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Waterborne adhesive resins for demanding footwear applications

Sustainable performance

Waterborne adhesive resins for demanding footwear applications

Covestro has led the development of alternative waterborne adhesive raw materials that are sustainable and provide the high-performance footwear manufacturers have come to expect.

Footwear - Waterborne
Sustainable and durable raw materials for the footwear industry

To meet the growing demand for environmentally friendly adhesive systems, we have developed a range of waterborne resin dispersions. Their property profiles match or exceed those of traditional, solvent-based systems.

Dispercoll® U polyurethane and Dispercoll® C polychloroprene dispersions are ideal for heat-activated footwear adhesives because they:

  • Exhibit excellent initial strength, even if applied we-on-wet
  • Rapidly increase in strength
  • Are highly fillable
  • Have  high solid content
  • Can be formulated to high softening points without isocyanates
  • Demonstrate good resistance to humidity, oil and chemicals

The mechanical and weathering resistance of adhesives based on Dispercoll® U polyurethanes is further improved with the addition of Desmodur® isocyanate crosslinkers. The combination is ideal for sole-bonding applications. The properties of these systems are also fine-tuned to meet specific processing or performance requirements.

One -component (1K) formulations developed from Dispercoll® U polyurethanes can meet requirements of process simplicity and flexibility at a 2K performance level.

1K latent-reactive systems based on Dispercoll® U polyurethanes and deactivated solid isocyanates are used as dispersions, precoatings or reactive adhesive films.

The tackiness, hardness, durability and temperature resistance of adhesives based on Dispercoll® C dispersions are adjusted by combining different product grades.

Polychloroprene dispersions are formulated as 2K systems with Desmodur® isocyanate crosslinkers for further property enhancement.
 

 
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