Coated abrasive

Coated abrasive

Fluxes for Lead-Free Galvanizing U.S.Patenf 5437,738. Aug. 1, 1995 composition containing said water-dispersed, film-forming crosslinkable polymer sy...

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Fluxes for Lead-Free Galvanizing U.S.Patenf 5437,738. Aug. 1, 1995

composition containing said water-dispersed, film-forming crosslinkable polymer system and dispersed water-swellable clay.

Y Gerenrot et al., Allison Park, Pa A preflux for galvanizing steel comprising S-30% zinc chloride, 2-20% ammonium chloride, O.l-1.0% boric acid or salt thereof. and O.l-2.0% inhibitor.

Polyurethane-Based Multicolor Paint U.S.Patenf 5,437,719. Aug. 1, 1995 J.E Lynch and J. Predkelis, assignors to Multicolor Specialties Inc., Cicero, 111. A method for making an aqueous multi-

color paint having a discontinuous aqueous phase dispersed in a continuous aqueous phase, one composition containing a waterdispersed, film-forming, crosslinkable polymer system selected from the group consisting of a polyurethane system, a carboxylated polymer system, and mixtures thereof, dissolved cellulose material selected from the group consisting of hydroxy (lower alkyl) cellulose, alkali metal carboxylated (lower alkyl) cellulose, and mixtures thereof, and pigment; the other

pearlite takes place thereby producing a patented brass-plated steel wire; and further cooling to ambient temperature.

Coated Abrasive U.S. Patent 5,437,754. Aug. 1, 1995 CD. Calhoun, assignor to 3M Co., St. Pau/, Minn.

Process for Patenting and Brass Plating Steel Wire U.S. Patent 5,437,748. Aug. 1, 1995 A. W. Bhagwaf and E.E Riggenbach,assignors to The Goodyear Tire & Rubber Co., Akron, Ohio

A process for simultaneously parenting and brass plating a steel wire, which comprises continuously passing the wire through a molten mixture of copper and zinc to apply a brass coating thereto, wherein the molten mixture is maintained at a temperature in the range of 930-about llOO”C, and wherein the steel wire has a residence time in the range of 6-15 set, which is sufficient for the steel to be austenitized; continuously wiping excess brass from the austenitized wire as it exits the molten mixture to attain a brass-coated steel wire having a coating weight in the range of 28 grams of brass per kilogram of the steel wire; cooling the wire to a quenching temperature in the range of 5OM5O”C until a transformation from austenite to

An abrasive article having precise lateral spacing between abrasive composite members.

Corrosion-Resistant Aluminum

Coating for

U.S. Patent 5,437,740. Aug. 1, 1995 J. W. Bibber, assignor to Sanchem Inc., Chicago

A method of protecting nonanodized aluminum or aluminum alloy with a nonchromium coating comprising contacting with an aqueous solution containing as the essential ingredients an alkali metal permanganate and an aluminum nitrate (at least 760 ppm of permanganate and O.lO10.0% of aluminum nitrate); maintaining the pH of the solution at 254.0, maintaining the temperature at 140_170”F, immersing for at least 20 seconds to form a protective conversion coating on the

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