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Jotun builds two plants in India
F O C U S and glossy finish, the applications of powder coating in the automobile industry have so far been limited to underbody and interior trim components, and to some exterior trim parts such as steel and aluminium car wheels. A vast automotive topcoat market awaits a viable powder coating process. This is the theme of an article by Shah et al. One of the reasons behind these aesthetic problems is the use of 30µm or larger coarse particles in the present powder coating processes. While these powders have excellent flow properties, this can lead to inferior surface coating qualities, such as the orange peel effect. The use of fine powders, 10-20 µm in size, if properly fluidized, can produce a very smooth coating surface. This could enable the powder coating to enter the big market of automotive clear top coating and other high-end surface coating markets. The research team at the University of Western Ontario has developed a novel technique, which can effectively fluidize very fine powder particles. It is very important to understand the air and particle flow fields inside the coating booth and the effect of reducing particle size on the coating process. Numerical simulation of the coating can provide significant insight into the process and predict the effect of different operating parameters, such as air flow rate, powder spray rate, applied corona charge voltage, and particle size, on the first pass transfer efficiency (FPTE) and the coating quality. The primary goal of a coating application is to obtain high FPTE while meeting the aesthetic requirements. The electrostatic field plays a very important role in powder coating. Other researchers have examined the electrical characteristics of electrostatic painting, taking into consideration the space charge, due to the presence of free ions, and have found that the space charge
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tends to increase the deposition field, and also cause the spray pattern to expand. Single particle trajectory studies of a powder coating system for a given charge-to-mass ratio, particle diameter and initial position, showed that as the charge-tomass ratio increased, the particle trajectory spread further out in the radial direction. Other studies have examined the influence of the gas flow field, electrostatic field and turbulent dispersion on the particle trajectories. In this article, coating powders of different sizes were used to carry out the numerical simulations and the simulation results were post processed to obtain the FPTE and coating quality for the different sized powders. It was found that the air flow rate and powder transfer efficiency are strongly coupled for all particle sizes. For larger size particles, the increase in the air flow rate initially increases the transfer efficiency, but very high air flow rate eventually creates turbulence, generating dispersion near the part and adversely affecting the powder transfer efficiency and coating quality. Finer powder requires lower air flow for higher transfer efficiency. If particle charging is assumed not to vary with the powder flow rate, the powder spray rate does not appear to affect the powder transfer efficiency except for fine powder at a low spray rate. Fine powder gives better coating quality but appears to potentially lead to a lower overall powder transfer efficiency. However, the fine powder compensates such a loss in overall powder transfer efficiency by providing better control over the coating film thickness so that the actual amount of powder required to coat the same surface with the same minimum film thickness becomes less for smaller powders. Article entitled “Comparison of Electrostatic Fine Powder Coating and Coarse Powder Coating by Numerical Simulations” by
C O AT I N G S U Shah, C Zhang, and J Zhu of the University of Western Ontario, London, Ontario, Canada published in the Journal of Electrostatics, Jun 2006, 64 (6), 345-54
