Embed Size (px)
Citation preview
US, Patent 6,398,943. June 4,2002 R. Arens-Fischer, et al., assignors to Forschungzentrum Julich GmbH, Julich, Germany A method of producing a porous layer comprising applying to a surface of a material capable of being porosidized by electrochem- ical etching at least one wedge- shaped mask controlling etching depth; and electrochemically etching the surface along the mask whereby a deep-etching rate of the etching varies as a function of the shapeof the mask.
U.S. Patent 6,398,944. June 4,2002 K. Arlt, et al., assignors to BASF Coatings AG Glasuritstrasse, Germany A method of removing an acid lib- erated in a cathodic electrodeposi- tion coating process comprising providing an electrodeposition bath having a cathode and an anode, wherein the anode com- prises a substrate and an oxide coating layer of an oxide selected from the group consisting of tin oxide, a mixture of tin oxide and
NORTH AMERICAN AIR PRODUCTS, INC.
“Industrial Ventilation Systems for Corrosion-Resistant Applications”
Custom Design & Engineering Services
PVC Ductwork
PVC Exhaust Hoods
High Efficiency Mist Eliminators
Fume Scrubbers
Exhaust Fans
Turnkey Installations
P.O. Box 1050 520 South Gould Street Owosso, MI 48867-1050
Ph: 989-723-3665 Fax: 989-723-3666
E-mail: [email protected]
Circle 078 on reader information card Circle 122 on reader information card
ruthenium oxide, a mixture of tin oxide and iridium oxide an mix- tures thereof; and breaking down the acid by oxidation at the anode, wherein the acid is select- ed from the group consisting of formic acid, acetic, lactic acid, dimethylolpropionic acid, and mixtures thereof.
US. Patent 6,398,964. June 4,2002 D.M. Brady, et al., assignors to Koch Microelectronic Service Co. Inc, Houston A process for treating aqueous waste comprising a copper plat- ing waste stream, a copper rinse stream containing organic car- bon and solid particles, and a copper chemical mechanical pla- narization (CMP) stream con- taining solid particles, the process comprising electrowin- ning to remove copper and create a blow down stream; filtering to remove solid particles; adding the blow stream to the CMP stream; treating with a floccu- lant or a coagulant to form larg- er solid particles; and removing the larger solid particles.
US. Patent 6,398,967. June 4,2002 J W Sparapany, et al., assignors to Nalco Chemical Co., Naperuille, Ill. A method of clarifying water con- taining dispersed solids compris- ing adding to the water an effec- tive clarifying amount of a low molecular weight water-soluble cationic dispersion terpolymer.
US. Patent 6,399,153. June 4,2002 R.K. Kephart, assignor to Bombardier Motor Corp. of America, Grant, Fla. A method of coating or plating a portion of a component made of electrically conductive material comprising filling a tank with a plating or coating solution; sus- pending a component made of electrically conductive material from an electrically conductive support structure located inside an interior volume of a concave structure, with a lower portion of the component extending down- ward from and protruding outside the interior volume and an upper portion being located inside the
June 2003 145 :
