product
Producer:
Eastman When cellulose is esterified with both acetyl and butyryl radicals to form the mixed ester, cellulose acetate butyrate, many of the desirable properties of both esters are obtained. Eastman™ Cellulose Acetate Butyrate CAB 171-15 National Formulary has the lowest butyryl content in the series of Eastman™ Cellulose Acetate Butyrates. It can be used as coating material as the semi-permeable membrane for osmotic drug delivery. It is also used for taste-masking and sustained release tableting. Eastman™ Cellulose Acetate Butyrate CAB-171-15 NF is made under cGMP and meets the requirements of the National Formulary (NF). Eastman™ Cellulose Acetate Butyrate CAB-171-15 NF is available in powder form.
Eastman CAB-171-15NF Cellulose Acetate Butyrate
Producer:
Eastman When cellulose is esterified with both acetyl and butyryl radicals to form the mixed ester, cellulose acetate butyrate, many of the desirable properties of both esters are obtained. Eastman™ Cellulose Acetate Butyrate CAB 171-15 National Formulary has the lowest butyryl content in the series of Eastman™ Cellulose Acetate Butyrates. It can be used as coating material as the semi-permeable membrane for osmotic drug delivery. It is also used for taste-masking and sustained release tableting. Eastman™ Cellulose Acetate Butyrate CAB-171-15 NF is made under cGMP and meets the requirements of the National Formulary (NF). Eastman™ Cellulose Acetate Butyrate CAB-171-15 NF is available in powder form.
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Features & Benefits
Product Highlights
- For use in coatings: semipermeable, excellent film former,strong, flexible.
- Characteristics of coating can be modified (permeability, mechanical strength, flexibility) through blending two CAs or CA with CAB.
- For use in tableting directly compressible, matrix for sustained release
- CAB is more hydrophobic than CA.
- Requires a solvent for coatings formulations
- Modify a wide range of film properties through additives
- Adjust sustained release by blending CA with CAB
- Requires a solvent for coatings formulations
- Modify a wide range of film properties through additives
- Adjust sustained release by blending CA with CAB
- Tablet formulated with CAB-171-15 NF exhibited a slower release rate compared to tablet formulated with CA-398-10 NF/EP.
Applications & Uses
Recommended Uses
- Personal care ingredients
- Semipermeable membrane for osmotic drug delivery
systems - Coating for extended-release tablets
- Coating for taste masking
- Binder to make tablets for sustained release via direct
compression
Properties
Physical Properties
| Value | Units | Test Method / Conditions | |
| Solubility in Water | Negligible |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Color | White | - | - |
| Solubility in Water | Negligible | - | - |
| Composition Acetyl | 28-31 | % | |
| Composition Butyryl | 16.5-19 | % | |
| Composition Hydroxyl | 0.8-1.4 | % | |
| Composition Moisture | max 5 | wt % | |
| Viscosity | 14-24 | Pa.s | ASTM A |
| Composition Hydroxyl | 0.8-1.4 | % | - |
| Composition Moisture | max. 5.0 | wt % | - |
| Composition Butyryl | 16.5-19 | % | - |
| Composition Acetyl | 28-31 | % | - |
| Viscosity | 14-24 | - | ASTM A |
Physical Form
Solid (powder)
Appearance
White
Insoluble in
Water
Packaging & Availability
Regional availability
Storage & Handling
Storage and Handling
- Eastman cellulose esters are packed and sealed in fiber drums equipped with a polyethylene inner liner and reusable metal closure.
- These containers should be sealed and protected from moisture or high humidity for extended periods.
- Drums held in cool, dry storage should be brought to room temperature before opening to prevent condensation of moisture on inside surfaces.
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