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Technical Data Sheet


Applications
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings

Product Description

Eastman Cellulose Acetate Butyrate (CAB-500-5) is a cellulose ester with high butyryl content, low hydroxyl content and medium ASTM(A) viscosity. It offers a wide range of solubility and compatibility. It is tolerant of nonpolar aliphatic and aromatic hydrocarbons. It produces a relatively soft, flexible film requiring little or no plasticizer in many applications. When CAB-500-5 is dissolved in appropriate solvents a clear, colorless solution is produced. Eastman CAB-500-5 is supplied as a dry, white free-flowing powder and is convenient to handle.

Eastman CAP-500-5 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 37% for Eastman CAB-500-5 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.



Typical Properties

PropertyTypical Value, Units
General
Viscositya 
     s5
     Poise19
Acetyl Content3 wt %
Butyryl Content51 wt %
Hydroxyl Content1 wt %
Moisture Content3.0 max %
Tgb96 °C
Bulk Density 
     Poured400 kg/m3 (25 lb/ft3)
     Tapped512 kg/m3 (32 lb/ft3)
Specific Gravity1.18
Acidity 
     as Acetic Acid0.03 wt %
Ash Content0.05 %
Refractive Index1.475
Dielectric Strength787-984 kv/cm (2-2.5 kv/mil)
Tukon Hardness14 Knoops
Wt/Vol 
     (Cast Film)1.18 kg/L (9.83 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.


12/5/2023 11:47:15 AM