dcsimg Dispercoll® dispersions

Dispersions that stick

Dispercoll® dispersions for waterborne adhesives

There is growing demand for more environmentally friendly adhesive solutions for consumer and industrial applications. Covestro has responded with the development of its Dispercoll® range of waterborne dispersions for the formulation of high-performance adhesives.

Dispercoll® U dispersions are aqueous, anionic dispersions of high molecular weight aliphatic polyurethanes that do not contain co-solvents and offer performance comparable to solventborne polyurethanes. Key properties include:

  • Good resistance to discoloration
  • Water resistance
  • Excellent adhesion to plasticized PVC, other plastics and most substrates
  • Good heat resistance
  • Compatibility with many compounding ingredients

The performance of Dispercoll® U dispersions can be enhanced using Desmodur® or Bayhydur® water-dispersible polyisocyanate crosslinkers.

Dispercoll® C dispersions are aqueous polychloroprene lattices commonly used in the formulation of water-based-contact cements and foam-laminating adhesives. Adhesives based on Dispercoll® C dispersions exhibit long open tack times, high initial strength and high heat resistance. They can be used as substitutes for solventborne contact adhesives.

Dispercoll® S products are anionic colloidal solutions of amorphous silicon dioxide used with aqueous polymers, such as Dispercoll® C dispersions, to provide improvement of rheology properties (thickening). Aqueous polymers also increase the film modulus in adhesive applications. Compounded adhesives containing Dispercoll® S dispersions exhibit increased heat resistance and initial wet bond strength.

Dispercoll® dispersions are used for the formulation of adhesives designed for automotive, construction, furniturefootwear and packaging applications .

Brush and roller application

Title

Formulation Properties

Automotive

Furniture

Construction

Shoe

Matressess

Info

CRD 1001 Fast initial adhesion, very high viscosity, good storage stability, high film hardness and high heat resistance X X X infotooltipicon
CRD 1002 Fast initial adhesion, very high viscosity, good storage stability, very high film hardness and very high heat resistance X X X infotooltipicon
CRD 1003 Fast initial adhesion, high viscosity, good storage stability, medium film hardness X X X X infotooltipicon
CRD 1004 Fast initial adhesion, very high viscosity, good storage stability, very high film hardness X X X infotooltipicon
CRD 1005 Fast initial adhesion, very high viscosity, good storage stability, soft film hardness X X X X infotooltipicon
CRD 1006 Fast initial adhesion, medium viscosity, good storage stability, medium film hardness X X X X infotooltipicon
Spray application

Title

Formulation Properties

Automotive

Furniture

Construction

Shoe

Matressess

Info

CRD 2001 2K; Very fast initial wet strength, low viscosity and good storage stability X X X infotooltipicon
CRD 2010 1K; Fast initial wet strength, medium viscosity and good storage stability X X X infotooltipicon
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