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Rubber & Plastic additives
Trade Name: Poly-tert-butylphenol disulfide TB7
Poly-tert-butylphenol disulfide TB7
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;Alkylphenol disulfide polymer sulfur donor;
Molecular Formula: C10H14O)x.(Cl2S2)y
Yellow to light brown pastilles
Sulfur content, %
Softening point (℃)
Properties and Usage:
Uses: Sulfur donor for natural and synthetic rubbers. Poly-tert-butylphenol disulfide TB7 produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics. Poly-tert-butylphenol disulfide 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 Poly-tert-butylphenol disulfide TB7 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: Poly-tert-butylphenol disulfide TB7 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.
Non-nitrosamine: Poly-tert-butylphenol disulfide TB7 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.
Or as customer's request