merck adds new effect pigment

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Bayer reduces carbon nanotube production costs Plastics Additives & Compounding November/December 2005 10 News MATERIALS German company Merck has introduced the Colorstream ® T10-04 Lapis Sunlight multicolour effect pigments. The company says that the colour travel extends from gold to silver green and deep blue. The new pigment joins the four other Colorstream effect pigments that have already been introduced. According to Merck, Colorstream Lapis Sunlight is based on synthetically produced transparent silicon dioxide platelets that are coated with titanium dioxide. The perception of the colour changes depending on the angle of observation. The company adds that the colour changes are so intensive that they can be easily perceived even under unfavourable light conditions. Merck says that the new pigments are suitable for a number of applications, including thermoplastics. The company adds that the new Colorstream pigment offers a number of styling possibilities due to its high transparency - for example, in combination with other organic or inorganic colourants, as well as other effect pigments. Contact: Merck KGaA Tel: +49 6258 120 Website: www.merck.de Merck adds new effect pigment High-quality carbon nanotubes (CNT) can now be manufactured on an industrial scale at considerably lower cost than ever before, claims Bayer MaterialScience AG. The company says that it has plans to market the nano-sized materials worldwide under the trade name Baytubes ® . The new process for manufacturing Baytubes was developed in collaboration with Bayer Technology Services GmbH, a Bayer Group service company with expertise in process technology. Until now, the high price of up to 1,000.00 per kilogram and the fluctuating production quality prevented more widespread use of nanotubes. "For the first time, we can achieve consistent material purity of over 99% and significantly reduce manufacturing costs," says Martin Schmid, head of the Carbon Nanotubes project at Bayer MaterialScience. "Adding just small quantities of Baytubes can make a plastic car fender so electrically conductive that it can be painted without any further pre-treatment, using environmentally friendly waterborne or powder coatings. In a similar manner, we can make films for antistatic packaging materials, such as those used for sophisticated electronic components." Another possibility is the electromagnetic interference (EMI) shielding of computer and mobile telephone housings. In the future, CNTs could also improve the thermal conductivity of ceramic components in turbines. "Baytubes brand carbon nanotubes are multi-walled tubes comprising up to 15 graphite layers. Chemically speaking, the material is identical to pencil lead," says Dr. Sigurd Buchholz, project head at Bayer Technology Services. "The nanotubes have a maximum mean diameter of 50 nanometres, meaning they are more than 10,000 times thinner than a human hair. If one of these tubes were enlarged to the size of a drinking straw, it would be up to 250 meters long." Custom-made CNTs with different diameters, lengths and wall thicknesses can be produced for any application by selecting the corresponding catalyst. Contact: Bayer MaterialScience AG Website: www.baytubes.de. Nanocyl adds to nanotube range Belgian company Nanocyl has introduced the NC9000 series of carbon nanotubes. This Nanocyl patented process, originally developed at the department of Prof. Philippe Dubois of the University of Mons-Hainaut, is the basis for the production of this new line of products. The company says that the NC9000 series offers a high-concentration of pre- dispersed carbon nanotubes in polymers - enabling easy handling and dispersion of the carbon nanotube for a variety of industrial applications. The new line of products includes a grade based on high- density polyethylene and is sold as Nanocyl ® 9000. Available in concentrations up to 50%, Nanocyl adds that it is currently developing this blend in other plastics - including engineered polymers. According to the company, the first potential application for the NC9000 series nanotube composite is as an additive for thermoplastics materials where antistatic or conductive properties are required. Industry sectors concerned most immediately for this product line are the automotive, electronics and chemical processing industries. Examples of applications include silicon wafer handling equipment and automotive fuel systems. According to Olivier Decroly, global business development manager at Nanocyl: "After an initial trial period during the first quarter of 2006, Nanocyl will scale-up the production volume to meet customer needs. This is a major step forward in the further development of the carbon nanotubes supply chain. We are confident that this unique product line will help the industry to adopt the carbon nanotubes." Contact: Nanocyl S.A. Website: www.nanocyl.com

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Bayer reduces carbon nanotubeproduction costs

