International. A new bio-based hardener for polyurethane (PU) coatings and adhesives has been developed to create a product, based on pentamethylene diisocyanate (PPDI), that reaches the high level of conventional, petrochemical-based isocyanates, and in some cases even exceeds it.
This development is postulated as a complement to polyols made with renewable raw materials, which are already being used in polyurethane coatings and adhesives. These coatings can thus now be formulated entirely from bio-based components.
The product created by Bayer MaterialScience has already won the innovation award "Bio-based Material of the Year 2015", awarded at the International Conference on Biobased Materials held in Cologne, Germany.
"Coatings and adhesive manufacturers and their customers can use the new hardener to improve their carbon credentials, significantly," said Dr. Berta Vega Sánchez, marketing manager of Bayer MaterialScience's Paints, Adhesives and Specialties Business Unit. "Users and manufacturers of branded products in various industries can use superior bio content to position themselves as pioneers in sustainable materials. This innovation is an excellent example of customer-oriented developments."
Image courtesy of Bayer MaterialScience.

