Polyisobutylene, also known as "PIB" or polyisobutene, (C4H8)n), is the homopolymer of isobutylene or 2-methyl-1-propene, on which butyl rubber is based. Polyisobutylene is produced by catalytic polymerization of a hydrocarbon C4 stream from petrochemical origin, very pure and with a high content of isobutylene and some isoprene. The formula for PIB is: (-CH2-C(CH3)2-)n. A well-controlled process is of great importance to secure a narrow molecular weight distribution. PIB’s are classified by their Molecular Weight (g/mol). Polyisobutene (PIB) is used in, lubricants (two stroke oil & greases), adhesives and sealants, LDPE wrapping films, corrosion protection, cosmetics, rubber,
asphalt applications, plastic compounds, electrical insulation in wires & cables and food additives (gum base).
Conventional low molecular weights polyisobutene’s (PIB) are liquid polymers, water white, with a wide range of viscosities: chemically stable and resistant to oxidation by light and fluctuating temperatures.
In lube oil, conventional polyisobutene (C-PIB) and high reactive polyisobutene (HR-PIB) are used as a dispersant in the form of polyisobutenyl succinate and polyisobutenyl succinamide. With the use of detergents, dispersants help minimize smoke or total engine deposits.
Polyisobutenes are used both as extenders and as plasticizers for a variety of vulcanized and other elastomers. They offer a better performance compared to some mineral oils and process oils. PIB is an aid used in processing rubber and acts
Stretch film is a plastic LLDPE (linear low-density polyethylene) film with the capacity of straining and having elastic recovery. Stretch film is used as a wrapping foil for protecting materials within the agricultural or pallet industry. Stretch film needs to
PIB has unique properties. PIB is chemical resistant, gas permeability, odourless, colourless, oxidation resistant, non-toxic, non-skin irritating and contains low moisture. Therefore, PIB can be used in a wide range of sealants and adhesive applications. It is a linear polymer