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Compound ultraviolet light absorber and preparation method thereof

A technology of ultraviolet rays and absorbers, which is applied in the field of compound ultraviolet absorbers and its preparation, can solve the problems of single ingredients and poor absorption effects, and achieve the effects of preventing oxidation, good ultraviolet absorbing effects, and preventing color light changes

Pending Publication Date: 2021-06-25
河南瑞奇特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a compound type ultraviolet absorber and its preparation method, which has the advantages of simple manufacturing process, etc., and solves the technical problems of single component and poor absorption effect of ultraviolet absorbers on the market

Method used

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  • Compound ultraviolet light absorber and preparation method thereof
  • Compound ultraviolet light absorber and preparation method thereof
  • Compound ultraviolet light absorber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment a

[0045] Such as embodiment a, 52 parts of 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole,

[0046] 21 parts 2,4-dihydroxybenzophenone,

[0047] 52 parts tetrakis[3-(3'5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid]pentaerythritol,

[0048] 32 parts of 2,6-di-tert-butyl-p-cresol.

Embodiment b

[0049] Such as embodiment b, 55 parts of 2-(2'-hydroxyl-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole,

[0050] 25 parts of 2,4-dihydroxybenzophenone,

[0051] 55 parts tetrakis[3-(3'5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid]pentaerythritol,

[0052] 35 parts of 2,6-di-tert-butyl-p-cresol.

Embodiment c

[0053] Such as embodiment c, 60 parts of 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole,

[0054] 30 parts of 2,4-dihydroxybenzophenone,

[0055] 60 parts tetrakis [3-(3'5'-di-tert-butyl-4'-hydroxyphenyl) propionic acid] pentaerythritol,

[0056] 40 parts of 2,6-di-tert-butyl-p-cresol.

[0057] The experimental data in a medium-to-high-intensity environment are as follows:

[0058]

[0059]

[0060]

[0061]

[0062]

[0063] Preferably, the composite ultraviolet absorber consists of 2-(2'-hydroxyl-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole, phenyl o-hydroxybenzoate, 2-(2'-hydroxyl-5'-methylphenyl) benzotriazole, the composite antioxidant is composed of tetrakis [3-(3'5'-di-tert-butyl-4'-hydroxyphenyl) Propionic acid] pentaerythritol, copper dialkyl dithiophosphate, glucose oxidation alcohol form, the parts by weight of each raw material are:

[0064] 50-60 parts of 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriaz...

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Abstract

The invention relates to the technical field of plastic additives, in particular to a compound ultraviolet light absorber and a preparation method thereof.The compound ultraviolet light absorber is formed by compounding 50-70% by weight of a compound ultraviolet light absorber and 30-50% by weight of a compound antioxidant, and the compound ultraviolet light absorber comprises two or more of phenyl o-hydroxybenzoate, 2- (2'-hydroxy-5'-methyl-phenyl) benzotriazole, 2, 4-dihydroxy benzophenone, 2 -(2'-hydroxy-3', 5' -dicyclopentadienyl ) benzotriazole and 2- (2'- hydroxy -3'- tert-butyl -5'- methylphenyl)- 5-chlorobenzotriazole, wherein the composite antioxidant comprises tetrakis [3 -(3' ,5' - di-tert-butyl -4'- hydroxyphenyl) propionic acid] pentaerythritol, glucose oxide alcohol, and comprises two or more of 2,6 di-tert-butyl p-cresol and copper dialkyl dithiophosphate.

Description

technical field [0001] The invention relates to the technical field of plastic additives, in particular to a composite ultraviolet absorber and a preparation method thereof. Background technique [0002] In the later stage of the plastic production process, it is very important to keep the color unchanged for a long time. Anti-yellowing is very important, so the production of plastic generally needs to add anti-ultraviolet absorbers. Plastic ultraviolet absorbers are a very important additive. It mainly absorbs ultraviolet rays to protect plastic role. The application principle of ultraviolet absorber is that it has the effect of absorbing ultraviolet light within a certain range. The strength of ultraviolet absorber generally depends on its ability to absorb ultraviolet band. The wavelength of general ultraviolet absorber is 200nm-400nm. It is very destructive to the surface of the plastic, so adding a UV absorber can just absorb the UV light. [0003] Traditional ultravi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/3475C08K5/134C08K5/132C08K5/13
CPCC08K5/3475C08K5/1345C08K5/132C08K5/13C08K2201/014
Inventor 陈继瑞刘建立樊登科宋莹换
Owner 河南瑞奇特新材料有限公司
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