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Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-553-0.4)


Applications
  • Auto OEM
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Paints & coatings

Product Description

Eastman cellulose acetate butyrate (CAB-553-0.4) is soluble in low molecular weight alcohols (methanol, ethanol, isopropanol, and n-propanol) as well as other common organic solvents. It has a high hydroxyl content (4.8 wt. %, average), which contributes to its alcohol solubility. The hydroxyl group is reactive and may be crosslinked with urea formaldehydes, melamines, and polyisocyantes. When CAB-553-0.4 is dissolved in appropriate solvents a clear, colorless solution is produced. Films of CAB-553-0.4 are colorless and have good ultraviolet stability, maintaining their low color over long periods of time. Eastman CAB-553-0.4 is supplied as a dry, free-flowing powder, offering formulation convenience, ease of handling and maximum formulating flexibility.

Eastman CAB-553-0.4 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 41% for Eastman CAB-553-0.4 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.

For applications that require food contact compliance, please refer to Eastman CAB-553-0.4, food contact.



Typical Properties

PropertyTypical Value, Units
General
Viscositya 
     s0.3
     Poise1.14
Acetyl Content2.0 wt %
Butyryl Content47 wt %
Hydroxyl Content4.8 wt %
Moisture Content3.0 max %
Tgb136 °C
Specific Gravity1.20
Tukon Hardness18 Knoops
Wt/Vol1.20 kg/L (10.00 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.

9/27/2024 1:52:44 PM