Лако-красочные материалы — производство

As Figure 9.3 shows, NAFTA countries have the biggest demand, followed by Eur­ope. Asia Pacific with 20% and “rest of the world” (ROW) with 5% are quite a lot smaller, but as more and more global paint companies are building up production units in China, Southeast Asia and India, these regions will become increasingly important. […]

With a total market of 9000-10 000 tonnes, the coatings industry is the main con­sumer market segment (Figure 9.3). Of this volume, 50% is used in the automo­tive sector for OEM and refinish coatings. Industrial and decorative paints are also important segments. (a) As the demand for HPP continues to grow in the plastics and […]

I will use two terms to indicate the types of pigment producers. Traditional Sup­pliers (TS) and Non-Traditional Suppliers (NTS). By “traditional suppliers” I mean those international chemical companies which have been producing organic pig­ments for many years. From the beginning, the locations of HPP production plants have always been located in the country of these […]

I estimate the total market for organic HPPs at: • Approximately 19 000 tonnes or approximately 9% of the total organic pigment volume of 220 000 tonnes • Approximately 1.2 x 109 USD or 30% of the total organic pigment market of 4.2 x 109 USD These figures are slightly higher than indicated in my […]

Fritz Brenzikofer 9.1 Introduction To characterize the market volume for High Performance Pigments (HPPs), we must first of all define what we understand by this term. Unfortunately, at this time there is no unique definition because the value-in-use of a pigment can differ depending on the technical or commercial view. From the technical aspect, Hugh […]

That crystal faces differ with respect to rates of growth and dissolution as well as wetting and adsorption behavior is vital for the processing and coloristic proper­ties of pigments. Light scattering, which is dependent on particle size and refrac­tive index, also plays a significant role in determining the optical properties of pig­ments. It is therefore […]

As a rule of thumb, pigments whose intermolecular interactions are mainly defined by p-p-interactions within stacks tend to form needles or rods parallel to the stacking direction. Typical examples are the phthalocyanines (Figure 8.12a). Only P. B.15:3 may be obtained in the form of platelets by defined control of super­saturation during the pigment synthesis [59]. […]

Elucidating crystal structures paves the way to understanding and controlling all properties of high-performance pigments. This involves the control of particle morphology and the tailoring of the interfacial properties of the pigment particles. Crystal morphology has a crucial influence on the properties of most crystalline products. It determines handling, mechanical, optical, and even chemical proper­ties […]

Even in the days before X-ray crystallography, color chemists have recognized polymorphism by color changes. In contrast to molecularly dissolved dyes, excita­tions in pigment crystals are affected by supramolecular interactions in the solid state. As a consequence, the absorption spectrum of a pigment crystal differs from the spectrum of the isolated pigment chromophores (Figure 8.10). […]

Pigments are comparatively large molecules. The computation time for a crystal structure calculation is approximately linearly proportional to the number of atoms per molecule (more accurately, per asymmetric unit), but depends exponen­tially on the number of degrees of freedom. However, pigment molecules are fairly rigid and have limited conformational flexibility, which reduces computa- Figure 8.8 […]