Seed oils rich in linolenic acid as renewable feedstock for environment-friendly crosslinkers in powder coatings

Overeem, A.; Buisman, G.J.H.; Derksen, J.T.P.; Cuperus, F.P.; Molhoek, L.; Grisnich, W.; Goemans, C.

doi:10.1016/s0926-6690(99)00018-7

Cited by 42 publications

(23 citation statements)

References 14 publications

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“…Epoxidized linseed oil has already been known for several years as a bio-based crosslinker for powder coating resins, 11 but although it effectively crosslinks numerous powder coating formulations and is commercially applied to some extent, its application scope is limited because it has a tendency to severely lower the T g of powder coating formulations, and thereby has a negative effect on storage ability and the processing window. The authors, therefore, recently started to explore the potential of using more rigid renewable building blocks to produce tri-or tetra-functional crosslinkers suitable for both hydroxy-and acid-functionalized resins.…”

Section: Powder Coating Resins and Crosslinkersmentioning

confidence: 99%

Resins and additives for powder coatings and alkyd paints, based on renewable resources

et al. 2007

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Due to limited fossil resources and an increased need for environmentally friendly, sustainable technologies, the importance of using renewable feedstocks in the paint and coatings area will increase in the decades to come. This paper highlights some of the perspectives in this area. Alkyd resins for high-solid paints and reactive diluents, completely based on commercially available renewable resources, were prepared and characterized. Alkyd resins based on sucrose and unsaturated fatty acids or oils showed a low intrinsic viscosity, making them suitable to be used in high-solid alkyd paints. Reactive diluents based on similar starting materials showed excellent properties with regard to thinning behavior and effect on drying characteristics. Powder coating polyester resins were synthesized, starting from isosorbide and diacids. Polyester resins with glass transition temperatures up to 70°C were obtained. Incorporation of small amounts of other diols and trifunctional components was found to improve color and coating properties. In order to create completely renewable resin systems, the development of renewable drying agents for alkyds and crosslinkers for powder coatings is in progress.

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Section: Powder Coating Resins and Crosslinkersmentioning

confidence: 99%

Resins and additives for powder coatings and alkyd paints, based on renewable resources

et al. 2007

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“…It is now successfully cultivated in some countries of central and southern Europe, after many efforts (Overeem et al 1999). All parts of the plant species such as leaves and seeds can be economically used (Hedrick 1972).…”

Section: Introductionmentioning

confidence: 99%

“…Its seed production in some regions of world, especially some European countries (Overeem et al 1999), faces the alterations in environmental conditions during the growth period due to relatively unsteady wet climates (Van Soest et al 1987;Strasil and Kas 2005). In addition, the influence of planting dates on growth, yield and chemical components was recently reported (Badawy et al 2013).…”

Section: Introductionmentioning

confidence: 99%

The influence of TDZ concentrations on in vitro growth and production of secondary metabolites by the shoot and callus culture of Lallemantia iberica

Pourebad

Motafakkerazad

Kosari‐Nasab

et al. 2015

Plant Cell Tiss Organ Cult

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Lallemantia iberica (Lamiaceae) has pharmaceutical and nutritional importance owing to production of oily seeds and synthesis of commercially secondary metabolites. In the present study, total phenol and flavonoids content and quantitative changes in the shoot and callus pigments of L. iberica were investigated. Moreover, some growth parameters and volatile content of in vitro grown shoots were analyzed. Nodal segments and epicotyldons were used as the explants for shoot and callus formation, respectively. In the multiplication stage of shoot culture, MS medium supplemented with six concentrations of TDZ was employed. For callus induction, 1 mg/l of TDZ, NAA and a combination of NAA and BA were used. Extracted volatile products were analyzed by GC-mass spectrometry. According to the results, the concentration range of TDZ from 0.22 to 0.66 mg/l improved the flavonoids production and the highest content was reported to be in 2 mg/l TDZ (157.5 ± 25.9 mg QE/ g); also, the highest amount of total phenol (3.86 ± 1.02 mg PYRO/g) was observed in 0.66 mg/l TDZ. For induced calli, among the three tested types of PGRs, TDZ treatment was efficient for total phenol and flavonoids. In general, the higher content of flavonoids was obtained from L. iberica shoots while the callus of this plant was efficient for total phenol production. 55 components were identified using GC-MS analysis indicating a low amount of mono and sesquiterpenes and high quantity of alkan hydrocarbons.

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“…The properties of the oil and the possible chemical reactions are, to a large extent, governed by the fatty acid pattern, structure, and fraction of specific fatty acids contained in the triglyceride structure. The fatty acid pattern not only differs between different oil crops but also depends on the growth conditions, e.g., colder climate increases the unsaturation level in linseed oil (2). Fatty acids can be obtained from the oils by ester hydrolysis or, if the methyl esters are preferred, by transesterification.…”

mentioning

confidence: 99%

“…The unsaturations can easily be transformed into oxirane groups (epoxides) forming cationically curable resins (6,7). These resins have been proposed for several applications ranging from composite matrices (8) to powder coatings (2). The functionality of these resins, however, is still dependent on the level of unsaturation in the initial oil.…”

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confidence: 99%

A study of fatty acid methyl esters with epoxy or alkyne functionalities

Samuelsson

Johansson

2001

J Americ Oil Chem Soc

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Described are the physical and chemical properties of the methyl esters of two uncommon fatty acids: vernolic acid, containing an epoxy group, and crepenynic acid, containing a triple bond. The incorporation of an epoxy or alkyne group into the fatty acid structure is shown to greatly affect the properties compared to conventional unsaturated fatty acids. The methyl esters have been characterized and compared with ordinary fatty acid methyl esters (i.e., methyl oleate and linoleate) with respect to spectroscopic characterization [ 1 H nuclear magnetic resonance (NMR)], 13 C NMR, and Fourier transform infrared), rheological properties, and oxidative reactivity (using chemiluminescence). Both methyl vernoleate and methyl crepenynate could successfully be produced by transesterification under basic conditions without reaction of the epoxy or alkyne groups. Rheological measurements showed that the methyl esters had a significantly lower viscosity compared to their triglyceride analogs. Smaller differences were seen when comparing the different methyl esters where methyl vernoleate had the highest viscosity due to the presence of the more polar oxirane group. Very large differences were found with respect to the oxidation rate of the different methyl esters. Methyl crepenynate was shown to oxidize extremely rapidly, whereas methyl vernoleate was very stable toward oxidation.

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Seed oils rich in linolenic acid as renewable feedstock for environment-friendly crosslinkers in powder coatings

Cited by 42 publications

References 14 publications

Resins and additives for powder coatings and alkyd paints, based on renewable resources

Resins and additives for powder coatings and alkyd paints, based on renewable resources

The influence of TDZ concentrations on in vitro growth and production of secondary metabolites by the shoot and callus culture of Lallemantia iberica

A study of fatty acid methyl esters with epoxy or alkyne functionalities

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