Click for PDF View TDS
Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-551-0.01), Food Contact


Chemical Synonym
  • Cellulose Acetate Butyrate
Applications
  • Can coating internal
  • Commerical printing inks
  • Flexographic printing inks
  • Graphic arts
  • Gravure printing inks
  • Inkjet printing inks
  • Metal coatings
  • Pack & carton coatings

Product Description
Eastman Cellulose Acetate Butyrate (CAB-551-0.01, Food Contact) has many unique attributes that will serve use across many different coating application areas. It has the lowest Tg (glass transition temperature) of the CAB portfolio. It also has the second lowest M(n), which helps its compatibility with other coatings components. It is compatible with numerous cross-linking resins and has a lower solution viscosity. In coatings, Eastman CAB-551-0.01 gives clear films, reduces surface tack and mottling, minimizes cratering, improves flow and thermal reflow, and provides inter coat adhesion and good UV stability. Its good compatibility with a wide range of curing resin systems and its solubility in a wide variety of solvents and solvent combinations make it useful as an additive in numerous coating compositions. Eastman cellulose esters are based on up to sixty percent cellulose, one of the most abundant natural renewable resources.

Typical Properties

PropertyTypical Value, Units
General
Butyryl Content53 wt %
Acetyl Content2 wt %
Hydroxyl Content1.5 %
Viscositya0.038 poise
Color100 ppm
Haze25 ppm
Acidity 
     as Acetic Acid0.02 wt %
Melting Point127-142 °C
Glass Transition Temperature (Tg)85 °C
Char Point260 °C
Wt/Vol 
     (Cast Film)1.16 kg/L (9.67 lb/gal)
Molecular Weightb 
     Mn16000
Tukon Hardness15 Knoops

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).
bPolystyrene equivalent number average molecular weight determined by gel permeation chromatography.



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.