PROCESS FOR PRODUCING DISPERSION OF FINE INORGANIC PARTICLES, CURABLE COMPOSITION CONTAINING SAID DISPERSION, AND CURED OBJECT OBTAINED THEREFROM

Title:

PROCESS FOR PRODUCING DISPERSION OF FINE INORGANIC PARTICLES, CURABLE COMPOSITION CONTAINING SAID DISPERSION, AND CURED OBJECT OBTAINED THEREFROM

Document Type and Number:

WIPO Patent Application WO/2016/093014

Kind Code:

A1

Abstract:

The purposes of the present invention are: to obtain a stable dispersion with a small dispersant amount to thereby obtain a high-refractive-index cured object for optical members; and to provide a process for producing a dispersion of fine inorganic particles, the process needing no use of any small-particle-diameter medium which is extremely expensive and is usable in limited dispersing machines, causing no over-dispersion under high-solid-concentration conditions, and being capable of greatly shortening the period of dispersing step. The process is for producing a dispersion of fine inorganic particles using a medium-type wet-process dispersing machine, and is characterized in that when supplying the following (A) to (D) to the wet-process dispersing machine, at least (D) is supplied last. (A) Zirconium oxide nanoparticles (B) Silane coupling agent (C) Dispersing medium (D) Dispersant Also provided are a curable composition which contains a dispersion obtained by the production process, and a cured object obtained from the composition.

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Inventors:

TAKESHITA NAOHIRO (JP)
KOBAYASHI NOBUO (JP)
ODANI YASUKO (JP)
TAKESHITA ENA (JP)

Application Number:

PCT/JP2015/081842

Publication Date:

June 16, 2016

Filing Date:

November 12, 2015

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS (JP)

International Classes:

C01G25/02; C08F2/44; G02B1/04

Foreign References:

JP2010254889A	2010-11-11
JP2009221070A	2009-10-01
JP2010189506A	2010-09-02
JP2000159842A	2000-06-13

Other References:

YUKI MINAMI: "Kinzoku Sankabutsu Nano Ryushi no Bunsantai no Sakusei to Ko Kussetsuritsu Zairyo eno Oyo ni Kansuru Kenkyu", HAKUSHI RONBUN, September 2013 (2013-09-01), pages 22 - 45, Retrieved from the Internet [retrieved on 20151214]

Attorney, Agent or Firm:

KONO MICHIHIRO (JP)
Michihiro Kono (JP)

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