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                                         Information @ a Glance
General
  • Butyl rubber was first developed in the 1940ís by German chemists and commercialized in 1943.
  • The typical composition of butyl rubber is approximately 98% polyisobutylene,with the balance being isoprene. The isoprene units contain a double bond that provides a site for cross linking during vulcanization and are located randomly in the polymer chain.
  • Polyisobutylene  has interesting properties when used as an additive in lubricating oils and motor fuels.

Process

  • Butyl rubber is mixed with best quality chemicals and after proper mixing in the desired temperature and time the same is than delivered to the extruding section and the correct size of the required dimension is extruded

  • The extruded pieces are cut to the appropriate lengths and valve are jamed and the end joined properly under a process well known as splicing in this trade.

  • After due curing of the tubes they are than vacuumed and tested 100% before the same is delivered to the packing section for packing and sending to the customers in proper transport with a view for safe and prompt delivery.

Application

  • Polyisobutylene added in small amounts to the lubricating oils used in machining results in a significant reduction in the generation of oil mist and thus reduces the operator's inhalation of oil mist.
  • Regular butyl is the preferred material for inner tubes, which are manufactured in various sizes from lightweight bicycles to lifestyle bicycles, and from day-use motorcycles to luxury motorcycles.
  • Halo butyl rubber is mainly used for tire inner liner compounds, because of its low air permeability. Bromobutyl is superior to Chlorobutyl, but is more expensive.
  • Butyl rubbers are used in tyre inner tubes and other products that require a good barrier against gases. The thermal stability of these rubbers makes them suitable for use in automotive radiator hoses.

Report

  • LANXESS is a leading producer of butyl rubber which is used in a wide range of applications. The butyl market will grow over the next 15 years and LANXESS expansions will be needed.
  • A major disadvantage of nonhalogenated butyl rubber is its inability to be blended and vulcanized with highly unsaturated elastomers such as styrene-butadiene rubber (SBR), polybutadiene and natural rubber.
  • Worldwide, several companies produce butyl elastomers in different countries. The leading world producers are ExxonMobil and Lanxess.

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