CAS NO. 60303-68-6

two types:Arkema Vultac TB7 equivalent(sulfur content 29.5-31.5 %, softening point 95-115 C) & TB710 equivalent(sulfur content 26.4-28.4%, softening point 75-95 C);nitrosamine-free vulcanizing & curing agent for different rubbers,latex,vegetable oils;bleaching agent & catalyst for rosin,rosin esters and derivates

Synonym:
Mixture of tert-butylphenol disulfide polymer and sulfur;

Arkema Vultac TB7 equivalent;

Arkema Vultac TB710 equivalent;

poly alkylphenol disulfide;

Poly-tert-butylphenol disulfide; 
Para-tert-butylphenol disulfide polymer;
Alkylphenol disulfide polymer sulfur donor;
Alkylphenol disulfide polymer;
Para-tertiobutylphenol Disulfide Polymer; 
Tert-butylphenol disulfide polymer;
Curing Resin

 

Specifications:

Vultac TB7 equivalent 

Composition: Para-tert-butylphenol disulfide(> 95 % ) + sulfur(< 3 %)

 

‍‍‍‍‍Item	Standard	Test Way
Appearance	Yellow to light brown pastilles or powder	Visual
Sulfur content, %	29.5-31.5	Combustion
Softening point, ℃	95-115	Ring & Ball

 

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Vultac TB710 equivalent

Composition:Para-tert-butylphenol disulfide(90 % ) + sulfur(< 3 %)+stearic acid(10%)

 

‍Item	Standard	Test Way
Appearance	brown pastilles or powder	Visual
Sulfur content, %	26.4-28.4	Combustion
Softening point, ℃	75-95	Ring & Ball
Stearic acid content,%	9.0-11.0	FTIR

 

‍

Application:

• Alkylphenol disulfide polymer TB7 /‍TB710  is a Sulfur donor for natural and synthetic rubber
• Alkylphenol disulfide polymer TB7/‍TB710 produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics.
• Alkylphenol disulfide polymer TB7‍/‍TB710  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 Alkylphenol disulfide polymer TB7/‍TB710  is used in the inner-liner, chafer,bead apex, sidewalls, and tread.
• Industrial applications include noise damping blocks, motor mounts, dock fenders, elastic threads, automobile engine hoses, gaskets, belts, and other industrial rubber products that require good heat resistance.
• Alkylphenol disulfide polymer TB7/‍TB710  also aid in rubber processing.  
• Alkylphenol disulfide polymer TB7/‍TB710  polychloroprene vulcanizates have improved flex life.
• Alkylphenol disulfide polymer TB7‍/‍TB710  is also an excellent bleaching agent,antioxidant,catalysts in the disproportionation of rosin or rosin esters.
• Alkylphenol disulfide polymer VA-TB7/‍TB710   is a good vulcanizing agent for vegetable oils.
• Dosage: 0.5~20 phr.2 phr is most preferably

 

 

Characteristics:

• 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, Alkylphenol disulfide polymer TB7/‍TB710 tends to improve dispersion of other additives in the rubber.
• Crosslink Type: Alkylphenol disulfide polymer TB7 ‍/‍TB710 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.
• Non-nitrosamine: Alkylphenol disulfide polymer TB7/‍TB710 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.

 

 

Advantages:

• Non-nitrosamine
• Lower tack to make it easier to stock and handle
• Lower volatility
• Lower volatile degradation products
• Good compatibility with many rubber polymers
• Very good antioxidant properties
• Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks
• Increase the resinous plasticizer during processing
• Increase the green tack in NBR,BR and SBR based compounds
• Improve the dispersion of other compound ingredients into rubber

 

 

Package:
25kgs/paper drum;25kgs/kraft bag or as customer’s request;

 

 

Storage: 
It should be stored in dry & cool environment(below 86 °F/30℃) in closed original containers.