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Granted in theMetal Finishing FieldPrinted copies of patents are furnished by the Patent and Trademark Office for $3.00 each.Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231.
PREPARING PRECOATEDALUMINUM ALLOY ARTICLESU.S. Patent 5,922,472. July 13, 1999S.C. Keener, assignor to McDonnellDouglas Corp., Long Beach, Calif
An aluminum alloy aircraft article prepared by providing an aluminum alloy aircraft article precursor that is not in its final heattrea ted state; anodizing thearticle precursor; providing a curable phenolic resin-containing organic coating material, the coating material having a nonvolatileportion that is predominantly organic and is curable at about aheat-treatment temperature ofthe aluminum alloy aircraft article precursor; applying the phenolic resin-containing organiccoating material to the aluminum-alloy aircraft article precursor; heat treating the phenolicresin-containing coated aluminum alloy aircraft article precursor to its final heat-treated stateat the heat-treatment temperature and for a time sufficient toheat treat the aluminum and curethe organic coating; and obtaininga coated aluminum alloy aircraftarticle having a shear strengthapproximately equal to or greaterthan 24,000 psi.
DUAL THERMAL ANDULTRA~OLET~URABLEPOWDER
COAnNGSU.S. Patent 5,922,473. July 1.'3, 1999J. Muthiah et al., assignors toMorton International lnc., Chicago
A dual thermal and radiationcurable powder coating composition, which is a composition inparticulate form that consists essentially of a melt blend of an
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ethylenically unsaturated baseresin selected from unsaturatedpolyesters, unsaturated polyacrylates, unsaturated polymethacrylates, and mixtures thereof; a second resin copolymerizable withthe base resin having an ethylenically unsaturated functionalgroup selected from vinyl ether,acrylate, methacrylate, and allylester groups, and mixtures thereof; a photoinitiator effective to enable radiation curing of the ethylenically unsaturated resins; and athermal initiator effective to enable thermal curing of the ethylenically unsaturated resins whilenot causing substantial curingduring melt blending.
POLYISnR COAnNGCOMPOSlnONU.S. Patent 5,922,474. Jul.)' 1.1. 1999T. Kuo, assignor to EastmanChemical Co., Kingsport, Tenn.
A solventless coating based onlow-viscosity polyesters.
COLOR PLUS CLIARCOATU.S. Patent 5,922,475. July 1.1, 1999S. V. Barancyk and L-A. Humbert,assignors to PPC Industries Ohiolnc., Cleveland
Color-plus-clear composite coating compositions containing alkylolated or etherified carbamatefunctional polymers.
MULnLAYER COAnNGu.s. Patent 5,922,478. July 1:1. 1!J99R.P. Welty et al .. assignors to MuscoCorp., Taylor, Mich.
An article comprising a multilayer coated substrate comprisingat least one layer comprised ofnickel; a layer comprised of
chrome; a layer comprised of zirconium, titanium, or zirconiumtitanium alloy; a sandwich layercomprised of a plurality of alternating layers comprised of a zirconium compound, a titaniumcompound, or a zirconium-titanium alloy compound and zirconium, titanium or zirconiumtitanium alloy, wherein the layerscomprised of a zirconium compound, a titanium compound, or azirconium-titanium alloy compound alternate with the layerscomprised of zirconium, titanium,or zirconium-titanium alloy; alayer comprised of a zirconiumcompound, a titanium compound,or a zirconium-titanium alloycompound; and a layer comprisedof zirconium oxide, titanium oxide, or zirconium-titanium alloyoxide.
AQUIOUS CUANINGCOMPOsmONu.s. Patent 5,922,665. ,July 1.'3, 1999A. Liu, assignor to .1M Co.. St. Paul,Minn.
A composition for removing hydrophobic soils comprising a nonionic surfactant; a very slightlywater-soluble organic solvent; water; and an optional additive;wherein the nonionic surfactantand the slightly water-soluble solvent are each in an amount sufficient to achieve a haze point inthe composition such that thecomposition of the nonionic surfactant titrated with the veryslightly water-soluble organic solvent becomes semitransparent atroom temperature.
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