INDUSTRY NEWS Joint venture fully acquired: Akzo Nobel gains control of Akzo Nobel Chang Cheng Coatings Akzo Nobel has gained full control of its Asian Akzo Nobel Chang Cheng Coatings joint venture after acquiring the remaining shares. The transaction, which involved purchasing the outstanding 16.66% shares owned by main partner Chang Cheng Securities, means that the company now wholly owns its powder coatings operations in China, Taiwan and Hong Kong. The deal will help Akzo Nobel to strengthen its position in the fastest growing powder market in the world. The transaction, which is subject to regulatory approvals, involves a total of six sites, four of which are located in China. It is expected that the deal will be completed within the next six to eight weeks. Akzo Nobel News and Views, 30 May 2006, (Akzo Nobel nv, PO Box 9300, 6800 SB Arnhem, the Netherlands, tel: +31 26 3665760, fax: +31 26 3665850, website: http://newsandviews.akzonobel.com)
Jotun builds two plants in India The Norwegian coatings company Jotun is to invest NKR 120 M in building 2 plants in India. India has ambitions to construct a number of ships and approved shipyards, which are already Jotun customers, are ready to establish their presence in that country. Jotun has already earmarked a site at Pune, which is several hours from Mumbai. Construction work on the plants should start in 2007 and completion is scheduled for 2Q 2008. It will have a workforce of
JULY 2006
F O C U S around 150 and will produce paint and powder lacquer. Jotun currently has a turnover of around NKR 100 M in India where the paints market is said to be worth around $2 bn. Jotun is hoping for an Indian turnover of around NKR 600 M within 10 years. Dagens Naeringsliv, 19 Jun 2006, 117 (137), 19 (in Norwegian)
Chemicals divestment completed: Akzo Nobel Akzo Nobel has completed the divestment of its Ink and Adhesive Resins business to Hexion Specialty Chemicals for €88 M free of cash and debt. Hexion, the world’s largest producer of thermoset resins, has acquired all assets of the business and all employees (around 560) have transferred to the new owner. Akzo Nobel News and Views, 1 Jun 2006, (Akzo Nobel nv, PO Box 9300, 6800 SB Arnhem, the Netherlands, tel: +31 26 3665760, fax: +31 26 3665850, website: http://newsandviews.akzonobel.com)
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Investments: DuPont begins construction work on a new coatings production facility DuPont is currently building a new factory in China for the production of coatings. The plant will be situated in the Jiading district of Shanghai and is scheduled to come on-stream at the end of 2007. Around 250 new jobs will be created at the Jiading facility, which will manufacture coatings for the automotive segment as well as for industrial applications. This facility represents the tenth investment by DuPont in the Chinese coatings segment. In addition to this, DuPont invested $20 M in a factory for automotive coatings in Changchun, which the company acquired in 2004. Farbe und Lack, 5 Jun 2006, 112 (6), 8 (in German)
Asia: BASF invests €13 M in a competence centre for nanostructured surfaces
German company BASF Coatings plans to relocate its automotive repair coatings business in Great Britain from Didcot to the site in Deeside near Chester. All three divisions will be combined under one roof. The Deeside facility is BASF Coating’s headquarters in the UK. The relocation will be completed by Jul 2006. The technical services, customer services, the staff of sales representatives, distribution, technology and key account management activities will remain unchanged. In addition to this, BASF Coatings plans to introduce a comprehensive training programme at specific locations across Great Britain.
German BASF Group inaugurated its first research centre for nanotechnology in Asia in May 2006. The group plans to invest €13 M in the centre in Singapore (China) until 2008. The centre will house a total of 20 employees, primarily scientists and laboratory technicians. The competence centre in Singapore will focus on the modification of nanostructured surfaces, for example to find a solution for biofouling on ship hulls. There are currently no alternatives to the use of biocides, but developments in nanotechnology could represent an innovative and environmentally-compatible solution. The project aims to understand the mechanism to explain the growth of microorganisms on surfaces in oceanic waters. In the next step, the company aims to develop biocidefree, nanostructured surfaces, which will minimise the physical adhesion of oceanic organisms on surfaces.
