Eastman

Product Forms

Tackifier resins can be supplied in various physical forms to meet specific logistic requirements:

Depending on the adhesive manufacturing process, a resin can be supplied in solid form in 50-lb (25 kg) sacks, big-bags (supersacks), drums, or in bulk molten form at higher temperatures.

Water-based resin dispersions are normally supplied as a liquid shipped in drums. Larger quantities are often packaged in plastic containers (semi-bulk) for convenience or shipped in bulk tank trucks containing up to 25m3.

 

Solid Tackifier Resin Storage and Inventory Control

  • Flaked and pastillated (pelletized) forms of resins may fuse, block, or lump under any of the following conditions:
    • In hot weather climates.
    • If stored near steam pipes or other sources of heat.
    • When stored for prolonged periods.
  • Inside storage is recommended.
  • Storage at temperatures above 30°C should be avoided.
  • Some resins are prone to gradual oxidation.
    This could result in darkening and/or it could have an adverse effect on the solubility of the resin in organic solvents or on its compatibility with polymers. It is recommended that strict inventory control be observed, taking care that the oldest material is used first.
  • The processing conditions or end use application of the resin cannot be anticipated. It is recommended that the material be tested upon receipt.

 

Molten Tackifier Resin Storage, Handling, and Inventory Control

  • While bulk molten handling of tackifier resins is often the most economical and efficient way to use these products, there are important safety and minimum volume requirements that restrict their use. For more information on handling bulk molten tackifier resins consult Eastman publication WA-64, Bulk Handling and Storage of Molten Eastotac Hydrocarbon Resins. While this publication is specific to the Eastotac line of hydrocarbon resins, many of the equipment descriptions, storage requirements, and safety concerns covered in this literature are applicable to molten bulk handling of any tackifier resin.
  • Since many adhesive manufacturing processes will include the use of tackifier resins in a molten state, even if supplied in solid form, it is prudent to review the hazards and safe handling practices for molten resins before using them in high temperature processes.

 

Resin Dispersion Storage and Inventory Control

  • Resin dispersions are not freeze-thaw stable and must be protected from freezing temperatures at all times. They should be shipped in heated containers whenever freezing temperatures are possible during transportation.
  • Resin dispersions have a limited shelf life and will begin to separate over time. Use strict inventory control techniques and use the oldest material first. Consult the product information data for particular products for shelf life recommendations.
  • Inside storage is recommended.
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