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Eastman CAB-381-20BP, 100% Cellulose Acetate Butyrate
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Producer: 
Eastman
Eastman Cellulose Acetate Butyrate (CAB-381-20BP), 100% grade ester is a slight modification of the standard CAB-381-20 cellulose acetate butyrate and has a lower viscosity. The BP grade was designed primarily to meet the needs of European formulators. When CAB-381-20BP is dissolved in appropriate solvents a clear, colorless solution is produced.Eastman CAB-381-20BP is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests. The calculated approximate bio-content value of 41% for Eastman CAB-381-20BP was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit. Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.

Eastman CAB-381-20BP, 100% Cellulose Acetate Butyrate

Producer: 
Eastman
Eastman Cellulose Acetate Butyrate (CAB-381-20BP), 100% grade ester is a slight modification of the standard CAB-381-20 cellulose acetate butyrate and has a lower viscosity. The BP grade was designed primarily to meet the needs of European formulators. When CAB-381-20BP is dissolved in appropriate solvents a clear, colorless solution is produced.Eastman CAB-381-20BP is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests. The calculated approximate bio-content value of 41% for Eastman CAB-381-20BP was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit. Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.
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Identification & Functionality

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Features & Benefits

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Labeling Claims
CASE Ingredients Features

Applications & Uses

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Recommended Applications
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings
  • Commerical printing inks
  • Consumer electronics
  • Consumer housewares-NFC
  • General industrial coatings
  • Graphic arts
  • Industrial electronics
  • Industrial maintenance
  • Metal coatings
  • Non-medical housings & hardware for elec
  • Paints & coatings
  • Process additives
  • Protective coatings
  • Small appliances non-food contact
  • Truck/bus/RV
  • Wood coatings

Properties

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Compatible Substrates & Surfaces
Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Acetyl Content15.5wt %-
Acidity as Acetic Acidmax. 0.03wt %-
Ash Content0.05%-
Bulk Density Poured336 (21)kg/m3 (lb/ft3)-
Bulk Density Tapped432 (27)kg/m3 (lb/ft3)-
Butyryl Content35.5wt %-
Dielectric Strength787-984 (2-2.5)kv/cm (kv/mil)-
Glass Transition Temperature (Tg)128.0°C-
Heat Test at 160°C for 8 hrTan melt--
Hydroxyl Content0.8%-
Melting range185-195°C-
Moisture Contentmax. 3.0%-
Refractive Index1.475--
Specific Gravity1.2--
Tukon Hardness18.0Knoops-
Viscositya Poise20.8--
Viscositya s16.0--
Wt/Vol (Cast Film)1.2 (10.0)kg/L (lb/gal)-

Documents (3)

Name
Type
Cellulose Acetate Butyrate - CAB-381-20BP - 100% Sales Specifications Sheet
Other
TENITE Cellulosic Plastics - Secondary Fabrication Techniques
Brochure
Sustainability and biobased content of Eastman cellulose esters for formulated products
Brochure