Cellulose Acetate Butyrate (CAB) CAS 9004-36-8: Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Basic Properties
CAS Number: 9004-36-8
Chemical Formula: (C6H10O5)n modified with acetyl and butyryl groups
Appearance: White to off-white granular solid
Technical Parameters
| Parameter | Value Range |
|---|---|
| Butyryl Content | 17-55% |
| Acetyl Content | 2-30% |
| Hydroxyl Value | 0.5-4.5% |
| Melting Point | 230-250°C |
| Density | 1.2-1.3 g/cm³ |
Grade Comparison
| Grade | Butyryl Content | Key Advantage |
|---|---|---|
| CAB-171-15 | 17% | High hardness |
| CAB-381-20 | 38% | Flexibility |
| CAB-551-0.5 | 55% | Solubility |
2. Key Applications & Industrial Uses
Primary Application Sectors
| Industry | Function |
|---|---|
| Automotive Coatings | UV resistance enhancer |
| Printing Inks | Viscosity modifier |
| Biodegradable Plastics | Plasticizer alternative |
3. Performance Advantages of CAB
- Superior weatherability (5,000+ hours QUV testing)
- Low moisture absorption (<0.5% at 50% RH)
- Compatible with nitrocellulose, acrylics, and polyurethanes
4. Practical Use Cases
Case 1: High-Gloss Automotive Clearcoat
Problem: Orange peel effect in premium car finishes
Solution: 2.5% CAB addition improved flow characteristics
5. Client Success Stories
Client A: European Automotive Supplier
Challenge: Reduce coating defects in humid environments
Result: 38% reduction in surface imperfections using CAB-381-20
Client B: Flexible Packaging Manufacturer
Challenge: Improve ink adhesion on PE films
Result: Achieved 4x better adhesion using CAB-modified ink system
6. Request a Custom Quote
Technical Support: (86) 15866781826
Email: info@vivalr.com
Our engineers will respond within 2 working hours with formulation recommendations.
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