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1. (CN108602687) Coated fine particles of alkaline-earth metal compound, dispersion in organic solvent, resin composition, and image display device

Office : China
Application Number: 201780007887.9 Application Date: 24.01.2017
Publication Number: 108602687 Publication Date: 28.09.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTJP2017002296 ; Publication Number: Click to see the data
IPC:
C01F 11/18
G02B 5/30
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
11
Compounds of calcium, strontium, or barium
18
Carbonates
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
CPC:
C01F 11/18
G02B 5/30
C01F 11/185
C01F 11/187
C08K 9/04
C08K 2003/265
C09C 3/10
Applicants: UBE INDUSTRIES, LTD.
宇部兴产株式会社
Inventors: SAKAI TAKUMA
酒井拓马
NOGITA RIKA
野北里花
HIMOTO TAKESHI
日元武史
NAGAI ATSUSHI
长井淳
MATSUNAGA TAIZO
松永泰蔵
Agents: 北京三友知识产权代理有限公司 11127
北京三友知识产权代理有限公司 11127
Priority Data: 2016-015870 29.01.2016 JP
2016-063472 28.03.2016 JP
Title: (EN) Coated fine particles of alkaline-earth metal compound, dispersion in organic solvent, resin composition, and image display device
(ZH) 被覆碱土金属化合物微粒、有机溶剂分散液、树脂组合物和图像显示装置
Abstract:
(EN) In order to provide an optical film in which the birefringence of the polymer has been diminished and the transparency is ensured, coated fine particles of an alkaline-earth metal compound are provided, the particles having high dispersibility during film formation at high temperatures. The coated fine particles of an alkaline-earth metal compound comprise fine particles of an alkaline-earth metalcompound and a surface-treating agent with which the surface of the fine particles has been coated. When the coated fine particles are examined by TG-DTA in the air and the mass of the surface-treating agent at the time of TG-DTA initiation is taken as 100 mass%, then the loss in mass of the surface-treating agent in the temperature range of 100 to 300 degree centigrade is 30 mass% or less.
(ZH) 本发明为了提供抵消高分子的双折射、并且确保透明性的光学膜,而提供在高温下的成膜时的分散性高的被覆碱土金属化合物微粒。被覆碱土金属化合物微粒是利用表面处理剂对碱土金属化合物微粒的表面进行被覆而得到的,在大气气氛中进行TG‑DTA时,将TG‑DTA开始时的表面处理剂的质量设为100质量%时,在100℃~300℃的温度范围内的表面处理剂的质量减少率为30质量%以下。
Also published as:
KR1020180110672WO/2017/130946