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Polychloroprenes for solventborne adhesives
Under the product name Baypren®, Bayer markets a polychloroprene
(poly-2-chlorobutadiene-1,3), produced by a state-of-the-art process.
Properties: The Baypren® grades differ with regard
to their crystallization rate and solution viscosity. The 200 range
has a medium crystallization rate and the 300 range a fast  crystallization
rate. As far as the solution viscosity is concerned, we offer Baypren®
grades with viscosities between 10 and 120 mPas. Apart from their
viscous properties, polychloroprene solutions also have elastic properties.
In addition, the product range includes Baypren® grades both with
and without thiuram. Adhesives based on Baypren® are noted for
their long open time and the high initial strength of the bonds.
Uses: Baypren has proved itself in the production of adhesives
for the automotive industry in applications in which high stresses
are exerted on the bond and/or the bonded objects are subjected
to further processing very quickly. In combination with the adhesion-improving
Desmodur®
products, Baypren can also be used for formulating adhesives for
rubber materials that are otherwise difficult to bond. We recommend
thiuram-free Baypren® grades for bond sensitive, light-colored
materials.
Advantages:
- Very high initial strength
- High dissolving speed
- Very fast curing
Contact us and our technical
experts will be pleased to give detailed advice on specific applications
of Bayer products in the transportation industry.
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