Modern functional additives are indispensable in high-quality coatings as they effectively impact the properties even if involving only small quantities. Additives can be subdivided categorically according to their application. Processing additives as defoamers, dispersants, wetting agents and rheology modifiers exercise a strong influence on the production of coatings. Functional additives are mainly responsible for the final coating's surface properties. Gloss, pleasing haptics, an improved cleanability or an enhanced scratch resistance are examples demonstrating this. Functional polysiloxanes are often the preferred base material. Property modifications can be achieved via chemical functionalization of the polymeric base body. By linking hydrophilic and hydrophobic domains in the form of sidechains to the siloxane backbone, three main structures underlying an increasing steric complexity are obtainable. ABA polymers, so a-co-substituted linear siloxanes, represent the simplest form. Orango modifications attached in-chain result in graft polymers, an augmentation to networks is possible here. With three different polysiloxane structures, it is to be demonstrated which qualities can be combined in modern multi-function additives.
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