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CAB-381-2
CAB-381-2 is a medium molecular weight mixed cellulose ester with moderate butyrate content. It is used as a film former, resin modifier, and additive in solvent-based inks and coatings.
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- Manufacturer: Eastman
- Product Line: Eastman Cellulose Esters
- Product: Cellulose Acetate Butyrate
- Industries: Adhesives | Coatings | Inks | Personal Care
- Authorized Countries: Canada | United States
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Authorized Countries
Canada
United States
Overview
CAB-381-2 is a cellulose acetate butyrate (CAB) with moderate butyrate content and a higher than average molecular weight for the 381 series. The increased molecular weight of CAB-381-2 provides films with improved toughness over lower molecular weight CABs. CAB-381-2 is compatible with a broad range of solvents, resins, and plasticizers allowing formulators many options when optimizing a system. When used in coatings CAB-381-2 improves orientation of metallic pigments, increases gloss, increases UV stability, and decreases surface defects. As a binding resin in inks CAB-381-2 improves pigment dispersion, wetting, and UV stability. CAB-381-2 is also commonly used in nail care applications because it is more stable than other film-formers like nitrocellulose. When used as a film former in nail polish CAB-381-2 offers fast cure speed and excellent UV resistance. Nail polish formulations require fewer reapplications when utilizing CAB-381-2 as a film former.
Specifications
Viscosity ASTM-A, sec: 1.2 - 2.8
Acetyl by GC, wt%: 12 - 15
Butyryl by GC, wt%: 36 - 40
Free acidity, ppm: 300 Max
Moisture, wt%: 3.0 Max
Hydroxyl, wt%: 1.0 - 2.0
Primary Chemistry: Cellulose Acetate Butyrate
Features & Benefits
- Improve flow and leveling
- Reduce cratering
- Reduce dry time
- Provide polishability
- Improve sprayability
- Pigment dispersion medium
- Metallic pigment control
- Redissolve resistance
- Sag resistance
- Enhanced color uniformity
- Decreased sand scratch telegraphing
- Intercoat adhesion
Problems Solved
Poor durability of coatings and inks formulated with lower molecular weight polymers
Long dry times of solvent based coatings with formulated with slower solvents
Intercoat adhesion failure
Coating defects caused by leveling and flow issues
Applications
Automotive Coatings; Plastic Coatings; Printing Inks; Overprint Varnish; Nail Polish; Laquers; Wood Coatings; Paper Coatings; Textile Coatings
Related Applications
Adhesives
Coatings
- Aerosol Coatings
- Aerospace Coatings
- Appliances & Machinery Coatings
- Architectural Coatings
- Automotive OEM Coatings
- Automotive Refinish
- Basecoats
- Ceramic Coatings
- Coil Coatings
- Consumer Paints
- Electronics Coatings
- Floor Coatings
- Furniture Coatings
- Industrial Coatings
- Lacquers
- Marine Coatings
- Metal Coatings
- Nail Polish
- Overprint Varnishes
- Pipe Coatings
- Plastic Coatings
- Primers
- Release Coatings
- Special Purpose Coatings
- Stone and Tile Coatings
- Terra Cotta Coatings
- Textile & Leather Coatings
- Topcoats
- Traffic Paint
- Wood Coatings
- Automotive Inks
- Commercial & Publication
- Corrugated Boxes
- Digital Inks
- Flexible Films
- Glass & Ceramics
- Graphic Arts Coatings
- Narrow Web
- Packaging
- Plastics
- Printed Electronics
- Tag & Label
- Textiles
Related Chemistries
Related Functions
Adhesives
Coatings
Inks
Personal Care
Related Technologies
Eastman Cellulose Esters Articles
Eastman Automotive
Eastman Solus™ performance additives are the newest cellulose esters designed for high-solids solvent-borne systems. Solus™ is specifically engineered to meet lower VOC target while improving performance in clear, pigmented and metallic automotive coatings.
Eastman Cellulose Esters - Metal coatings
Eastman CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
Eastman™ Cellulose Esters - Inks
Eastman cellulose esters can be formulated into inks as the main film former, co-resin, or additive to improve appearance, performance, and productivity.
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