TOP > 外国特許検索 > Polyionic dendrimer and hydrogel comprising same

Polyionic dendrimer and hydrogel comprising same 実績あり

外国特許コード F120006594
整理番号 BE06301WO
掲載日 2012年5月15日
出願国 欧州特許庁(EPO)
出願番号 10793831
公報番号 2450392
公報番号 2450392
出願日 平成22年6月28日(2010.6.28)
公報発行日 平成24年5月9日(2012.5.9)
公報発行日 平成26年6月25日(2014.6.25)
国際出願番号 JP2010004267
国際公開番号 WO2011001657
国際出願日 平成22年6月28日(2010.6.28)
国際公開日 平成23年1月6日(2011.1.6)
優先権データ
  • 2010JP004267 (2010.6.28) WO
  • 特願2009-156670 (2009.7.1) JP
発明の名称 (英語) Polyionic dendrimer and hydrogel comprising same 実績あり
発明の概要(英語) Provided is a hydrogel which comprises water as the main component at a high water content and has mechanical strength suitable for practical use and which exhibits high transparency and self-healing and shape-retaining properties.
Also provided are both a material for the hydrogel and a novel polyionic dendrimer.
A polyionic dendrimer which comprises a hydrophilic linear polymer as the core and polyester dendrons attached to both terminals of the linear polymer and in which cationic groups are bonded to the surfaces of the dendrons, said cationic groups being selected from the group consisting of guanidine group, thiourea group, and isothiourea group; a material for a hydrogel, which comprises the polyionic dendrimer and clay; and a hydrogel prepared using the material.(see diagramm)
特許請求の範囲(英語) [claim1]
1. A polyionic dendrimer, comprising: a hydrophilic linear polyalkylene glycol as the core, and polyester dendrons attached to both terminals of the polyalkylene glycol , wherein a cationic group selected from the group consisting of a guanidine group, a thiourea group, and an isothiourea group is bonded to a surface of the dendron.
[claim2]
2. The polyionic dendrimer according to Claim 1, wherein the polyester is a polyester composed of a saturated aliphatic carboxylic acid having 3 to 10 carbon atoms in which two or more hydroxyl groups are symmetrically substituted to have symmetric branching.
[claim3]
3. The polyionic dendrimer according to Claim 1 or 2, wherein a cationic group selected from the group consisting of a guanidine group, a thiourea group, and an isothiourea group is bonded to the surface of the dendron via a polyether group.
[claim4]
4. The polyionic dendrimer according to Claim 1 or 2, wherein the polyionic dendrimer is a polyionic dendrimer that is represented by the following formula 1: (see diagramm) wherein n represents the repeating number of polyethylene glycol in the core and is from 20 to 100000, m represents the repeating number of a linker group for introducing cationic groups to the surface and is from 1 to 6, g represents the generation of the dendron and is from 1 to 5, R represents a cationic group selected from the group consisting of a guanidine group, a thiourea group, and an isothiourea group).
[claim5]
5. The polyionic dendrimer according to any one of Claims 1 to 4, wherein the polyionic dendrimer is a polyionic dendrimer that is represented by the following formula 5: (see diagramm) wherein n is from 20 to 100000.
[claim6]
6. A material for a hydrogel, comprising: the polyionic dendrimer according to any one of Claims 1 to 5 and a clay mineral.
[claim7]
7. The material for a hydrogel according to Claim 6, further comprising a linear polymer having an ionic side chain.
[claim8]
8. The material for a hydrogel according to Claim 7, wherein linear polymer having an ionic side chain is an alkali metal salt of polyacrylic acid or polymethacrylic acid.
[claim9]
9. The material for a hydrogel according to any one of Claims 6 to 8, wherein the clay mineral is a clay mineral having a nano sheet structure.
[claim10]
10. The material for a hydrogel according to any one of Claims 6 to 9, wherein the clay mineral is one or more kinds selected from the group consisting of montmorilonite, hectorite, saponite, bidelite, mica, and synthetic mica.
[claim11]
11. A hydrogel, comprising: water in the material for a hydrogel according to any one of Claims 6 to 10.
[claim12]
12. A protein-containing hydrogel, comprising: a physiologically active protein in the hydrogel according to Claim 11.
  • 出願人(英語)
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • MYNAR JUSTIN
  • AIDA TAKUZO
国際特許分類(IPC)
指定国 Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
参考情報 (研究プロジェクト等) ERATO/SORST Creating and applying electronic nano-space by molecular programming AREA
ライセンスをご希望の方、特許の内容に興味を持たれた方は、問合せボタンを押してください。

PAGE TOP

close
close
close
close
close
close