Product Name:   UV 234

Chemical Name    2-(2H-benzotriazol-2-yl)-4,6- bis(1-methyl-1- phenylethyl) phenol

CAS Number      70321-86-7

Molecular weight   447.6

Specification

1. APPEARANCE LIGHT YELLOW POWDER

2. CONTENT 99% MIN

3. M.P.    137 – 141 DC

4. VOLATILE MATTER    0.5% MAX

5. ASH                   0.1% MAX

6. TRANSMITTANCE

@ 460nm                 97% MIN

@ 500nm                 98% MIN

Applications

 UV 234 is highly effective for polymers usually processed at high temperatures such as polycarbonate, polyesters, polyacetal, polyamides,

polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, where loss of UVA is not tolerated as well as for polyvinylchloride, styrene homo- and copolymers. Applications include molded articles, films, sheets and fibers.

Features/ Benefits

UV 234 features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates. This makes the product especially suitable for applications characterized by high surface area, such as films and fiber. It protects organic polymers as well as pigments from UV light, improving and preserving the technical and visual performance of such applications.

UV 234 has world wide Food Contact Approvals in most polymers and is

especially suitable in packaging applications for food, consumer care

products and pharmaceuticals, preserving the package contents from the

detrimental effects of light.

Guidelines for use

The use levels of UV 234 range between 0.15 and 0.60%, depending on

substrate and performance requirements of the final application. Extensive

performance data of UV 234 alone or in combination with other additives are available in many of the substrates listed above.

Handling & Safety

 In accordance with good industrial practice, handle with care and avoid

unnecessary personal contact. Avoid continuous or repetitive breathing of

dust. Use only with adequate ventilation. Prevent contamination of the

environment. Avoid dust formation and ignition sources. For more detailed

information please refer to the material safety data sheet.