Metal oxide composite sol, coating composition, and optical member

一种涂布组合物、氧化物的技术，应用在2的摩领域，能够解决边缘厚度厚等问题，达到透明性高、折射率高、分散性良好的效果

Inactive Publication Date: 2010-08-25
NISSAN CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refractive index of this lens is about 1.50, which is lower than that of a glass lens (about 1.52), so in the case of a lens for nearsightedness, there is a disadvantage that the edge thickness is thick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

reference example 1

[0153] Reference example 1 (preparation of tungstic acid oligomer)

[0154] In a 200-liter stainless steel container, 5.7 kg of sodium tungstate (containing 69.2 mass % WO 3 , Daiichi Raw Element Chemical Industry Co., Ltd.) was diluted in 125 kg of pure water, and then made to flow through a hydrogen-type cation exchange resin (Amber Laite (registered trademark) IR-120B, Olugano Co., Ltd.) Pillar. After the cation exchange, 570 kg of pure water was added to the obtained tungstic acid aqueous solution for dilution, and then 852 g of isopropylamine was added under stirring to obtain a tungstic acid oligomer. The resulting tungstic acid oligomer, WO 3 0.56% by mass, isopropylamine / WO 3 The molar ratio was 0.86.

reference example 2

[0155] Reference example 2 (modulation of antimony pentoxide colloidal particles)

[0156] Add 8.5 kg of antimony trioxide (manufactured in Sanguo, Guangdong, containing 99.5% by mass of Sb) to a 100-liter stainless steel container 2 o 3 ), 41.0kg of pure water and 6.9kg of potassium hydroxide (containing 95% by mass KOH), slowly added 5.7kg of 35% by mass hydrogen peroxide under stirring. The resulting potassium antimonate aqueous solution, as Sb 2 o 5 15.1% by mass, 10.56% by mass as KOH, K 2 O / Sb 2 o 5 The molar ratio is 2.4. The resulting potassium antimonate aqueous solution 62.1kg is diluted to Sb with pure water 2 o 5 It was 2.5% by mass, and then it was made to flow through a column filled with a hydrogen-form cation exchange resin (Amberlite IR-120B, manufactured by Olugano Co., Ltd.). After the cation exchange, 4.5 kg of diisopropylamine was added to the obtained aqueous solution of antimony acid under stirring to obtain an aqueous sol of antimony pentoxide ...

reference example 3

[0157] Reference example 3 (preparation of antimony pentoxide-silica composite colloidal particles)

[0158] Potassium silicate aqueous solution (containing 20.0% by mass SiO 2 , manufactured by Nissan Chemical Industry Co., Ltd.) 171.0 g was diluted with 1422 g of pure water, and then 117.1 g of potassium antimonate aqueous solution (containing 14.6% by mass of Sb 2 o 5 ) were mixed together and continued to stir for 1 hour to obtain a mixed aqueous solution of potassium silicate and potassium antimonate. 1540 g of the obtained mixed aqueous solution of potassium silicate and potassium antimonate was passed through a column filled with a hydrogen-type cation exchange resin (Amberlite IR-120B, manufactured by Olgano Co., Ltd.) to obtain antimony pentoxide-silica The aqueous sol of composite colloidal particles is 2703g. All metal oxides (Sb 2 o 5 +SiO2 2 ) concentration of 1.9% by mass, SiO 2 / Sb 2 o 5 The mass ratio is 2 / 1, and the particle size of primary particles ...

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Abstract

To provide a sol of metal oxide composite colloidal particles which are almost completely inhibited from being discolored by photoexcitation, contain titanium oxide excellent in light resistance and weatherability, and have a high refractive index. [MEANS FOR SOLVING PROBLEMS] The metal oxide composite colloidal particles comprise titanium oxide / tin oxide / zirconium oxide / tungsten oxide composite colloidal particles which have a primary-particle diameter of 2-50 nm and have an SnO2 / TiO2 molar ratio of 0.1-1.0, ZrO2 / TiO2 molar ratio of 0.1-0.4, and WO3 / TiO2 molar ratio of 0.03-0.15.

Description

technical field [0001] The invention relates to primary particle diameters of 2 to 50nm, SnO 2 / TiO 2 The molar ratio of ZrO is 0.1~1.0, ZrO 2 / TiO 2 The molar ratio is 0.1 to 0.4, and WO 3 / TiO 2 Titanium oxide-tin oxide-zirconia-tungsten oxide composite colloidal particles with a molar ratio of 0.03 to 0.15, and the above-mentioned titanium oxide-tin oxide-zirconia-tungsten oxide composite colloidal particles as the core and coated on the particle surface Titanium oxide-tin oxide-zirconia-tungsten oxide composite colloidal particles coated with acidic oxides, and dispersing these composite colloidal particles in water and / Or a sol formed in an organic solvent. [0002] In addition, the present invention relates to a coating composition containing the above-mentioned titanium oxide-tin oxide-zirconia-tungsten oxide composite colloidal particles, and a coating composition containing titanium oxide-tin oxide-zirconia-tungsten oxide composite colloidal particles as the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00B82Y20/00B82Y30/00C01B33/12G02B1/10G02B1/11G02B1/115G02B1/14G02C7/00
CPCC01P2002/50C01P2006/82C01P2004/64B82Y30/00C01G41/006C01G25/006C01P2004/84C01G30/005C09C1/0081G02B1/105G02B1/11C01P2006/10C01G41/02C01P2006/22C01P2006/60Y10T428/2982C01G23/00C01G41/00G02B1/14
Inventor 小山欣也浅田根子
Owner NISSAN CHEM CORP
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