Cellulose Acetate Butyrate

Name:
Cellulose Acetate Butyrate
Detailed information:

Chemistry name:	(CAB; cellulose acetobutytrate).
Properties:
White pellets or granules. A thermoplastic resin. D 1.2. Soluble in ketones; organic acetates; lactates; methylene, ethylene, and propylene chlorides; and high-boiling solvents. Excellent weathering properties, low water absorption, low heat conductivity, high dielectric strength, high resistance to oil and grease. Combustible.
Derivation:
Reaction of purified cellulose with acetic and butyric anhydrides, with sulfuric acid as catalyst and glacial acetic acid as solvent. The ratio of acetic to butyric components may be varied over a wide range.
Grade:
According to percent butyryl content (17, 27, 38, 50%).
Use:
Molding compositions, film and sheet, photographic film, lacquers, protective-coating solutions, taillight lenses, water-desalination membrane, piping and tubing, covering for aluminum fibers, toys, packaging, brush handles, hydrometers, miscellaneous consumer products.