Plastics Additives & Compounding November/December 2005

10

NewsMATERIALS

German company Merck hasintroduced the Colorstream®

T10-04 Lapis Sunlightmulticolour effect pigments.The company says that thecolour travel extends fromgold to silver green and deepblue.The new pigment joins thefour other Colorstream effectpigments that have alreadybeen introduced.According to Merck,Colorstream Lapis Sunlight isbased on syntheticallyproduced transparent silicondioxide platelets that arecoated with titanium dioxide.The perception of the colourchanges depending on theangle of observation. Thecompany adds that the colourchanges are so intensive thatthey can be easily perceivedeven under unfavourable lightconditions.Merck says that the newpigments are suitable for anumber of applications,including thermoplastics.The company adds that thenew Colorstream pigmentoffers a number of stylingpossibilities due to its hightransparency - for example, incombination with otherorganic or inorganiccolourants, as well as othereffect pigments.

Contact:Merck KGaATel: +49 6258 120Website: www.merck.de

Merckadds neweffectpigment

High-quality carbon nanotubes(CNT) can now bemanufactured on an industrialscale at considerably lower costthan ever before, claims BayerMaterialScience AG. Thecompany says that it has plansto market the nano-sizedmaterials worldwide under thetrade name Baytubes®. Thenew process for manufacturingBaytubes was developed incollaboration with BayerTechnology Services GmbH, aBayer Group service companywith expertise in processtechnology.Until now, the high price of upto �1,000.00 per kilogram andthe fluctuating productionquality prevented morewidespread use of nanotubes."For the first time, we canachieve consistent materialpurity of over 99% and

significantly reducemanufacturing costs," saysMartin Schmid, head of theCarbon Nanotubes project atBayer MaterialScience. "Addingjust small quantities ofBaytubes can make a plastic carfender so electrically conductivethat it can be painted withoutany further pre-treatment,using environmentally friendlywaterborne or powder coatings.In a similar manner, we canmake films for antistaticpackaging materials, such asthose used for sophisticatedelectronic components."Another possibility is theelectromagnetic interference(EMI) shielding of computerand mobile telephone housings.In the future, CNTs could alsoimprove the thermalconductivity of ceramiccomponents in turbines.

"Baytubes brand carbonnanotubes are multi-walledtubes comprising up to 15graphite layers. Chemicallyspeaking, the material isidentical to pencil lead," says Dr.Sigurd Buchholz, project head atBayer Technology Services."The nanotubes have amaximum mean diameter of 50nanometres, meaning they aremore than 10,000 times thinnerthan a human hair. If one ofthese tubes were enlarged to thesize of a drinking straw, it wouldbe up to 250 meters long."Custom-made CNTs withdifferent diameters, lengths andwall thicknesses can be producedfor any application by selectingthe corresponding catalyst.

Contact:Bayer MaterialScience AGWebsite: www.baytubes.de.

Nanocyl adds to nanotube rangeBelgian company Nanocyl hasintroduced the NC9000 seriesof carbon nanotubes. ThisNanocyl patented process,originally developed at thedepartment of Prof. PhilippeDubois of the University ofMons-Hainaut, is the basis forthe production of this new lineof products. The company saysthat the NC9000 series offers ahigh-concentration of pre-dispersed carbon nanotubes inpolymers - enabling easyhandling and dispersion of thecarbon nanotube for a variety ofindustrial applications. The new line of productsincludes a grade based on high-density polyethylene and is sold

as Nanocyl® 9000. Available inconcentrations up to 50%,Nanocyl adds that it is currentlydeveloping this blend in otherplastics - including engineeredpolymers.According to the company, thefirst potential application forthe NC9000 series nanotubecomposite is as an additive forthermoplastics materials whereantistatic or conductiveproperties are required.Industry sectors concernedmost immediately for thisproduct line are theautomotive, electronics andchemical processing industries.Examples of applicationsinclude silicon wafer handling

equipment and automotive fuelsystems.According to Olivier Decroly,global business developmentmanager at Nanocyl: "After aninitial trial period during thefirst quarter of 2006, Nanocylwill scale-up the productionvolume to meet customerneeds. This is a major stepforward in the furtherdevelopment of the carbonnanotubes supply chain. We areconfident that this uniqueproduct line will help theindustry to adopt the carbonnanotubes."Contact:Nanocyl S.A.Website: www.nanocyl.com