Rubber Accelerator TBBS (NS)

SPECIFICATION & DATA SHEET

Trade Name:

Rubber Accelerator TBBS (NS)

Chemical Name:

N-tert-butyl-2-benzothiazolyl sulfonamide

Molecular Formula

C₁₁H₁₄N₂S₂

CAS No.:

95-31-8

Product Information:

Specification

Appearance (visual inspection):

white granule

Assay content % ≥

95

Initial M.P.℃≥

105

Loss on drying %≤:

0.40

Ash content %≤:

0.40

Free amines content%≤

0.40

Strength of grain(N)

0.8-2.5

Insoluble in Methanol %≤

0.50

Recommended Applications

In natural and synthetic rubber tire compounds; TBBS is normally used alone or with small quantities of secondary accelerators in combination with sulfur.

TBBS is also used in industrial rubber products with higher levels of secondary accelerators, like as the TMTD to obtain faster vulcanization cycles and improved aging resistance TBBS may also be used in EPDM and NBR compounding as the primary accelerator, giving good scorch delay and fast cure rates. In comparison to CBS it displays a slightly longer scorch delay and is slightly more active. In NR, SBR, BR and blends, TBBS, when used at a 10% lower level, will give equal modulus to CBS and NOBS.

Handling and Storage recommendations

Store TBBS in single stacked pallets in a cool, dry, well-ventilated area, avoiding exposure of the packaged product to direct sunlight. Double stacking of palletized material can result in unusually compacted product or broken granules.

Usually the shelf time is 12 months while the recommend use of date is 6 months.

Package

Bag：25kg/bag

Pallet(1.1*1.1)：600kg/P