radiation curable coatings with improved weatherability

to 30% of methylene chloride; 1 to10% of hydrogen peroxide; and 10to 60% of water.

RADIATION CURABLE COATINGSWITH IMPROVED WEATHERABILITYUS. Patent 5,990,188. Nov. 23,1999G.A. Patel et ai., assignors toGeneral Electric Co., Schenectady,NY

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AUAir Technologies, Inc.

205 West 17th 51. (785) 242 1811Ottawa. KS 66067 fax (785) 242 8700

(800) 624-8739E-mail: ati@ati-filters.com

Website: www.ati-filters.com

Circle 089 on reader information card

108

A radiation-curable coating com­position comprising 5 to 50% silylacrylate modified colloidal silica.

COLORED METALLIC PAINTCOMPOSlnONUS. Patent 5,990,219. Nov. 23, 1999N. Sakai et al., assignors to BASFCoatings AG, Muenster-Hiltrup,Germany

A colored metallic paint composi­tion comprising a film formingbinder; 0.1 to 15 parts by weightof metallic powder; 0.1 to 10 partsof a first colored pigment; 0.5 to 50parts of a second colored pigmentwherein the primary particle sizeof the first colored pigment issmaller than the primary particlesize of the second colored pigmentand the first colored pigment andthe second colored pigment have acomplementary color relation­ship.

PROCESS FOR PICKLING STEELAND STAINLESS STEELUS. Patent 5,992,196. Nov. 30, 1999H. Giraud et al., assignors to Usinor,Puteaux, France

A continuous production line forproducing a strip of a rolled sheetof steel and in particular a rolledsheet of stainless steel comprisingin combination the means for sub­jecting the strip to in succession: amechanical treatment; a primarypickling; a transformation opera­tion; annealing operations; a finalpickling; and a finishing opera­tion.

ROTARY BRUSHUS. Patent 5,992,491. Nov. 23, 1999R. Audisio, assignor to BibielleS.PA, Italy

A system for producing a ring ofabrasive sheet elements fromwhich to form a rotary brush.

APPARATUS TO CLEAN GOLDPLATEUS. Patent 5,993,301. Nov. 30, 1999W. Kim et al., assignors to SamSung

Electronic Co., Ltd., Kyungki-do,Rep. of Korea

An apparatus to clean gold-platedcontact surfaces of printed circuitboards comprising a printed cir­cuit board guide comprising aguide rail to guide the printed cir­cuit boards; at least one cleaningunit to remove contaminants fromthe gold-plated contact surfacesthrough friction of the cleaningunit and the gold-plated contactsurfaces relative to the move­ments of the printed circuitboards on the length of the guiderail; and a base to support and fixthe cleaning unit and the printedcircuit board guide.

VACUUM TREATMENT SYSTEMUs. Patent 5,993,556. Nov. 30, 1999H. Maidhof et al., assignors toLeybold Systems CmgH, Hanau,Germany

A vacuum treatment system fordepositing a thin coating on a sub­strate, comprising a plurality ofstationary treating chambers thatare held by an annular or frameside wall of a vacuum chamber,each treatment chamber housingone or more treatment tools, andwherein each treatment chamberincludes an opening facing inwardtoward the center of the vacuumchamber permitting transfer ofthe substrate in and out of a lockand with a shaft or screw spindleextending parallel to the planes ofthe openings and mounted in avacuum chamber lid and/or in avacuum chamber.

CLEANING PAINT RESIDUESUS. Patent 5,993,561. Nov. 30, 19Y9C.P. ,Jarema, assignor to HenkelGorp., Gulph Mills, Pa.

A process for removing at leastpartially dried paint residuesfrom a surface bearing a coat ofsuch paint residues comprisingproviding a first liquid that isswellantlsolvent for the paint res­idues to be removed; a second liq-

Metal Finishing