摘要:
A photopolymerization initiator comprising an iodonium salt compound; and a photocurable composition containing the compound. The composition is a photocurable cationic composition which cures in a short time upon irradiation with actinic energy rays. They are based on the following findings: (1) a colorless lowly toxic iodonium salt compound can be easily synthesized in high yield when a specific substrate is used as a starting material; (2) a photocurable composition curing in a short time to give a cured article having excellent material properties is obtained by using the iodonium salt compound in combination with a sensitizer; and (3) a highly sensitive photocurable composition which upon irradiation with actinic energy rays cures in a short time to give a cured article having excellent material properties is obtained by using a compound having a group functioning as a cationic photopolymerization initiator, a sensitizing group accelerating the phtoinitiated cationic reaction, and a cationically polymerizable group in the same molecule.
摘要:
An iodonium salt compound which is colored little, can be easily synthesized in high yield, is highly sensitive to irradiation with actinic energy rays such as light, electronic beams, or X-rays, is highly soluble in monomers, and is lowly toxic; and a photocurable composition which can cure in a short time even when the counter anion is a hexafluorophosphonate, tetrafluoroborate, etc., regardless of whether it is clear or pigmented, and which gives a cured object having excellent properties. The photocurable composition is prepared by compounding an iodonium salt compound represented by the general formula (I) with a cationically polymerizable compound, a sensitizer, etc.
摘要:
To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer.
摘要:
An organic electroluminescent device comprising, between an anode and a cathode, a hole-transporting layer, a luminous layer and an electron-transporting layer, wherein the hole-transporting layer contains an arylamine compound (X) having a molecular structure to which three or more triphenylamine skeletons are singly bonded or bonded through a divalent hydrocarbon group and an arylamine compound (Y) having a molecular structure to which two triphenylamine skeletons are singly bonded or bonded through the divalent hydrocarbon group. The device excels in hole and electron injection/transport property, stability and durability in the form of thin films, and is highly efficient, becomes luminous on a low driving voltage, and has a long life.
摘要:
Boundary lines which are contours of uneven marks are detected in a sample original image of the sidewall surface of a sample tire, and a mask image showing the position of the boundary lines is generated. Thereupon, a height offset image which shows a height of the uneven marks is generated by, in use of a plurality of discrete height threshold values, classifying the height of regions in the sample original image which remain after excluding regions corresponding to the positions of the boundary lines shown in the mask image. An unevenness-excluded image is generated by excluding the uneven marks from an inspection image of a sidewall surface of a tire under inspection, by subtracting the height offset image from the inspection image. A shape defect in the sidewall surface of the tire under inspection is inspected on the basis of the unevenness-excluded image.
摘要:
Provided are a novel titania fine-particle composite which has high transparency, high stability, and high ultraviolet-absorbing power and excellent redispersibility, and skin-care external preparations which contain the titania fine-particle composite and exert high ultraviolet protective effect. The titania fine-particle composite can be produced by adding one or more selected from among carboxylic acids and carboxylic acid derivatives represented by general formula (1), and polymers containing the carboxylic acids or carboxylic acid derivatives as a constituent monomer to an aqueous acid dispersion of titania fine particles, and neutralizing the resulting dispersion with an alkali to form a titania fine-particle composite composed of titania fine particles functioning as cores and the carboxylic monomer or polymer deposited on the surface of the cores. In the titania fine-particle composite, titania fine particles functioning as cores have a high degree of crystallization and the intermolecular interaction between titania fine particles and the carboxylic monomer or polymer is strong. Therefore, the titania fine-particle composite can be uniformly dispersed in a dispersion medium to attain high transparency and high stability. Further, skin-care external preparations which exert high ultraviolet protective effect can be produced by adding the titania fine-particle composite.
摘要:
It is an object of the present invention to provide (1) a copolymer for a cured product that is satisfactory in properties, such as adhesion properties, as a chip stacking adhesive or the like. The present invention is a copolymer comprising repeating units represented by formula (I), formula (II), and formula (III), (wherein R1, R2, and R3 each independently represent a hydrogen atom or a methyl group, R4 represents an alkyl group or a cycloalkyl group, R5 represents a hydrogen atom or a C1 to C6 alkyl group, m, n, and k represent a molar ratio of the respective repeating units, m represents a positive number of 0 or more and less than 1, n and k each independently represent a positive number, and satisfy a relation of m+n+k=1), and having a weight-average molecular weight in the range of 50,000 to 200,000.
摘要翻译:本发明的目的是提供(1)作为芯片堆叠粘合剂等具有令人满意的固化产物等粘合性能的共聚物。 本发明是包含由式(I),式(II)和式(III)表示的重复单元的共聚物,其中R 1,R 2和R 3各自独立地表示氢原子或甲基,R 4表示烷基 基团或环烷基,R5表示氢原子或C1〜C6烷基,m,n和k表示各重复单元的摩尔比,m表示0以上且小于1的正数,n k分别独立地表示正数,满足m + n + k = 1的关系),重均分子量在50,000〜200,000的范围内。
摘要:
In order to enable the shape of the surface of a tire including the shoulder sections thereof to be detected, a tire shape testing device comprises: a first linear light application means (10) for applying linear light to the tread section (8) of the tire; a second linear light application means (12) for applying linear light to the sidewall sections (7) of the tire; a third linear light application means (13) for applying linear light to the shoulder sections (9) and to regions outside the shoulder sections (9); and image capturing means (16) for capturing the images of the linear light applied by the first linear light application means (10), the second light application means, and the third linear light applications means (13) and reflected by the surface of the tire.
摘要:
A method for manufacturing a styrene polymer having a low number average molecular weight and a low polydispersity index, wherein the polymer has a number average molecular weight of 2000 or less and a polydispersity index of 1.01 to 1.10. For this purpose, the method includes polymerizing a styrene monomer in a solvent comprising an ether group-containing solvent in the presence of a polymerization initiator represented by formula [II], an organometallic compound represented by formula [III], and an organic potassium compound, at a temperature between −10° C. or higher and a boiling point of the solvent or lower.
摘要:
Boundary lines which are contours of uneven marks are detected in a sample original image of the sidewall surface of a sample tyre, and a mask image showing the position of the boundary lines is generated. Thereupon, a height offset image which shows a height of the uneven marks is generated by, in use of a plurality of discrete height threshold values, classifying the height of regions in the sample original image which remain after excluding regions corresponding to the positions of the boundary lines shown in the mask image. An unevenness-excluded image is generated by excluding the uneven marks from an inspection image of a sidewall surface of a tyre under inspection, by subtracting the height offset image from the inspection image. A shape defect in the sidewall surface of the tyre under inspection is inspected on the basis of the unevenness-excluded image.