Granted in the Metal Finishing
Field
Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231.
ENHANCING SURFACE
SOLDERARILITV
OF A
U.S. Patent 5,935,640. Aug. 10, 1999 D. Ferrier and E. Yakobson, assignors to MacDermid Inc., Waterbury, Conn.
A process for enhancing the solderability of a surface, which comprises immersion plating silver onto the surface prior to soldering and soldering directly upon the silver plate. REDUCING ELECTROLESS
SEED DEPOSlTlON PLATING
IN
U.S. Patent 5,935,652. Aug. 10, 1999 A.P. Angelopoulos et al., assignors to IBM Corp., Armonk, N.Y.
A method of reducing the amount of seed deposited on a dielectric surface comprising providing a workpiece coated with a polymeric dielectric layer. THERMALLY COATING
RELEASARLE
5.5 to 8.5, and comprises 0.0001 to 5 g/L of one or more metal ions selected from the group consisting of alkali metal and alkaline earth metal ions; and 0.0005 to 0.5 g/L of one or more organic acids selected from the group consisting of cyclic polycarboxylic acids having 3 to 6 carboxyl groups, phosphonic acids, and polyphosphinocarboxylic acids, the aqueous solution containing a larger quantity of the metal ions than is required for complete neutralization of the acids. MULTlPLE APPARATUS
NOZZLE
PAINT
SPRAY
U.S. Patent 5,935,657. Aug. 10, 1999 H. Melendez, Fair Oaks, Calif:
A method of painting using a multiple nozzle paint spray apparatus.
BARRIER CONTINUOUS APPARATUS
A liquid coating composition suitable for applying to a solid surface for producing a thermally releasable barrier coating on the surface.
U.S. Patent 5,935,658. Aug. 10, 1999 D. Clerc, assignor to Sollac, Puteaux, France
ANODIZED
MECAL
U.S. Patent 5,935,656. Aug. 10, 1999 T. Koerner et al., assignors to Henkel KGA, Dusseldorf; Germany
A process for sealing an anodized metal surface wherein the anodized metal is contacted for between 0.5 and 2 min per micrometer of anodized coating thickness with an aqueous solution, which has a temperature between 75°C and its boiling point, has a pH of 70
COATING
Process for application of an organic coating on a moving metallurgical product from a bath of liquid organic material contained in a vat, the transfer of material onto the product being accomplished in a coating zone, wherein in order to eliminate air bubbles an ascending current is generated in the liquid organic material bath between the coating zone and an element, which generates the ascending current so as to convey air bubbles in the bath to the vicinity of the bath surface and cause their bursting.
CURING
OF POWDER
U.S. Patent 5,935,661. Aug. 10, 1999 K.M. Biller and B.A. MacFadden, assignors to Herberts Powder Coatings Inc., Hilliard, Ohio
A process for obtaining a cured powder coating on the surface of a workpiece comprising providing a photopolymerizable composition; blending the composition as substantially dry solid powder; and depositing powder onto the surface of a workpiece; and curing. TWO-COMPONENT COMPOSITIONS
U.S. Patent 5,935,655. Aug. 10, 1999 S.J. Beleck, assignor to Henkel Corp.
SEAL FOR SURFACES
RADlATlON COATINGS
COATING
U.S. Patent 5,935,710. Aug. 10, 1999 M. Hoenel et al., assignors to Vianova Resins GmbH, MainzKastel, Germany
A coating composition comprising one or more resins having aminoreactive groups; one or more polyamine curing agents; one or more aminourethanes; optionally, pigments, filters, one or more organic solvents, water and conventional additives; and one or more waterdilutable or water-soluble polyurethane resins. SEMICONDUCTOR
LEADFRAME
U.S. Patent 5,935,719. Aug. 10, 1999 D.C. Abbott, assignor to Texas Instruments Inc., Dallas
A leadframe structure, which comprises a leadframe formed from one of copper or copperbased material; and a coating of palladium over the leadframe; and a layer of 10 to 95% copper by weight and the remainder palladium deposited between the leadframe and the coating of palladium. Metal
Finishing