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McDunnough, Inc. Provides Cellulosic Plastics

Cellulosic Plastics
The family of cellulosics includes cellulose acetate, cellulose acetate butyrate, cellulose propionate, and ethyl cellulose. There are other cellulosics, but these are the most widely used. Cellulosics are characterized by good strength, toughness, and transparency and high surface gloss. The main feature of cellulosics is their excellent moldability, which results in brilliant, high-gloss finish. Celllulosic compounds are available for extrusion, injection molding, blow molding, and rotational molding, Cellulosics also are widely used in the form of film and sheet.
CA Cellulose acetate, which is the lowest-cost cellulosic material, has good toughness and rigidity. This easily molded material is available in a variety of grades, ranging from "soft" to "hard".
CAB Cellulose acetate butyrate, although a little more expensive than the straight acetate, is somewhat tougher, with a hornlike quality, and has lower moisture absorption. It has relatively good weatherability and excellent transparency.