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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 crystallizing
rate, heat activating temperature and initial strength. The solids
contents are between 40 and 50 percent. Adhesives based on Dispercoll®
U can be optimized for the particular application through the formulation.
The Dispercoll® U grades are based exclusively on aliphatic isocyanates,
which are resistant to yellowing. This property makes these products
suitable for bonding light-colored shoe materials.
Uses:
Dispercoll® U is useful wherever fairly high forces and stresses
occur and therefore high initial strength is needed, and where resistance
to grease and plasticizers, freedom from discoloration or a flexible
bond is specified. A common application is the bonding of soles
in the footwear industry.
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:
- Good compatibility to a number of other polymer dispersions
- Outstanding adhesion to numerous synthetic materials (e.g. highly
plasticized PVC)
- Environmental friendliness
- Resistance to moisture and water
- Resistance to discoloration
Contact us and our technical
experts will be pleased to give detailed advice on specific applications
of Bayer products in the footwear industry.
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Dispercoll
U 42
