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Technical Data Sheet
Eastman™ Cellulose Acetate (CA-398-3)


Applications
  • HTF - pharmaceutical processing
  • Adhesives/sealants-B&C
  • Architectural coatings
  • Auto OEM
  • Auto refinish
  • Automotive
  • Compounders
  • Consumer electronics
  • Consumer housewares-NFC
  • Device housings
  • Electronic chemicals
  • Electronics
  • General industrial coatings
  • Graphic arts
  • Gravure printing inks
  • Industrial maintenance
  • Inkjet printing inks
  • Metal coatings
  • Multi-layer film non food contact
  • Other-LCD displays
  • Pack & carton coatings
  • Packaging coatings non food contact
  • Packaging inks non food contact
  • Packaging tape
  • Paints & coatings
  • Paper coatings non-food grade
  • Photographic chemicals
  • Process additives
  • Protective coatings
  • Strapping
  • Tac film
  • Water treatment industrial
  • Wire/cable
  • Wood coatings

Product Description
Eastman Cellulose Acetate (CA-398-3) is one of the lower viscosity solution grades of cellulose acetate. The average ASTM viscosity of CA-398-3 is 3 seconds. Eastman Cellulose Acetate (CA-398-3) is supplied in the form of a fine, dry, free-flowing powder. This multipurpose rheology enhancer, provides high strength and good resistance to ultraviolet light, heat, oils and greases. Useful in lacquers for glass, plastic, wire and release coatings. It may be blended with appropriate solvents, plasticizers, and other modifying resins to formulate coatings for paper, glass, plastic, wire screen, and electrical wiring. Food additive regulations issued by the Food and Drug Administration (FDA) permit use of cellulose acetate in specific food packaging applications. Cellulose acetate is also prior sanctioned for use in film in food-contact applications. CA is also recognized by the FDA as generally recognized as safe (GRAS) for use in paper and paperboard in contact with food.

Typical Properties

PropertyTypical Value, Units
General
Acetyl Content39.8 wt %
Combined Acetic Acid Content55.5 %
Hydroxyl Content3.5 wt %
Viscosityc11.4 poise
Colorb80 ppm
Hazeb25 ppm
Ash Content0.05 %
Acidity 
     as Acetic Acid0.1 wt % max.
Refractive Index1.475
Melting Point230-250 °C
Specific Gravity1.31
Wt/Vol1.31 kg/L (10.9 lb/gal)
Bulk Density 
     Poured320 kg/m3 (20 lb/ft3)
     Tapped400 kg/m3 (25 lb/ft3)
Dielectric Strength669 kv/cm (1.7 kv/mil)
Glass Transition Temperature (Tg)180 °C
Tukon Hardness26 Knoops

bDetermination of color and haze made on CAB solution using Pt-Co standard (color) and a monodisperse latex suspension (haze). Analysis is performed with a Gardner Model XL-835 Colorimeter.
cViscosity 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.