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Tinuvin234
Evonik
Siwin-UA234
70321-86-7
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Siwin-UA234
Ultraviolet Absorber
UV Absorber 234 is a strong ultraviolet absorber. It has a low volatility at high temperatures and good compatibility with polymers. UA 234 is highly effective for polymers usually processed at high temperatures, such as films and fiber.
Typical Physical Properties
Chemical Name: 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) phenol
CAS NO.：70321-86-7
Appearance | Light yellow powder |
Purity | ≥99% |
Light transmittance | ≥97% （460nm） ≥98% （500nm） |
Melting point | 137-141oC |
Volatiles | ≤0.3% |
Ash | ≤0.1% |
Applications
The product is mainly used for polycarbonate, polyesters, polyacetal, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers. Protect materials from ultraviolet radiation.
Packaging and Storage
Package: 25kg carton inner with plastic bag or as customer`s requirement.
Storage: Keep container tightly closed in a dry and well-ventilated place.
The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.
All safety information is provided in the Safety Data Sheet.
Siwin-UA234
Ultraviolet Absorber
UV Absorber 234 is a strong ultraviolet absorber. It has a low volatility at high temperatures and good compatibility with polymers. UA 234 is highly effective for polymers usually processed at high temperatures, such as films and fiber.
Typical Physical Properties
Chemical Name: 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) phenol
CAS NO.：70321-86-7
Appearance | Light yellow powder |
Purity | ≥99% |
Light transmittance | ≥97% （460nm） ≥98% （500nm） |
Melting point | 137-141oC |
Volatiles | ≤0.3% |
Ash | ≤0.1% |
Applications
The product is mainly used for polycarbonate, polyesters, polyacetal, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers. Protect materials from ultraviolet radiation.
Packaging and Storage
Package: 25kg carton inner with plastic bag or as customer`s requirement.
Storage: Keep container tightly closed in a dry and well-ventilated place.
The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.
All safety information is provided in the Safety Data Sheet.
