Plastic part coating still involves technical problems regarding adhesion, water evaporation etc. These deficits have now been encountered by polyester polyols using biobased technology....
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New solvent-free product is designed for high performance waterborne ambient cure two-component epoxy monocoats and primers for metallic substrates....
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Two new polyester resins have been developed, which can be used as alternatives to epoxy resins in powder coating applications....
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A new study showed that an intumescent formulation significantly enhanced the fire retardancy of painted plywood....
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The present invention, the process of formulating aqueous polymer dispersions may begin with acidolysis of an engineered polyester to yield shorter chain length, acid (hydroxyl) functional intermediates....
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Cytec Industries Inc. presents two new polyurethane dispersion resins....
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A new vinyl acetate/ethylene (VAE) emulsion was designed for low VOC, exterior masonry façade paints and plasters....
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Scientists examined the effect of NCO/OH ratio and an increase in hydroxyl content of acrylic polyols on the properties of polyurethane (PU) coatings....
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Due to its good drying properties, formulations based on the new core-shell self-crosslinking dispersion can also be utilised in plants with short production cycles....
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Because of past supply issues in higher ethylene amine derivatives and the concern for potential future issues, a series of TETA-free polyamide curatives will be introduced. It is one alternative stream that could be used in the production of polyamide curing agents....
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Vinyl acetate ethylene copolymers represent today a significant part of the decorative paint market. A new technology is presented making facade paints and resin bound plasters possible without compromising performance....
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Pure acrylic waterborne technology improves the exterior durability of coatings applied on various substrates. Furthermore, the use of pigment encapsulated technology (PET) in masonry paints gives good adhesion to mineral substrates. Replacing part of the TiO2 and binder with an opaque polymer also brings improvements and PET and organic opacifiers when used together also show benefits....
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Sprayed concrete is used in large quantities on major construction projects. As rebound during spraying results in loss of material and affects proper-ties, polymer additives were designed specifically to reduce this problem. Large-scale tests confirmed that adhesion to wet substrates, permeability and cracking could all be improved. The added costs can be more than offset by reductions in working time....
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Powder coatings have historically scored very high in terms of the ‘4Es’?–?economy and ease of application, excellence of finish and ecology. Recent resin developments which offer further gains in these key properties are discussed. They include lower temperature cure, better appearance in thin films, elimination of the pretreatment step and a resin based on renewable resources....
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It is demonstrated that sustainability and performance can go together. Susatainable solutions can match and in many cases exceed the perfomance of conventional solutions. These include polyols for PUR systems and various additives, mainly for waterborne coatings. Some challenges facing future development of greener coatings technologies are summarised....
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