Adhesives

Properties

PIB has unique properties for the production of adhesives:

  • Low moisture
  • Low gas permeability
  • Odourless
  • Tasteless
  • Non-toxic
  • Narrow molecular weight distribution
  • Amorphous structure + LowTg = permanent high flexibility
  • Tailor made adhesives (adhesion, cohesion) due to the presence of low molecular weight (MW) Polybutenes (POLYBUTTM) and high to very high (solid) Polybutenes (POLYBOLTM) in combination with other elastomers, tackifiers and fillers
  • POLYBUTTM (Low MW PIB) = medium cohesion, good adhesion, good wetting
  • POLYBOLTM (High MW PIB) = good cohesion, medium adhesion
  • The combination of POLYBUTTM and POLYBOLTM can fine tune your adhesive

End User Applications

End applications for Polybutenes also include:

  • Colourless Adhesives
  • Diapers
  • Fiber Laminates
  • Foil
  • Food Packaging
  • Industrial Tapes
  • Labels and Tapes
  • Masking and Friction Tapes
  • Paper
  • Paper Laminates
  • Surgical Tapes (Medical Tapes)

Pressure Sensitive Adhesives (PSA), for which the main applications are general as well as insulation tapes:

  • Polybutene improves the tack and peel strength of elastomer
  • Polybutene partially replaces tackifiers, so it is economical

Hot Melt Adhesives (PSA), for which the main applications are packing, binding and sanitary products such as diapers:

  • Polybutene increases the melt index
  • Polybutene maintains flexibility at low temperatures
  • Polybutene is fairly compatible with Ethylene Vinyl Acetate (EVA), Styrene-Butadiene-Styrene (SBS), Styrene-Isoprene-Styrene (SIS), Polyethylene (PE)

KEMAT Polybutenes

For adhesive applications, KEMAT Polybutenes:

  • give permanent tackiness
  • are safe for use in skin applications
  • are FDA approved for indirect food contact
  • will influence the cohesive strength, quick stick and peel strength
  • increase the water resistance
  • have the largest range of viscosities combining the POLYBUTTM and POLYBOLTM Polybutenes
  • are non-skin irritating
  • have a very narrow MW distribution for special applications
  • can be used in Pressure Sensitive Adhesives (PSA)
  • can be used in Hot Melt Adhesives (HMA)
  • can be used in Hot Melt Pressure Sensitive Adhesives (HMPSA)
  • are available in emulsion on demand to be used for water based PSAs

KEMAT has the whole range of MW.

KEMAT POLYBOLSTM (high MW PIB) are used in different adhesive formulations.