<P>Eastman Cellulose Acetate Butyrate (CAB-381-20) is a cellulose ester with medium butyryl content and high ASTM(A) viscosity. Other than a higher viscosity and higher molecular weight, this cellulose ester shares the same general characteristics as CAB-381-0.1 and CAB-381-0.5. CAB-381-20 offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness and good film strength. When CAB-381-20 is dissolved in appropriate solvents a clear, colorless solution is produced. CAB-381-20 is supplied as a dry, free-flowing powder.</P><P>Eastman CAB-381-20 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 41% for Eastman CAB-381-20 was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit. Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.</P><P> For applications that require food contact compliance, please refer to Eastman CAB-381-20, Food Contact.</P>
If you are interested in learning more about product availability in your area, please complete the “Make an inquiry” form on this page.
If applicable, authorized distributors are in the regions listed below, with more details provided in the “Authorized distributors” section.
Europe, Middle East & Africa
Please select a region and country for a list of authorized distributors. If a country is not listed for a region, contact Eastman for further information.