Arkema Vultac 2,3,5 equivalent with different sulfur content and softening point.they are nitrosamine free vulcanizing agent and bleaching agent in the disproportionation of rosin or rosin esters.

 

Synonym:
Amylphenol disulfide polymer 
Arkema Vultac 2 equivalent;

Arkema Vultac 3 equivalent;

Arkema Vultac 5 equivalent;

Poly-tert-amylphenol disulfide;

Phenol, 4-(1,1-dimethylpropyl)-, polymer with sulfur chloride (S2Cl2) 
Curing Resin;

sulfur contained vulcanizing & curing agent;

 

Arkema Vultac 2 equivalent

Composition:Poly-tert-amylphenol disulfide 100%

Specification:

Item	Standard	Test Way
Appearance	brown tacky solid	Visual
Sulfur content, %	21.8-23.8	Combustion
Softening point, ℃	50.0-60.0	Ring & Ball
Specific gravity @ 25℃	1.15	Typical
Flash point closed up	455℉(235℃)	/
Viscosity at 100℃	1000 cP	/
Viscosity at 135℃	100 cP	/
Solubility in water	Insoluble	/
Solubility in organic solvents	Soluble in toluene Insoluble in hexane	/

 

Arkema Vultac 3 equivalent

Composition: Poly-tert-amylphenol disulfide(>95% )+sulfur(<2%)

Specification:

Item	Standard	Test Way
Appearance	Reddish-brown to dark brown pastilles	Visual
Sulfur content, %	27.0-29.0	Combustion
Softening point, ℃	78.0-93.0	Ring & Ball
Specific gravity @ 25℃	1.2	Typical
Flash point closed up	644℉(340℃)	/

 

 

Arkema Vultac 5 equivalent

Composition: Poly-tert-amylphenol disulfide(75% )+silica gel(25%)

Specification:

Item	Standard	Test Way
Appearance	Beige free flowing powder	Visual
Sulfur content, %	20.0-22.0	Combustion
% Passing 50 Mesh	≥98	/
% Passing 20 Mesh	≥99	/
Water content,%	≤2	/

 

 

Applications:

• V2 can be used as a bleaching agent in the disproportionation of rosin or rosin esters.

• V3 and V5 is nitrosamie free vulcanizing & curing agent  for different rubbers.

 

 

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, para tert amylphenol disulfide tends to improve dispersion of other additives in the rubber.

• Crosslink Type: para tert amylphenol disulfide promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.

• Non-nitrosamine: para tert amylphenol disulfide 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:

• V2 : 200kgs/drum

• V3 and V5: 25kgs/kraft bag;25kgs/drum;25kgs/25kgs/carton box

 

Storage:

stock them in dry,cool(temperature within 30℃) and well ventilated place

 

Shelf life:

2 years if stoc as the above conditions indicated