Farbe und Lack, 5 Jun 2006, 112 (6), 8 (in German)
Farbe und Lack, 5 Jun 2006, 112 (6), 17 (in German)
Restructuring: everything under one roof: BASF Coatings combines British automotive repair coatings activities
JULY 2006
C O AT I N G S Paint and coating top 20: overview of Germany’s leading manufacturers A table lists the 20 leading manufacturers of paints and coatings in Germany in 2005. The list is headed by BASF, followed by Akzo Nobel, DuPont, DAW, Sto, Ostendorf, Altana, Brillux, PPG and Sika. The table lists turnover figures for 2005 and the share of turnover attributed to the production of paints, coatings and related products. The table also gives the workforce for each company. Farbe und Lack, 5 Jun 2006, 112 (6), 68 (in German)
Top 20 paints and coatings manufacturers in Germany in 2005: rank 15: specialist for plastics coatings and powder coatings German company Woerwag in Stuttgart manufactures liquid and powder coatings for general applications and use in the automotive industry. The company is represented in France, Poland, Switzerland, Spain, China, South Africa and the US. Plastic coatings find applications in the coating of plastic automotive components. The company is a leading supplier of water-based coatings in this segment. Around 60% of total turnover is generated with plastics coatings. Woerwag achieved a turnover of €126 M in 2005 (€129 M in 2004) which a workforce of 620. Farbe und Lack, 5 Jun 2006, 112 (6), 74 (in German)
Top 20 paints and coatings manufacturers in Germany in 2005: rank 19: major focus on powder coatings German company Emil Frei GmbH & Co in Braeunlingen primarily focuses on powder coatings, which generate around 50% of turnover. In addition to this, the company develops and manufactures industrial coatings and electro-dip coatings. Around 35% of production is exported. 5
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tends to increase the deposition field, and also cause the spray pattern to expand. Single particle trajectory studies of a powder coating system for a given charge-to-mass ratio, particle diameter and initial position, showed that as the charge-tomass ratio increased, the particle trajectory spread further out in the radial direction. Other studies have examined the influence of the gas flow field, electrostatic field and turbulent dispersion on the particle trajectories. In this article, coating powders of different sizes were used to carry out the numerical simulations and the simulation results were post processed to obtain the FPTE and coating quality for the different sized powders. It was found that the air flow rate and powder transfer efficiency are strongly coupled for all particle sizes. For larger size particles, the increase in the air flow rate initially increases the transfer efficiency, but very high air flow rate eventually creates turbulence, generating dispersion near the part and adversely affecting the powder transfer efficiency and coating quality. Finer powder requires lower air flow for higher transfer efficiency. If particle charging is assumed not to vary with the powder flow rate, the powder spray rate does not appear to affect the powder transfer efficiency except for fine powder at a low spray rate. Fine powder gives better coating quality but appears to potentially lead to a lower overall powder transfer efficiency. However, the fine powder compensates such a loss in overall powder transfer efficiency by providing better control over the coating film thickness so that the actual amount of powder required to coat the same surface with the same minimum film thickness becomes less for smaller powders. Article entitled “Comparison of Electrostatic Fine Powder Coating and Coarse Powder Coating by Numerical Simulations” by
C O AT I N G S U Shah, C Zhang, and J Zhu of the University of Western Ontario, London, Ontario, Canada published in the Journal of Electrostatics, Jun 2006, 64 (6), 345-54
INDUSTRY NEWS Joint venture fully acquired: Akzo Nobel gains control of Akzo Nobel Chang Cheng Coatings Akzo Nobel has gained full control of its Asian Akzo Nobel Chang Cheng Coatings joint venture after acquiring the remaining shares. The transaction, which involved purchasing the outstanding 16.66% shares owned by main partner Chang Cheng Securities, means that the company now wholly owns its powder coatings operations in China, Taiwan and Hong Kong. The deal will help Akzo Nobel to strengthen its position in the fastest growing powder market in the world. The transaction, which is subject to regulatory approvals, involves a total of six sites, four of which are located in China. It is expected that the deal will be completed within the next six to eight weeks. Akzo Nobel News and Views, 30 May 2006, (Akzo Nobel nv, PO Box 9300, 6800 SB Arnhem, the Netherlands, tel: +31 26 3665760, fax: +31 26 3665850, website: http://newsandviews.akzonobel.com)
Jotun builds two plants in India The Norwegian coatings company Jotun is to invest NKR 120 M in building 2 plants in India. India has ambitions to construct a number of ships and approved shipyards, which are already Jotun customers, are ready to establish their presence in that country. Jotun has already earmarked a site at Pune, which is several hours from Mumbai. Construction work on the plants should start in 2007 and completion is scheduled for 2Q 2008. It will have a workforce of
