Title:
A manufacturing method of inorganic particulate dispersion liquid, and a manufacturing method of a hardened material for optical members
Document Type and Number:
Japanese Patent JP6083490
Kind Code:
B2
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:
Naohiro Takeshita
Nobuo Kobayashi
Yasuko Otani
Takena Yona
Nobuo Kobayashi
Yasuko Otani
Takena Yona
Application Number:
JP2016517005A
Publication Date:
February 22, 2017
Filing Date:
November 12, 2015
Export Citation:
Assignee:
DIC Corporation
International Classes:
C01G25/02; C08F2/44; C08F292/00; G02B1/04
Domestic Patent References:
| JP2010254889A | 2010-11-11 | |||
| JP2009221070A | 2009-10-01 | |||
| JP2010189506A | 2010-09-02 | |||
| JP2000159842A | 2000-06-13 |
Other References:
JPN6015051659; 南有紀: '金属酸化物ナノ粒子の分散体の作製と高屈折率材料への応用に関する研究' 博士論文 ［検索日 ２０１５．１２．１４］, 201309, ｐ．２２-４５, 大阪市立大学 ［ｏｎｌｉｎｅ］
Attorney, Agent or Firm:
Kono Tsuyo