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CAP-482-20
CAP-482-20 is a high–molecular weight cellulose acetate propionate (CAP). It is commonly used as a film former and resin modifier in inks, coatings, and nail polish.
Fulfilled By ChemPoint
- Manufacturer: Eastman
- Product Line: Eastman Cellulose Esters
- Product: Cellulose Acetate Propionate
- Industries: Adhesives | Inks
- Authorized Countries: Canada | United States
Fulfilled By ChemPoint
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Overview
Eastman CAP-482-20 is a cellulose ester with a high propionate level and high viscosity. Cellulose acetate propionates (CAPs) are highly soluble and have good compatibility with most common resins. They provide the durability of cellulose acetate and the flexibility and solubility of cellulose acetate butyrate. Thus, they are viewed as intermediate options in terms of properties and chemical structure within Eastman's cellulose ester portfolio.
CAP-482-20 is commonly used as a film former, resin modifier, and additive in inks, OPVs, and plastic and paper coatings. Unlike cellulose acetate butyrate (CAB), Eastman CAP-482-20 is virtually odorless. This makes it preferred over CABs in inks, OPVs, and paper coatings used in packaging. Adding CAP-482-20 to a coating or ink improves leveling, dry-to-touch time, durability, gloss, and UV stability. CAP-482-20 is commonly blended with CAP-482-0.5 to achieve proper viscosity.
Specifications
Viscosity (ASTM-A, sec): 15–25
Acetyl (by GC, wt%, max): 2.5
Propionyl (by GC, wt%): 45–49
Free acidity (ppm, max): 300
Moisture (wt%, max): 3.0
Primary Chemistry: Cellulose acetate propionate
Features & Benefits
Emits low odor
Imbues nonyellowing properties
Improves flow and leveling
Provides pigment dispersion
Reduces blocking
Increases chemical resistance
Shortens dry time
Problems Solved
Yellowing of nail polish when exposed to heat and sunlight
Blocking of coatings and printing inks
Slow dry times of solvent-based formulations
Poor leveling and wetting of solvent-based coatings and inks
Use of coating and ink additives that are not naturally derived
Applications
Printing inks
Overprint varnish
Nail care
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