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INORGANIC-PARTICLE COMPOSITE, PRODUCTION METHOD THEREFOR, AND INORGANIC-PARTICLE COMPOSITE DISPERSION

外国特許コード F190009858
整理番号 (S2017-0863-N0)
掲載日 2019年7月26日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP038171
国際公開番号 WO 2019074109
国際出願日 平成30年10月12日(2018.10.12)
国際公開日 平成31年4月18日(2019.4.18)
優先権データ
  • 特願2017-198450 (2017.10.12) JP
  • 特願2018-033385 (2018.2.27) JP
発明の名称 (英語) INORGANIC-PARTICLE COMPOSITE, PRODUCTION METHOD THEREFOR, AND INORGANIC-PARTICLE COMPOSITE DISPERSION
発明の概要(英語) Provided are an inorganic-particle composite exhibiting excellent dispersion stability in a polar solvent, a production method therefor, and an inorganic-particle composite dispersion. This method for producing an inorganic-particle composite includes a step (A) in which a water-soluble salt is added to an inorganic powder and dry mixed or mixed as a paste, and a step (B) in which the same is washed after step (A) to obtain an inorganic-particle composite that contains a component derived from the water-soluble salt, wherein the water-soluble salt is a water-soluble salt for which the acid dissociation constant pKa (H2O) of the acid of the counter anion of the water-soluble salt is greater than zero.
従来技術、競合技術の概要(英語) BACKGROUND ART
Represented by graphene layered nano-plate, high thermal conductivity and having the conductive adhesive and the like, the functional coating film, including the functionality of the functional material printable ink, a material that is expected to be applied to.
Graphite such as sulfuric acid and nitric acid oxidized violently to synthesize a graphene oxide, and then hydrothermal synthesis, the cleavage of epoxy chain to the size of the graphene is disclosed a method (Non-Patent Document 1). Also, 9,9-bis (substituted aryl) and a water-soluble compound having a fluorene skeleton and a graphene oxide aqueous dispersion using a graphene oxide, graphene sheets to obtain the organic dispersion, an aqueous dispersion of a graphene sheet after mixing with an organic solvent, and recovered by a centrifugal sedimentation graphene sheets through the graphene sheet and a step to obtain a dispersion method of the organic has been disclosed (Patent Document 1). In addition, the graphite was added and the particular ionic liquid, such as microwave irradiation of a method of producing graphene dispersion has been proposed (Patent Document 2).
Also, NMP, DMF or DMSO in the salt was added, high shear, ultrasonic treatment is a method of manufacturing graphene (non-patent document 2), is inserted into the interlayer of graphite salt, an interlayer compound thereof and an ultrasonic wave irradiation in pyridine, a method of manufacturing graphene (non-patent document 3) has been proposed. Further, the active methylene compound and derivatives thereof and the basic compound in a liquid containing a graphene has a laminated structure is immersed in a carbon material, graphite flakes by stirring a method (Patent Document 3), a poly-aromatic hydrocarbon compound and graphite are dispersed in a dispersion of graphene flakes are used (Patent Document 4) a method has been proposed also. In addition, graphite lithium borate, lithium salt and a solvent (Patent Document 5) a method of forming a graphene sheet, a permanganic acid salt in a solvent comprising the steps of dipping the graphite crystal, a method of manufacturing the thin-film graphite or graphene (Patent Document 6) and, fine carbon dispersion liquid containing a polyimide precursor obtained by using fine carbon dispersion composition (Patent Document 7) has been proposed. In addition, the clay mineral is not, as a method to improve the dispersibility of the carbon nanotubes, a method of using a salt with an organic solvent has been proposed (Patent Document 8).
Such as the above-described other manufacturing method using a liquid phase, the production of the nanoparticles by dry grinding method has been proposed. To facilitate grinding of the natural graphite as a method, a vacuum environment or in a nitrogen atmosphere is effective to dry grinding method has been reported (Non-Patent Document 4). In addition, a sulfur-containing environment or an environment containing hydrogen and graphite by dry grinding, the edge portion of the hydrogen atom is bonded to sulfur and graphite nano plate can be obtained and reported (Non-Patent Document 5, Patent Document 9). In addition, NaCl was added during the crushing method for producing a graphite nanosheets (non-patent document 6), nano-diamond by grinding together with NaCl, effective in preventing the aggregation of the nano diamond has been reported (Non-Patent Document 7).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOKYO INSTITUTE OF TECHNOLOGY
  • 発明者(英語)
  • ARAO Yoshihiko
  • KUBOUCHI Masatoshi
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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