product
Producer:
Eastman Eastman Cellulose Acetate Butyrate CAB-381-2 is a cellulose ester with medium butyryl content and high viscosity. Other than a higher viscosity and molecular weight, this cellulose ester shares the same general characteristics as CAB-381-0.1 and CAB-381-0.5. CAB-381-2 offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness, and good film strength. When CAB-381-2 is dissolved in appropriate solvents, a clear, colorless solution is produced. It is supplied as a dry, free-flowing powder.Eastman CAB-381-2 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 40% for Eastman CAB-381-2 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 Eastman CAB-381-2, Food Contact.
Eastman CAB-381-2
Producer:
Eastman Eastman Cellulose Acetate Butyrate CAB-381-2 is a cellulose ester with medium butyryl content and high viscosity. Other than a higher viscosity and molecular weight, this cellulose ester shares the same general characteristics as CAB-381-0.1 and CAB-381-0.5. CAB-381-2 offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness, and good film strength. When CAB-381-2 is dissolved in appropriate solvents, a clear, colorless solution is produced. It is supplied as a dry, free-flowing powder.Eastman CAB-381-2 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 40% for Eastman CAB-381-2 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 Eastman CAB-381-2, Food Contact.
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Recommended Applications
- Ace machinery & equipment
- Adhesives/sealants-B&C
- Aerosol coatings
- Aerospace coatings
- Architectural coatings
- Auto OEM
- Auto plastics
- Auto refinish
- Automotive parts & accessories
- Automotive protective coatings
- Coil coatings
- Coil coatings-appliances
- Commerical printing inks
- Consumer electronics
- Electronic chemicals
- Exterior architectural coatings
- General industrial coatings
- Graphic arts
- Gravure printing inks
- Industrial electronics
- Industrial maintenance
- Inkjet printing inks
- Leather coatings
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- Motorcycles
- Non-medical housings & hardware for elec
- Other-transportation
- Overprint varnishes
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- Process additives
- Process solvents
- Protective coatings
- Safety glasses/shield
- Small appliances non-food contact
- Truck/bus/RV
- Water treatment industrial
- Wood coatings
Properties
Typical Properties
Value | Units | Test Method / Conditions | |
Acetyl Content | 13.5 | wt % | - |
Acidity as Acetic Acid | max. 0.03 | wt % | - |
Ash Content | 0.05 | % | - |
Bulk Density Poured | 352 (22) | kg/m3 (lb/ft3) | - |
Bulk Density Tapped | 465 (29) | kg/m3 (lb/ft3) | - |
Butyryl Content | 38.0 | wt % | - |
Dielectric Strength | 787-984 (2-2.5) | kv/cm (kv/mil) | - |
Glass Transition Temperature (Tg) | 130.0 | °C | - |
Heat Test at 160°C for 8 hr | Tan melt | - | - |
Hydroxyl Content | 1.3 | wt % | - |
Melting range | 171-184 | °C | - |
Moisture Content | max. 3.0 | % | - |
Refractive Index | 1.475 | - | - |
Specific Gravity | 1.2 | - | - |
Tukon Hardness | 18.0 | Knoops | - |
Viscositya Poise | 8.0 | - | - |
Viscositya s | 2.0 | - | - |
Wt/Vol (Cast Film) | 1.2 (10.0) | kg/L (lb/gal) | - |
Appearance
Free flowing powder
Specific Gravity
1.2
Viscosity
7.6poise
Molecular Weight
40000
Refractive Index
1.475
Glass Transition Temperature Tg
133 C
Melting Point
171-184 C
Acidity
<0.03%wt
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Documents (9)
Name
Type
Sustainability and biobased content of Eastman cellulose esters for formulated products
Brochure
Introduction: Eastman cellulose esters provide a uniform appearance to case acrylic sheets for bathtubs, show enclosures, and spas
Brochure
Introduction: Eastman cellulose esters for general industrial, industrial maintenance and marine coatings
Brochure