-bis(1-isocyanato-1-methylethyl)benzene according to Formula (I) in which R is hydrogen or a straight-chained C1-C8 alkyl radical; X and Y independently of each other stand for R1 being a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; R2 hydrogen, a C1- to C5-alkyl or a substituted or unsubstituted C6- to C12-aryl radical; R3 hydrogen or a methyl radical; R4 a C1- to C8-alkylene radical which can be broken by oxygen atoms, or a phenylene radical; R5 hydrogen or a methyl radical; R6 a substituted or unsubstituted C6- to C12-aryl or C7- to C16-alkyl aryl radical; Z being —CO— or a chemical bond and W standing for oxygen, sulphur or NR7, R7 being hydrogen or a straight-chained C1- to C6-alkyl radical. The substances are suitable in particular for the production of dental materials.
摘要翻译:本发明涉及式(I)的1,3-双(1-异氰酸基-1-甲基乙基)苯的氨基甲酸酯二(甲基)丙烯酸酯衍生物,其中R为氢或直链C1-C8烷基; X和Y彼此独立地代表R 1是取代或未取代的C 6 -C 12 - 芳基或C 7 -C 16烷基芳基; R 2为氢,C 1至C 5 - 烷基或取代或未取代的C 6至C 12 - 芳基; R 3氢或甲基; R 4可以被氧原子断裂的C1-至C8-亚烷基或亚苯基; R 5氢或甲基; R 6取代或未取代的C 6 -C 12 - 芳基或C 7 -C 16烷基芳基; Z是-CO-或化学键,W代表氧,硫或NR 7,R 7是氢或直链C 1至C 6烷基。 这些物质特别适用于生产牙科材料。
摘要:
A composite material is described which contains polymerizable monomers plus a special transparent glass having high release of calcium ions and fluorine ions and, because of this release property and in particular of its optical properties, can be used as a restoration material in dentistry.
摘要:
An apparatus for coupling a battery to a mains-powered Sc link circuit of a converter. The this apparatus has two capacitors and two converter bridge arms which are each connected electrically in parallel with a capacitor. The apparatus also includes an inductor which connects the centre terminals of the two converter bridge arms to one another, and a semiconductor power switch which makes it possible to connect the positive terminals of the two converter bridge arms. In addition, the apparatus includes a control electronics with downstream driver stages which control electronics use determined actual values of this apparatus, a mains failure signal and an inductor current setpointvalue to generate control signals. A battery coupling apparatus is thus obtained by means of which the battery is not continuously loaded with alternating current, and the opportunity for battery maintenance exists in order to increase the battery life.
摘要:
In a recording and/or reproducing apparatus (1; 1') with an apparatus housing (2; 2') and a chassis (43; 43') arranged therein and carrying at least one movable apparatus part (37, 37', 60, 60', 61, 61', 67, 67', 69, 69', 75, 75', 108, 108', 111, 111', 112, 112', 113, 113') at least one movable control device (70, 70'; 86, 86'), which is pivotable about a spindle (47, 47', 48, 48') has been provided to control the movement of least one movable apparatus part, which control device is coupled to a movable actuating device (80, 80', 103, 103') via a coupling device (79, 79', 102, 102'), which actuating device can be coupled to the control device (70, 70', 86, 86') in a given position relative to the chassis (43, 43') and is connected to a hand-actuated actuating member (17, 17', 18, 18'). For the construction of two apparatus variants which differ as regards the arrangement of the chassis (43, 43') in the apparatus housing (2, 2') the control device (70, 70', 86, 86') comprises two coupling elements (81, 81', 104, 104') which are spaced apart by a given angle, and one of two actuating devices (80, 80', 103, 103') is engageable with each of these coupling elements of the control device (70, 70', 86, 86'), of which one actuating device (80, 103) can be coupled to the control device (70, 86 and 70', 86', respectively) in one given position relative to the chassis (43) and the other actuating device (80', 103') can be coupled to said control device in a second given position relative to the chassis (43').