Unlock instant, AI-driven research and patent intelligence for your innovation.

Organic/inorganic composite, method for producing same, and ultraviolet blocking agent using same

A complex and ultraviolet technology, applied in the direction of zinc organic compounds, titanium organic compounds, organic chemistry, etc., can solve the problems of reduced productivity, long-term stability, inability to completely eliminate whitening, and low UV shielding efficiency. Side effects, excellent stability effects

Active Publication Date: 2020-08-04
SERASOO CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method is most suitable for the current UV shielding products in the form of mixing chemical UV shielding agents and physical UV shielding agents in an appropriate ratio, and still has the above-mentioned fundamental shortcomings
The second method is to include inorganic substances or polymer particles and organic ultraviolet shielding agents on the surface of titanium dioxide as an inorganic shielding agent or inside the particles, which compensates for skin safety, but has a complicated preparation process and ultraviolet shielding efficiency. not high disadvantage
However, the whitening phenomenon cannot be completely eliminated, and the smaller particle size has disadvantages in terms of skin penetration
[0006] Recently, in order to make up for the shortcomings of chemical organic screening agents and physical inorganic screening agents, research related to organic-inorganic hybrid type complexes has been actively carried out, but the shortcomings of the existing chemical or physical ultraviolet screening agents described above have not been resolved. Has a problem of reduction in productivity, long-term stability, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic/inorganic composite, method for producing same, and ultraviolet blocking agent using same
  • Organic/inorganic composite, method for producing same, and ultraviolet blocking agent using same
  • Organic/inorganic composite, method for producing same, and ultraviolet blocking agent using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] In the preparation method of the present invention, the inorganic oxide particles in the first step can be conventional inorganic oxides used in this field. Preferably, in order to remove surface moisture and improve reactivity with coupling agents, dried and Modified inorganic oxides. A more specific description is as follows, that is, under the temperature condition of 100-130°C, the inorganic oxide particles are dried for 1 hour to 3 hours, preferably, the inorganic oxide particles are dried under the temperature condition of 100-120°C. Drying is performed for 1.5 hours to 2.5 hours. Afterwards, under argon gas condition, the dried inorganic oxide particles are injected into anhydrous toluene and stirred for 30 minutes to 2 hours to carry out the modification treatment, preferably 50 minutes to 1.5 hours for the modification treatment. In this case, the amount of inorganic oxide particles used is as follows, that is, 1 to 4 g of inorganic oxide particles can be used...

Embodiment 1

[0058] Embodiment 1: Preparation of organic-inorganic (ZnO) complex

[0059] (1) Preparation of a compound represented by Chemical Formula 3-1-1

[0060] In a vacuum dryer at a temperature of 110° C., 2 g of zinc oxide particles (ZnO) with an average particle diameter of 15 to 35 nm were dried for 2 hours, and then added to 200 ml of anhydrous toluene under argon gas. Zinc oxide particles were prepared by stirring for 1 hour after charging.

[0061] Next, 1 ml of a compound represented by the following chemical formula 2-1-1 was added to the anhydrous toluene solution containing the zinc oxide particles, and then refluxed for 15 hours under argon to react. Then, after filtering and washing with toluene to remove unreacted components, the reaction product was vacuum-dried for 5 hours to remove toluene, thereby preparing a compound represented by the following Chemical Formula 3-1-1.

[0062] Chemical formula 2-1-1:

[0063] In the above chemical formula 2-1-1, R 3 is prop...

Embodiment 2

[0073] Embodiment 2: prepare organic-inorganic (titanium dioxide (TiO 2 ))Complex

[0074] The organic-inorganic composite was prepared by the same method as in Example 1 above, replacing the ZnO particles by using TiO with an average particle size of 15-35nm 2 particles to prepare an organic-inorganic composite including a compound represented by the following Chemical Formula 1-1-2. In the prepared organic-inorganic complex, the combination ratio of Chemical Formula 3-1-1 and Chemical Formula 4 is as follows, that is, per 1 g of the compound represented by Chemical Formula 3-1-1 to about 0.13 g of the compound represented by Chemical Formula 4 combined.

[0075] Chemical formula 1-1-2:

[0076] In the above chemical formula 1-1-2, R 1 , R 2 is a hydrogen atom, R 3 is a propyl group, the connecting group of the part represented by * of Si is combined with the adjacent O and / or C, the connecting group of the part represented by * of O is combined with the adjacent Si, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a novel organic / inorganic composite, a method for producing the same, and an ultraviolet blocking agent using the same. More specifically, the present invention relates to a novel organic / inorganic composite obtained by complementing disadvantages of an organic ultraviolet blocking material and an inorganic ultraviolet blocking material and enhancing advantages thereof, a method for producing the same at a high yield, and an ultraviolet blocking agent using the same.

Description

technical field [0001] The present invention relates to a novel organic-inorganic complex having an excellent ultraviolet shielding effect composed of organic and inorganic substances, a preparation method thereof, and an ultraviolet shielding agent using the same. Background technique [0002] Usually, when ultraviolet rays included in sunlight are excessively irradiated to the skin, the formation of erythema or melanin production in skin cells is promoted, causing freckles or blemishes, and reacting with sebum secreted in the epidermis to generate lipid peroxidation substances, to cause skin problems, and in severe cases, it is also known as the cause of skin cancer. According to the wavelength, ultraviolet rays are divided into ultraviolet A (UV-A) (320~400nm), ultraviolet B (UV-B) (280~320nm), ultraviolet C (UV-C) (200~280nm), the closer to the shorter wavelength Ultraviolet C has greater energy, but most of the short-wavelength ultraviolet rays are absorbed in the atmo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/35A61K8/89A61K8/29A61K8/25A61K8/27A61K8/49A61Q17/04
CPCA61K8/25A61K8/27A61K8/29A61Q17/04A61K2800/58A61K8/463A61K8/585C07F7/0812A61K8/355A61K8/89A61K8/49A61K8/58C07F3/06C07F7/0836C07F7/28
Inventor 柳东善
Owner SERASOO CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com