Multifunctional Silane Systems^TM - the Next-Generation Coupling Agents Is Called Dynasylan^® SIVO

Besides strong reinforcement capability, the requirements of advanced silane coupling agents also cover environmental aspects and cost/performance relationship. The focus for new vinylsilanes has to be on the silicon functional part responsible for the unwanted emission of VOCs.

The development of consistently application-oriented products can only occur through systematic and close cooperation with our customers. In order to guarantee this, Evonik has a highly competent group of researchers and application scientists who have dedicated themselves to the development of new Dynasylan^® systems: Dynasylan^® SIVO products. The product line Dynasylan^® SIVO represents a close collaboration between manufacturer and user, maximum concentration on the problems in practice and highly accelerated development cycles, sometimes of only 6 months.

This means that relevant competitive advantages can be quickly realized:

• Better performance in special application areas for products
• Higher productivity, better handling or increased storage capability of the adhesives and sealants
• Reduced toxicity, better environmental compatibility in their production and in processing at the customer‘s
• Use of less monofunctional silanes to ensure minimal complexity and reduced storage

As an Example:

Through oligomerization, a reduction of 57% of the potential emission of VOCs is obtained with Dynasylan^® 6498, compared to Dynasylan^® VTEO, the respective monomeric vinylsilane. Fewer ethoxy groups per vinyl unit in Dynasylan^® 6498 also results in a reduced molecular weight per vinyl unit. Thus, for reaching the same level of reinforcement, only a lower amount of Dynasylan^® 6498 is necessary, comparedn to monomeric vinylsilanes like Dynasylan^® VTEO or Dynasylan^® VTMOEO.