Circle 033 on reader information card

for which the blank positioned between both electrodes functions as the anode may be at least 3.3 times longer than that for which it functions as the cathode, whereaf- ter the blank is plated with a metal.

ride, and methacrylamidopropyltrimethyl ammonium chloride w:lth an inorganic ma- terial selected from the group consisting of sodium carbonate and sodium hydroxide to reduce the tackiness of waterborne and/or solventborne paint, wherein the ratio of

Paint Spray Booth Treatment U.S. Patent 5,660,734. Aug. 26, 1997 H.6. Agree and J-C. Chen, assignors to BetzDearbom Inc., Trevose, Pa.

lignosulfonate to cationic monomer unit ranges from lo:90 to 90: 10.

A method of detackifying oversprayed Method for Removing Metals paint, which contacts and is captured by from Waste water circulating in a paint spray booth operation, comprising adding an effective

U.S. Patent 5,660,735. Aug. 26, 1997

amount of a combination of a copolymer of E. Coltriflari and WC. Haze?, assignors to Hazen Research Inc., Golden, Co/c.

lignosulfonate and cationic monomer unit selected from the group consisting of trim- ethylaminoethylacrylate chloride, methy- lacryloxyethyltrimethyl ammonium chlo-

A method for remediation of aqueous feed solutions containing a metal compris- ing precipitating the Inetal from a feed

solution to form a precipitate wherein the metal is selected from the group consisting of aluminum, arsenic, beryllium, boron, cad- mium, chromium, fluorine, nickel, selenium, vanadium, lithium, molybdenum, barium. lead, mercury, silver. copper, zinc, com- pounds thereof, and mixtures thereof; dis- persing discrete fibers in the feed solution to form a product comprising a fiber and pre- cipitate; removing the product from the feed solution to form a treated solution and a recovered product containing the metal pre- cipitate and discrete fibers; and separating the metal precipitate from the discrete fibers in the product to recover the metal.

Process for Electroless Plating U.S. Patent 5660,883. Aug. 26, 1997 Y. Omura. assignor fo Omura Tory0 Co. Ltd., Tottori Prefecture, and Daishin Chemical Co. Ltd., Tokyo

A process for catalyzation in electroless plating comprising forming a coating film comprising chitosan or a chitosan deriva- tive on the surface of a nonconductive sub- stance. and subsequently treating the coat- ing film with a solution of a salt of a catalyst metal to effect chemisorption thereof on the coating film.

Paint Formulations U.S. Pafent 5,661,209. Aug. 26, 1997 N.C.M. Beers et a/., assignors to Shell Oil Co., Houston

A paint formulation comprising at least one long oil alkyd resin and a solvent com- prising at least 90% by weight of one or more linear alkanes having a boiling range between 160 and 250°C.

Drier for a Painting Plant U.S. fafent5,661,912. Sept. 2, 1997 S. Bhahagar et al., assignors to D&r Gmbb’, Stuttgart, Germany

A booth-type drier for a painting plant comprising a booth interior for receiving painted articles to be dried; at least one heating element arranged in the drier; at least one heating gas pipeline; a heating gas duct for flowing hot heating gas there- through; and a valve-type control device for controlling the temperature of the heat- ing element by controlling the flow rate of heating gas.

Powder Coating Sprayer U.S. Patent 5662,272. Sept. 2, 1997 T Buquef et al, assignors to Sames S.A., Meylan, France

A device for delivery of a finely divided coating product to a sprayer comprising a conveyor composed of a tube and a worm screw mounted in the tube for transporting the coating product; a motor coupled to the worm screw for rotating it; and means as-

78 METAL FINISHING l MAY 1998