epoxy powder coating
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PATENTS .: ,~i:.'~ _
Granted in the Metal Finishing Field
FILLER COMPONENT FOR USE INAQUEOUSBASECOATSU.S. Patent 5,968,655. Oct. 19, 1999M. Hartung et al., assignors toBASF Coatings AG, MuensterHiltrup, Germany
A process for applying a composite coating to a substrate comprising preparing a filler componentof 10 to 70% by weight of an aqueous polyurethane dispersion,wherein the dispersion is from 10to 60% by weight polyurethaneresin and 5 to 40% by weight of atleast one filler; preparing a fillerbasecoat composition, comprising10 to 70% by weight filler component and 90 to 30% by weight of aportion of an aqueous basecoatcomposition; applying the fillerbasecoat in a first layer on thesubstrate; applying the aqueousbasecoat composition in a secondlayer; applying a clearcoat in athird layer; and curing the coating layers together.
MIXED SOLVENT CLEANINGCOMPOSITIONU.S. Patent 5,968,882. Oct. 19, 1999H. Matsuhisa and T. Nakamura,assignors to Canon, Tokyo
A nonflammable mixed solventcomposition comprising 5 to 35%by weight of a completely fluorinated organic compound selectedfrom the group consisting of perfluoropentane, perfluorohexaneand perfluoroheptane; 20 to 65%of a partially fluorinated aromaticorganic compound, wherein saidpartially fluorinated aromatic organic compound contains no halogen atom other than fluorine; and18 to 47.5% of an unhalogenatedhydrocarbon compound.
ANTICORROSIVE COATINGCOMPOSITION
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U.S. Patent 5,969,019. Oct. 19, 1999H. Kanai and T. Shimakura,assignors to Nippon Paint Co., Ltd.,Osaka, Japan and Nippon SteelCorp., Tokyo
An anticorrosive coating composition, which comprises thiocarbonyl group-containing compounds, phosphoric acid, orphosphates, and aqueous resinsin water, wherein the amounts ofthe thiocarbonyl group-containing compounds and the phosphoric acid or phosphates are 0.2 to50 g and 0.1 to 5 g (in terms ofphosphate ions) respectivelybased on one liter of the totalamount of the aqueous resins andwater.
WATERBORNE COAnNGCOMPOSITIONU.S. Patent 5,969,030. Oct. 19, 1999S. Grandhee, assignor to BASFCorp., Southfield, Mich.
A waterborne coating compositioncomprising hydrophobically modified emulsion polymer, whereinthe emulsion polymer is preparedby a core-shell polymerizationprocess and at least one compound selected from the groupconsisting of consisting of plasticizers, crosslinking agents, pigments, solvents, and mixturesthereof.
EPOXYPOWDER COATINGU.S. Patent 5,969,043. Oct. 19, 1999R. Maruta et al., assignors to ShellOil Co., Houston, Texas
An epoxy resin power coatingcomposition, which comprises 40to 95 parts by weight of a solidepoxy resin having at least 2 epoxy groups in a molecule and 5 to60 parts by weight of an epoxidized polydiene polymer.
COLORED COATING COMPOSITIONU.S. Patent 5,969,048. Oct. 19, 1999E. Ito et al., assignors to NipponPaint Co., Ltd., Osaka, Japan
A colored coating compositioncomprising 5 to 60% by weight ofa polymer having a carboxylgroup and a carboxylate group; 5to 60% of a polymer having a hydroxyl group and an epoxy group;0.05 to 20% of a pigment-dispersing agent; and 0.1 to 50% of apigment.
COLOR-PLUS-CLEAR COMPOSITECOATINGU.S. Patent 5,969,058. Oct. 19, 1999L.G. Anderson et al., assignors toPPG Industries Ohio Inc., Cleveland
a curable film-forming composition comprising a mixture of 10 to90% by weight of at least one epoxy functional copolymer; 5 to95% of at least one polycarboxylicacid crosslinking agent; and aneffective catalytic amount of atlest one triaryltin compound.
HIGH-SOLIDS COATINGU.S. Patent 5,969,085. Oct. 19, 1999F.N. Jones et al., assignors to ExxonChemical Patents Inc., Baytown,Texas
A polymeric vehicle, which is effective for providing a formulatedcoating composition having about75% solids.
PULSED PLASMA .JET PAINTREMOVALU.S. Patent 5,970,993. Oct. 26, 1999F.D. Witherspoon et al., assignors toUtron Inc., Manassas, Va.
A method of removing paint froma surface comprising generatingapulsed plasma within a capillaryby providing an arc dischargewithin the capillary and directingthe pulsed plasma as a jet fromthe capillary to the paint, ablating
Metal Finishing