Glossary

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Acetal Resins


The first commercial acetal resins were made in 1959. They are some of the most resistant rigid thermoplastic materials known and offer many excellent properties such as high elasticity, tenacity, resistance to stress and a white translucency similar to Nylon. They are used to make technical parts in varied sectors, from videocassettes to carburettors, to zips.


Cellulose Acetate


This material belongs to the cellulosic resin family. Like Celluloid it is obtained from the chemical modification of a natural polymer: cellulose, which is one of the most diffuse organic substances in nature. Cellulose acetate was the first plastic to be injection moulded. It is a white powder and because of its attractive appearance is used for transparent, translucent and opaque objects such as typewriter keys, calculators, switches, car wheel coverings, knife-handles, shoe-heels, lamp shades, pens, umbrella handles toys and so on.


ABS


ABS resins are one of the most valued mixtures of a resin and elastomer and owe their extraordinary success to the excellent properties deriving from this marriage. The initials ABS stand for three base substances in their preparation: acrylonitryl, butadiene and styrene. The first ABS resins were produced in the fifties. Their properties are tenacity, crash resistance and a hard surface. They are therefore mainly used for furniture, car parts, television sets, radios etc.

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