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Basic information:

Chemical properties:

Product Name	Parylene F/VT-4
CAS Registry Number	1785-64-4
Molecular Formula	C16H8F8
Molecular Structure
Molecular Weight	352.2220
Type	Intermediate
Origin	China
Packing	1kg,5kg,10kg,25kg Carton or drum
Appearance	White powder
Storage	Cool and dry condition, avoid light
Shelf time	24 months

Properties:

EINECS: 249-236-8
Basic information:

Properties:

ChemicaL name: Methylene bis[(3-(2-benzotriazolyl)-2-hydroxy-5-tert-octylphenyl]
CAS NO: 103597-45-1
Structure:

Specification:
Appearance: light yellow powder
Melting point: 193-198
Assay: 99% Min
Volatile: 0.5%max
Ash: 0.1%maxIntroduction:
Transmittance:  @460nm≥97%   @500nm≥98%

UV-360 is a very low volatile benzotriazole UV Absorber used in a variety of polymers and resin compositions. Its applications include acrylic resins, polyalkylene terephthalates, polycarbonates, modified polyhenylene ether or sulfide compounds, polyamides, polyacetals, polyolefins, styrenics, elastomers and high performance plastics.
Storage: UV-360 should be stored in a closed system,and be kept in a dry and dark place without any
light exposure.
Package: Net 25kg carton with inner plastic bag.

Chemical name: 2-(2'-Hydroxy-5'-methylphenyl)-benzotriazole
CAS NO:2440-22-4

Introduction:
UV-P is a benzotriazole type UV absorber. It has a high absorption in the wavelength
of 270~340nm. It is also efficient for the light stabilization of polyvinyl chloride, unsaturated
polyurethane, polystyrene, coatings and lacquers.
Specification:
Appearance: white to yellowish crystal powder
Melting Point: 128~131℃
Content (HPLC) : 99% Min.
Transmittance: 440nm≥98%   500nm≥99%
Ash: 0.1% Max.
Volatiles: 0.5% Max.

Property:
Odorless, don’t bring smell to polymers.
Insensitive to metal ion
Non-flammable, non-explosion, non-toxic, harmless to health.
Very high photo stability for its strong ability to absorb light especially in UV region (270~340nm)
Very stable to heat and can be used in plastic which require high processing temperature.

Chemical name：Hexadecyl 3,5-bis-tert-butyl-hydroxybenzoate
Molecular formula：C31H54O3
Molecular weight：474.8
Structural formula：
 
CAS NO：67845-93-6
Melting point：59.0-66.0℃
Content (GC) ：≥98.5%
Volatile matter：≤0.5%
Ash content：≤0.2%
Appearance：White powder
Purpose：This product is an excellent light stabilizer, low volatility, small coloring, good chemical stability, acid and alkali resistance. Suitable for PP and PE polyolefin plastics, the general dosage is 0.25 ~ 0.1%. This product can be used alone or with benzophenone UV stabilizer or phosphite ester antioxidant, showing good synergistic effect.

Chemical name : 2-Hydroxy-4-n-octoxybenzophenone
Introduction : UV- 531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability for plastics and other organic polymers. Due to its highly effective broad UV absorption properties and excellent polymer compatibility, UV- 531 offers maximum polymer protection and low color contribution, retards yellowing and loss of physical properties.
CAS NO : 1843-05-6
 Formula : C21H26O3
Structure :

Specification:
Appearance : light yellow powder
Melting Range : 47-49 °C
Assay : 99% Min.
Volatile Matter : < 0.5% Max.
Transmissirity: 450nm≥ 95 %，500nm≥ 97%

Chemical name: 2-[2'-hydroxy-3',5'-bis(-dimethyl benzyl)-phenyl]benzotriazole
Molecular Formula ： C30H29N3O
CAS NO.:70321-86-7
Application ： UV-234 is a kind of yellowish powder, melting point is 139.5-141 ℃ , it is a fine light stabilizer, suitable for PP, TPE , hard PVC, POM, PA, PC, PBT/PET, PMMA,etc.
Specification ： 
Appearance: light yellow powder 
Melting Point: ≥ 139.5-141 ℃ 
Volatile Matter: ≤ 0.5% 
Ash Content: ≤ 0.05% 
Purity: ≥ 99% 
Transmissirity: 460nm≥ 97 %   500nm≥ 98% 
Packing: 25kg paper drum or carton