Poly-alkyl phenol disulfide

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Trade Name:VA-TB7 Arkema Vultac TB7 equivalent CAS NO.:60303-68-6 Synonyms:Poly-alkyl phenol disulfide; Para-alkyl phenol Disulfide Polymer;Alkylphenol Disulfide;disulfide alkyl phenol;Poly-tert-butylphenol disulfide;4-(1,1-Dimethylethyl)phenol polymer with sulfur chloride; Structure Formula:(C10H14O)x.(Cl2S2)y Product Specification: Item Specification Appearance Yellow to light brown pastilles Sulfur content, % 29.5~31.5 Softening point (℃) 95~115 Properties and Usage: Usage: 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. 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 tends to improve dispersion of other additives in the rubber. Crosslink Type: VA promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance. Non-nitrosamine: VA does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams. Packing: 25kgs/paper drum; 25kgs/kraft bag; 900kgs/big bag or as customer's request Storage and Shelf Life: It should be stored under suitable conditions (dry & cool). shelf life: 24 months

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Qingdao Aurora chemical Co.,Ltd

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