Cellulose Acetate Butyrate CAB CAS 9004-36-8

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CAS：9004-36-8

Purity：99%

Molecular Formula：N/A

Molecular Weight：0

EINECS：618-381-2

Storage Period：2 years

Cellulose acetate butyrate is a material with many excellent properties and is widely used in many fields. Cellulose acetate butyrate has excellent moisture resistance, UV resistance, cold resistance, flexibility, transparency and electrical insulation. Its melting point is 195-205℃, density is between 1.15 and 1.22g/cm³, and it has high transparency and good weather resistance.

Enterprise product standards	CAB-381-0.1	CAB-381-0.5	CAB-381-2	CAB-381-20	CAB-551-0.01	CAB-551-0.2
Butyryl Content	35.50% ~41.50%	35.50% ~41.50%	35%-41%	36%-40%	45%-58%	44%-58%
Acetyl Content	10%-18%	10%-18%	10%-18%	11%-18%	1%-5%	1%-4%
Hydroxyl Content	0.0-3.0%	0.0-3.0%	0.0-3.0%	0.0-3.0%	0.0-3.0%	0.0-3.0%
Viscosity	0.05-0.35	0.35-0.8	0.85-1.25	1.3-1.8	0.01-0.15	0.2-0.55
Color	≦100unit	≦100unit	≦100unit	≦100unit	≦100unit	≦100unit
Haze	≦50NTU	≦50NTU	≦50NTU	≦50NTU	≦50NTU	≦50NTU
Acidity as Acetic Acid	0.00~300	0.00~300	0.00~300	0.00~300	0.00~300	0.00~300
Ash Content	≦1.5%	≦1.5%	≦1.5%	≦1.5%	≦1.5%	≦1.5%

Melting point	Measured	Measured	Measured	Measured	Measured	Measured
Glass Transition Temperature (Tg）	Measured	Measured	Measured	Measured	Measured	Measured

Cellulose Acetate Butyrate (CAB) is a high-performance cellulose ester with excellent transparency, weather resistance, flexibility, and UV resistance. It is widely used in coatings, inks, plastics, films, and specialty industrial materials. As part of the Unisunchem Product Portfolio, CAB is suitable for high-end coating and polymer applications.

1. Coatings & Paints

CAB is widely applied in automotive coatings, wood coatings, plastic coatings, and metal varnishes due to its excellent film-forming properties, fast drying performance, and anti-yellowing characteristics. It improves leveling, gloss, scratch resistance, and pigment dispersion in coating systems.

For UV-curable formulations, CAB can also work together with reactive diluents such as Triethyleneglycol Divinyl Ether to improve coating flexibility and curing performance.

2. Printing Inks & Packaging

CAB is commonly used in gravure inks, printing inks, and packaging coatings because of its excellent adhesion, transparency, and solvent release properties. It enhances print quality and improves coating durability.

3. Plastics & Engineering Materials

CAB is suitable for engineering plastics, tool handles, transparent sheets, cables, and outdoor signs. Its outstanding weather resistance and toughness make it ideal for durable plastic applications.

4. Films & Optical Applications

Due to its high transparency and dimensional stability, CAB is used in film bases, photographic materials, and optical-grade films requiring excellent clarity and UV resistance.

5. Adhesives & Specialty Resins

CAB can be incorporated into adhesive and resin systems to improve flexibility, toughness, and coating appearance. It is also compatible with various epoxy and crosslinking systems, including products like 1,4-Butanediol Diglycidyl Ether.

Excellent transparency and optical clarity
Outstanding weather resistance and UV stability
Good flexibility and cold resistance
Fast drying and excellent film-forming performance
Improves coating leveling, gloss, and scratch resistance
Compatible with multiple resin and coating systems
Suitable for coatings, inks, plastics, films, and adhesives
Available in different viscosity grades for industrial applications
Reliable global supply and technical support from Unisunchem

20kg/carton

Q1: What is Cellulose Acetate Butyrate CAB used for?

Cellulose Acetate Butyrate CAB is widely used in coatings, inks, plastics, films, packaging materials, and automotive coatings due to its excellent transparency, flexibility, and weather resistance.

Q2: What are the advantages of CAB in coatings?

CAB improves gloss, leveling, pigment dispersion, anti-yellowing performance, and scratch resistance while accelerating drying speed in coating systems.

Q3: Is Cellulose Acetate Butyrate suitable for outdoor applications?

Yes. CAB has excellent UV resistance, weather resistance, and durability, making it suitable for outdoor signs, automotive coatings, and exterior plastic materials.

Q4: Can CAB be used with UV-curable systems?

Yes. CAB is compatible with many UV-curable coatings and can be combined with products such as Triethyleneglycol Divinyl Ether for enhanced curing performance.