Rubber accelerator TBBS

Konson^® Rubber Accelerator TBBS

Chemical Name  N-tert-butyl-2-benzothiazole Sulfenamide

Molecular Formula   C₁₁H₁₄N₂S₂

Molecular Weight  238

CAS#   95-31-8

Specifications   GB/T 21840-2008

Appearance                                     White or light yellow powder or granular

Initial Melting Point， (℃)Min       104.0

Final Melting Point   (℃)Min           107.0

Heat Loss    (%)Max                            0.40

Ash   (%)Max                                        0.40

Free amines      (%)Max                      0.5

Methanol insolubles     (%)Max         1.0

Purity    (%)Min                                    96.0

Residue on 150μm Sieve   (%)Max.    0.10

 Properties  Its industrial product is light yellow to brown powder, the density is 1.26~1.32g/cm³, soluble in benzene, chloroform, carbon disulfide, acetone, methanol, alcohol, difficultly soluble in gasoline, insoluble in water, dilute acid and dilute alkali solution.

Applications A delayed action accelerator of vulcanization for natural and synthetic rubber. The speed of vulcanization is similar to CBS’s, but it’s delaying is larger than the CBS. There is little pollution and the color is changeless. It can be used as rubber products of tyre.

Storage  Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

Packing  Coextruded paper bags lined with polyethylene film bags. Net weight 25 kg per bag.