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selected from the group consisting of ethylenically unsaturated monomers and mixtures thereof to produce a polymer; preparing a pigmented aqueous basecoat con• taining the polymer; applying a transparent topcoat to the base• coat; and baking and curing the basecoat and the topcoat together. ..... COA'IIMI PIIOCDS U.S. Patent 6,001,427. Dec. 14, 1999 C.L. Breazeale, Franklin, Ind. A process for coating selected por• tions of a substrate using a pow• der transfer member. W-cuR..... XY ........ U.S. Patent 6,001,428. Dec. 14, 1999 J. Finter et al., assignors to Ciba Specialty Chemicals Corp., Tarrytown, N. Y. A solid powder coating composi• tion having a glass transition temperature (Tg) higher than 35·C, which becomes completely crosslinked upon exposure to ul• traviolet light in the molten state. ...S8 ... TOPCOAT ... PI.AS'I'IC8 U.S. Patent 6,001,469. Dec. 14, 1999 CA. Verardi et at., assignors to PPG Industries Ohio Inc., Cleveland A plastic article formed from a plastic material selected from the group consisting of thermoplastic olefins and reaction injected molding urethanes, the plastic ar• ticle being coated with a film of a primer composition deposited di• rectly onto a surface of the plastic article without the aid of flame or corona pretreatment, or the use of an adhesion promoter or tie coat, the primer composition compris• ing 5 to 45% by weight of resin solids of substantially saturated polyhydroxylated polydiene poly• mer having terminal hydroxyl groups; 10 to 50% ofresin solids of aminoplast crosslinking material; 5 to 85% of resin solids of a film• forming resin selected from the D;eember ZOOO group consisting of polyesters, acrylics, polyurethanes, and co• polymers and mixtures thereof; and solvent. AIIOIMp·· _ U.S. Patent 6.001.481. Dec. 14. 1999 G. Dearnaley and S.J. Lukezich. assignors to Southwest Research Institute, San Antonio, Texas An aluminum or aluminum alloy component comprising a surface converted to anodized aluminum, said anodized aluminum surface further comprising pores filled with a substance consisting essentially of a diamondlike carbon sealant. 'IWO-CO.., ...... YU..... caa ...... U.S. Patent 6.001,931. Dec. 14, 1999 M. Brahm et al.• assignors to Bayer AG, Leuerkusen, Germany A binder mixture for two-compo• nent polyurethane coating compo• sitions, which dries at room tem• perature, wherein the binder comprises a polyisocyanate com• ponent; a hydroxy-functional polyacrylate component; and op• tionally, reactive diluents. We've Bullt aBetter Mousetrap... ... and the world is a path to our doorl 'We're not 5u'llr1sed. People have discovered that the new U.S. government. free portal www.FIntGov.gov is online. Just point and cUck your way to www.FIntGov.gov and search more than 27 miUion US. government web pages. You can find the answers fast If you make your first click www.FIrstCov.JOV. ,..., ..... CM............ , .... Circle 047 on reader information card CADOII DIOJODI CLUIIIIMI PROCIISS u.s. Patent 6,004,400. Dec. 21. 1999 P. W. Bishop and AJ. Harrouer. assignors to Phillips W. Bishop. Chandler. Ariz. A method for cleaning contami• nant particles from a surface of a metal part including preliminar• ily cleaning with an abrasive ma• terial and then cleaning with fro• zen carbon dioxide pellets. - - __ 1o, F,.. r P.O. 801130 CARLSTADT. N.I 07072 Ptlone: (201)...,700. Fax: (20114JI.4U1 Circle 031 on reader information card 83

Powder coating process

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Page 1: Powder coating process

selected from the group consistingof ethylenically unsaturatedmonomers and mixtures thereofto produce a polymer; preparing apigmented aqueous basecoat con•taining the polymer; applying atransparent topcoat to the base•coat; and baking and curing thebasecoat and the topcoat together.

.....COA'IIMI PIIOCDSU.S. Patent 6,001,427. Dec. 14, 1999C.L. Breazeale, Franklin, Ind.A process for coating selected por•tions of a substrate using a pow•der transfer member.

W-cuR.....XY ........U.S. Patent 6,001,428. Dec. 14, 1999J. Finter et al., assignors to CibaSpecialty Chemicals Corp.,Tarrytown, N. Y.A solid powder coating composi•tion having a glass transitiontemperature (Tg) higher than35·C, which becomes completelycrosslinked upon exposure to ul•traviolet light in the molten state.

...S8...TOPCOAT ...PI.AS'I'IC8U.S. Patent 6,001,469. Dec. 14, 1999CA. Verardi et at., assignors to PPGIndustries Ohio Inc., ClevelandA plastic article formed from aplastic material selected from thegroup consisting of thermoplasticolefins and reaction injectedmolding urethanes, the plastic ar•ticle being coated with a film of aprimer composition deposited di•rectly onto a surface of the plasticarticle without the aid of flame orcorona pretreatment, or the use ofan adhesion promoter or tie coat,the primer composition compris•ing 5 to 45% by weight of resinsolids of substantially saturatedpolyhydroxylated polydiene poly•mer having terminal hydroxylgroups; 10 to 50% ofresin solids ofaminoplast crosslinking material;5 to 85% of resin solids of a film•forming resin selected from the

D;eember ZOOO

group consisting of polyesters,acrylics, polyurethanes, and co•polymers and mixtures thereof;and solvent.

AIIOIMp·· _

U.S. Patent 6.001.481. Dec. 14. 1999G. Dearnaley and S.J. Lukezich.assignors to Southwest ResearchInstitute, San Antonio, Texas

An aluminum or aluminum alloycomponent comprising a surfaceconverted to anodized aluminum,said anodized aluminum surfacefurther comprising pores filled witha substance consisting essentiallyof a diamondlike carbon sealant.

'IWO-CO.., ......YU.....caa......U.S. Patent 6.001,931. Dec. 14, 1999M. Brahm et al.• assignors to BayerAG, Leuerkusen, Germany

A binder mixture for two-compo•nent polyurethane coating compo•sitions, which dries at room tem•perature, wherein the bindercomprises a polyisocyanate com•ponent; a hydroxy-functionalpolyacrylate component; and op•tionally, reactive diluents.

We've BulltaBetterMousetrap...

... and the world is beat1~a path toour doorl 'We're not 5u'llr1sed. Peoplehave discovered that the new U.S.government. free portalwww.FIntGov.gov is online. Justpoint and cUck your way towww.FIntGov.gov and i~tantly

search more than 27 miUion US.government web pages. You can findthe answers fast Ifyou make your firstclick www.FIrstCov.JOV.

~RSTGOV,..., .....CM............,....

Circle 047 on reader information card

CADOII DIOJODI CLUIIIIMIPROCIISSu.s. Patent 6,004,400. Dec. 21. 1999P. W. Bishop and AJ. Harrouer.assignors to Phillips W. Bishop.Chandler. Ariz.

A method for cleaning contami•nant particles from a surface of ametal part including preliminar•ily cleaning with an abrasive ma•terial and then cleaning with fro•zen carbon dioxide pellets.

- -

__ W~;tfl 1o, F,.. 8'OCh~~~ ~

~."

r ~'

P.O. 801130CARLSTADT. N.I 07072

Ptlone: (201)...,700. Fax: (20114JI.4U1

Circle 031 on reader information card

83