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Uv Absorber Uv928 Light Stabilizer 928 73936-91-1 928

Uv Absorber Uv928 Light Stabilizer 928 73936-91-1 928

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Brand Name : JTL

Model Number : Stabilizer Uv-928

Certification : ISO9001

Place of Origin : CHINA

MOQ : Negotiation

Price : Negotiation

Supply Ability : 1000 tons / month

Packaging Details : Drum

Classification : Chemical Auxiliary Agent

Molecular Formula : C29H35N3O

Purity : 99% Min

CAS NO : 73936-91-1

Type : Ultraviolet Stablizer, Pharmaceutical Intermediates

Appearance : Light Yellow Crystalline Powder

Other Names : light stabilizer UV-928, 928

Application : Coating Auxiliary Agents, electronics chemicals

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Uv Absorber Uv928; Light Stabilizer 928 73936-91-1 928

Basic Spec

English name: 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl) Phenol; UV absorber-928; UV absorber UV928; light stabilizer 928; 2-(2-2H-benzotriazole)-6-(1-methyl-1-phenyl)ethyl-4- (1,1,3,3-tetramethylbutyl)phenol
English synonym: 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethy)-4-(1,1,3,3-tetramethylbutyl)-Phenol; 928;2-[2 -HYDROXY-3-DIMETHYLBENZYLPHENYL-5-(1,1,3,3-TETRAMETHYLBUTYL)]-2H-BENZOTRIAZOLE;2-6(2H-Benzotriazol-2-yl)-6-(1,1,3,3- Tetramethylbutyl)Phenol; 2-(2H-BENZOTRIAZOL-2-YL)-6-(1-METHYL-1-PHENYLETHYL)-4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL;UV ABSORBER-928;Phenol, 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)-;2-[2-Hydroxy-3-dimethylbenzylphenyl- 5-(1,1,3,3-tetramethylbutyl)]-2H-benzotriazol
CAS No.: 73936-91-1
Molecular formula: C29H35N3O
Molecular weight: 441.6077

Chemical Structure

Physical Specification

Name928/UV absorber-928
CAS NO.73936-91-1
Molecular FormulaC29H35N3O
Molecular Weight441.61
AppearanceLight Yellow Crystalline Powder
Purity99% Min

Welcome to inquire us to get the complete COA

Introduction of UV Absorber / Light Stabilizer

Plastics and other polymer materials produce an automatic oxidation reaction due to the action of ultraviolet rays under sunlight or fluorescence, which causes degradation of the polymer and deterioration, which deteriorates appearance and mechanical properties. Any substance that absorbs the ultraviolet light in sunlight and fluorescent light sources without changing itself is called a UV absorber and is a light stabilizer. When the wavelength of ultraviolet light is 290 nm or less, it is completely absorbed by the ozone layer before reaching the ground, and the problem is ultraviolet light of 290 to 400 nm, and the light energy is related to the aging of the polymer. The role of the ultraviolet absorber is to selectively absorb such high-energy ultraviolet rays, which are converted or consumed by energy conversion to become harmless energy. The ultraviolet wavelength which deteriorates depending on the type of the polymer is also different. The wavelengths that can be most affected are: polyethylene 300 nm, polyvinyl chloride 310 nm, polystyrene 318 nm, polyester 325 nm, polypropylene 310 nm, vinyl chloride-vinyl acetate copolymer 322-364 nm, polyacetal 300-320 nm, polycarbonate The ester was 295 nm, the nitrocellulose was 310 nm, the polymethyl methacrylate was 290 to 315 nm, the thermoplastic resin was 290 to 320 nm, and the unsaturated polyester was 325 nm.
Ultraviolet absorbers can convert high-energy ultraviolet light energy into heat or non-destructive long light waves to protect substances added with UV absorbers from UV damage. It is mainly used as a light stabilizer for plastics, rubber, paints, dyes, etc. to prevent their photodecomposition under long-term exposure to sunlight. It is generally required to have a light color, good miscibility, heat resistance and chemical stability, and low volatility. It is also non-toxic and non-migratory when used in food packaging materials. The sensitive wavelengths of various substances to ultraviolet light are different, and the range of light waves that various ultraviolet absorbers can absorb is also different. Appropriate selection can achieve satisfactory light stability. UV absorbers can be classified into the following categories according to their chemical structure: salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines and others. Commonly used ultraviolet absorbers: UV absorbers uV-9, UV absorber uV-531, UV absorber N-35, UV absorber-928, UV absorber TBS.

Application Of UV-928

  • UV-928 is UV absorber of the hydroxyphenyl benzotriazole class developed specially for high performance coating applications. Its characteristic broadband absorption provides efficient protection to coatings and light sensitive substrates. Its excellent solubility and high thermal and environmental permanence makes it particularly suitable for coatings exposed to high temperature curing processes.

  • UV-928 is recommended for temperature curing system, such as powder coatings, steel coil coatings.

    1. Automobile paint;

    2. Coil coating;

    3. Film coating;

    4. Powder coating;

    UV-928 can be used in combination with a light stabilizer and combinations provide best protection against light degradation.

Packing & Storage

25kgs Fibre Drum, 25kgs Carton, and we can provide other package with customer.

Contact Information

Tel0086 134 35409275
Fax0086 757 84888673
Mobile0086 13670617610


1. Are you a factory or tarding company?

Our company concentrates on on the production, sales and service for plastic and coating additives, fine chemicals and intermediates.

2. Where dose your company locate?

We locate in Heze, Shandong province of China, also have sales rep. in Foshan

3. Can you provide samples for quality checking before placing an order?

Samples are avaliable upon request, but the shipping cost should be paid by customer.

4. How to get the price list?

Please inqire us by alibaba/email.

5. What's your payment term?

TT/Payoneer/Paypal/West Union

Payment Terms

100% TT Before Shipment

Product Tags:

light stabilizer


uv inhibitor additive

China Uv Absorber Uv928 Light Stabilizer 928 73936-91-1 928 factory

Uv Absorber Uv928 Light Stabilizer 928 73936-91-1 928 Images

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