CAS:18600-59-4 Cytec 3638

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Cyasorb UV 3638

Synonym:
UV Absorber UV-3638
Light Stabilizer UV-3638
2,2-(1,4-Phenylene)bis-4H-3,1-benzoxazin-4-one
2,2-(1,4-phenylene)bis((4H-3,1-benzoxazine-4-one)
2,2-benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one)
Ultraviolet Absorber UV-3638
UV-3638

Countertype or Equivalent:
Cytec Cyasorb UV 3638
Cytec 3638
Cyasorb UV 3638

Specification:
Appearance: White to off-white powder Content: ≥98.00%
Volatile matter: ≤0.50%
Ash: ≤0.10%
Melting point: ≥310.00℃

Application:
UV-3638 provides very powerful and broad UV absorption without color smearing. Very good stability to polyester (PET) and polycarbonate (PC). Based on the benzoxepanone structure, 3638 offers short-term thermal stability up to 350°C and long-term thermal stability up to 160°C. TGA (10%) is greater than 371 degrees Celsius. For thermoplastic polyester, nylon, and defense industries with high processing temperatures and stringent requirements for UV absorption. High molecular weight, low volatility, no color stain. It is especially suitable for the optical industry that requires light transmittance and color, such as PET, PC optical material lenses, light diffusing plates for backlight liquid crystal display devices, etc.

Packing:
Packing: 20KG carton
Storage conditions: This product has good storage stability. High temperature and humidity should be avoided during storage and transportation. It should be stored in a cool, dry and ventilated place to prevent moisture and heat.

Safety:
non-dangerous goods



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