tures thereof, wherein the aque- ous solution has a free alkalinity in the range of 5 to 20 points and a total alkalinity in the range of 7 to 30 points; and containing the metal surface with the alkaline aqueous solution.

COATING REMOVAL SYSTEM U.S. Patent 6347,976. Feb. 19,2002

S. A. Lawton et al., assignors to The

Boeing Co., Seattle

An apparatus for removing a coat- ing from a substrate comprising a nozzle having an outlet and adapted to direct a particle stream therethrough at a predetermined flow rate; a signal source for emit- ting a signal capable of traversing the particle stream; and a signal sensor positioned to detect the sig- nal capable of traversing the par- ticle stream; and a signal sensor positioned to detect the signal emitted by the signal source once the signal has passed through the particle stream.

COMPOSITION FOR REMOVING PAINT US. Patent 6,348,107. Feb. 19, 2002

C. A. Whitton et al., assignors to

Chemetall PLC

A method of stripping paint from a substrate surface comprising providing a 2-phase liquid strip- per composition consisting of an aqueous phase, which comprises water, dissolved water-soluble activator compound, and benzyl alcohol, and an organic phase comprising organic solvent; con- tacting the substrate surface with the aqueous phase; and stripping the paint from the sub- strate surface.

UV-CURABLE POWDER COATING CTS. Patent 6,348,242. Feb. 19, 2002

A. T Daly et al., assignors to Morton

International Inc., Chicago

A method for producing a low or medium gloss appearance with UV-curable powder coatings.

COATING AGENT FOR A RESIN-MOLDED ARTICLE US. Patent 6,348,537. Feb. 19, 2002

H. Sugamoto et al., assignors to

Mitsubishi Rayon Co. Ltd., Tokyo

A coating composition comprising 50 to 99 parts by weight of a monomer or monomer mixture composed of 50 to 100% by weight of polyfunctional (methjacrylate monomer having at least two (meth)acryloyoxy groups in the molecule; 0 to 50% by weight of a monofunctional (methjacrylate monomer; and 1 to 50 parts by weight of colloidal silica.

SOLVENTLESSS PRIMERS L?S. Patents 6,350,344. Feb. 26, 2002

H. G. Kinzelman and M. Drobnik,

assignors to Henkel KG, Duesseldori

Germany

A method for improving adhe- sion between a substrate and a coating layer comprising form- ing a layer of a solvent-free radi- ation-curable primer composi- tion on the substrate wherein the solvent-free primer compris- es at least one composition selected from the group consist- ing of cationically curable com- positions and free-radically cur- able compositions.

ANODIC ELECTROPHORETIC COATING METHOD VS. Patents 6,350,358. Feb. 26, 2002

E. Ehmann et al., assignors to E.Z.

du Pont de Nemours and Co.,

Wilmington, Del.

A method for anodic electrodip coating, wherein coating medium consumed is compensated for by an under-neutralized anodic replenishment material and wherein the replenishment mate- rial comprises a pigment-free aqueous binder vehicle compo- nent with a solid content of 40 to 70% by weight and a pigment- containing aqueous paste resin component with a solid content of 60 of 75%.

FABRICATING A 3-DIMENSIONAL TOOL U.S. Patent 6,350,360. Feb. 26,2002

IV D. Bonivert and J T Hachman,

assignors to Sandia Corp.,

Livermore, Calif

A method for fabricating an imprint tool master comprising providing a metal plate or sheet; forming a first photoresist layer onto the metal plate or sheet; aligning an image pattern mask onto the first photoresist layer; exposing the first photoresist layer; removing the first image pattern mask; developing to pro- vide a surface having 3-dimen- sional embossing pattern; depositing a conductive film onto the surface, thereby provid- ing a master mandrel; electro- forming a first metal layer on the conductive film; and sepa- rating the first metal layer from the master mandrel, wherein the first metal layer comprises the imprint tool master, said imprint tool master having a surface comprising an inverse 3- dimensional image of the embossing pattern.

PAINTING APPARATUS US. Patent 6,350,491. Feb. 26,2002

l’! L. Williams, assignor to Adac

Plastics Inc., Grand Rapids, Mich.

A method of spray painting com- ponents comprising providing, in sequence, a load station, a paint station, a cure station, and an unload station; moving a part to be painted from the load station to a stop location at the spray sta- tion; applying a first coat of paint to the part at the spray station stop location; thereafter, prior to moving the part to the cure sta- tion, removing the part from the

spray station stop location, returning the part to the spray station stop location, and apply- ing a second coat of paint to the part at the spray station stop location; moving the part to the

84 Metal Finishing