SILANE COUPLING COMPOUNDS AND MEDICAL AND/OR DENTAL CURABLE COMPOSITIONS COMPRISING THE SAME
申请人:KABUSHIKI KAISHA SHOFU
公开号:US20190300552A1
公开(公告)日:2019-10-03
The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used.
Four novel ketocoumarin-based chromophores: Synthesis, photoluminescent behaviors and theoretical studies
作者:Jing Li、Xianggao Li、Shirong Wang
DOI:10.1016/j.molstruc.2012.01.007
日期:2012.3
Abstract Four novel coumarin derivatives were synthesized and characterized via MS, 1 H NMR, FT-IR, and UV–vis absorptionspectra. The fluorescence behaviors of the compounds in DFM solutions were observed. The compounds exhibited strong blue and green emissions under ultraviolet light excitation. Calculations performed using a combined time-dependent density functional theory (TD-DFT) and conductor-like
The present invention provides a dental adhesive exhibiting excellent initial bond strength and bond durability to both enamel and dentin. The present invention relates to a dental adhesive containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); and a water-soluble polymerizable monomer (c). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1):
where X is an optionally substituted, linear or branched C
1
to C
6
aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR
1
—, —CO—NR
1
—, —NR
1
—CO—, —CO—O—NR
1
—, —O—CO—NR
1
—, and —NR
1
—CO—NR
1
—, and R
1
is a hydrogen atom or an optionally substituted, linear or branched C
1
to C
6
aliphatic group.
The present invention provides a self-adhesive composite resin having excellent adhesiveness to tooth structures and excellent mechanical strength. The present invention relates to a self-adhesive dental composite resin containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a photopolymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1):
where X is an optionally substituted, linear or branched C
1
to C
6
aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR
1
—, —CO—NR
1
—, —NR
1
—CO—, —CO—O—NR
1
—, —O—CO—NR
1
—, and —NR
1
—CO—NR
1
—, and R
1
is a hydrogen atom or an optionally substituted, linear or branched C
1
to C
6
aliphatic group.
AbstractAn efficient and simple protocol for the synthesis of a new class of diversely functionalized novel indole and coumarin containing pyridine-3-carbonitrile derivatives has been described through one-pot four-component condensation reaction of 3-(1H-indol-3-yl)-3-oxopropanenitrile, various aldehydes, 3-acetyl-2H-chromenones, and ammonium acetate in acetic acid conditions. The present new methodology