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CA-398-3
CA-398-3 is a low molecular weight cellulose acetate. It is used as a film former in coatings and as a membrane material for filtration membranes.
CA-398-3 is the lowest molecular weight cellulose acetate available from Eastman™. Coatings made from CA-398-3 have excellent heat resistance, chemical resistance, durability, UV stability, and will outperform coatings based on nitrocellulose. CA-398-3 can also be used in food contact applications as it is generally recognized as safe by the FDA. CA-398-3 can also be used to make filtration membranes. These membranes are well suited for applications with a high risk of fouling. Membranes composed of cellulose acetate make intimate contact with aqueous feed streams and reduce the risk of fouling. They are also resistant to chlorine allowing them to be cleaned without being degraded. Cellulose Acetate, like CA-398-3, has a natural selectivity for CH4 and CO2. This is why spiral wound and hollow fiber membranes composed of cellulose acetate are ideal for natural gas filtration and sweetening. CA-398-3 is available as a free flowing powder and should be let down in solvent prior to addition to a formulation.
Chemical resistant Provides high strength Good weather-ability Non-yellowing Good flow and leveling Pigment dispersion medium Provides metallic pigment control Redissolve resistance Intercoat adhesion
Problems Solved
Poor chemical resistance of lacquers and coatings Discoloration of coatings caused by UV and heat Damage done to filtration membranes by strong oxidizing cleaning agents
Applications
Membrane material; Barrier Coatings; Packaging Films
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Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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