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Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-500-5)


Applications
  • Apparel
  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings
  • Commerical printing inks
  • Compensation film
  • Consumer electronics
  • Device housings
  • Formulators
  • General industrial coatings
  • Graphic arts
  • Inkjet printing inks
  • Inks
  • Leather coatings
  • Medical - non-mg approved
  • Metal coatings
  • Packaging coatings non food contact
  • Packaging inks non food contact
  • Paints & coatings
  • Photographic imaging film
  • Process additives
  • Process solvents
  • Protective coatings
  • Specialty tape
  • Water treatment industrial
  • Wood coatings

Product Description
Eastman Cellulose Acetate Butyrate (CAB-500-5) is a cellulose ester with high butyryl content, low hydroxyl content and medium ASTM(A) viscosity. It offers a wide range of solubility and compatibility. It is tolerant of nonpolar aliphatic and aromatic hydrocarbons. It produces a relatively soft, flexible film requiring little or no plasticizer in many applications. Eastman CAB-500-5 is supplied as a dry, white free-flowing powder convenient to handle. 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 Content51 wt %
Acetyl Content4 wt %
Hydroxyl Content1 %
Viscosityc19 poise
Colora125 ppm
Hazea25 ppm
Acidity 
     as Acetic Acid0.03 wt %
Ash Content0.05 %
Refractive Index1.475
Heat Test 
     @ 160°C for 8 hrTan melt
Melting Point165-175 °C
Specific Gravity1.18
Wt/Vol 
     (Cast Film)1.18 kg/L (9.83 lb/gal)
Bulk Density 
     Poured400 kg/m3 (25 lb/ft3)
     Tapped512 kg/m3 (32 lb/ft3)
Dielectric Strength787-984 kv/cm (2-2.5 kv/mil)
Glass Transition Temperature (Tg)96 °C
Molecular Weightb 
     Mn57000
Tukon Hardness14 Knoops

aDetermination of color made on a solution of the ester dissolved in MIBK using Pt-Co color standards. Haze is based on scattered light from a monodispersed polystyrene latex suspension haze standard.
bPolystyrene equivalent number average molecular weight determined by gel permeation chromatography.
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.