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A method for plating an internal wall surface of a via through at least one layer of a device having multiple layers comprising generating a laser output of at least one pulse having a spot area, a wavelength shorter than 400 nm, a temporal pulse width shorter than about 100 ns, and an average output power of greater than about 100 mW measured over the spot area; di- recting the laser output through the via toward a substrate having an electrically conductive plating material positioned in proximity to the internal wall surface of the via; and ablating the plating material from the substrate with a force sufficient to em- bed micrometer-sized particles of the plat- ing material into the internal wall surface of the via in an amount sufficient to form an electrically conductive interconnection between the layers. In-Line Coating of Steel Tubing U.S.Patent5614,265. Mar. 25, 1997 M.A. Chaudhryet a/., assignors to Allied Tube & ConduitCorp., Harvey, 111. An apparatus for applying a coating to a length of horizontally oriented metal tubing moving along a linear path concentric with Hardcoated and Tinted Articles the tubing. U.S. Patent 5,614,321. Mar: 25, 1997 Continuous Strip Coating Control Methods U.S. Patent5614,266. Mar. 25, 1997 XL. Coxet a/., assignors to Weiffon Steel Corp., Weirfofl, W Va. A continuous-strip hotdip metal coating process for controlling molten metal coating remaining on flat-rolled continuous strip steel. Coating Composition U.S.Patent 5,614,266. Mar. 25, 1997 M.J.Varley and J.6. Thomas, Swansea, Great Britain A process for coating a metal surface with a composition comprising at least one C, to C,, carboxylic acid, at least one citric acid ester,and an organic solvent, said process comprising ap plying the composition to the metal surface in an amount of 5 to 350 mg/m’ by a method selected from the group consisting of electro- static deposition, spraying, immersion coating, and mller coating G.F: Medford ef a/., assignors to General Electric Co., Waterford, N.Y. A tinted article made by applying to at least one surface of a substrate a curable coating composition comprising an effective amount of a nonvolatile colloidal silica; an effective amount of 3-methactyloxptopyl trimethoxysi- lane wherein said 3-methacryloxypropyl tri- methoxysilane contains at least one functional group capable of reacting with the colloidal silica; an effective amount of hexane diol dia- crylate and trimethylol propane triacrylate; a catalytic amount of the ffee mdical initiator methyl benzoyl formate; and 3,4-epoxycyclo hexylmethyl-3,4epoxycyclohexyl carboxylate; curing the coating composition on the surface of said substrate by exposing said composition to high intensity radiation to form a coated surface on the substate; and immersing the coated surface on the substrate in a bath con- taming a colorant for a period of time sufficient for the coated surface to absorb a desired amount of the colorant; wherein the curable coating composition does not comprise any cat- ionic initiator. Henkel’s odd-chain EMEROX@ Azelaic Acid (l-9 Nonanedioic Acid) is a natural-based, g-carbon, saturated,lOO% straight chain dibasic acid. It performs better than even-carbon dibasic acids by: ?? Improving flexibility; ??Providing derivatives with lower melting points than even-chain acids; ?? Providing better solubility characteristics; and ?? Improving dye receptivity. Available Azelaic Acid grades: . EMEROX@ 1110 technical grade, with approximately 98% dibasic acid content, ?? EMEROX@ 1144 polymer grade, with a minimum 99.5% dibasic acid content. Henkel 0 Henkel Corporation 5051 Estecreek Drive Cincinnati, OH 45232-1446 For orders in North America: 513.482.3131 Fax: 513.482.5511 E-mail: [email protected] For orders outside North America: 513.482.3108 Applications include nylon engineering plastics and fibers; polyester fibers, films and adhesives; urethane elastomers and elastomeric fibers; lubricant basestocks; lithium complex greases; thermosetting polyester resins; epoxy flexibilizers; PVC plasticizers; and corrosion inhibitors. To learn how to improve the physical and chemical properties of your products, call us. Fax: 513.482.5504 E-mail: [email protected] 01997 Henkel Corporation. Printed in U.S.A. B designates trademark of the Henkel Corporation Circle 027 on readerinformation card METAL FINISHING ?? DECEMBER 1997 71

Continuous strip coating control methods

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A method for plating an internal wall surface of a via through at least one layer of a device having multiple layers comprising generating a laser output of at least one pulse having a spot area, a wavelength shorter than 400 nm, a temporal pulse width shorter than about 100 ns, and an average output power of greater than about 100 mW measured over the spot area; di- recting the laser output through the via toward a substrate having an electrically conductive plating material positioned in proximity to the internal wall surface of the via; and ablating the plating material from the substrate with a force sufficient to em- bed micrometer-sized particles of the plat- ing material into the internal wall surface of the via in an amount sufficient to form an electrically conductive interconnection between the layers.

