Title:
HOLLOW SILICA SOL, METHOD FOR PREPARING SAME, AND COATING COMPOSITION AND PRODUCT THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/001464
Kind Code:
A1
Abstract:
The present invention relates to a hollow silica sol, a method for preparing same, and a coating composition and a product thereof. The hollow silica sol of the present invention contains hollow silica particles and a dispersion medium. A resonance peak area Q1 with a chemical shift of -78 to -88 ppm, a resonance peak area Q2 with a chemical shift of -88 to -98 ppm, a resonance peak area Q3 with a chemical shift of -98 to -108 ppm, and a resonance peak area Q4 with a chemical shift of -108 to -117 ppm corresponding to peak values of the described hollow silica particles measured by means of a 29Si nuclear magnetic resonance spectroscopy satisfy that Q1/(Q1+Q2+Q3+Q4) is substantially 0, Q2/(Q1+Q2+Q3+Q4) is 0.01-0.2, Q3/(Q1+Q2+Q3+Q4) is 0.01-0.6, and Q4/(Q1+Q2+Q3+Q4) is 0.2-0.98. The dispersion medium is water, an organic solvent, or a combination of the two. The hollow silica sol of the present invention is low in viscosity and good in stability, and under the condition that a coating is formed on a base material, the hollow silica sol has a high hardness, a good abrasion resistance, and an improved adhesive force with the base material.
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Inventors:
ZHAO YONGLIANG (CN)
ZHU XIAOMIN (CN)
ZHU XIAOMIN (CN)
Application Number:
PCT/CN2023/090053
Publication Date:
January 04, 2024
Filing Date:
April 23, 2023
Export Citation:
Assignee:
NINGBO DILATO MAT CO LTD (CN)
International Classes:
C01B33/14; C01B33/141; C01B33/145; C09D1/00
Foreign References:
| CN101312909A | 2008-11-26 | |||
| CN105283413A | 2016-01-27 | |||
| CN110128855A | 2019-08-16 | |||
| CN111232993A | 2020-06-05 | |||
| US20040198882A1 | 2004-10-07 |
Attorney, Agent or Firm:
BEIJING CHENGCHENG INTELLECTUAL PROPERTY AGENCY (CN)
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