Abstract:
PROBLEM TO BE SOLVED: To provide a novel crystalline transformation of fipronyl, and a method for producing said crystalline transformation, and also a composition for combating pests and parasites.SOLUTION: Use of a novel crystalline transformation IV of fipronyl of formula I below that exists in a triclinic crystalline system having center symmetric space group P-1. Said fipronyl is dissolved into acetone and crystallized to obtain crystalline transformation IV, and which is used, as it is (crystalline transformation IV), as a composition for controlling pests. High purity fipronyl of said crystalline transformation IV is a raw material for converting to crystalline transformation IV by further tempering the crystalline transformation IV at 90 to 100°C, or to crystalline transformation V by tempering at 100 to 130°C.
Abstract:
PROBLEM TO BE SOLVED: To provide a novel crystalline modification to pyraclostrobin, and to provide a method for production and use of the novel modification for the production of a plant protection agent.SOLUTION: The crystalline modification II to pyraclostrobin shows at least four reflections represented by formula in an X-ray powder diffraction figure at 25°C.
Abstract:
PROBLEM TO BE SOLVED: To provide a novel crystalline transformation of fipronyl of the formula below that was found and of which characteristics were determined, and a novel method for producing said crystalline transformation with high yield while excluding the production of other crystalline transformed forms, also a mixture and composition for killing insects and parasites comprising said crystalline transformation, and a method of their use for combating pests and parasites.SOLUTION: A crystalline transformation of fipronyl that has a particular X-ray powder diffraction chart, and undergoes, at 105°C to 145°C, phase transformation to two other crystalline transformations respectively having melting points of 196 to 197°C and 202 to 203°C.
Abstract:
PROBLEM TO BE SOLVED: To provide a fipronyl crystal allowing easy filtration and drying with less dust in a production procedure and a composition which is blended with the crystal, has formulation stability and is for insecticidal and parasiticidal mixtures.SOLUTION: A solid fipronyl is present as a monoclinic system having a center-symmetry space group C2/c, shows a specific reflection in an X-ray powder diffraction diagram recorded at 25°C by using Cu-Kα radiation rays and contains at least 85 wt.% of a crystal transformation I of fipronyl. A method of producing the crystal transformation I comprises dissolving a solid fipronyl different from the crystal transformation I in a solvent selected from one or more of alcohols, acetonitrile(AN), dimethylsulfoxide(DMSO), one or more of benzene derivatives, etc. and crystallizing from the resultant solution. When the solvent is AN, crystallization is carried out at 40°C or lower. When the solvent is DMSO, crystallization is carried out at 80°C or lower.
Abstract:
PROBLEM TO BE SOLVED: To provide a novel crystal-transformed fipronil and an insecticidal and a parasiticidal composition.SOLUTION: A fipronil of a triclinic-system crystal transformation V is obtained by crystallizing a solid-form fipronil of formula (I) with dimethylsulfoxide at 100-150°C or acetonitrile at 60-81°C as solvent. A combination of the fipronil with an other insecticidal or parasiticidal compound provides an insecticidal or a parasiticidal composition having a synergistic effect against a specified target of an insect, an acarid or a parasite. The fipronil can be used as a mixture with a fungicidal compound.
Abstract:
The invention relates to a method for producing an Sn(ll) cross-linked novolac-material, the Sn(ll) cross-linked novolac-material obtained according to the invention, to a method for producing an electroactive material which contains a carbon phase C and a tin phase and/or tin oxide phase, comprising the method for producing an Sn(ll) cross-linked novolac-material and a subsequent carbonisation step, the electroactive material obtained according to the claimed method, and electrochemical cells and batteries containing said electroactive material.
Abstract:
The present invention relates to a process for producing composite materials which consist essentially of a) at least one oxidic phase and b) at least one organic polymer phase, by copolymerizing - at least one compound A selected from aryloxy metallates, aryloxy semimetallates and aryloxy esters of non-metals which form oxo acids and are different from carbon and nitrogen, with - at least one compound B selected from formaldehyde and formaldehyde equivalents, in a reaction medium which is essentially anhydrous, the compound B being used in an amount such that the molar ratio of formaldehyde to the aryloxy groups in the compound A is at least 0.9:1.