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Light Stabilizer UV-2908

Product model:

UV-2908

Classification:

UV Absorber

Key words:

Product Features

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Product Details

Chemical Name: hexadecyl 3,5-di-tert-butyl-4-hydroxy-benzoate，

　　　　　　　　 3,5-di-t-Butyl-4-Hydroxybenzoic Acid,Hexadecyl Ester;

CAS No.: 67845-93-6

EC No.: 267-342-2

Molecular Formula: C₃₁H₅₄O₃

Molecular Weight: 475

Molecular Structure:

Quality Standard:

Item	Specifications
Appearance	white powder
Assay，%	≥98.5
Melting Point，℃	≥58
Volatility，%	≤0.5
Ash Content，%	≤0.2

Function:

UV-2908 is a hindered benzoate photostabilizer,an efficient anti-ultraviolet free radical scavenger,resistant to gas fading,and low alkaline.It has low volatility,low colorability,good chemical stability,and can withstand acids and alkalis.Its low chemical activity makes it suitable for polyolefin systems that require the addition of halogen flame retardants or peroxides.

(1)It is an efficient free radical scavenger with good photostability and antioxidant properties.

(2)It resists NOx gas fading and has a neutral pH value.

(3)It has a synergistic effect with hindered amines.(4)It has high stability for PP and flame-retardant polyolefin systems.

Applications:

The product is widely used in(1)PE:films,flat yarns,injection molding and rotational molding products;(2)PP:films,flat yarns,injection molding products,flame-retardant products,TPO;(3)PET,PBT,PC,soft PVC,flavors and fragrances,candles.

Dosage:

Within the recommended applications,the optimal dosage varies depending on the specific use,the base resin,and processing conditions,typically ranging between 0.08%and 0.6%.This product can be used alone or in combination with benzophenone UV absorbers(such as UV-531,etc.)or phosphite antioxidants,exhibiting excellent synergistic effects.

Storage: Keep it in a cool and dry place with tight closure.

Package: 20kgs/box or as required by the customer.

Expiration Date: one year.