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


Applications
  • Commerical printing inks
  • Graphic arts
  • Gravure printing inks
  • Inkjet printing inks
  • Labels - food packaging - food contact
  • Overprint varnishes
  • Pack & carton coatings
  • Packaging inks food contact
  • Screen printing inks
  • Tape - food packaging - food contact

Product Description

Eastman Cellulose Acetate (CA-398-3, Food Contact) is one of the lower viscosity solution grades of cellulose acetate. The average ASTM viscosity of CA-398-3, Food Contact is 3 seconds. Eastman CA-398-3, Food Contact 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. It is used 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. When CA-398-3, Food Contact is dissolved in appropriate solvents a clear, colorless solution is produced.

Eastman CAB-398-3, Food Contact is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests.

This product is manufactured, stored, handled and transported by Eastman under conditions adhering to current Good Manufacturing Practices for food contact applications. This product meets requirements for use in certain food contact applications under regulations of the U.S. Food and Drug Administration (21 CFR), European Commission (Regulation 10/2011) and the Swiss Ordinance on Materials & Articles in Contact with Food (SR 817.023.21). Contact your Eastman representative or authorized Eastman distributor for specific regulatory compliance documentation.

For applications that do not require food contact compliance, please refer to Eastman CAB-398-3.



Typical Properties

PropertyTypical Value, Units
General
Viscositya3 s
 11.4 poise
Acetyl Content39.8 wt %
Hydroxyl Content3.5 wt %
Moisture Content3.0 max %
Glass Transition Temperature (Tg)180 °C
Melting range230-250 °C
Bulk Density 
     Poured320 kg/m3 (20 lb/ft3)
     Tapped400 kg/m3 (25 lb/ft3)
Specific Gravity1.31
Acidity 
     as Acetic Acid0.1 wt % max.
Ash Content0.05 %
Refractive Index1.475
Dielectric Strength669 kv/cm (1.7 kv/mil)
Tukon Hardness26 Knoops
Combined Acetic Acid Content55.5 %
Wt/Vol1.31 kg/L (10.9 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).



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.


8/8/2019 2:30:53 PM