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LOW-CIS BR

Low-Cis Polybutadiene Rubber (Low-cis BR)

Butadiene elastomers are characterized by an excellent resistance to abrasion, good resistance to fatigue cracking and crack growth. Their extremely low glass transition temperature provides enhanced low temperature performance compared to other general-purpose rubbers.

LVE Intene® low-cis polybutadienes are produced by solution polymerization in an aliphatic solvent, thus greatly improving the environmental friendliness of the whole process.

All Intene® grades are produced by a continuous process using a Lithium-based catalyst system determining the (micro) structure of the final product.
In the case of the grade Intene® K C30AF, a coupling agent is used to obtain a star-branched structure.

Low-cis BR (both linear and branched) has become the product of choice for the industrial modification of plastics in High Impact Polystyrene (HIPS) or Acrylonitrile-Butadiene-Styrene (ABS) and it is also widely used for all types of tyres

INTENE® Low-cis BR

GRADE NAME Cis content % wt Viscosity 5% in
Styrene 25°C
Color (b*) (max) Stabilizer Main Applications TDS
INTENE K 30 AF 38 65 5 Food approved HIPS (high gloss) / ABS
INTENE K 40 AF 38 100 5 Food approved HIPS (medium gloss) / ABS
INTENE K 50 AF 38 170 5 Food approved HIPS
INTENE K 50 AD 38 170 5 Food approved HIPS
INTENE K 60 AF 38 250 5 Food approved HIPS(super impact / ESCR)
INTENE K C30 AF 38 42 5 Food approved HIPS (high gloss) / ABS, Tyre

AF/AD bales wrapped with polystyrene film

INTENE® Low-cis BR

GRADE NAME Cis content % wt Mooney viscosity
ML (1+4) 100°C
Stabilizer Main Applications TDS
INTENE K 50 38 48 Non staining Tyre

wrapped with polyethylene film