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Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-381-2 BP)


Applications
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Coil coatings-appliances
  • Commerical printing inks
  • Consumer electronics
  • Graphic arts
  • Gravure printing inks
  • Motorcycles
  • Non-medical housings & hardware for elec
  • Truck/bus/RV
  • Wood coatings

Product Description
Eastman Cellulose Acetate Butyrate(CAB-381-2BP) grade ester is a slight modification of the standard CAB-381-2 cellulose acetate butyrate and has a higher hydroxyl and acetyl content and lower butyryl content. The BP grade was designed primarily to meet the needs of European formulators. When dissolved in appropriate solvents selected for CAB-381-2BP, a clear, colorless solution is produced.

Typical Properties

PropertyTypical Value, Units
General
Viscositya2 s
 8 poise
Acetyl Content14.5 wt %
Butyryl Content35.5 wt %
Hydroxyl Content1.7 %
Moisture Content3.0 max %
Glass Transition Temperature (Tg)133 °C
Melting range175-185 °C
Bulk Density 
     Poured416 kg/m3 (26 lb/ft3)
     Tapped480 kg/m3 (30 lb/ft3)
Specific Gravity1.2
Acidity 
     as Acetic Acid<0.03 wt %
Ash Content0.05 %
Refractive Index1.475
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.


7/2/2019 9:59:51 AM