Eastman CA-398-6 Cellulose Acetate Butyrate

Features Of Eastman CA-398-10 Cellulose Acetate Butyrate

1. Low Viscosity & Easy Dissolution - Low-viscosity solution-grade feature, fast dissolution speed, suitable for various solution-type processing scenarios

2. Good System Compatibility - Compatible with various coating resins, ink systems and solvents, strong formula adaptability

3. Uniform & Stable Film Formation - Dense and uniform film formation, improving coating adhesion and weather stability

4. Convenient & Efficient Processing - Easy to add and disperse, simplifying production process and shortening processing cycle

5. Excellent Transparency - High transparency after film formation, suitable for high-transparency coating and film preparation needs

Typical Applications Of Eastman CA-398-10 Cellulose Acetate Butyrate

1. Architectural & Industrial Coatings - Used for exterior architectural and industrial equipment protective coatings to improve weather resistance and decorativeness

2. Printing Inks - Used for gravure and flexographic printing inks to ensure printing clarity and adhesion

3. Packaging Coatings - Used for non-food contact packaging and carton coatings to enhance packaging wear resistance

4. Compensation Films - Used for optical compensation film substrates to ensure film light transmittance and dimensional stability

5. Paper Coatings - Used for non-food grade paper coatings to improve paper smoothness and water resistance

Specifications Of Eastman CA-398-10 Cellulose Acetate Butyrate

Eastman CA-398-6 Cellulose Acetate Butyrate – Frequently Asked Questions (FAQ)

Q1: What are the key processing advantages of Eastman CA-398-6 compared to other cellulose esters?

A: Eastman CA-398-6 offers improved melt flow and lower melt viscosity than many higher-substituted cellulose acetates, enabling easier extrusion and injection molding. Its balanced acetyl and butyryl substitution also contributes to reduced moisture sensitivity and enhanced thermal stability during processing.

Q2: Is Eastman CA-398-6 suitable for use in coatings requiring good flexibility and adhesion on plastic substrates?

A: Yes — its inherent toughness, low glass transition temperature, and compatibility with common plasticizers make it well-suited for flexible, high-adhesion topcoats and overprint varnishes on polyolefins, ABS, and other engineering plastics.

Q3: How does Eastman CA-398-6 perform in solvent-based versus water-based formulations?

A: It is primarily designed for solvent-based systems and exhibits excellent solubility in common organic solvents such as ketones, esters, and aromatic hydrocarbons. While not inherently water-dispersible, it can be formulated into aqueous systems using appropriate surfactants or emulsification techniques, though performance depends heavily on the specific formulation architecture.

Q4: Can Eastman CA-398-6 be blended with other resins to modify film properties?

A: Yes — it demonstrates good compatibility with a range of thermoplastics and film-forming resins including acrylics, PVC, nitrocellulose, and certain polyurethanes. Blending allows formulators to fine-tune properties such as hardness, flexibility, gloss, and chemical resistance without compromising clarity or processability.