François Vettier

Technical Manager Crayvallac Additives, Arkema Research Center

Arkema Coating Resins


François Vettier obtained a chemical engineering degree with a specialisation in polymer materials at the ENSC of Montpellier (France) in 2006. He also graduated from the IFP-School in petrochemical and polymer processing technologies. This engineering degree was obtained in partnership with Cray Valley whilst working as a chemist in its additives laboratory.

He has worked for four years as Application Laboratory Manager for Crayvallac Additives (now part of Arkema) and also had some responsibilities offering technical assistance for this business and in support of  the European distributors. For the last three years, he has been specifically supporting customers of Crayvallac additives for adhesives and sealants.

Presentation Abstract

Enhanced rheological properties using polyamide additives in high-tack adhesives based on silyl-terminated polymers

Polyamide additive technology has become a market reference in order to achieve the required rheological properties in many systems, including adhesives and sealants.

In parallel, silyl-terminated-polymer technology is increasing its market share, with high growth rates in many sectors such as construction and transportation. Additionally, needs for high-tack systems are increasing, as adhesives replace mechanical fasteners and, more generally, to enhance the end properties in application areas when specifically needed.

For these applications, polyamide additives represent a tool of prime interest to achieve a suitable rheological profile with a good compromise between high early grab and enhanced workability.

A brief introduction of the polyamide technology, in terms of chemistry and physical properties, will be shared. The paper will then focus on practical examples adapted to STP based high-tack formulations, showing different methods of characterisation and the performance of various additives regarding these properties.

Finally, the performance of a newly developed polyamide product will be examined, highlighting the differentiation it brings to formulators.

Presentation Time

Breakout V: New additives for reactive adhesives and sealants

Thursday, 12 September 2019, 16:00 - 16:30

FEICA Conference