Pigment dispersion technology

Bayer Technology Services has introduced BayAPS PP in a factory producing about 40 pigment dispersions in 80 different packings on several production lines with a common packing station. 

Exploiting ATRP as an enabling technology, we have recently synthesised a wide range of new, controlled-structure copolymers. These include (1) branched analogues of Pluronic non-ionic surfactants (2) schizophrenic polymeric surfactants which can form two types of micelles in aqueous solution (3) novel sulfate-based copolymers for use as crystal habit modifiers (4) zwitterionic diblock copolymers, which may prove to be interesting pigment dispersants. Each of these systems is discussed in turn below. 

Patton, T.C. Paint flow and Pigment Dispersion A Rheological Appivach to Coating and Ink Technology, 2nd Edition, John Wiley Sons, Inc.. New York, NY. 1979. 

Given the potential consequences of inadequately dispersed pigments, pigment manufacturers apply proprietary surface treatments to make their products easier to disperse, and colorists who formulate with these pigments devote at least as much effort to dispersion technology as they do to color formulation technology. 

Federal requirements to produce increasingly lower VOC paints34 have been a significant driver of CCT technology.447 Telechelic polymers and other functional systems are used as low-viscosity reactive cross-linkers,35 and pigment dispersants.37... 

J.C. Berg (Ed.), Wettability. Surfactant Science Series 49, Marcel Dekker, New York, 1993. T.C. Patton, Paint Flow and Pigment Dispersion, A Rheological Approach to Coating and Ink Technology. Wiley, New York, 1979. 

Pigment Dispersion Group, Technology Centre Decorative Coatings... 

Materials possessing charged surfaces include almost all of the inorganic oxides and salts of technological importance (silica, alumina, titania, etc.), the silver halides, latex polymers containing ionic comonomers, and many natural surfaces such as proteins and cellulosics. It is very important, therefore, to understand the interactions of such surfaces with surfactants or other adsorbates in order to optimize their effects in such applications as paint and pigment dispersions, papermaking, textiles, pharmaceuticals, and biomedical implants. 

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