Antioxidant 300
BRAND NAME：  WANOX 300

Antioxidant 300 is a highly efficient and multi-functional sulfur containing hindered phenolic antioxidant,
It possesses excellent structure and dual effects of main and auxiliary antioxidants. It can achieve good synergistic effects when combined with carbon black. Antioxidant 300 has been used in plastics, rubber, petroleum products and rosin resin.
It can obtain a unique effect when utilized in polyethylene pipe materials with high density, black polyethylene materials for outdoor use and polyethylene wire and cable materials including communication cable sheathing materials, insulation materials and semi-conductive shielding material. Antioxidant 300 enjoys the reputation of “the antioxidant for polyethylene cable and pipe materials”
1. Chemical Properties
Chemical name: 4, 4’–Thio-bis (3-methyl-6 tert-butylphenol)
Cas No 96-69-5
Molecular formula: C₂₂H₃₀O₂S
Structural formula: ：

2. Specification
Antioxidant 300 includes categories, as shown in the following table:

3. Applications Performance
(1) Thermal oxidation efficiency of Antioxidant 300 when used independently
Antioxidant 300 has double effects of free radical termination and hydrogen peroxide decomposition, which plays a dual role of main and auxiliary antioxidants. It can be used alone. Other antioxidants, such as 1010, 1076, TCA and 264 are ineffective when used independently, because they only function as termination agent of free radicals and incapable of decomposing hydrogen peroxide. The application must be accompanied by auxiliary antioxidants, such as DLTP, DSTP, DNP and 168.
Antioxidant 300 is multi-functional, highly efficient and convenient.
(2) Antioxidant 300 used with other auxiliary agents
● Antioxidant 300 used with carbon black
When carbon black is used with antioxidants, the effect can be synergistic and antagonistic. It is of importance to choose correct antioxidant and utilize a scientifically designed formula.
Much experimental data and practices confirmed that Antioxidant 300 and carbon black used in conjunction can have synergistic effect, whereas hindered phenol and hindered amine antioxidants (such as 1010, TCA, DNP) used with carbon black can be antagonistic (see Table 5) and reduce stability of the polymer. The effect of catalytic oxidation and adsorption of carbon black is commonly used for phenol and amine antioxidants.
However, sulfur-containing hindered phenol (such as 300, 736) can be rarely adsorbed by the surface of carbon black; instead, they are transferred into chemical compounds with greater antioxidant efficacy under the catalysis of carbon black that enhances stability of the polymer.
● Antioxidant 300 and UV absorbers such as benzophenone UV-531 and benzotriazole Tinuvin-327 used together can have good synergistic effects. The polymer is commonly used in polyethylene agricultural film and the fishing line.
●When Antioxidant 300 used with other antioxidants and auxiliary agents, it would have be an excellent complement in performance, as well as reducing costs. Compounding technology is often used in formula design.
4. Packaging and Storage
The packing is follows:

1. 25kg  per fiber drum with PE lined
   
2. 20kg  per woven bag with PE lined
   
3. 500kg per woven bag with PE lined
   

Products in storage must be protected from moisture and high temperatures.

WANOX 300 belongs to Zibo Wanke Chemical  Co., Ltd. all
It is equivalent to the following products:

“Chemtura antioxidant TBM-6”
“Dragonox-TBM6”
“Flynox-TBM6”
“EURONOX R 300”
“CHINOX 300”
“Thanox 300”
“Lowinox TBM-6”
“ Antioxidant  BNX 358”
“Ethanox 300”
“ SANTONOX TBMC”