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:
The present invention relates to dental composites comprising at least one nanoparticulate mixed oxide (a) of SiO2 with X-ray-opaque metal oxides of one or more elements selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu which has been prepared by flame spraying.
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:
Dental material being polymerizable by ring-opening metathesis polymerization comprising (i) at lest one ruthenium complex bearing at least one N-heterocyclic carbene ligand or precursors which generate a ruthenium complex bearing at least one N-heterocyclic carbene ligand in situ; and (ii) at least one cyclic olefin capable of metathesis.
摘要:
The invention relates to dental materials which contain at least one polysiloxane based on one or several silanes according to formula (I) [(Wq—R6—Z)p—R3]mY—R2—SiXnR13−n Formula (I) in which X stands for a halogen atom, a hydroxyl, alkoxy and/or acyloxy group; n is equal to 1 to 3, R1 stands for an alkyl, alkenyl, aryl, alkylaryl, arylalkyl group; R2 stands for an alkylene group; R3 stands for a p-time substituted, straight, branched or cyclic, saturated or unsaturated, aromatic or aliphatic organic radical with 2 to 40 carbon atoms and optionally 1 to 6 heteroatoms; R6 stands for a q-times substituted, straight, branched or cyclic organic radical with 1 to 20 carbon atoms or is absent; p is equal to 1 to 6; q is equal to 1 to 6; Y stands for —NR4—, N or —(C═O)—NH—; m is equal to 2 for Y═N and equal to 1 for Y═—NR4—, or —(C═O)—NH—; R4 stands for an alkyl or aryl group; Z stands for O, S, —(C═O)—O—, —(C═O)—NH—, —O—(C═O)—NH— or is absent; W stands for CH2═CR5—(C═O)—O—; and R5 stands for a hydrogen atom or an alkyl group and optionally one or several further hydrolytically condensable compounds of silicon, aluminium, zirconium, titanium, boron, tin, vanadium and/or phosphorus.
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:
Slip based on a polyreactive binder, polymerization initiator and filler, which contains (A) 5-65 wt.-% polymerizable binder, (B) 0.001-1.0 wt.-% photoinitiator and (C) 35-90 wt.-% surface-modified ceramic and/or glass ceramic particles relative to the overall mass of the slip, and process for the preparation of ceramic mouldings by rapid prototyping processes using the slip.
摘要:
A composition comprising (A) at least one fluorinated vinylcyclopropane according to Formula (I) wherein R1 is H or —CO—O—(CH2CH2)p—R7; R2 is H or forms together with R6 a —CH2—C(R9)(R10)—CH2— residue; R3 is H; R4 is H or forms together with R5—CH2—C(R9)(R10)—CH2— residue; R5 is H, —CO—O—R8, —CO—O—(CH2CH2)p—R7 or forms together with R4—CH2—C(R9)(R10)—CH2— residue; R6 is H, —CO—O—R8, —CO—O—(CH2CH2)p—R7 or forms together with R2 a —CH2—C(R9)(R10)—CH2— residue; R7 is perfluorinated C2-C20 aliphatic or alicyclic group; R8 is H, phenyl, benzyl, or a linear or branched C1-C12 aliphatic or alicyclic group; R9 is a H, benzoyl, acetyl or a C1-C5-alkyl group; R10H or a —CO—O—R8; p is 1, 2, 3, or 4, provided that the compound of Formula (I) comprises at least one —CO—O—(CH2CH2)p—R7 residue; (B) at least one non-fluorinated vinylcyclopropane derivative; (C) a bisphenol-A-ether di(meth)acrylate according to Formula (II) wherein R18 is H or CH3, R19 is CH3 or CF3, Y is a C2-C5-alkylen residue which can be substituted by an OH group or is preferably unsubstituted.
摘要:
Dental materials and associated methods are described based on multicyclic allyl sulphides with general Formula (I): in which R1 is H or a C1-C10 alkyl radical; R2 is H or a C1-C10 alkyl radical; R3 is absent or is a C1-C20 alkylene radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C6-C12 radical, a C6-C14 arylene or C7-C20 alkylene arylene radical; R4 is an n-times substituted aliphatic C2 to C20 hydrocarbon radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, an aromatic C6-C14 radical, an aliphatic-aromatic C7-C20 radical or a heterocyclic radical which can contain 4 to 20 carbon atoms and 1 to 6 heteroatoms which are selected from N, O, P and/or S atoms, or which is formed exclusively by these heteroatoms; R5 is absent or is a C1-C10 alkylene radical; X is absent or is O, S, —O—CO— or —O—CO—NH—; Y is absent or is O, S, —O—CO— or —O—CO—NH—; m is 0 or 1 and n is an integer from 3 to 6.
摘要:
Described are occlusion instruments (1, 2, 3, 4) comprising bioresorbable and thermoplastically deformable polymers with or without shape memory characteristics, which contain radiopaque building groups in the repeat units of the polymer chains and/or are modified with bioresorbable, radiopaque nanoparticles. The polymers display sufficient strength and deformability, good bioresorbability and sufficient visibility in radiance and are particularly useful for producing metal-free occlusion instruments for closing defects of the septum in the heart, the positioning of which being monitorable using routine diagnostic methods.