Nizhnekamskneftekhim began production of halogenated butyl rubbers, which are chemically modified butyl rubbers, produced by introduction of a halogen (chlorine or bromine) in the polymer chain. In reaction conditions only the isoprene chain of butyl rubber macromolecule is halogenated, all polyisobutylene chains are left unmodified.

RUBBER MAIN FATURES

• Rubbers are odorless and do not emit any harmful substances during storage and processing;

• Halogenation substantially increases butyl rubber vulcanization speed in comparison to unmodified rubber;

• Halogenated butyl rubbers are characterized by high level of covulcanization with high-saturation rubbers;

Chlorine mass content, % 1.15 - 1.35

Bromine mass content, % 1.8 - 2.2

Modulus at 300% elongation, MPa, min. 4

Tensile strength, MPa, min. 12 - 15

Elongation at break, %, min. 400

HALOBUTYL RUBBER BASED RUBBERS AND ARTICLES MAIN FEATURES

Low gas impermeability and high dynamic stability of halobutyl rubbers cap layer in tubeless tires allow for 50-200% increase in tire life

Physical, mechanical and attrition resistance properties of radial tire sidewall rubbers are at standard levels

Excellent ozone and crack resistance even after multiple deformations allow to produce high quality rubbers

High heat resistance of halobutyl rubber vulcanizates allows to use it in curing bag production

Compounded rubbers based on halobutyl rubber, and especially on bromobutyl rubber, posses better adhesion compared to those based on butyl rubber, and bond strength doesn't depend on content of high-unsaturated rubber in the compound

Halogenated butyl rubbers are successfully used for production of high quality rubber-technical articles, namely:

- molded items;

- heat-resistant conveyer belts (high bonding strength with
synthetic cords, high attrition resistance);

- chemically stable container coatings (chemical stability, possibility of low temperature vulcanization);

- corks for pharmaceuticals (simple non-toxic vulcanized systems).

The product is in stock at Nizhnekamskneftekhim warehouses. With all sales requests please contact:

EXPORT DEPARTMENT
Phone: (8555) 37-78-30
Fax: (095) 255-38-27

D.Salyamov