MOSCOW (MRC) -- As the first company Evonik Industries launched a modular system of bio-based polyester polyols for reactive hotmelt adhesives, under the name DYNACOLL Terra, said the producer on its site.
These are the "green" alternatives to the petrochemical polyols, and also expand the property spectrum of the existing product range.
The DYNACOLL Terra range includes nine medium-molecular-weight polyester polyols in which the content of renewable raw materials ranges from more than 30 to 100 percent. As in the case of the petrochemical based grades, this is a modular system consisting of amorphous, liquid, and crystalline grades; their spectrum of viscosities, melting points, and glass transition temperatures determine to a large extent the properties of the formulated PUR hotmelts such as open time, initial strength, and setting time. The bio-based formulations allow the production of reactive hotmelts with properties comparable to those of petrochemically based polyesters; in some cases the products can be even better.
In developing DYNACOLL Terra, Evonik is underscoring its commitment to corporate responsibility and accelerating the trend in the chemical industry toward a greener future.
As MRC informed previously, 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