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COMPOsmONu.s. Patent 5,868,819. Feb. 9, 1999D.J. Guhde et al., assignors to MetalCoatings International Inc.,Chardon, OhioA chrome-free, stable, waterreducible coating composition ofaqueous medium for applicationto and heat curing on a substratefor providing corrosion protectionthereto, said composition comprising water t~ provi.d.e the aqu~aUS medium; hIgh-bOlhng orgamcliquid; particulate metal; thickener; and water-reducible, epoxyfunctional silane binding agentcontributing from 3 to 20% byweight of the total compositionweight.
AQUEOUS COAnNG COMPOSmON
u.s. Patent 5,868,820. Feb. 9, 1999W.J. Claffey, assignor to PPGIndustries Inc., Pittsburgh
An aqueous metal surface treatment composition comprising atleast one polyhydroxy-functionalcyclic compound selected from thegroup consisting of polyhydroxyphenolic compounds and heterocyclic nitrogen-containing compounds having polyhydroxy functionality; phosphate ions; at leastone oxidizer-accelerator; and water.
PAINT GUN INCORPORAnNG ALASIR DIVICIU.S. Patent 5,868,840. Feb. 9, 1999R.J. Klein II and D.L. Sevey,assignors to The University ofNorthern Iowa Foundation, CedarFalls, Iowa
A hand-held spray gun for applying a liquid coating to a surfacecomprising a light generating device disposed within the interiorof the housing, wherein the lightgenerating device includes alight-emitting arrangement forcommunicating a light beam exteriorly of the housing and towardthe surface to be coated; a lightreceiving device mounted to thehousing and including a light receiving arrangement having anexposure exteriorly of the housingfor receiving light from the lightemitting arrangement reflectedfrom the surface to be coated; andan operator interface interconnected with the light receiving device for conveying information tothe operator pertaining to appli-
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cation of the coating to the surfacein response to the light receivingdevice.
PAlNI' .....ROO11I COMI'IIOLUIIU.S. Patent 5,868,845. Feb. 9, 1999T. Rouuelin, assignor to BehrSystems, Rochester Hills, Mich.
A paint spray system including aplurality of paint sprayers connected in series for communication, each sprayer including apaint spray head; and a computerincluding a communication interface connected in series with thepaint sprayer, said computersending information to the paintsprayers, said paint sprayersspraying paint based upon the information from the computer.
C••OM ..TRIA.INI' O' ALUMINUMU.S. Patent 5,868,872. Feb. 9, 1999U. Karmaschek and R. Mady,assignors to Henkel KGA.Duesseldorf, Germany
A process for the production of achromium·free conversion coatingon a surface of aluminum or itsalloys by a no-rinse process bytreatment with an aqueous solution having a pH value of 1 to 3.5and containing 2.2 to 22.0 gIL ofZr(IV), 1.4 to 14.0 gIL of Ti(lV), orboth; 2.4 to 24.0 gIL of orthophosphate; 3.0 to 30.0 gIL of fluoride;and 0.15 to 1.5 gIL of a watersoluble or homogeneously waterdispersible organic film former,wherein the solutions are at temperatures of 50 to 125°C dried on
the surface without rinsing aftera contact time of 1 to 40 sec between the surface and the aqueous solution.
......... I'0Il ........'11..IIITALU.S. Patent 5,868,873. Feb. 9, 1999K. Brown et al., assignors to BrentInternational PLC,Buckinghamshire, England
A method for preparing a prerinsing composition for phosphatingmetal surfaces including formingsolid water-insoluble manganese(II) phosphate; heating the solidat a temperature greater than120·C to form a heated solid; andadding the heated solid to anaqueous liquid to form a suspension.
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