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Eastman CAB-381-0.5
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Producer: 
Eastman
Eastman Cellulose Acetate Butyrate (CAB-381-0.5) is a cellulose ester with medium butyryl content and low viscosity. It was designed for use where low-application viscosities at relatively high solids levels is needed. It is soluble in a wide range of solvents and compatible with many other resins. When CAB-381-0.5 is dissolved in appropriate solvents a clear, colorless solution is produced. It will also tolerate the use of solvent blends currently exempt from certain air pollution regulations. It is supplied as a dry, free-flowing powder.Eastman CAB-381-0.5 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 40% for Eastman CAB-381-0.5 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.For applications that require food contact compliance, please refer to CAB-381-0.5, Food Contact.

Eastman CAB-381-0.5

Producer: 
Eastman
Eastman Cellulose Acetate Butyrate (CAB-381-0.5) is a cellulose ester with medium butyryl content and low viscosity. It was designed for use where low-application viscosities at relatively high solids levels is needed. It is soluble in a wide range of solvents and compatible with many other resins. When CAB-381-0.5 is dissolved in appropriate solvents a clear, colorless solution is produced. It will also tolerate the use of solvent blends currently exempt from certain air pollution regulations. It is supplied as a dry, free-flowing powder.Eastman CAB-381-0.5 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 40% for Eastman CAB-381-0.5 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.For applications that require food contact compliance, please refer to CAB-381-0.5, Food Contact.
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Applications & Uses

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Recommended Applications
  • Aerosol coatings
  • Aerospace coatings
  • Apparel
  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings
  • Coil coatings
  • Coil coatings-appliances
  • Commerical printing inks
  • Compensation film
  • Consumer electronics
  • Exterior architectural coatings
  • Flexographic printing inks
  • General industrial coatings
  • Graphic arts
  • Gravure printing inks
  • Industrial electronics
  • Industrial maintenance
  • Inks
  • Leather coatings
  • Metal coatings
  • Metal furniture
  • Metals
  • Motorcycles
  • Non-medical housings & hardware for elec
  • Overprint varnishes
  • Pack & carton coatings
  • Packaging coatings non food contact
  • Packaging inks non food contact
  • Paints & coatings
  • Personal care ingredients
  • Photographic chemicals
  • Polymer modification
  • Process additives
  • Protective coatings
  • Screen printing inks
  • Shrink film non food contact
  • Small appliances non-food contact
  • Tools
  • Truck/bus/RV
  • Wood coatings
Recommended Uses
  • Aerosol coatings
  • Aerospace coatings
  • Apparel
  • Architectural coatings
  • Auto oem
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive parts & accessories
  • Automotive protective coatings
  • Coil coatings
  • Coil coatings-appliances
  • Commerical printing inks
  • Compensation film
  • Consumer electronics
  • Exterior architectural coatings
  • Flexographic printing inks
  • General industrial coatings
  • Graphic arts
  • Gravure printing inks
  • Industrial electronics
  • Industrial maintenance
  • Inks
  • Leather coatings
  • Metal coatings
  • Metal furniture
  • Metals
  • Motorcycles
  • Non-medical housings & hardware for elec
  • Overprint varnishes
  • Pack & carton coatings
  • Packaging coatings non food contact
  • Packaging inks non food contact
  • Paints & coatings
  • Personal care ingredients
  • Photographic chemicals
  • Polymer modification
  • Process additives
  • Protective coatings
  • Screen printing inks
  • Shrink film non food contact
  • Small appliances non-food contact
  • Tools
  • Truck/bus/rv
  • Wood coatings

Properties

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Compatible Substrates & Surfaces
Typical Properties
ValueUnitsTest Method / Conditions
Acetyl Content13.5wt %-
Acidity as Acetic Acid0.03wt %-
Ash Contentmax. 0.05%-
Bulk Density Poured352 (22)kg/m3 (lb/ft3)-
Bulk Density Tapped465 (39)kg/m3 (lb/ft3)-
Butyryl Content38.0wt %-
Dielectric Strength787-984 (2-2.5)kv/cm (kv/mil)-
Glass Transition Temperature (Tg)130.0°C-
Heat Test at 160°C for 8 hrTan melt--
Hydroxyl Content1.5wt %-
Melting range155-165°C-
Moisture Contentmax. 3.0%-
Refractive Index1.48--
Specific Gravity1.2--
Tukon Hardness18.0Knoops-
Viscositya Poise1.9--
Viscositya s0.5--
Wt/Vol (Cast Film)1.2 (10.0)kg/L (lb/gal)-
Appearance
Free flowing powder
Specific Gravity
1.2
Refractive Index
1.48
Melting Point
155-165°C
Viscosity
1.9 poise
Molecular Weight
30000
Glass Transition Temperature Tg
130°C
Acidity
0.03%wt

Documents (17)

Name
Type
Cellulose Acetate Butyrate - CAB-381-0.5 Sales Specifications Sheet
Other
TENITE Cellulosic Plastics - Secondary Fabrication Techniques
Brochure
Sustainability and biobased content of Eastman cellulose esters for formulated products
Brochure
Selecting Effective Xylene Replacements for Protective Coatings
Brochure
Pigmentation of Eastman cellulose esters for use in printing inks
Brochure