Ishihara Sangyo Kaisha Ltd.

Kusatsu, Japan

Ishihara Sangyo Kaisha Ltd.

Kusatsu, Japan
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Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2015-06-30

Provided are: titanium oxide fine particles having small primary particle diameters and small agglomerated particle diameters; and a method for producing titanium oxide fine particles. The BET diameters of the titanium oxide fine particles are 1-50 nm; the agglomerated particle diameters thereof are 1-200 nm; and the (agglomerated particle diameter)/(BET diameter) ratio is 1-40. Titanium (oxy)chloride is hydrolyzed in an aqueous solvent, while controlling the pH range and the temperature range. Preferably, titanium (oxy)chloride is subjected to a primary hydrolysis in an aqueous solvent, and a secondary hydrolysis is subsequently carried out, while adding titanium (oxy)chloride thereto.


At present, various herbicidal compositions have been developed and use, but there are a variety of types of weeds to be controlled, and their development lasts for a long period of time. Thus, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect has been desired. The present invention relates to a herbicidal composition comprising (a) nicosulfuron or its salt and (b) S-metolachlor or its salt. According to the present invention, a herbicidal composition having a broad herbicidal spectrum, having high activity and having a long-lasting effect can be provided.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2017-08-30

To provide a highly active herbicidal composition to control undesired plants by synergistic herbicidal effects. The present invention provides a herbicidal composition comprising (A) metobromuron or its salt, and (B) at least one herbicidal compound selected from the group consisting of chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb and indanofan, or its alkyl ester or its salt; and a herbicidal method of using it.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2017-07-05

Provided are: metallic copper particles exhibiting excellent low-temperature sintering properties at temperatures equal to or lower than 300C; and a production method therefor. In these metallic copper particles, metallic copper fine particles are adhered to the surfaces of large-diameter metallic copper particles. With regard to the metallic copper particles to be produced, copper oxide and hypophosphoric acid and/or a salt thereof are mixed and reduced, preferably in the presence of 1-500 mass% of gelatin and/or collagen peptide. The reduction reaction temperature is preferably in the range of 20-100C. The produced metallic copper particles have a volume resistivity value when heated to a temperature of 300C under a nitrogen atmosphere of 110^(-2) cm or less.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2017-02-01

The present invention provides: a composition containing (a) a glycerin acetic acid fatty acid ester and (b) a particular insecticidal compound; and a method for suppressing plant virus infection transmitted by winged pests, the method including applying the composition to a crop.


Provided is a titanium dioxide pigment having minimal yellow color and minimal yellowing due to exposure, i.e., good yellowing resistance and high pigment performance such as brightness. Also provided is a titanium dioxide pigment which has a reduced amount of volatile moisture and which does not readily decompose when blended with a resin or the like. In the present invention, a compound including 0.05-20% by mass of phosphorus and an alkaline earth metal is present on surfaces of titanium dioxide particles having an average particle diameter of 0.15-1.0 m. The titanium dioxide pigment is manufactured by mixing an alkaline earth metal compound, a phosphate compound, and titanium dioxide particles having an average particle diameter of 0.15-1.0 m, and bonding the compound including phosphorus and an alkaline earth metal to the titanium dioxide particles.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2017-05-10

Provided are: titanium oxide fine particles having small primary particle diameters and small agglomerated particle diameters; and a method for producing titanium oxide fine particles. The BET diameters of the titanium oxide fine particles are 1-50 nm; the agglomerated particle diameters thereof are 1-200 nm; and the (agglomerated particle diameter)/(BET diameter) ratio is 1-40. Titanium (oxy)chloride is hydrolyzed in an aqueous solvent, while controlling the pH range and the temperature range. Preferably, titanium (oxy)chloride is subjected to a primary hydrolysis in an aqueous solvent, and a secondary hydrolysis is subsequently carried out, while adding titanium (oxy)chloride thereto.


Provided is a titanium dioxide pigment having minimal yellow color and minimal yellowing due to exposure, i.e., good yellowing resistance and high pigment performance such as brightness. Also provided is a titanium dioxide pigment which has a reduced amount of volatile moisture and which does not readily decompose when blended with a resin or the like. In the present invention, a compound including 0.05-20% by mass of phosphorus and an alkaline earth metal is present on surfaces of titanium dioxide particles having an average particle diameter of 0.15-1.0 m. The titanium dioxide pigment is manufactured by mixing an alkaline earth metal compound, a phosphate compound, and titanium dioxide particles having an average particle diameter of 0.15-1.0 m, and bonding the compound including phosphorus and an alkaline earth metal to the titanium dioxide particles.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2016-08-15

To provide a fungicidal composition having stable and high fungicidal effects against cultivated crops infected with plant diseases resulting from plant diseases. A fungicidal composition containing, as active ingredients, (a) a benzoylpyridine derivative represented by the formula (I) or its salt: wherein when A is N, B is CX^(4); when A is CH, B is N; each of X^(1 )and X^(2 )which are independent of each other, is a halogen atom, an alkoxy group, a hydroxyl group, an alkyl group, a CF_(3 )group or an alkylthio group; X^(3 )is a hydrogen atom, a halogen atom, an alkoxy group, an alkyl group, a CF_(3 )group or an alkylthio group; X^(4 )is a hydrogen atom, a halogen atom, an alkoxy group, an alkyl group, a CF_(3 )group or an alkylthio group; R^(1 )is an alkyl group; R^(2) is an alkoxy group; p is 0, 1 or 2; and each of R^(2) and R^(2) is an alkoxy group, and (b) at least one additional fungicide.


Patent
Ishihara Sangyo Kaisha Ltd. | Date: 2016-07-26

Titanium dioxide and an electro-conductive titanium oxide which each includes particles having a large major-axis length in a large proportion and comprises columnar particles having a satisfactory particle size distribution. A titanium compound, an alkali metal compound, and an oxyphosphorus compound are heated/fired in the presence of titanium dioxide nucleus crystals having an aspect ratio of 2 or higher to grow the titanium dioxide nucleus crystals. Subsequently, a titanium compound, an alkali metal compound, and an oxyphosphorus compound are further added and heated/fired in the presence of the grown titanium dioxide nucleus crystals. Thus, titanium dioxide is produced which comprises columnar particles having a weight-average major-axis length of 7.0-15.0 m and in which particles having a major-axis length of 10 m or longer account for 15 wt. % or more of all the particles. A solution of a tin compound and a solution of compounds of antimony, phosphorus, etc. are added to a suspension obtained by suspending the titanium dioxide. The particles are sedimented. Subsequently, the product obtained is heated/fired to produce an electro-conductive titanium oxide which comprises the titanium dioxide and an electro-conductive coating formed on the surface thereof.

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