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Coating composition and optical member

A composition and coating technology, which is applied in the field of coating composition and optical components, can solve the problems of thick edges, etc., and achieve the effect of good adhesion and excellent water resistance

Active Publication Date: 2018-09-11
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refractive index of this lens is about 1.50, which is lower than that of glass lenses (about 1.52), so when used as a lens for nearsightedness, there is a disadvantage that the edge thickness becomes thicker

Method used

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  • Coating composition and optical member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] 55.8 parts by mass of γ-glycidoxypropyltrimethoxysilane was added to a glass container equipped with a magnetic stirrer, and 19.5 parts by mass of 0.01 N hydrochloric acid was added dropwise over 3 hours while stirring. After completion of the dropwise addition, stirring was performed for 0.5 hours to obtain a partial hydrolyzate of γ-glycidoxypropyltrimethoxysilane. Combine the surface of the titania-zirconia-tin oxide composite colloidal particles obtained in Production Example 1 with the titania-zirconia-tin oxide composite colloidal particles as the core and the tin oxide-silica composite colloid as a whole covered surface 150 g of methanol sol containing ureapropyltriethoxysilane (30.0% by mass in terms of total metal oxides) 151.0 parts by mass, 65 parts by mass of butyl cellosolve, 0.9 parts by mass of aluminum acetylacetonate as a curing agent and the aforementioned 75.3 parts by mass of the partial hydrolyzate of γ-glycidoxypropyltrimethoxysilane were mixed and...

Embodiment 2

[0103] 55.8 parts by mass of γ-glycidoxypropyltrimethoxysilane was added to a glass container equipped with a magnetic stirrer, and 19.5 parts by mass of 0.01 N hydrochloric acid was added dropwise over 3 hours while stirring. After completion of the dropwise addition, stirring was performed for 0.5 hours to obtain a partial hydrolyzate of γ-glycidoxypropyltrimethoxysilane. The surface of the zirconia-tin oxide composite colloid particles obtained in Production Example 2 with the zirconia-tin oxide composite colloid particles as the core and the silica-tin oxide composite colloids as a whole coated with ureapropyl triethyl 150 g of methanol sol of oxysilane (containing 30.0% by mass in terms of total metal oxides) 151.0 parts by mass, 65 parts by mass of butyl cellosolve, 0.9 parts by mass of aluminum acetylacetonate as a curing agent, and the aforementioned γ-glycidoxy 75.3 parts by mass of a partial hydrolyzate of propyltrimethoxysilane were mixed and sufficiently stirred to...

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Abstract

An object of the present invention is to provide a coating composition and an optical member in which a coating formed by the coating composition has excellent transparency and weather resistance, and is particularly excellent in adhesion to a base material after a weather resistance test. The solution of the present invention is a coating composition containing a silicon-containing substance as the component (S) and colloidal particles (D) as the component (T). The colloidal particles (D) have a diameter of 3 to 100 nm. Colloidal particles of an organosilicon compound having a urea group are bound to the surface of the modified metal oxide colloidal particles (C) with a primary particle size of 2 to 60 nm. The colloidal particles (A) of a metal oxide having a diameter of 10 Å serve as a core, and the surface of the core is partially or entirely covered with a coating (B) composed of colloidal particles of an acidic oxide.

Description

technical field [0001] The present invention relates to a coating composition and an optical member. The coating formed by the coating composition has excellent adhesion to the base material, even after further applying a vapor-deposited film (anti-reflection film) of an inorganic oxide on the coating. etc.), the weather resistance and light resistance of the coating are not reduced, and the discoloration caused by ultraviolet rays is basically completely suppressed. Background technique [0002] Plastic moldings are widely used due to their advantages of light weight, ease of processing, and impact resistance, but on the other hand, they are not sufficiently hard and easily damaged, easily corroded by solvents, easily charged with dust, and have insufficient heat resistance, etc. , Therefore, when used as spectacle lenses, window materials, etc., compared with inorganic glass moldings, there are practical disadvantages. It is therefore proposed to apply protective coatings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/06B32B27/00C09D7/62C09D7/63G02B1/10G02B1/11C09D7/60
CPCB32B27/00G02B1/10G02B1/11B32B27/18B32B27/28B32B2255/00B32B2264/102B32B2307/412B32B2307/712C09D1/00C09D7/60C09D7/67C09D7/40B32B2307/306
Inventor 古川智规小山欣也浅田根子
Owner NISSAN CHEM IND LTD