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Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-171-15)


Applications
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive protective coatings

Product Description
Eastman Cellulose Acetate Butyrate CAB 171-15 has the lowest butyryl content and the lowest degree of solubility in the series of Eastman cellulose esters product line. It is soluble in low molecular weight ketones, chlorinated hydrocarbons, and nitroparaffins. When CAB-171-15 is dissolved in appropriate solvents a clear, colorless solution is produced.

Coatings based on CAB 171-15, which has less solubility and compatibility than the higher butyryl CABs, usually offer excellent resistance to chemicals, oils, and greases.

It is supplied in dry, powder form.

Eastman CAB-171-15 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 46% for Eastman CAB 171-15 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 
     s19
     Poise57.37
Acetyl Content29 wt %
Butyryl Content18 wt %
Hydroxyl Content1.1 wt %
Moisture Content3.0 max %
Tgb161 °C
Bulk Density 
     Poured224 kg/m3 (14 lb/ft3)
     Tapped256 kg/m3 (16 lb/ft3)
Specific Gravity1.26
Acidity 
     as Acetic Acid0.0325 wt %
Ash Content0.05 %
Refractive Index1.475
Dielectric Strength784-984 kv/cm (2-2.5 kv/mil)
Tukon Hardness27 Knoops
Wt/Vol1.26 kg/L (10.5 lb/gal)

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.

8/24/2023 5:01:38 PM