Evonik Unveils Biobased Polyester Polyols for Reactive Hotmelt Adhesives
As the first company Evonik Industries launched a modular system of bio-based polyester polyols for reactive hotmelt adhesives, under the name DYNACOLL Terra. 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.
DYNACOLL with inherent flame retardancy
A further development in the field of hotmelts concerns the requirements with regards to fire protection. In the past, adhesives formulators were faced with the ch
本站所有信息與內容，版權歸原作者所有。網站中部分新聞、文章來源于網絡或會員供稿，如讀者對作品版權有疑議，請及時與我們聯系，電話：025-85303363 QQ：2402955403。文章僅代表作者本人的觀點，與本網站立場無關。轉載本站的內容，請務必注明"來源：林中祥膠粘劑技術信息網（www.www.proactivelibertylake.com）".
加載中...
