OJSC Efremov Synthetic Rubber Enterprise

Ефремовский завод синтетического каучука

Synthetic low molecular weight polybutadiene rubber Efrodiene-73K

Specification
Properties Value
Appearance Viscous transparent
colorless or light yellow liquid
Content of 1,2-vinyl, % 23-30
Dynamic viscosity, mPa·s, at 38°C 550-750
Weight loss during drying (105°C, 2 hours), %, no more 0.5
Number average molecular weight, Mn 2600-3800
Polydispersity coefficient, Mw/Mn, no more 1.2

Description

Efrodiene-73K is a product of the polymerization of 1,3-butadiene in the presence of an organolithium catalyst in a toluene solution.

Areas of use

It is used in the production of tires and rubber products as a reaction plasticizer for rubber compounds, automotive sealants, coatings and adhesives.

Packaging and transportation

Efrodiene-73K is packaged in steel barrels with a capacity of 100 dm³ to 230 dm³, IBC or consumer containers. The product can be transported by any type of transport.

Warranty period

Two years from the date of manufacture.

Worldwide analogue:

LBR-302 of Kuraray (Japan).

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