Poly-tert-butylphenol disulfide alkyl phenol disulfide nitrosamine-free vulcanizing agent
reduce color of rosin and rosin gum lower acid value stable quality quick delivery ISO14001 9001
Company Profile:
Company Name: AURORA CHEMICAL CO., LTD.
Year Established: 1997
The world’s leading manufacturer and supplier of Xanthan Gum, Oil Driling Chemicals, Drilling Fluid Additives, Rubber Plastic Additives and Cosmetic Ingredients.
Alkylphenol disulfide polymer powder
Arkema Vultac TB7 equivalent CAS NO.:60303-68-6
Rubber Vulcanizing agents: VA-TB7 |
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Nitrosamine-free vulcanizing agent; ultra-fast curing speed; alkylphenol disulfide polymer vucanizing agent |
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Product Name |
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Poly-tert-butylphenol disulfide; 4-(1,1-Dimethylethyl)phenol polymer with sulfur chloride Tert-butylphenoldisulfide polymer |
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CAS Number |
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60303-68-6 |
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Specification |
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Criterion |
Requirement |
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Appearance |
yellow to light brown pastilles or powder |
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Sulfur content, % (test way:Combustion) |
29.5-31.5 |
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Softening point (℃) (test way:Ring & Ball) |
95-115 |
Applications |
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Uses: Sulfur donor for natural and synthetic rubbers. VA-TB7 produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics. VA-TB7 can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems. In tires VA serials are used in the innerliner, chafer, bead apex, sidewalls, and tread. bleaching agent in the disproportionation of rosin or rosin esters. Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene. Synergism: Can be used with most typical rubber accelerators and sulfur. When used as a partial replacement for sulfur, VA-TB7 tends to improve dispersion of other additives in the rubber. Crosslink Type: VA-TB7 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance. Non-nitrosamine: VA-TB7 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams. |
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Handling & Safety |
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It should be handled with care and prevent contamination of the environment. For more detailed information, please refer to the material safety data sheet. |
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Packing |
(1) 25KG net paper drum lined with PE bag. (2) 25KG net paper bag inner lined with PE bag. (3) 900KG net super sacks. |
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Transportation |
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It is not dangerous material according to the transportation regulations. |
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Storage |
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It should be stored in dry & cool environment(temperature better lower than 30℃) in closed original containers. Shelf life:24 months from the date of manufacture if stored as indicated above.
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