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Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-381-0.5)


Applications
  • Aerosol coatings
  • Aerospace coatings
  • Apparel
  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings
  • Coil coatings
  • Coil coatings-appliances
  • Commerical printing inks
  • Compensation film
  • Consumer electronics
  • Exterior architectural coatings
  • Flexographic printing inks
  • General industrial coatings
  • Graphic arts
  • Gravure printing inks
  • Industrial electronics
  • Industrial maintenance
  • Inks
  • Leather coatings
  • Metal coatings
  • Metal furniture
  • Metals
  • Motorcycles
  • Non-medical housings & hardware for elec
  • Overprint varnishes
  • Pack & carton coatings
  • Packaging coatings non food contact
  • Packaging inks non food contact
  • Paints & coatings
  • Personal care ingredients
  • Photographic chemicals
  • Polymer modification
  • Process additives
  • Protective coatings
  • Screen printing inks
  • Shrink film non food contact
  • Small appliances non-food contact
  • Tools
  • Truck/bus/RV
  • Wood coatings

Product Description

Eastman Cellulose Acetate Butyrate (CAB-381-0.5) 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 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 is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests.

For applications that require food contact compliance, please refer to CAB-381-0.5, Food Contact.



Typical Properties

PropertyTypical Value, Units
General
Viscositya0.5 s
 1.9 poise
Acetyl Content13.5 wt %
Butyryl Content38 wt %
Hydroxyl Content1.5 %
Moisture Content3.0 max %
Glass Transition Temperature (Tg)130 °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).



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.


8/8/2019 2:33:51 PM