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LOW-DENSITY GEL AND PRODUCTION METHOD THEREFOR

外国特許コード F200010081
整理番号 5869
掲載日 2020年5月15日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP031141
国際公開番号 WO 2019039541
国際出願日 平成30年8月23日(2018.8.23)
国際公開日 平成31年2月28日(2019.2.28)
優先権データ
  • 特願2017-162308 (2017.8.25) JP
発明の名称 (英語) LOW-DENSITY GEL AND PRODUCTION METHOD THEREFOR
発明の概要(英語) The low-density gel disclosed in the present invention has a framework which comprises polysiloxane chains and organic polymer chains, wherein the polysiloxane chains and the organic polymer chains have been bonded to each other by covalent bonding in a plurality of positions on both of these chains, with the silicon atoms of the polysiloxane chains serving as bonding sites. The organic polymer chains may be aliphatic hydrocarbon chains. The polysiloxane chains may be polyorganosiloxane chains. The low-density gel is novel and is improved in mechanical properties including bending flexibility.
従来技術、競合技術の概要(英語) BACKGROUND ART
Aerogel and xerogel is a gel body to the low-density, high porosity, as shown in the name of the low density solid phase in the gel. Low density gel is, the characteristic feature, for example, a small specific gravity, larger specific surface area, small in thermal conductivity (high heat resistance). Due to the superior characteristics of these, in the gel body is a low density, for example, insulating material, an insulating material, support, adsorption or the like which are expected to be applied to a variety of applications. However, the conventional low density gel body, because of the low density and exhibits excellent characteristics as described above, because the fragile low-density (low mechanical characteristics). And this frequently, because of the brittleness of the gel body in the manufacturing cost of the low density of the supercritical drying is essential, a low density of the gel in a variety of applications to the obstruction to practical use of. As a more specific example, the silica aerogel is, in general, small specific gravity, a small thermal conductivity and high optical transparency. These features, a multi-layer glass for use as the intermediate layer (insulating layer) is advantageous. However, low mechanical properties of the silica aerogel, the application to the obstruction to practical use of.
Low density silica gel body, has been attempted to improve the mechanical properties. In one example of an attempt, a sol-gel method in the production of low density gel, such as methyltrimethoxysilane and 3 functional silicon compound, silicon compound such as dimethyldimethoxysilane and 2 of the functional mixture is employed as a starting material compound. In this method, the silicon compound derived from the 3 functionality 3 and the three-dimensional network of polysilsesquioxane, a silicon compound derived from the functional 2, 3 relative to the three-dimensional network in the flexible linear polysiloxane chain (branched chain polysiloxane does not have a siloxane bond) and a skeleton having a mixed structure is formed, thereby, the mechanical properties of the low density of the gel body is improved. JP-1-3 is, formed by the method above the low density gel body is disclosed.
  • 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
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • NAKANISHI, Kazuki
  • KANAMORI, Kazuyoshi
  • ZU Guoqing
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 JP 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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