An ultraviolet absorber that absorbs uVA rays

Uv Absorber UVP-327

2- (2 '-hydroxy-3', 5 '-diterophenyl) -5-benzotriazole chloride

This product is a UV absorber, its characteristics and USES are similar to UV-326, can strongly absorb UV wavelengths of 270 ~ 380nm, good chemical stability, minimal volatility. Compatibility with polyolefin is good. Especially suitable for polyethylene and polypropylene. In addition, it can also be used in POLYvinyl chloride, polymethyl methacrylate, polyformaldehyde, polyurethane, unsaturated polyester, ABS resin, epoxy resin and cellulose resin, etc. The product has excellent heat resisting sublimation, washing resistance, gas fading resistance and mechanical property retention. Combined with antioxidants for a significant synergistic effect. To improve the thermo-oxygen stability of the product. The general amount of this product in plastics is 1% ~ 3%.

This product has low toxicity. Japan, The United States, France and Italy permit this product to be used in polyolefin plastics in contact with food with the amount of 0.5%, other plastics in contact with food with the amount of 0.2% in Italy, Japan and France with the amount of 0.5%.

Uv absorber RMB

Resorcinol esters monobenzoic acid

Properties and USES The product is white crystalline powder. Melting point 132 ~ 135℃, boiling point 140℃ (20Pa). Loose density 0.68g/cm3 (20%). Soluble in acetone and ethanol, slightly soluble in benzene, water, n-heptane, etc.

The product is an ULTRAVIOLET stabilizer and its efficacy is similar to that of dibenzophenone light stabilizer. Mainly used in POLYvinyl chloride, cellulose resin, polystyrene, general dosage 1% ~ 2%.

Commercial name light stabilizer AM-101

2,2 '-thio-bis (4-tert-octyl phenoxy) nickel

Properties and USES The product is a green powder. The absorption peak in the ULTRAVIOLET region is 290nm (in chloroform). It is suitable for polyolefin plastics such as polyethylene and polypropylene, etc. It is especially good for the light stability of film and fiber products. And can improve the processing performance. It has good synergistic effect with ultraviolet absorber. Or to further improve the efficiency of light stabilization. Its main disadvantage is that the color is darker, so that the product coloring, at the same time at high temperature and thioester assistant antioxidant action, so that the product hair gray black.

Safety Precautions The product is toxic and should be paid attention to when used.