Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Eastman CA 398-30 Cellulose Acetate

Eastman CA 398-30 is a high-purity cellulose acetate resin from Eastman’s CA series, featuring 39.8% acetyl content and low viscosity for excellent film-forming and coating performance in premium applications like filtration membranes and optical films.
  • eastman ca 398 30 cellulose acetate_81052d34
  • eastman ca 398 30 cellulose acetate_81052d34

Features Of Eastman CA 398-30 Cellulose Acetate

  1. High acetate content (≈39.8% acetyl) for enhanced solubility in common organic solvents such as acetone, ethyl acetate, and methyl ethyl ketone.

  2. Consistent molecular weight distribution ensuring predictable film-forming behavior and mechanical performance in coatings and films.

  3. Excellent clarity and gloss retention, making it ideal for high-appearance optical and decorative applications.

  4. Good thermal stability during extrusion and solution processing without premature degradation or yellowing.

  5. Compatible with plasticizers (e.g., triethyl citrate, acetyl tributyl citrate) to tailor flexibility and impact resistance.

Typical Applications Of Eastman CA 398-30 Cellulose Acetate

  1. Transparent protective coatings for eyewear lenses, optical filters, and display overlays.

  2. Base resin for premium-grade cigarette filter tow and filtration media requiring precise porosity and stiffness.

  3. Biodegradable packaging films where clarity, printability, and compostability are required.

  4. Adhesive components in pressure-sensitive tapes and labels demanding clean release and low extractables.

  5. Binders in pharmaceutical tablet coatings for controlled dissolution and aesthetic finish.

Specifications Of Eastman CA 398-30 Cellulose Acetate

Chemical TypeCellulose acetate homopolymer
Product FormWhite to off-white granular solid
AppearanceFree-flowing, uniform granules
Acetyl Content39.5–40.1 wt% (nominal 39.8%)
SolubilitySoluble in acetone, MEK, ethyl acetate, dioxolane; insoluble in water and aliphatic hydrocarbons
Viscosity (10% w/v in acetone, 25°C)28–32 cP
Moisture Content (as received)≤4.0 wt%
Primary ApplicationsCoatings, filtration, packaging films, pharmaceuticals, adhesives


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