Product Code Database
Cellulose acetate butyrate ( CAB) is a mixed ester thermoplastic derivative of cellulose acetate that contains both acetate and Butyric acid functional groups. It has improved weathering resistance and lower moisture absorption compared to cellulose acetate. The exact properties of a CAB compound is determined by the composition of butyrate vs acetate functional groups.
CAB is commonly used as a binder or additive in coatings. CAB is widely used for tool handles, due to its toughness and resistance to oil and gasoline. Tools with CAB handles can begin to outgas unpleasant butyric acid odors with age, which one manufacturer combats by adding vanilla scent to the plastic. Another usage of CAB is the production of rigid gas-permeable contact lenses.
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