Eastman™ Cellulose Acetate Butyrate (CAB-500-5)

Application/Uses

- Automotive OEM
- Coatings
- Coatings for Automotive Plastics
- Coatings for plastic
- Inks
- Lacquers
- Lacquers for automotive
- Lacquers for leather
- Lacquers for paper
- Lacquers for plastic
- Printing Inks

Product Description

Remarkable polymers with a renewable backbone provided by nature itself.

Eastman™ Cellulose Acetate Butyrate (CAB-500-5) is a cellulose ester with high butyryl content, low hydroxyl content and medium ASTM(A) viscosity. CAB-500-5 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

Property	Typical Value, Units
Butyryl Content	51 wt %
Acetyl Content	4 wt %
Hydroxyl Content	1%
Viscosity *a	19 poise
Color *b	125 ppm
Haze *b	25 ppm
Acidityas Acetic Acid	0.03 wt %
Ash Content	0.05%
Refractive Index	1.475
Heat Test@ 160°C for 8 hr	Tan melt
Melting Point	165-175°C
Specific Gravity	1.18
Wt/Vol(Cast Film)	1.18 kg/L (9.83 lb/gal)
Bulk Density Poured Tapped	400 kg/m3(25 lb/ft3) 512 kg/m3(32 lb/ft3)
Dielectric Strength	787-984 kv/cm (2-2.5 kv/mil)
Glass Transition Temperature (Tg)	96°C
Molecular Weight cMn	57000
Tukon Hardness	14 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 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.
*c Polystyrene 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.