yarns, each bundle providing a backing portion having a width greater than the width of the chain-stitched warp yarns, with a plurality of openings extending through the backing between adjacent backing portions; and a coating of abra- sive material adhesively affixed to each of the said backing portions.

Method for Treatment of Solid Waste U.S. Pafenf 5~574,176. Oct. 7, 1997 S.A. Pierce, assignor fo Enfacf Inc.. Irving, Texas

A method of treating solid hazardous waste containing unacceptable levels of leachable metals. the method comprising mixing with at least one agent selected from the group consisting of phosphoric acid, monocalcium phosphate, monoam- monium phosphate, or diammonium phos- phate and adding Portland cement in suffi- cient quantities such that the mixture will have an optimum pH range between 5.5 and I I.5 so that under both acidic and nonacidic leaching conditions the metals in the mixture will be converted to substan- tially nonleachable forms.

Sputtering Target U.S. Patent 5,674,367. Oct. 7. 1997 T Hunf and ES. Gilman, assignors to Sony Corp.. Tokyo, and Maferials Research Corp., Orangeburg, N. Y.

A sputtering target having a shrink fit mounting ring.

Method for Manufacturing a Color Filter U.S. Pafenf 5674,369. Oct. 7, 1997 T Watanabe et al.. assignors to Sumifomo Chemical Co., Lfd.. Osaka, Japan

A method for manufacturing a color fil- ter by forming a color layer selectively on an electroconductive transparent thin layer formed on the surface of a transparent sub- strate by means of electrodeposition. which comprises conducting the electrodeposition using the electroconductive layer-carrying transparent substrate a$ one electrode, and a wire netting-form electrode as a counter- electrode. wherein the electrodeposition is conducted by putting both electrodes to face each other at a distance in parallel into an electrodeposition bath, which is open to the air. and appying a voltage thereto.

Bath Control Apparatus and Reagents

pH and Ion Selective Electrodes

Environmental Test Kits

EM Science Reagent Chemicals

Laboratory Equipment

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Hawk Creek Laboratory, Inc. R.D. 1, Box 686, Simpson Rd. Glen Rock, PA 17327 Phone: 717-235-3849

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Method of Electroforming an Abrasion Shield U.S. Patent 5674,370. Oct. 7, 1997 D. G. DuPree, assignor to Optical Adiafion Corp., Azusa, CaM

A method of forming a saddle-shaped abrasion shield having a top leg portion and a bottom leg portion and a bonded leading portion suitable for a blade of a low-pressure fan 01’ a turbofan jet engine, comprising elec- troforming against a first mandrel a first part comprising a leg portion and a leading por- tion, said leading portion ha\ing an inner surface facing the first mandrel during the electroforming process; removing the firxt part from the first mandrel: placing the first part in a holding fixture with the inner surface of the leading portion exposed; placing a second mandrel against the leg portion of the first pa11 in the holding fixture with the innel surtace of the leading portion left exposed; electroforming a second part comprising a leg portion and a leading portion. whereby said leading portion bonds to the exposed inner surface of the leading portion of the first part thereby forming a saddle-shaped abrasion shield having a pair of spaced-apart legs connected by a bonded leading portion:

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92 METAL FINISHING . MAY 1998