polydiorganosiloxane, a reinforcing tiller, and a crosslinking agent; mixing in a metallic particulate material to form a coating solution; applying the coating solu- tion to a surface; and curing.

Water-Wash Spray Booth Apparatus U.S. Patent5,370,792. Dec. 6, 1994 S. Bhafnagar et al., ass@tcrs to &err GmbH, Stuttgart, Gemany

An apparatus for removing wax particles sprayed past a substrate to be coated with wax from a spray booth water circulation system.

Degreasing Apparatus U.S. Patent 6370,143. Dec. 6, 1994 7: Tbkahashi, ass&or to Oriental Engineering Co. ltd, Arakawa, Japan

An apparatus for degreasing and clean- ing an object, the apparatus comprising a vacuum container having an inner chamber, the object being placed therein; and a heating chamber separated from the inner chamber; means for heating deployed with the heating chamber; means for jetting a

cleaning liquid into the inner chamber of the vacuum container, the cleaning liquid comprising water or steam; and means for evacuating evaporated ingredients by steam distillation from the inner chamber of the vacuum.

Filter Press Apparatus U.S. Patent5,370,795. Dec. 6, 1994 D. DeHaan et al, assignors to JWI Inc., Holland, Mich.

A plate shifter for a filter press.

Priming of Glass U.S. Patent5,370,905. Dec. 6, 1994 L.J. Varga et al, assignors to N&son Corp., Westlake, Ohio

A method of applying primer coating materials onto glass elements of vehicles.

Polyisocyanate-Based Coatings U.S. Patent5,370,908. Dec. 6, 1994 J.M. OQnnor et al., ass&ors to Olin Cop., Cheshire, Corm.

Low-VOC, heat-curable, one-compo- nent, and two-component coating composi- tions based on organic polyisocyanates.

Method for Removing Metal from Wastewater U.S. Patent5,370,600. Dec. 6, 1994 SM. Stevenson, McMwray, Pa.

A method for removing metal com- pounds selected from iron, manganese, aluminum, zinc, copper, lead, arsenic, and chromium from wastewater comprising adjusting the pH from 5 to 12; aerating; agitating; adding a flocculating agent poly- mer; and separating the floccules including the metal compounds from the water.

Conversion Coating for Aluminum U.S. Patent5,370,909. Dec. 6, 1994 S. Tanaka et al., assignors to Henket Corp., Plymouth Meeting, Pa.

A process for treating a drawn and ironed tin-plated steel, aluminum, or alumi- num alloy metal container comprising contacting with an aqueous liquid composi- tion for a period of time sufficient to form on the surface of the metal container a conversion coating layer that will increase the corrosion resistance of the container after subsequent painting or printing, wherein the aqeuous liquid composition has a pH in the range from 2.0-6.5, does not

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??Rugged, fully electronic gages non- destructively measure coatin

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ferrous and non-ferrous meta s m Instant auto-calibration m Comfortable, steady one-hand

operation u Durable, built-in probe design with

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??Measures non-magnetic coatings ??Ideal for measuring such as paint, enamel, plating, on small, hot or galvanizing, etc. on steel hard-to-reach surfaces

??The industry standard for measuring non-magnetic coatings (paint, enamel, galvanizing, nlatina. etc.1 on steel

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Circle 041 on reader information card

METAL FINISHING . JUNE 1995 159

contain chromium or fluorine, and consists essentially of water and l-30 g/L of phosphate ions; 0.1-5 g/L of condensed phosphate ions if used for tin-plated steel or 0.1-10 g/L or condensed phosphate ions if used for aluminum or aluminum alloy; 0.1-20 g/L as solids of a water-soluble resin component; and a chelating agent.

Multicoat Protective and/or Decorative Coatings U.S. PaM5,370,910. Dec. 6, 1994 KD. Hi//e et a/., assignors to BASF La&e + Farben AG, unsfer, Germany

A process for the production of a multicoat coating on a substrate surface comprising applying an aqueous dispersion of a base coat composition, which includes a polyurethane resin; a pigment; applying a top coat composition to the base coat; and baking the top coat and base coat.

Electroless Plated Aramid Surfaces U.S. Pafenf5,370,934. Dec. 6, 1994 RR. Burch ef al., assignors to El. DIJ font de Nemoufs & Co., Wilmingfon, Del.

An aramid fiber having a metal coating strongly adhered thereto wherein material,

which forms the surface of the aramid fiber, consists essentially of 70-98 weight per- cent, poly(p-phenylene terephthalamide) and 2-30 weight percent, polyvinyl pyrro- lidone.

Aqueous Coating Compositions from Polyethylene Terephthalate U.S. pafenf 5371,112. Dec. 6, 1994 DR. Sayre et al., assignors to The SherwinWilliams Co., Cleveland

An aqueous coating composition com- prising the reaction product of polyethylene terephthalate with a member of the group consisting of acid- and anhydride-func- tional materials; followed by the reaction with an alcohol; wherein the resultant composition is neutralized with a weak base and added to water.

Blasting Apparatus for Pipe U.S. Pafanf5,371,972. Dec. 13, 1994 S. E. Monkey, Calgary, and G.N. Fran&y, Lisle, assignors to Sbaw lndusfries Ltd., Rexdale, Canada

Apparatus for preparing the surface of steel pipe for coating comprising means for conveying pipe longitudinally along a con-

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Circle 126 on reader information card

veying axis; first and second particulate blasters spaced apart along the path for blasting the surface of the pipe; and a wire brush element disposed between the blas- ters, with means for rotating to abrade off substantially all surface anomalies from the pipe and provide a substantially smoothly curved abraded pipe surface.

High Solids Paint Viscometer U.S. Pafenf5,372,034. Dec. 13, 1994 I,/, Burke, assignor to FMC Cop., Chicago

An apparatus for measuring the viscosity of a fluid, comprising a cup with an inside and an outside, and with a bottom and top, with an orifice in the bottom of the cup; a handle mechanically connected to the cup; and a first tube extending to the inside of the cup wherein the tube surrounds the orifice.

Zinc Phosphate Coating U.S. Pafenf5,372,656. Dec. f3, 1994 J. Riesop, assignor fo Her&e/ KG, Duesseldorf, Germany

A process for phosphating a steel strip, which has been galvanized electrolytically, by melt immersion, or both electrolytically

PLATING METALS/CHEMICALS ?? Nickel - 1 x i’s, R Rounds,

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Circle 158 on reader intonation card

160 METAL FINISHING . JUNE 1995