high performance rutile yellow pigment

AUGUST 2007 3

F O C U S O N P O W D E R C O A T I N G S

The formulation for a low costversion capable of curing at130°C for 30 minutes and thisgives a smoothness assessmentof 3 upon storage at 40°C for twoweeks, with the mechanicalproperties remaining goodthroughout this period.

In conclusion the paper isclaimed to have demonstratedthat the combination of catalyst,epoxide and acid reactstoichiometrically. The catalystcomposition can be significantlyoptimized. Some resins are betterthan others. LTC systems withgood storage stability are areality.

Paper entitled “Legal Loophole in the Law ofNature? Highly Reactive but Storage StablePowder Coatings” by Emmanoull Spyrou ofDegussa GmbH was presented at the recentNurnberg Congress held on 7-9 May 2007.Conference proceedings are available in CDformat from the organizers: VincentzNetwork, website: http://www.coatings.de,fax: +49 511 9910-279, tel: +49 511 9910-274

High performance rutile yellowpigment

Optimizing the well-known chromeand nickel titanium yellowchemistries, which exhibitoutstanding fastness anddurability has created a new classof pigments offering a versatiletool for formulating economic andinnovative coatings. Newformulations with this pigment areclaimed to result in 25-30%savings while offering improvedproduct performance. This isaccomplished by proprietarytechnology to micronize thepigments, whilst retaining theirexcellent weather and light-fastness and excellenttemperature resistance. Themicronization process produces anarrow particle size distribution ofspherical-shaped pigmentparticles, which enhances hidingpower and opacity as wellsignificantly reduced abrasiveness.The high performance of thesetypes of inorganic pigments isshown when they are used incombination with organic pigmentswhere the hiding power andopacity of the inorganic pigment

are crucial. The use of this rutileyellow pigment allows substitutionof the super durable titaniumdioxide grades giving potentialcost savings and the additionalbenefit of considerableimprovements in the weatherfastness of the organic pigments.This improvement is based on thedrastically reduced photocatalyticeffect and absorption of thecritical electromagnetic short waveradiation when compared to theperformance of super-durabletitanium dioxide grades and thediminished effect on thedegradation of the organicpigment. Additionally, thecontrolled particle size andspherical shape of rutile yellowpigments gives higher glossvalues and improved brilliance.Easier processing and handling isanother important factor.

An article by Frischmann andKlose of Heubach GmbH providesformulations for troublesomeformulations such as SignalYellow (RAL 1003), and SalmonOrange (RAL 2012) giving highereconomies with a reduction in theuse of additives.

Article entitled “Does Yellow beat White?” byDr Lutz Frischmann and Dr Stefanie Klosewas published in the PCI Journal, 23 (7),106-108, Jul 2007

INDUSTRYNEWS

Asia Paints in industrial sectormove

India’s Asian Paints is targeting toincrease its industrial paintssegment, which contributes lessthan 10% of the company’s Rup36,700 M/y revenue. Thecompany will establish a Rup 500M R&D centre to developproducts for the industrial sector.It is also trying to attract suchOEMs as Mahindra Renault andTata Motors-Fiat to join its currentcustomers GM and Hyundai.

APCJ, Asia Pacific Coatings Journal, Jun2007, 20 (3), 6

Highly durable fluorine powderpaint to see launch in Japan

Yokohama Chemicals, a traderbased in Tokyo, Japan, intends tobring into Japan the ultra-weatherproof fluorine powderpaint developed by Jotun PowderCoatings (Thailand) Ltd using itstrifluoride technology. The paint,which is guaranteed for 30 yearswhen coated on construction-usealuminium-extruded products andaluminium panels, renders highresistance against intenseultraviolet radiation and moisture,as well as excellent antifoulingproperties, aesthetics and long-lasting durability. Also to bemarketed for use onmanufactured goods, theweatherproof product exhibitsoutstanding performance whenapplied on the outer and innerwalls of skyscrapers and onseaside buildings, which areprone to salt-inflicted damage.The paint is also envisioned asan alternative to solvent-basedfluorine paints and is targeted atmarine structures, airport facilitiesand chemical plants that needsuperb resistance to corrosion.Yokohama is forecasting sales of100 tonnes/y after three years forthe fluorine powder paint.

Japan Chemical Week, 28 Jun 2007, 48(2422), 2

Sherwin Williams 2006: GlobalGroup

For its fiscal 2006 (period ends31 Dec 2006), the Global Groupof The Sherwin-Williams Co hasreported sales of $1593 M ($1440M for its fiscal 2005), incomebefore taxes and minorityinterests of $130 M ($103 M),capital expenditure of $38 M ($16M), and depreciation of $25 M($26 M). Sherwin-Williamsproducts are currently available inmore than 20 countries worldwide.In addition to the company’s well-established operations incountries like Brazil, Argentina,Chile, Mexico and the UK, thecompany’s presence in SoutheastAsia continues to grow. The