JULY 2006
F O C U S around 150 and will produce paint and powder lacquer. Jotun currently has a turnover of around NKR 100 M in India where the paints market is said to be worth around $2 bn. Jotun is hoping for an Indian turnover of around NKR 600 M within 10 years. Dagens Naeringsliv, 19 Jun 2006, 117 (137), 19 (in Norwegian)
Chemicals divestment completed: Akzo Nobel Akzo Nobel has completed the divestment of its Ink and Adhesive Resins business to Hexion Specialty Chemicals for €88 M free of cash and debt. Hexion, the world’s largest producer of thermoset resins, has acquired all assets of the business and all employees (around 560) have transferred to the new owner. Akzo Nobel News and Views, 1 Jun 2006, (Akzo Nobel nv, PO Box 9300, 6800 SB Arnhem, the Netherlands, tel: +31 26 3665760, fax: +31 26 3665850, website: http://newsandviews.akzonobel.com)
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Investments: DuPont begins construction work on a new coatings production facility DuPont is currently building a new factory in China for the production of coatings. The plant will be situated in the Jiading district of Shanghai and is scheduled to come on-stream at the end of 2007. Around 250 new jobs will be created at the Jiading facility, which will manufacture coatings for the automotive segment as well as for industrial applications. This facility represents the tenth investment by DuPont in the Chinese coatings segment. In addition to this, DuPont invested $20 M in a factory for automotive coatings in Changchun, which the company acquired in 2004. Farbe und Lack, 5 Jun 2006, 112 (6), 8 (in German)
Asia: BASF invests €13 M in a competence centre for nanostructured surfaces
German company BASF Coatings plans to relocate its automotive repair coatings business in Great Britain from Didcot to the site in Deeside near Chester. All three divisions will be combined under one roof. The Deeside facility is BASF Coating’s headquarters in the UK. The relocation will be completed by Jul 2006. The technical services, customer services, the staff of sales representatives, distribution, technology and key account management activities will remain unchanged. In addition to this, BASF Coatings plans to introduce a comprehensive training programme at specific locations across Great Britain.
German BASF Group inaugurated its first research centre for nanotechnology in Asia in May 2006. The group plans to invest €13 M in the centre in Singapore (China) until 2008. The centre will house a total of 20 employees, primarily scientists and laboratory technicians. The competence centre in Singapore will focus on the modification of nanostructured surfaces, for example to find a solution for biofouling on ship hulls. There are currently no alternatives to the use of biocides, but developments in nanotechnology could represent an innovative and environmentally-compatible solution. The project aims to understand the mechanism to explain the growth of microorganisms on surfaces in oceanic waters. In the next step, the company aims to develop biocidefree, nanostructured surfaces, which will minimise the physical adhesion of oceanic organisms on surfaces.
Farbe und Lack, 5 Jun 2006, 112 (6), 8 (in German)
Farbe und Lack, 5 Jun 2006, 112 (6), 17 (in German)
Restructuring: everything under one roof: BASF Coatings combines British automotive repair coatings activities
JULY 2006
C O AT I N G S Paint and coating top 20: overview of Germany’s leading manufacturers A table lists the 20 leading manufacturers of paints and coatings in Germany in 2005. The list is headed by BASF, followed by Akzo Nobel, DuPont, DAW, Sto, Ostendorf, Altana, Brillux, PPG and Sika. The table lists turnover figures for 2005 and the share of turnover attributed to the production of paints, coatings and related products. The table also gives the workforce for each company. Farbe und Lack, 5 Jun 2006, 112 (6), 68 (in German)
Top 20 paints and coatings manufacturers in Germany in 2005: rank 15: specialist for plastics coatings and powder coatings German company Woerwag in Stuttgart manufactures liquid and powder coatings for general applications and use in the automotive industry. The company is represented in France, Poland, Switzerland, Spain, China, South Africa and the US. Plastic coatings find applications in the coating of plastic automotive components. The company is a leading supplier of water-based coatings in this segment. Around 60% of total turnover is generated with plastics coatings. Woerwag achieved a turnover of €126 M in 2005 (€129 M in 2004) which a workforce of 620. Farbe und Lack, 5 Jun 2006, 112 (6), 74 (in German)
Top 20 paints and coatings manufacturers in Germany in 2005: rank 19: major focus on powder coatings German company Emil Frei GmbH & Co in Braeunlingen primarily focuses on powder coatings, which generate around 50% of turnover. In addition to this, the company develops and manufactures industrial coatings and electro-dip coatings. Around 35% of production is exported. 5