In-Line Coating of Steel Tubing U.S. Patent 5614,265. Mar. 25, 1997 M.A. Chaudhry et a/., assignors to Allied Tube & Conduit Corp., Harvey, 111.

An apparatus for applying a coating to a length of horizontally oriented metal tubing

moving along a linear path concentric with Hardcoated and Tinted Articles the tubing. U.S. Patent 5,614,321. Mar: 25, 1997

Continuous Strip Coating Control Methods U.S. Patent 5614,266. Mar. 25, 1997 XL. Cox et a/., assignors to Weiffon Steel Corp., Weirfofl, W Va.

A continuous-strip hotdip metal coating process for controlling molten metal coating remaining on flat-rolled continuous strip steel.

Coating Composition U.S.Patent 5,614,266. Mar. 25, 1997 M.J. Varley and J.6. Thomas, Swansea, Great Britain

A process for coating a metal surface with a composition comprising at least one C, to C,, carboxylic acid, at least one citric acid ester, and an organic solvent, said process comprising ap plying the composition to the metal surface in an amount of 5 to 350 mg/m’ by a method selected from the group consisting of electro- static deposition, spraying, immersion coating, and mller coating

G.F: Medford ef a/., assignors to General Electric Co., Waterford, N.Y.

A tinted article made by applying to at least one surface of a substrate a curable coating composition comprising an effective amount of a nonvolatile colloidal silica; an effective amount of 3-methactyloxptopyl trimethoxysi- lane wherein said 3-methacryloxypropyl tri- methoxysilane contains at least one functional group capable of reacting with the colloidal silica; an effective amount of hexane diol dia- crylate and trimethylol propane triacrylate; a catalytic amount of the ffee mdical initiator methyl benzoyl formate; and 3,4-epoxycyclo hexylmethyl-3,4epoxycyclohexyl carboxylate; curing the coating composition on the surface of said substrate by exposing said composition to high intensity radiation to form a coated surface on the substate; and immersing the coated surface on the substrate in a bath con- taming a colorant for a period of time sufficient for the coated surface to absorb a desired amount of the colorant; wherein the curable coating composition does not comprise any cat- ionic initiator.

Henkel’s odd-chain EMEROX@ Azelaic Acid (l-9 Nonanedioic Acid) is a natural-based, g-carbon, saturated,lOO% straight chain dibasic acid. It performs better than even-carbon dibasic acids by:

?? Improving flexibility; ??Providing derivatives with lower melting points

than even-chain acids; ??Providing better solubility characteristics; and ?? Improving dye receptivity.

Available Azelaic Acid grades: . EMEROX@ 1110 technical grade, with

approximately 98% dibasic acid content, ??EMEROX@ 1144 polymer grade, with a

minimum 99.5% dibasic acid content.

Henkel 0 Henkel Corporation 5051 Estecreek Drive Cincinnati, OH 45232-1446

For orders in North America: 513.482.3131 Fax: 513.482.5511 E-mail: [email protected]

For orders outside North America: 513.482.3108

Applications include nylon engineering plastics and fibers; polyester fibers, films and adhesives; urethane elastomers and elastomeric fibers; lubricant basestocks; lithium complex greases; thermosetting polyester resins; epoxy flexibilizers; PVC plasticizers; and corrosion inhibitors. To learn how to improve the physical and chemical properties of your products, call us.

Fax: 513.482.5504 E-mail: [email protected]

01997 Henkel Corporation. Printed in U.S.A. B designates trademark of the Henkel Corporation

Circle 027 on reader information card

METAL FINISHING ?? DECEMBER 1997 71