摘要:
The present invention aims at providing an optically active difluoromethanesulfonanilide derivative exhibiting an excellent herbicidal activity at a low dose.An optically active (R)-2′-(4,6-dimethoxy-pyrimidin-2-yl)hydroxymethyl-1,1-difluoromethanesulfonanilide derivative is represented by the formula (I) (in the formula, R1 is a hydrogen atom, a C1-C4 alkyl group or a C1-C4 alkoxy C1-C4 alkyl group). and this difluoromethanesulfonanilide derivative is produced by subjecting to optical resolution a racemate of 2′-(4,6-dimethoxypyrimidin-2-yl)hydroxymethyl-1,1-difluoromethanesul-fonanilide derivative.
摘要:
A water-soluble metalworking fluid contains: at least either one of (A) a block polyalkylene glycol represented by formula (1): HO(EO)a—(PO)b-(EO)cH, and (B) a polyalkylene glycol monoether represented by formula (2): RO(R′O)dH; and (C) an alkanolamine fatty acid salt, in which EO represents —CH2CH2O — and PO represents —CH(CH3)CH2O— or —CH2CH(CH3)O—; each unit of (EO)a, (PO)b and (EO)c is block-bonded; a and c each is an integer of 1 to 30 and b is an integer of 5 to 100; R represents an alkyl group having 1 to 30 carbon atoms and R′O represents PO or EO; mole fraction of EO is less than 100%; and d is an integer of 1 or 50.
摘要:
A two-component curable solventless adhesive which enables a laminated composite film comprising a barrier layer and a plastic film laminated with each other to maintain excellent appearance and adhesive strength for a long period even after a sterilization treatment at high temperature, and to appropriately adjust a reaction between a base resin and a curing agent during a production of the laminated composite film. The two-component curable solventless adhesive comprises a base resin and a curing agent, wherein the base resin contains a polyol having an acid group and a secondary or tertiary terminal hydroxyl group accounting for 30% or more of the entire terminal hydroxyl groups of the polyol, and the curing agent contains an isocyanate group-terminated urethane prepolymer containing at least an aralkyl polyisocyanate and/or a modified substance thereof as a raw polyisocyanate, and a content of a low molecular weight polyisocyanate is defined.
摘要:
A method of manufacturing a printed circuit board is provided. The method includes preliminarily forming a plurality of test pattern layers for detecting the depth of an inner layer in a multilayer printed circuit board such that at least a part of a lower test pattern layer is not overlaid with any upper test pattern layer when viewed from a drill entrance side, and preliminarily forming a surface conductor layer; applying a voltage between the surface conductor layer and the test pattern layers; performing drilling toward one test pattern layer, and detecting a current produced when the drill comes into contact with the test pattern to measure the depth of the layer (D1); performing drilling toward the other test pattern layer, and measuring the depth of the layer (D2); and performing drilling up to just before the conductor-wiring layer based on a depth calculated from D1 and D2.
摘要:
To provide a water-soluble working fluid which less adversely affects the human body and the ecological system as compared with conventional water-soluble working fluids, which has high rotting resistance, and which provides excellent working performance.The water-soluble working fluid of the invention contains methyldicyclohexylamine.
摘要:
An agricultural chemical composition which enables a wide range of herbicidal compounds including ones showing phytotoxicity to crop plants, etc. upon mere application to exhibit a sufficient herbicidal effect and to show reduced or no phytotoxicity to the crop plants. The agricultural chemical composition comprises (A) a herbicidal compound selected from the group consisting of sulfonylurea compounds, sulfonamide compounds, chloroacetanilide compounds, thiocarbamate compounds, pyrimidinyloxy(thio)benzoic acid compounds, tetrazolinone compounds, pyrazole compounds, cyclohexanedione compounds, phenoxycarboxylic acid compounds, oxazinone compounds, and difluoromethanesulfonylanilide compounds or salts thereof and (B) a compound selected among benzoic acid compounds.
摘要:
A water-soluble metalworking fluid contains: at least either one of (A) a block polyalkylene glycol represented by the following formula (1) and (B) a polyalkylene glycol monoether represented by the following formula (2); and (C) an alkanolamine fatty acid salt, HO(EO)a—(PO)b-(EO)cH (1) in which EO represents —CH2CH2O— and PO represents —CH(CH3)CH2O— or —CH2CH(CH3)O—; each unit of (EO)a, (PO)b and (EO)c is block-bonded; and a and c each is an integer of 1 to 30 and b is an integer of 5 to 100, RO(R′O)dH (2) in which R represents an alkyl group having 1 to 30 carbon atoms and R′O represents PO or EO; mole fraction of EO is less than 100%; and d is an integer of 1 or 50.
摘要:
Water-based metalworking fluid contains: (A) alkanolamine represented by the following formula (1) and/or (B) alkanolamine represented by the following formula (2); and (C) 2-pyridylthio-1-oxide salt. In the formula (1): each R1 represents hydrogen or an alkyl group having 1 to 3 carbon atoms; n represents 2 or 3; and plural R1 may be mutually the same or different on condition that not all R1 represent hydrogen. In the formula (2): R2 represents an alkyl group having 1 to 10 carbon atoms; and Z1 and Z2 each represent an alkylene group having 2 to 8 carbon atoms.
摘要:
It is possible to measure a 3-dimensional shape by using a projector and an imaging device without requiring calibration in advance. A pattern light is applied from a projector to an object and this is imaged by an imaging device to capture an image as an input. An in-camera parameter, an in-projector parameter, a parameter of positional relationship between the camera and the projector are estimated. By using the estimation results, a 3-dimensional shape of the object is measured. When a laser pointer is attached to the projector and a laser is applied to the object for capturing an image as an input, scaling of the object shape can also be estimated. Moreover, when measuring a plurality of objects or measuring the same objects a plurality of times, the accuracy of the 3-dimensional shape respectively obtained can be increased by simultaneously processing the inputs. Moreover, when one of projector and the camera is fixed and the other is moved while measuring the same object a plurality of times, the accuracy of the 3-dimensional shape obtained as a result can be increased by performing bundle adjustment.
摘要:
There is provided a drilling method capable of improving machining accuracy of a printed board drilling apparatus as a whole by decreasing dispersion of the machining accuracy even if it is a multi-spindle printed board drilling apparatus. A misalignment of an axial center of a drill with respect to a designed axial center in X and Y directions is detected in advance per a certain number of revolutions of each spindle that rotates the drill. Holes of two or more types of diameter are made on a printed board by making holes of at least one diameter, e.g., an exposure master hole, per each spindle and by making holes of all other diameters almost simultaneously by all of the spindles.