Any one of a number of special chemicals added to a product to bring about special effects. Examples are: driers, anti-setting agents, and coloring.
In many plastic products, the polymer is only one constituent. In order to arrive at a set of properties appropriate to the product, the polymer is almost always combined with other ingredients, or additives, which are mixed in during processing and fabrication. Among these additives are impact modifiers, colorants, reinforcements, plasticisers and stabilisers. See also plastics and conversion.
A number of chemical and other products incorporated into processed foods, including flavourings, dyes, nitrates and other agents. Used to alter the colour, flavour, increase the nutritional value and ease the processing, packaging and storage of foods.