PATENTS :':";' , ...

Granted in the Metal Finishing Field

SPUnIII-DUtOSIT NICUL COMPOSITION ........ aa TlllATMDT U.S. Patent 5,879,437. Mar. 9, 1999 N.P. Hartman, United Kingdom, assignor to Alcan International Ltd" Montreal

A coating composition having a nonvolatile content and comprising a tetraalkyl silicate or a monomeric or oligomeric hydrolysis product thereof, present in a proportion of 40 to 90% by weight on the nonvol­atile content of the composition, and a hydrous oxide sol selected from Type A sols and Type B sols,

present in a concentration such that the oxide of the hydrous oxide sol constitutes 10 to 60% by weight of the nonvolatile content of the coating composition; optionally to­gether with at least one of a surface wetting agent, a marker material, a defoamer, a stabilizer, a corrosion inhibitor, and a catalyst, which as­sists in chain-extension and cross­linking of the monomeric or oligo­meric hydrolysis product; in dispersion in a fluid aqueous me­dium containing 0.1 to 40% by vol­ume of polar organic liquid at least partly miscible with water.

7k t"j~~#ed C-12 AC IIVATOR

for nickel, silver, chrome, gold, copper, point, gloss, and C8rcmics.

Reduces all metalljc oxides to Dswe perfect bond. 100% adhesjon over 1st coot. Passivation is "mingted.

Recommended for use on Wafers and in the Elecronic Ocuit Board Industry.

NOW AVAILABLE AT PUMA ~H.:MI~AL

AN EXPANDED LINE OF PlATING, ANODIZING, PHOSPHATING AND

GALVANIZING PRODUCTS

www.pumachemical.com

Puma Chemi. ca 1

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U.S. Patent 5,879,456. Mar. 9, 1999 E. Curran, Hollywood, Fla.

An integrated system for coating an inner wall surface of a tube comprising a flexible hose having an applicator nozzle attached at a forward end thereof; a payout guide drivingly engaged with the hose for driving the hose and the applicator nozzle into and through the tube; and a fluid sup­ply system in fluid communica­tion with the hose; and a control system.

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Fax: 828 389-4023 • Global: 001-828-389-3074

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