Prodotti chimici speciali

ULTRANOX™ 626 is a high performance solid organophosphite antioxidant.

ULTRANOX™ 626 displays the benefits as below:

• • Excellent colour stability during compounding, fabrication and end use
• • Reduction in polymer degradation during processing
• • Improved gas fading performance in many applications
• • High performance at low loading levels for more cost-effective formulations

ULTRANOX™ 626 is suitable to use in applications as below:

• • Polyolefins
• • Polyesters
• • Styrenics
• • Engineering thermoplastics
• • PVC
• • Elastomers
• • Adhesives
• • Higher phosphorous content than competitive phosphite antioxidants
• • Synergism when used with light stabilizers such as benzophenones and benzotriazoles

RUVA-93 by Otsuka Chemical is 2-Propenoic acid 2-methyl-, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl ester. It is a reactive ultraviolet stabilizer. It is used in plastic lenses, film, sheets, packaging material, containers, fiber, and as alternative plastic to glass. It is a reactive ultraviolet absorber that is able to copolymerize efficiently with a variety of vinyl monomers such as methacrylic, styrenic, and acrylonitrile monomers. Provides permanent placement of the benzotriazole in the polymer. Imparts high weatherability to thin films and fibers. Provides permanence of the stabilizer in the resin and improved compatibility even in very high loadings. RUVA-93 offers excellent environmental acceptability, expanded technology options, and the ability to design new UV polymer screens with unique properties.