Breaking constraints: new generation of liquid resins to meet regulatory challenges

 
Liquid hydrocarbon resins are widely used in heavy corrosion protective coatings. They improve flexibility, contribute to the high resistance against chemicals and water, support the substrate adhesion and optimize the reaction speed. To cooperate with the high polar binders in coatings, most of conventional liquid hydrocarbon resins are low molecular phenolic compounds. Since years, this class of chemicals is under examination of REACH/ECHA and some of them are suspected to be endocrine disruptive, bio accumulative or persistent potentials in analog to nonyl phenol. The listing of reactive mass of alpha methyl styrene and phenol as SHVS candidate early 2024 is the consequent and considered as a starting point of the upcoming further regulatory actions. We have successfully developed a series of new generation liquid resin as replacement. The new product series offer similar application profile to the traditional products but are polymer-based and safeguard a long-term perspective regarding labelling and REACH constraints. In this presentation we will explain the background of the developments, introduce the application performance and highlight the new approach to break the regulatory constraints.