SpecialChem4Coatings.com R&D Highlights in Coatings and Inks Formulation

Preparation of new biobased polyesters containing glycerol and their photodurability for outdoor applications

Fri, 03 Feb 2012 00:00:00 +0100

The synthesis of novel poly(butylene dodecanoate)s containing different percentages of glycerol was successfully carried out. The polyesters are characterized by branched or cross-linked molecular structures, according to the glycerol content. The... (R&D Highlight)

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Photopolymerization process of UV powders. Characterization of coating properties

Fri, 03 Feb 2012 00:00:00 +0100

The aim of the study was to correlate the characteristics of UV powder resins with the photochemical process and the final coating properties. RT-FTIR spectroscopy equipped with an environmental cell was implemented to follow photopolymerization... (R&D Highlight)

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Size effect on the rheological behavior of nanoparticle suspensions in associating polymer solutions

Fri, 03 Feb 2012 00:00:00 +0100

Associating polymers are hydrophilic long-chain molecules containing a small amount of hydrophobic groups and tend to create bonds between chains by reversible associating interactions. The effects of associating polymer on the steady-shear viscosity... (R&D Highlight)

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Ring opening of epoxidized methyl oleate using a novel acid-functionalized iron nanoparticle catalyst

Fri, 03 Feb 2012 00:00:00 +0100

Hydroxyl soybean oils, also called soy polyols, are biobased chemicals designed to replace petroleum-based polyols mainly for polyurethane (PU) applications. Soy polyols are obtained by acid-catalyzed ring opening of expoxidized soybean oils or other... (R&D Highlight)

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Coated article with absorbing layer

Fri, 03 Feb 2012 00:00:00 +0100

A coated article is provided with an absorbing layer(s). The coating is, in certain example embodiments, designed so that significant changes in visible transmission can be made by adjusting thickness of the absorbing layer without significantly... (R&D Highlight)

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Antimicrobial effect of cycloaliphatic diol antimicrobial agents in coating compositions

Fri, 03 Feb 2012 00:00:00 +0100

A cycloaliphatic diol antimicrobial agent selected from the group consisting of 1,1-cyclohexanedimethanol, 1,2-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, and 2,2,4,4-tetramethyl-1,3-cyclobutanediol was found to provide antimicrobial activity... (R&D Highlight)

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Multilayer organic–inorganic coating incorporating TiO2 nanocontainers loaded with inhibitors for corrosion protection of AA2024-T3

Fri, 03 Feb 2012 00:00:00 +0100

Organic–inorganic multilayer coating containing organically modified silicates, epoxy resins and TiO2 nanocontainers loaded with 8-hydroxyquinoline were produced on AA2024-T3 substrates via dip coating method. The parameters of the curing temperature... (R&D Highlight)

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Low VOC coalescing agents

Fri, 03 Feb 2012 00:00:00 +0100

This patent describes a coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of dibasic esters, specifically (i) esters of adipic, glutaric, and/or succinic diacids and/or (ii) esters of isomers... (R&D Highlight)

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Method to Isolate & Characterize Oligomers in the Aqueous Phase in Emulsion Copolymerization

Sat, 28 Jan 2012 00:00:00 +0100

In order to model the entry of radical in emulsion copolymerization, a study of the oligomers present in the aqueous phase is necessary. In this work a new method for separation and characterization of the aqueous phase has been developed.... (R&D Highlight)

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Quinoxaline Derivatives as Long Wavelength Photosensitizers in Photoinitiated Cationic Polymerization of Diaryliodonium Salts

Sat, 28 Jan 2012 00:00:00 +0100

The present paper is focused on visible light initiated cationic polymerizations. Photoinitiated polymerization of representative vinyl ether and oxirane monomers using two quinoxaline derivatives; namely (2-(2,3-dihydrobenzo... (R&D Highlight)

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Recent Progress in Corrosion Protection of Magnesium Alloys by Organic Coatings

Sat, 28 Jan 2012 00:00:00 +0100

The excellent properties of magnesium alloys, especially the high strength/weight ratio, make them desirable materials in the automotive industry. However, their high corrosion susceptibility has greatly limited or even prevented their larger scale... (R&D Highlight)

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Low VOC Colorant Compositions

Sat, 28 Jan 2012 00:00:00 +0100

An aqueous liquid colorant composition having a volatile organic content up to 50g/l and suitable for coloring aqueous or solventborne architectural coatings and basepaints comprising based on the total weight of the composition, i) from 0 to 26% of... (R&D Highlight)

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Antimicrobial Coatings

Sat, 28 Jan 2012 00:00:00 +0100

The present invention provides a novel coating containing antimicrobial phenolic complexes having improved adherence on hard surfaces, wood and plastic surfaces. More particularly there is provided polyurethane coating compositions containing... (R&D Highlight)

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Enhanced Cationic Photocuring of Epoxides with Styrene Oxide as a Reactive Diluent

Sat, 28 Jan 2012 00:00:00 +0100

Styrene oxide [StO] has been investigated as a reactive diluent for cationic photocurable formulations to provide key requirements such as low viscosity and negligible odor, in addition to high photoreactivity. The formulations were composed of... (R&D Highlight)

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Flow Modifier for Water-based Coating Material & Composition Containing the Same

Sat, 28 Jan 2012 00:00:00 +0100

An object of the present invention is to provide a graft copolymer that is usable as various functional materials, that is stimulus responsive, and that is soluble in water at ordinary temperatures; and to provide an aqueous coating composition that... (R&D Highlight)

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Kinetic Study of Photoinduced Quasi-simultaneous Interpenetrating Polymer Networks

Sat, 21 Jan 2012 00:00:00 +0100

Interpenetrating Polymer Networks (IPNs) based on a dimethacrylate and an epoxide are synthesized by photopolymerization. By varying the relative amount of radical photoinitiator with respect to the cationic one, and by changing the exposure... (R&D Highlight)

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Low VOC Colorant Compositions

Sat, 21 Jan 2012 00:00:00 +0100

Effect of Heating on the Performance of Anticorrosive Coatings

Sat, 21 Jan 2012 00:00:00 +0100

In order to know the behavior of an organic coating at different temperatures, a drying aging cycle was performed by heating on substrate steel and free-of-substrate films during ten uninterrupted days at three and different temperatures: 65, 85 and... (R&D Highlight)

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Clearcoat Composition for Use in Waterborne Basecoat-clearcoat Composite Coatings

Sat, 21 Jan 2012 00:00:00 +0100

The present invention provides a process for forming a multilayer coating on a substrate comprising: (a) depositing a color-imparting waterborne basecoat composition on the substrate to form a basecoat layer, (b) depositing a clear isocyanate... (R&D Highlight)

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Color Foundation Coat and Color Top Coat Paint System

Sat, 21 Jan 2012 00:00:00 +0100

This patent describes a paint system that includes a foundation base component combined with a tinted, opaque top coat component and that hides any colors on all types of substrates and maintains the brightness and cleanness for all colors. The... (R&D Highlight)

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