Granted in the Metal Finishing Field P r i n t e d cop ies o f p a t e n t s a r e f u r n i s h e d by t h e P a t e n t a n d T r a d e m a r k s Office for $3 .00 each . A d d r e s s o r d e r s to: C o m m i s s i o n e r o f P a t e n t s a n d T r a d e m a r k s , W a s h i n g t o n , D.C. 20231

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COPPER FOIL FOIl FABRICATION

OF CIRCUIT BOARDS

US. Patent 6,372,113. April 16, 2002 C.B. Yates et al., assignors to Yates Foil USA Inc., Bordentown, N.J. A process for producing a treated copper foil, which comprises elec- trodepositing a copper foil on a rotating drum cathode to produce a first copper base foil having a shiny drum side and an electrolyte side with a matte surface having a first surface roughness; and electrode- positing on the electrolyte side of the base foil a copper microrough layer having a surface roughness, which is different from the rough- ness of matte surface and has a

peak count greater than a peak count matte surface, wherein the electrodeposition conditions include the use of a copper sul- fate/sulfuric acid electrolyte con- taining a minor amount each of poly(propylene glycol-b-ethylene glycol-b-propylene glycol)bis(2- aminopropyl ether) and hydrox- ylethyl cellulose.

ANODIZ ING SILICON-BASED

A L U M I N U M ALLOY

US. Patent 6,372,115. April 16, 2002 H. Miyasaka and H. Matsukawa, assignors to Honda Giken Kogyo, Tokyo A process for anodizing silicon-

based aluminum alloy comprising electrolysis in an electrolyte con- ta ining tribasic sodium phos- phate and fluoride to form an anodized film having surface roughness of 2-3 um on the alloy; infi l t rat ing a photoset t ing or thermosetting resin in liquid form into microholes in the anodized film, the resin being a fluorocar- bon polymer; and radiating light or heat at the infiltrated resin to make the resin become hardened.

ELECTROPLATING APPARATUS

US. Patent 6,372,116. April 16, 2002 D-H. Kim et al., assignors to Hyundai Microelectronics Co. Ltd.,

Announcing Dev-Str ip T - Inhibi ted

A unique NEW Liquid Alkaline Immersion Stripper for Tin and Tin-Alloys

Advantages ,~- No peroxides or cyanides.

* Operates at room temperature.

~- Does not attack the base metal.

~- Economical concentrated formula - use at 25% concentration.

-~ Stripped parts can be dried and stored with short-term corrosion protection

-A- Stripping rate is approximately 13 minutes for 0.0003 inches Tin or Tin-Zinc.

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Chungcheongbuk-do, Rep. of Korea A method for forming a conduc- tive layer comprising immersing a plated body surface in a first fluid medium disposed within a first chamber; and treating the plated body surface with super- sonic waves generated and prop- agated by a supersonic wave gen- erator immersed in a second fluid medium.

BRIGHT TIN-COPPER ALLOY

ELECTROPLATING SOLUTION

US. Patent 6,372,117. April 16, 2002 T Tamura, assignor to Nippon MacDermid Co. Ltd., Kanagawa-Ken, Japan A process for plating a tin-copper alloy upon a substrate comprising contacting with a plating solution of organosulfonic acid; divalent tin salt of an organosulfonic acid;

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divalent copper salt of an organosulfonic acid; divalent tin salt of an organosulfonic acid; divalent copper salt of an organosulfonic acid; dispersant comprising at least two com- pounds selected from the group consisting of polyoxyethylene alkyl phenyl ethers, polyoxyethyl- ene alkyl ethers, and alkylene glycol akyl ethers; and brighten- ers selected from the group con- sisting of aliphatic or aromatic aldehydes, aliphatic carboxylic acids, and mixtures thereof.

NICKEL-IRON.COBALT ELIECTROPLATIIIMG BATN

US. Patent 6,372,118. April 16, 2002 W.H. Hui, Ewing, N.J. An electroplating bath compris- ing in solution based on the total metal content of the solution 0 to 25% iron by weight, 10 to 30% cobalt, 50 to 80% nickel, 3 to 8% hardening agent, 5 to 15% com- plexing agnet, and 8 to 20% reducing agent, wherein the hardening agent is selected from the group consisting of phenyl- propiolic acid, 2-butyne-l,4- disulfonic acid, 3-dimethy- lamino- 1-propyne, and bis ( t r imethylamine)- l ,2-diphenyl- 1,2-bis (dichloroboryl)ethylene.

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HIGN A L U M I N U M GALVANIZED STEEL

US. Patent 6,372,296. April 16, 2002 W.J. van Ooij and P. Vijayan, assig- nors to University of Cincinnati, Cincinnati A process for hot-dip batch galva- nization of a steel article compris- ing fluxing by electroless plating on the surface a layer of a metal, wherein the metal is selected from the group consisting of tin, copper, nickel, and mixtures thereof; and galvanizing by dip- ping in a bath consisting essen- tially of molten zinc and 17 to 40% by weight molten aluminum, such that the metal layer on the

78 Metal Finishing

steel article is directly contacted by the galvanizing bath.

CHROME-PLATED BODYSIDE

MOLDING

US. Patent 6,372,311. April 16, 2002 B. McCormick, assignor to Guardian Industries Corp., Auburn Hills, Mich. A bodyside molding to be attached to a vehicle comprising an elongated base; an electroplat- ed cover including first and sec- ond portions between which an elongated channel is defined; and wherein an end of the first por- tion of the cover is welded to a first portion of the base and an end of the second portion of the cover is welded to a second por- tion of the base.

COATED ABRASIVE ARTICLE

US. Patent 6,372,336. April 16, 2002 TM. Clausen et al., assignors to 3M Innovative Properties Co., St. Paul, A presized backing for a coated abrasive article.

PARTICLES FOR COMPOSITE DIS- PERSION PLATING

US. Patent 6,372,345. April 16, 2002 T Wakae et al., assignors to Nihon

Parkerizing Co. Ltd., and Isuzu Motors Ltd., both of Tokyo A composite particle for compos- ite dispersion electroplating using a plating bath having a base metal as its basis, and wherein an electric voltage is applied between the bath and a material to be plated, the composite parti- cle comprising a core particle composed of material selected from the group consisting of car- bon and Fe304; and a nonuniform shell composed of a plurality of separate shell particles encapsu- lating the core particle, the shell particles being composed of mate- rial selected from the group con- sisting of nickel, tin, and zinc.

RESIN-COATED ALLOY-COATED

STEEL SHEET

US. Patent 6,372,365. April 16, 2002 M. Ibuki et al., assignors to Daido Steel Sheet Corp., Amagasaki, Japan A resin-coated aluminum-zinc alloy coated steel sheet as a sub- strate and a resin film formed on the substrate by use of a chrom- containing resin composition and produced by compounding a silane coupling agent having

amino group, chromium ion, and at least one alcohol selected from the group consisting of trihydric alcohol and dihydric alcohol.

Manufacturers and worldwide sup- pliers of ANION and CATION ION EXCHANGE MEMBRANES.

APPLICATIONS Electrocoating for Anion and Cation paint systems. Water Treatment EDI Systems Electrodeposition of metals: nickel, chrome, etc.

PPG Electrodlalyels. APPROVED

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52 Goodvlet Place, Glen Rock, NJ 07452 Fax: 201 -447 -2132

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