Rubber Compounding Materials
Vulcanization Materials
Activators


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Function & Compounding


Stearic acid F-2500
Vegetable based stearic acid
Harwick Standard Distribution Corporation
ï

Non-toxic off-white powder, faint odor; titre - minimum 50C, iodine number 10 maximum; acid number - 195 minimum.

Vegetable based grade of stearic acid used to activate rubber and latex as a dispersing agent, lubricant stabilizer and processing aid


Tribasic Lead Sulfate FlowSperse
Various percentages of tribasic lead sulfate in different carriers
Flow Polymers LLC
ï

Paste or elastomeric dispersion.

Ease of incorporation and handling.


Litharge FlowSperse
Various percentages of litharge in different carriers
Flow Polymers LLC
ï

Paste and elastomeric dispersions.

Activator for NR and SRs.


Dibasic Lead Phthalate FlowSperse
Various percentages of dibasic lead phthalate in different carriers
Flow Polymers LLC
ï

Paste and elastomeric dispersions.

Activator


Dibasic Lead Phosphite FlowSperse
Various percentages of dibasic lead phosphite in different carriers
Flow Polymers LLC
ï

Paste and elastomeric dispersions.

Activator


Cadmium Oxide FlowSperse
Various percentages of cadmium oxide in different carriers
Flow Polymers LLC
ï

Paste and elastomeric dispersions

Activators for high heat resistant cure systems, prevents porosity in vulcanizates; dessicant.


Activator Dispersions - Taber brand
Various activators
Taber Inc.
ï

Paste, polymer masterbatches and netted powders of activators; compatibags, slabbed and/or pellitized masterbatches.

Consistent dispersion to improve processing.


Dynamide
Urea powder formulated to improve processing and functionality.
Littlern Corporation
ï

Sp.gr. 1.34; fine white powder; avg. particle size less than 10 micron.

Activator for nitrogen blowing agents; lowers decomposition temperature; reduces odor produced by some blowing agents; secondary accelerator; component of nitrosamine-free curing systems.


Urea, WUF-16
Urea
Sovereign Chemical Company
ï

Coated or oil treated powder

Activator for nitrogen type blowing agents; product is hygroscopic and relatively non-dusting.


Triethylene Glycol
Triethylene glycol
The Dow Chemical Company
ï

Sp.gr. 1.124-1.127; clear, colorless, hygroscopic liquid; Bp. 278-300°C; flash pt. 330°F; d, 9.39 lb/gal. at 20°C.

NR, SR, latex activator with non-black reinforcers.





TEA DLD
Triethanolamine (99%) on silica binder.
Akron Dispersions, Inc.
ï

Sp.gr. 1.414; light gray to tan, dustless, free-flowing powder.

Activator for NR and SBR; neutralizes acidity of clay.


Suprmix Triethanolamine 85
Triethanolamine - silicate blend
The HallStar Co.
ï

Sp.gr. 1.277; light buff, non-dusting powder; pressure sensitive; shipped: fiber drums.

NR, SBR, latex activator; dispersing agent; use in Hi-Sil, Silene and Zeolite loaded stocks; use 3-6% on filler content.


Triethanolamine
Triethanolamine
The Dow Chemical Company
ï

Sp.gr. 1.124-1.130; viscous, pale yellow liquid; slight ammonia odor; hygroscopic; Bp (150 mm). 277-279°C. pH (25% solution); 11.2 flash pt. about 360°F; d, about 9.4 lb/gal.

NR, SR, latex activator; dispersing agent neutralizes clay acidity; improves processing reduces gas permeability; somewhat increase tear resistance; sBR activator with certain accelerators; add directly.


TATM DLD
Triallyl trimellitate on silica binder.
Akron Dispersions, Inc.
ï

Sp.gr. 1.415; off white, dustless, free-flowing powder.

Activator for peroxide vulcanization.


Emery 531
Tallow fatty acid
Cognis
ï

Activator


BIK-OT
Surface-coated urea
Chemtura
ï

Sp.gr. 1.31; fine, white powder; mp, 129-134°C; good storage stability under normal conditions; somewhat hydroscopic.

For CR, IIR, NBR, NR, SBR and EPDM; activator for nitrogen-type blowing agents; activator for thiazole, thiuram and dithiocarbamate accelerators; relatively nondiscoloring and non-staining; reduces odor-producing properties of dinitrosopentamethylene tetramine blowing agents; helps lower decomposition point of Celogen AZ and Kempore types to range normal for rubber curing.


Actone
Surface coated urea
Parabor Industria E Comercio de Produtos Quimicos LTDA
ï

Fine white powder; sp. gr. 1.32; slightly hygroscopic.

Activator for blowing agents; reduces odor of DNPT blowing agents; activator for MBT, MBTS and dithiocarbamates.


Pristerene 9429
Stearic acid.
M.F. Cachat
ï

Tallow based rubber grade stearic acid; titre, 52-60°C, iodine no. 11 max., acid value 192-210 and saponification value 194-212.


Stearic Acid - Industrene
Stearic acid
R.E. Carroll Inc.
ï

White powder or flakes.

Single, double, triple pressed.


Akrochem Stearic Acid-Rubber Grade (RG)
Stearic acid
Akrochem Corp.
ï

Titer 52-64°C; iodine value 10 max.; acid no. 193-213; saponification no. 193-214; Gardner color 10 max.

Dispersing agent and accelerator activator in rubber compounds.





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Click companies below for more information about Activators

Suppliers listed
on this page

Harwick Standard Distribution Corporation

Flow Polymers LLC

Taber Inc.

Littlern Corporation

Sovereign Chemical Company

The Dow Chemical Company

Akron Dispersions, Inc.

The HallStar Co.

Cognis

Chemtura

Parabor Industria E Comercio de Produtos Quimicos LTDA

M.F. Cachat

R.E. Carroll Inc.

Akrochem Corp.

     

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