formaldehyde generating composition, which it functions as the cathode, whereaf- and one or more stabilizers, ter the blank is plated with a metal.

Treated Metal Sheet U.S. Patent 5,648,126. July 15, 1997 [ Kameya et al., assignors to Taiyo Steel Co. Ltd., Tokyo

A process for manufacturing a surface- treated metal sheet of high durability con- sisting of subjecting to a chemical treat- ment to form a chemically treated metal sheet; applying by roll coating an organic resin paint containing a rust-inhibitive pig- ment and drying to form an undercoat layer on the chemically treated metal sheet: ex- truding a molten modified polyolefin resin and a molten polyolefin resin simulta- neously in two layers from an extruder through a T-die to form an intermediate coating layer having a thickness of 50 to 500 microns on the undercoat layer; and applying, as a topcoat paint, an acryl-mod- ified vinylidene fluoride resin paint onto the intermediate coating layer and drying the topcoat paint to form a topcoat layer on the intermediate coating layer and option- ally subjecting the intermediate layer to flame or corona discharge treatment before forming the topcoat layer thereon.

Protective Coating Simulating Brass U.S. Patent 5,648,179. July 15, 1997 S.R. Moysan, III and R.L. Sugg, assignors to Baldwin Hardware Corp., Reading, Pa.

An article comprising a metallic substrate having disposed on at least a portion of its surface a multilayer coating simulating brass comprising a layer of semibright nickel; a layer of bright nickel; a layer of tin-nickel; and a top layer comprised of zirconium com- pound or titanium compound.

Photoresist Stripping Composition U.S. Patent 5,648,324. July 15, 1997 K. Honda et aL, assignors to OCG Microelectronic Materials Inc., Norwalk, Conn.

A photoresist stripper composition com- prising 20 to 70% by weight of an organic polar solvent having a dipole moment of more than 3.5; 70 to 20% of an alka- nolamine compound; and 0.1 to 10% of 2,2' - [ [ (methyl - 1H-benzothiazol - 1 -yl )meth- yl]imino] bis-ethanol; all percents based on the weight of the stripper composition.

Corrosion-Resistant Paint U.S. Patent 5,648,416. July 15, 1997 G.G. Miller et al., assignors to Monsanto Co., St. Louis

An improved anticorrosion paint compris- ing one or more polymeric binders dispersed in a liquid medium, said improvement com- prising an anticorrosion effective amount of

one or more nonconductive conjugated poly- mers in addition to polymeric binder wherein the one or more nonconductive conjugated polymer is a conjugated homopolymer or copolymer having an electrical conductivity of less than 10 x S/cm.

Color Coating Composition U.S. Patent 5,648,417. July 15, 1997 A. Fushimi et al., assignors to Nippon Paint Co. Ltd., Osaka, Japan

A color coating composition comprising 10 to 60% by weight of one or more pigment dispersing resins selected from the group consisting of a polyester resin and derivatives thereof 1 to 40% of an aminoplast; 5 to 60% of a polymer having carboxyl groups and carboxylic ester groups; 5 to 60% of a poly- mer having hydroxyl groups and epoxy groups; a pigment; and a catalyst being a combination of a quaternary ammonium salt and a tin-containing compound.

Electroless Plating Process U.S. Patent 5,660,706. Aug. 26, 1997 B. Zhao and RK. Vasudev, assignors to Sematech Inc., Austin, Texas

A method for electric field initiated elec- troless metal deposition.

Zinc-Coated Sheet Steel U.S. Patent 5,660,707. Aug. 26, 1997 CR, Shastry et al., assignors to Bethlehem Steel Corp., Bethlehem, Pa.

A method for improving formability and weldability properties in sheet steel product on which a protective layer is formed on at least one surface thereof, the protective layer being an electroplated or hot-dip coated protective layer and comprising at least zinc by chemically applying an alka- line buffered solution comprising an oxi- dizer to the protective layer to form a zinc oxide layer thereon, said alkaline solution having a pH range of 7 to 11.

Process for Manufacturing a Lead Frame U.S. Patent 5,660,708. Aug. 26, 1997 Y. Tezuka et aL assignors to Sumitomo Metal Mining Co. Ltd., Tokyo

A process for manufacturing a lead frame by polishing a blank for a lead frame electrolytically and plating the electrolyti- cally polished surface of the blank with a metal, wherein the electrolytic polishing of the blank is carried out by employing a contactless electrolytic polishing apparatus and applying a direct current with ripples having a frequency of 4.0 to 120 Hz alter- nately to the anode and cathode in an elec- trolytic polishing tank filled with an elec- trolytic polishing solution, so that the time for which the blank positioned between both electrodes functions as the anode may be at least 3.3 times longer than that t~r

Process for Electroless Plating U.S. Patent 5,660,883. Aug. 26, 1997 '40mura, assignor to Omura Toryo Co. Ltd., Tottori Prefecture, and Daishin Chemical Co. Ltd., Tokyo

A process for catalyzation in electroless plating comprising lbrming 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.

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