OJSC Efremov Synthetic Rubber Enterprise

Ефремовский завод синтетического каучука

Low molecular weight highly reactive polyisobutylene

Experimental product, construction of a pilot plant with a capacity of 1,500 tons per year is underway, commissioning - 2nd quarter of 2025

Specification
Properties Value for grades
PIB-350 PIB-650 PIB-1000 PIB-1300 PIB-2300
Appearance Viscous transparent colorless mass
Number average molecular weight Mn, g/mol 250-500 501-800 801-1200 1201-1600 2000-2500
Kinematic viscosity at 100°C, mm²/s (cSt) 10-20 21-180 181-400 401-800 1400-2000
Flash point in an open crucible, °C, not less 120 120 120 160 180
Acid number, mg KOH/g, no more 0.10 0.10 0.10 0.10 0.10
Mass content of ash, %, no more 0.05 0.05 0.05 0.05 0.05
Mass content of water, %, no more 0.01 0.01 0.01 0.01 0.01

Structural formula

Description

Low molecular weight highly reactive polyisobutylene is a product of solution polymerization of isobutylene using a special catalytic complex and contains at least 70 % mol. of terminal vinylidene groups.

Areas of use

Low molecular weight highly reactive polyisobutylene is intended for the production of succinimide additives and use as a thickening additive for fuels, lubricating oils and greases, an adhesive agent in the manufacture of stretch films, a modifier for vulcanizable and other elastomers, in the manufacture of adhesives and sealants, as well as emulsifiers in the production of industrial explosives substances.

Transportation and storage

The product is packaged in clean, dry, tightly closed steel barrels, welded or sealed, with a removable top bottom 1A2 with a capacity of 85 to 275 dm³ according to GOST 13950, IBC. The product can be transported by any type of transport.

Warranty period

Two years from the date of manufacture.

© ОАО ЕЗСК 2007-2025