• 专利标题:   Production of aqueous dispersion of few-layer graphene nanosheets used for coated article, involves mixing graphite particles with perfluorosulfonate ionomer in aqueous liquid, and arranging ionomer as thin and continuous layer.
  • 专利号:   WO2015094919-A2, WO2015094919-A3, CN105829244-A, EP3083495-A2, US2017029280-A1, JP2017504554-W
  • 发明人:   JULIUS D, ZIN M, DIVIGALPITIYA R, KORBA G A, KIM M
  • 专利权人:   3M INNOVATIVE PROPERTIES CO
  • 国际专利分类:   C09C001/46, C01B031/04, B82Y040/00, C09D201/06, C09D007/12, C08K003/04, C08K007/00, C09D127/12, C09D005/24, C01B032/15, C01B032/18, C01B032/182
  • 专利详细信息:   WO2015094919-A2 25 Jun 2015 C09C-001/46 201552 Pages: 15 English
  • 申请详细信息:   WO2015094919-A2 WOUS069803 11 Dec 2014
  • 优先权号:   US918345P, US15106793

▎ 摘  要

NOVELTY - Graphite particles are mixed with a perfluorosulfonate ionomer in an aqueous liquid, to form an aqueous dispersion of graphite particles. The aqueous dispersion is ultrasonically processed to form an aqueous dispersion of few-layer graphene nanosheets. The perfluorosulfonate ionomer is provided as a thin and continuous layer on the few-layer graphene nanosheets. USE - Production of aqueous dispersion of few-layer graphene nanosheets used for coated article (claimed) and production of transparent conductive films for electronic devices. ADVANTAGE - The graphite is exfoliated economically by simple method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) composition, which comprises aqueous dispersion of a mixture of several few-layer graphene nanosheets and perfluorosulfonate ionomer; and (2) method of providing a coated article, which involves applying the composition on the substrate.