Polyurethane dispersions for waterborne
adhesives
High-molecular-weight polyurethanes
form the basis for the Dispercoll® U product range for aqueous
dispersions.
 Properties:
The Dispercoll® U grades differ in their heat activation temperature.
Their solids content is between 40 and 50 percent. Adhesives based
on Dispercoll® U can be optimized for the particular application
through appropriate formulation. The Dispercoll® U grades are
based exclusively on aliphatic raw materials, which are resistant
to yellowing.
Uses:
Dispercoll® U has proved useful in applications where high forces
and stresses occur and where high initial strength is therefore
specified. Furthermore, Dispercoll U is suitable for the production
of bonds with high flexibility and resistance to plasticizers and
grease. A typical area of application in the furniture segment is
the lamination of MDF (medium-density fiberboard) board with decorative
film for kitchen fronts by the so-called 3D membrane-press technology.
Polyurethane Dispersion
Literature:
Click
here to access our library of technical papers about polyurethane
dispersions and other adhesive and specialty chemistries.
Click
here to view our Dispercoll U product brochure.
Advantages:
- Outstanding adhesion to numerous synthetic materials (e.g. highly
plasticized PVC)
- Environmental friendliness
- Resistance to moisture and water
- High heat resistance when use is made of an emulsifiable crosslinking
isocyanate
- Freedom from discoloration
- Good compatibility with the most common types of polymer dispersions
Contact us and our technical
experts will be pleased to give detailed advice on specific applications
and on the formulation of adhesives based on Dispercoll® U.
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