Click for PDF View TDS
Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-381-0.5), Food Contact


Applications
  • Commerical printing inks
  • Flexographic printing inks
  • Food can coatings internal
  • Graphic arts
  • Gravure printing inks
  • Inks
  • Labels - food packaging - food contact
  • Overprint varnishes
  • Pack & carton coatings
  • Packaging inks food contact
  • Screen printing inks
  • Tape - food packaging - food contact

Product Description

Eastman Cellulose Acetate Butyrate (CAB-381-0.5, Food Contact) is a cellulose ester with medium butyryl content and low viscosity. It was designed for use where low-application viscosities at relatively high solids levels is needed. It is soluble in a wide range of solvents and compatible with many other resins. When CAB-381-0.5, Food Contact is dissolved in appropriate solvents a clear, colorless solution is produced. It will also tolerate the use of solvent blends currently exempt from certain air pollution regulations. It is supplied as a dry, free-flowing powder.

Eastman CAB-381-0.5, Food Contact is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests. The calculated approximate bio-content value of 40% for Eastman CAB-381-0.5, Food Contact 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.

This product is manufactured, stored, handled and transported by Eastman under conditions adhering to current Good Manufacturing Practices for food contact applications. This product meets requirements for use in certain food contact applications under regulations of the U.S. Food and Drug Administration (21 CFR), European Commission (Regulation 10/2011) and the Swiss Ordinance on Materials & Articles in Contact with Food (SR 817.023.21). Contact your Eastman representative or authorized Eastman distributor for specific regulatory compliance documentation.

For applications that do not require food contact compliance, please refer to Eastman CAB 381-0.5.



Typical Properties

PropertyTypical Value, Units
General
Viscositya 
     s0.5
     Poise1.9
Acetyl Content13.5 wt %
Butyryl Content38 wt %
Hydroxyl Content1.5 wt %
Moisture Content3.0 max %
Tgb130 °C
Melting range155-165 °C
Bulk Density 
     Poured352 kg/m3 (22 lb/ft3)
     Tapped465 kg/m3 (39 lb/ft3)
Specific Gravity1.2
Acidity 
     as Acetic Acid0.03 wt %
Ash Content<0.05 %
Refractive Index1.48
Dielectric Strength787-984 kv/cm (2-2.5 kv/mil)
Tukon Hardness18 Knoops
Wt/Vol 
     (Cast Film)1.2 kg/L (10.0 lb/gal)
Heat Test 
     @ 160°C for 8 hrTan melt

aViscosity determined by ASTM Method D 1343. Results converted to poises (ASTM Method D 1343) using the solution density for Formula A as stated in ASTM Method D 817 (20% Cellulose ester, 72% acetone, 8% ethyl alcohol).
bGlass Transition Temperature



Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.


Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.


11/18/2019 6:53:46 AM