Product information
Product name: Cellulose Acetate Butyrate (CAB)
CAS: 9004‑36‑8
Synonym: Acetobutyrate Cellulose；CAB
EINECS: 618‑381‑2
Appearance: White free‑flowing powder / granule, odorless
Polymer type: Thermoplastic cellulose mixed ester
Physicochemical Properties
Density 1.25 g/cm³ @25℃
Melting range 127‑205 ℃ (grade‑dependent)
Solubility Insoluble in water; soluble in ketones, esters, mixed alcohol‑chlorinated solventsCharacteristic Good UV‑resistance, flexibility, leveling property, compatible with many resins & plasticizers
Quality Specification (General Coating Grade)
| Test Item | Specification |
|---|---|
| Butyryl content | 36.0‑40.0 % |
| Acetyl content | 12.0‑15.0 % |
| Free acidity | ≤ 0.03 % |
| Moisture | ≤ 0.5 % |
| Ash | ≤ 0.10 % |
| Viscosity | Variable by different grades (CAB‑381‑0.5, CAB‑551‑0.2 etc.) |
Application & Use
Coating & ink: Automotive paint, wood coating, plastic coating, printing ink, improve leveling, anti‑blocking, pigment dispersion
Film & sheet: Photographic base film, transparent film, mould‑plastic parts
Cosmetic: Film‑former for nail polishOthers: Leather finish, wire insulation, powder coating anti‑caking agent
Packing
‑ 20kg /25kg fiber drum or kraft paper bag with PE inner liner.
Storage & Transportation
‑ Store in cool, dry, ventilated warehouse, keep sealed, avoid moisture and direct sunlight.
‑ Keep away from heat source and open flame. Transport as non‑hazardous goods.
- Disclaimer: Above data for reference only, not contractual standard.
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