MOSCOW (MRC) -- Evonik's methacrylate experts have succeeded in developing a new generation of heat-sealing bead polymers, as per the company's press release.
The new product, DEGALAN VP P 34, reduces the complexity of coating formulation enormously because only a single binder is used and only one solvent is therefore necessary. The reason is that DEGALAN VP P 34 is a bead polymer that is easily soluble in ethyl acetate, a commonly used, highly volatile solvent for heat-sealing lacquer formulations.
DEGALAN VP P 34 based formulations can be applied directly on the aluminum foil so that primers or formulations with a PVC-based adhesion promoter, which are still necessary today, can now be dispensed with.
Methacrylate binders from Evonik, marketed as DEGALAN, offer unique possibilities for formulation of heat-sealing lacquers. They are used in the sealing of yoghurt containers and pharmaceutical blister packaging.
The requirements placed on packaging coatings are high because packaging substrates can vary widely. Yogurt lids, for example, consist of aluminum or plastic; these in turn must be sealed to a variety of container materials such as polypropylene (PP), polystyrene (PS) and polyethylene terephthalate (PET).
As MRC informed before, Evonik Industries is paving the way for a new technology whose applications include automotive finishes that are more scratch-resistant than ever before. The specialty chemicals company has developed an industrial-scale method for producing silane-modified binders for automotive finishes. The advantage of these silane-modified binders: silane groups increase crosslinking density, making it possible to create automotive finishes that are flexible yet harder, leading to improved scratch resistance.
Evonik, the creative industrial group from Germany, is one of the world leaders in specialty chemicals. Its activities focus on the key megatrends health, nutrition, resource efficiency and globalization. Evonik benefits specifically from its innovative prowess and integrated technology platforms. Evonik is active in over 100 countries around the world. In fiscal 2013 more than 33,500 employees generated sales of around EUR12.9 billion and an operating profit (adjusted EBITDA) of about EUR2.0 billion.
MRC