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Plastic materials usually contain not only plastic polymers but a variety of different additives in the plastic matrix to improve performance and use application or processing properties of the final product. Additives are a different group of special chemicals which are either incorporated into the plastic matrix prior or during processing or applied to the final products' surface after the processing (34).
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.