TOP > 外国特許検索 > PRODUCTION METHOD FOR READILY DISPERSIBLE CELLULOSE COMPOSITION, READILY DISPERSIBLE CELLULOSE COMPOSITION, CELLULOSE DISPERSION RESIN COMPOSITION, AND PRODUCTION METHOD FOR WATER-BASED DISPERSANT FOR CELLULOSE

PRODUCTION METHOD FOR READILY DISPERSIBLE CELLULOSE COMPOSITION, READILY DISPERSIBLE CELLULOSE COMPOSITION, CELLULOSE DISPERSION RESIN COMPOSITION, AND PRODUCTION METHOD FOR WATER-BASED DISPERSANT FOR CELLULOSE

外国特許コード F200010100
整理番号 4596
掲載日 2020年5月18日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2015JP060029
国際公開番号 WO 2015152189
国際出願日 平成27年3月30日(2015.3.30)
国際公開日 平成27年10月8日(2015.10.8)
優先権データ
  • 特願2014-072483 (2014.3.31) JP
発明の名称 (英語) PRODUCTION METHOD FOR READILY DISPERSIBLE CELLULOSE COMPOSITION, READILY DISPERSIBLE CELLULOSE COMPOSITION, CELLULOSE DISPERSION RESIN COMPOSITION, AND PRODUCTION METHOD FOR WATER-BASED DISPERSANT FOR CELLULOSE
発明の概要(英語) The purpose of the present invention is to provide technology for facilitating the dispersion of cellulose within a hydrophobic substance such as a resin without performing nano-cellulose surface modification or the like by using a simple and effective method to treat cellulose (which is a hydrophilic substance) with a polymer dispersant that was developed for dispersing a fine hydrophobic substance such as a pigment in a system in which water is the main medium. This objective is achieved by: a production method in which a polymer dispersant that has a block copolymer structure that includes a segment (A) that has resin affinity and a segment (B) that has cellulose-adsorbing properties is dissolved in a hydrophilic organic solvent solution, a surfactant is added to the result, a water-based dispersant that contains the polymer dispersant is subsequently produced by adding water, and the obtained water-based dispersant is added to cellulose that is in a hydrous state or a dry state in order to obtain a readily dispersible cellulose composition; a production method for the water-based dispersant that is used in the aforementioned production method; a readily dispersible cellulose composition; and a cellulose dispersion resin composition that uses the readily dispersible cellulose composition.
従来技術、競合技術の概要(英語) BACKGROUND ART
Cellulose fibers, a substance having a basic skeleton of all plants, more than one trillion ton accumulation on earth and, tree planting from the fact that the resource can be reproduced by an, effective utilization thereof is desired. Cellulose fibers, the lightness of the steel regardless of whether or not in 1/5, the strength of the steel 5 times or more, low coefficient of linear thermal expansion of 1/50 glass fibers having. Therefore, cellulose fibers, as a filler in the matrix of a resin or the like containing, provide mechanical strength has been proposed a technique (patent document 1). In addition, cellulose fibers have the purpose of enhancing the mechanical strength, steaming and cellulosic fibers, cellulose nanofibers (CNF, the microfibrillated plant fiber) in the additive is present in a dispersed state for the agent fibrous reinforcing resin has been proposed (patent document 2). In addition, in the same manner as CNF defibration as obtained by treating cellulosic fibers, cellulose nanocrystals (CNC) is known. Is CNF, mechanical solution of the cellulose fibers produced on the pasteboard and the fibers obtained, about 4-100 nm fiber width, fiber length 5 μm more than that of the fiber. Is CNC, such as acid hydrolysis of cellulose fibers obtained by performing a chemical treatment of a crystal, the crystal width about 10-50 nm, about 500 nm crystal length of crystal. And these CNF is CNC, collectively referred to as nano-cellulose. Nano-cellulose, a high specific surface area (250-300m2 /g) and, compared to steel and light in weight and high strength.
Nano-cellulose, and the thermal deformation is small compared to the glass. High strength and low thermal expansion nano-cellulose, and is therefore useful as sustained resource material, for example, nano-cellulose polymer materials such as resins in combination with high strength, low thermal expansion for a composite material, aerogel material, by self-organization of the chiral nematic liquid crystal phase CNC using the optical anisotropic material, the functional group is introduced into the nano-cellulose high development and of the functional material has been created. On the other hand, nano-cellulose, since the hydroxyl group-rich, strong polar hydrophilic, hydrophobic polarity versatility not inferior in view of compatibility with a resin. For this reason, the development of nano-cellulose material, by chemical treatment, surface modification of cellulose nano or nano and a functional group introduced to the cellulose, the versatility of the nano-cellulose resin to improve the compatibility of the have been studied. In other words, the versatility of the nano-cellulose to improve the dispersion property with respect to the resin has been studied.
In addition, cellulose fibers as a filler in the preparation of the resin composition can be a general purpose, and a dispersant, the dispersibility of the cellulose fibers and general-purpose resin, it is possible to improve the compatibility has been studied. In non-patent document 1, a surfactant () cellulose nanocrystals by adsorption, organic solvent dispersion of the cellulose nanocrystals is improved. In non-patent document 2, the cellulose nanocrystals adsorbed surfactant isotactic polypropylene (iPP) as a reinforcement material and the production of composite materials, less than about 1.4 times alone iPP and the tensile strength is improved. In the above-mentioned Patent Document 2, of the thermoplastic resin in the case of using cellulose as a reinforcing material, thereby suppressing generation of aggregates of cellulose, for the purpose of uniformly dispersing the cellulose resin, and a hydrophilic cellulose fiber and a specific HLB and (hydrophilic-lipophilic balance) value additive having used (low-molecular-weight surfactant), a cellulose fiber in the additive is causing a dispersed state.
  • 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
  • DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • IMAI Takahiro
  • AOYAGI Taiyo
  • SHIMANAKA Hiroyuki
  • TSUJII Yoshinobu
  • SAKAKIBARA Keita
  • GOTO Atsushi
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 DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR 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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