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Latent-reactive adhesives for precoating of metal parts

SpecialChem / Sep 26, 2006

Innovative raw materials developed by Bayer MaterialScience AG make possible the formulation of thermoactivated adhesives for an extended range of applications - and they also join metal and plastic better than ever before thanks to a waterborne dispersion layer. Using a new latent-reactive precoating for metals or other substrates, the Coatings, Adhesives, Sealants Business Unit (CAS) of Bayer MaterialScience has succeeded for the first time in creating a force transmitting adhesive bond to plastic melts. The company achieved the decisive breakthrough via the modified use of thermoactivated adhesives formulated with its own Dispercoll® U line of products. This method will allow such disparate materials as metal and plastic to be more effectively bonded in the future, and also offers numerous other advantages over conventional joining methods. Hybrid components of coated or uncoated metal and thermoplastics, for example, previously could only be manufactured by means of a positive connection between the components brought about by an injection molding process

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