摘要:
A water-soluble thermally polymerizable oxetane resin composition comprises (A) a water-soluble oxetane compound and (B) at least one heteropolyacid compound selected from heteropolyacids and heteropolyacid salts. The water-soluble oxetane compound may contain one or more oxetane functional groups in the molecule and one or more alcoholic OH groups in the molecule. The heteropolyacids include phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid or mixtures thereof. The heteropolyacid salts include phosphotungstic acid salts, phosphomolybdic acid salts, silicotungstic acid salts, silicomolybdic acid salts or mixtures thereof.
摘要:
Disclosed is a cationically polymerizable composition which shows improved storage stability and whose polymerization initiation temperature or curing temperature is controlled. In the case where the composition is thermosetting, it yields a cured product of three-dimensional structure excellent in mechanical properties, electrical properties, adhesive properties, heat resistance, moisture resistance, chemical resistance, and the like. The cationically polymerizable composition comprises a cationically polymerizable compound selected from vinyl compounds, lactones, cyclic ethers, and the like, a heteropolyacid selected from phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid, and the like as a cationic polymerization initiator, and a stabilizer selected from heteropolyacid salts as an inhibitor of cationic polymerization.
摘要:
Disclosed is a cationically polymerizable composition which shows improved storage stability and whose polymerization initiation temperature or curing temperature is controlled. In the case where the composition is thermosetting, it yields a cured product of three-dimensional structure excellent in mechanical properties, electrical properties, adhesive properties, heat resistance, moisture resistance, chemical resistance, and the like. The cationically polymerizable composition comprises a cationically polymerizable compound selected from vinyl compounds, lactones, cyclic ethers, and the like, a heteropolyacid selected from phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid, and the like as a cationic polymerization initiator, and a stabilizer selected from heteropolyacid salts as an inhibitor of cationic polymerization.
摘要:
Disclosed is a water-soluble, thermally polymerizable oxetane composition essentially comprising a water-soluble oxetane compound and a heteropolyacid. The water-soluble thermally polymerizable oxetane resin composition essentially comprises (A) a water-soluble oxetane compound and (B) at least one heteropolyacid compound selected from heteropolyacids and heteropolyacid salts. The water-soluble oxetane compound may contain one or more oxetane functional groups in the molecule and one or more alcoholic OH groups in the molecule. The heteropolyacids include phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, and silicomolybdic acid and mixtures thereof. The heteropolyacid salts include phosphotungstic acid salts, phosphomolybdic acid salts, silicotungstic acid salts, and silicomolybdic acid salts and mixtures thereof.
摘要:
Disclosed is a thermosetting resin composition of excellent low-temperature curability comprising an oxetane compound and also disclosed is a cured article obtained therefrom. The thermosetting resin composition comprises an oxetane compound (A) containing two or more oxetane functional groups in the molecule represented by the following general formula (1) and a heteropolyacid (B) as essential components. A cured article obtained by heat curing of this composition shows excellent mechanical properties, electrical properties, adhesive properties, resistance to heat, moisture, and chemicals, and the like. In formula (1), R1 is a hydrogen atom, alkyl group of 1 to 6 carbon atoms, fluorine atom, fluoroalkyl group of 1 to 6 carbon atoms, allyl group, aryl group, aralkyl group, furyl group, or thienyl group.
摘要:
Disclosed is a thermosetting resin composition of excellent low-temperature curability comprising an oxetane compound and also disclosed is a cured article obtained therefrom. The thermosetting resin composition comprises an oxetane compound (A) containing two or more oxetane functional groups in the molecule represented by the following general formula (1) and a heteropolyacid (B) as essential components. A cured article obtained by heat curing of this composition shows excellent mechanical properties, electrical properties, adhesive properties, resustance to heat, moisture, and chemicals, and the like. In formula (1), R1 is a hydrogen atom, alkyl group of 1 to 6 carbon atoms, fluorine atom, fluoroalkyl group of 1 to 6 carbon atoms, allyl group, aryl group, aralkyl group, furyl group, or thienyl group.
摘要:
This invention relates to a process for preparing high-purity aromatic oligomers by effectively separating an organic layer containing aromatic oligomers or the reaction products of a polycyclic aromatic compound with formaldehyde from an aqueous layer containing an acid catalyst in a simplified manner, hitherto regarded difficult to accomplish, and obtaining high-purity aromatic oligomers from the organic layer containing a reduced amount of impurities. In separating the aqueous layer containing the acid catalyst and the organic layer containing the oligomers from the reaction mixture formed by the condensation of a polycyclic aromatic compound and formaldehyde, the emulsion phase is broken by adding a nonionic or cationic surfactant in an effective amount and an alkali in an amount sufficient to neutralize 1–70% of the acid in the acid catalyst, the organic and aqueous layers are separated and the aromatic oligomers are recovered from the organic layer.
摘要:
Disclosed is an organic electroluminescent device (organic EL device) that utilizes phosphorescence and is improved in luminous efficiency and fully secured of driving stability. The organic EL device comprises an anode, an organic layer containing a hole-transporting layer, a light-emitting layer, and an electron-transporting layer, and a cathode piled one upon another on a substrate while the hole-transporting layer is disposed between the light-emitting layer and the anode and the electron-transporting layer is disposed between the light-emitting layer and the cathode. The light-emitting layer comprises an aluminum heterocomplex or dimeric complex of deuterated substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ-D) in which the hydrogen atoms in the methyl group of substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ) are deuterated as a host material and an organic metal complex containing at least one metal selected from groups 7 to 11 of the periodic table as a guest material.
摘要:
Disclosed is an organic electroluminescent device (organic EL device) that utilizes phosphorescence and is improved in luminous efficiency and fully secured of driving stability. The organic EL device comprises an anode, an organic layer containing a hole-transporting layer, a light-emitting layer, and an electron-transporting layer, and a cathode piled one upon another on a substrate while the hole-transporting layer is disposed between the light-emitting layer and the anode and the electron-transporting layer is disposed between the light-emitting layer and the cathode. The light-emitting layer comprises an aluminum heterocomplex or dimeric complex of deuterated substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ-D) in which the hydrogen atoms in the methyl group of substituted or unsubstituted 2-methyl-8-hydroxyquinoline (Me8HQ) are deuterated as a host material and an organic metal complex containing at least one metal selected from groups 7 to 11 of the periodic table as a guest material.
摘要:
[Object] To implement a support layer which is smaller than in the prior art with a stable contact area with the spacers in columnar form even in the case where the spacers in columnar form are miniaturized.[Means for Achieving Object] A liquid crystal display device is provided with: a first substrate; a second substrate; and a liquid crystal display panel having liquid crystal sandwiched between the above described first substrate and the above described second substrate, and characterized in that the above described second substrate has spacers in columnar form, the above described first substrate has a support layer in a region where the above described spacers in columnar form are formed, the above described support layer has: a first layer extending in a first direction; and a second layer formed on the above described first layer and extending in a second direction which crosses the above described first direction at an angle of 70° to 110°, and the surface of the above described spacers in columnar form on the above described first substrate side faces the portion where the above described first layer of the above described support layer and the above described second layer overlap. The above described first layer and the above described second layer of the above described support layer are rectangular in a plan view. The above described first layer is a semiconductor layer and the above described second layer is a metal layer.