Eastman™ Cellulose Acetate (CA-398-3)

Application/Uses

- Coatings
- Coatings for glass
- Coatings for paper/paperboard
- Consumer electronics
- Electrical
- Food packaging
- Food-contact applications
- Pressure sensitive tape
- Wood sealers

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. 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

Property	Typical Value, Units
Acetyl Content	39.8 wt %
Combined Acetic Acid Content	55.5%
Hydroxyl Content	3.5 wt %
Viscosity *a	11.4 poise
Color *b	80 ppm
Haze *b	25 ppm
Ash Content	0.05%
Acidityas Acetic Acid	0.1 wt % max.
Refractive Index	1.475
Melting Point	230-250°C
Specific Gravity	1.31
Wt/Vol	1.31 kg/L (10.9 lb/gal)
Bulk Density Tapped Poured	400 kg/m3(25 lb/ft3) 320 kg/m3(20 lb/ft3)
Dielectric Strength	669 kv/cm (1.7 kv/mil)
Glass Transition Temperature (Tg)	180°C
Tukon Hardness	26 Knoops

*a Viscosity 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).
*b Determination 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.

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.