Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7361632 | Water soluble glass as corrosion protector in dishwashing machines A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P2O5, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO3 and up to 25 mole % of ZnO. ... | 04/22/2008 |
| 7029769 | Insulation film, powder for magnetic core and powder magnetic core and processes for producing the same An insulation film whose requisite constituent elements are first elements and a second element. The first elements include B, P, O and Fe. The second element can generate cations whose hexa-coordinated ion radius, defined by Shannon, R. D., is 0.073 nm or more, and... | 04/18/2006 |
| 6835460 | Dry-in-place zinc phosphating compositions and processes that produce phosphate conversion coatings with improved adhesion to subsequently applied paint, sealants, and other elastomers Excellent adhesion to subsequently applied paint or elastomer is obtained by coating a metal substrate with a phosphate conversion coating by contact with a liquid phosphating solution that contains zinc cations, phosphate anions, and at least one adhesion promoter ... | 12/28/2004 |
| 6723178 | Process for forming a phosphate conversion coating on metal A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent ca... | 04/20/2004 |
| 6677053 | Surface-treated steel sheet and production method therefor A surface-treated steel sheet includes a steel sheet, an Al--Zn-base alloy plating layer formed on the steel sheet, a chemical conversion film provided on the alloy plating layer, and a concentric layer of a Cr compound that is formed on the alloy plating... | 01/13/2004 |
| 6478885 | Phosphating processes and products therefrom with improved mechanical formability When a phosphate ester or a dispersed wax is added to a conventional liquid phosphate conversion coating composition, the resulting phosphate coating formed on a metal substrate has a lower coefficient of friction after being oiled than it would have had ... | 11/12/2002 |
| 6395106 | Conversion coatings prepared or treated with calcium hydroxide solutions A conversion coating process that forms a stable and corrosion-resistant oxide layer on metal or metal oxide substrates or layers. Particularly, the conversion coating process involves contacting the metal or metal oxide substrate or layer with the aqueou... | 05/28/2002 |
| 6395105 | Phosphating process with a metalliferous re-rinsing stage A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of... | 05/28/2002 |
| 6376092 | Surface-treated steel sheet and manufacturing method thereof The present invention has an object to provide a surface-treated steel sheet which has highly balanced corrosion resistance and formability, and satisfies fundamental properties required mainly for steel sheets for automobile body, and a manufacturing met... | 04/23/2002 |
| 5976272 | No-rinse phosphating process A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of ... | 11/02/1999 |
| 5968240 | Phosphate bonding composition A heat curable protective coating composition for providing barrier protection to a solid substrate. The coating composition comprises an aqueous solution of phosphate ions and nitrate ions and at least one species of metal ion having a valency greater th... | 10/19/1999 |
| 5868874 | Zinc phosphate conversion coating compositions and process A process for forming a zinc phosphate coating on an aluminum substrate is provided to obtain good coverage by the coating. The coating preferably has a columnar or nodular crystal morphology and a coating weight of at least about 150 mg/ft2. T... | 02/09/1999 |
| 5525431 | Zinc-base galvanized sheet steel excellent in press-formability, phosphatability, etc. and process for producing the same A zinc-base galvanized sheet steel which comprises zinc-base plated sheet steel and, formed on the plating layer surface, an inorganic covering layer which contains at least one inorganic oxide in an amount of 1-500 mg/m2 in terms of the weight... | 06/11/1996 |
| 5328526 | Method for zinc-phosphating metal surface A zinc phosphate coating film suitable for cationic electrodeposition coating and superior in both of coating film adhesion and corrosion resistance (especially, warm brine resistance and scab resistance) is formed by a conversion treatment of a metal sur... | 07/12/1994 |
| 5268041 | Process for phosphating metal surfaces In a process of phosphating metal surfaces phosphating solutions are employed which are substantially free of nickel and contain ______________________________________ 0.3 to 1.7 g/l Zn 0.2 to 4.0 g/l Mn 0.001 ... | 12/07/1993 |
| 5203930 | Process of forming phosphate coatings on metal surfaces A process for forming phosphate coatings on metal surfaces is provided which comprises the steps of contacting said metal surface with an Fe(II)-containing phosphating solution comprising 0.4 to 30 g/l Zn 4 to 30 g/l P2 O5 5 to 50 g/l NO | 04/20/1993 |
| 5141576 | Titanium composite materials coated with calcium phosphate compound and process for production thereof A titanium composite material is disclosed which comprises a titanium or titanium alloy substrate, a base layer formed thereon of a calcium phosphate compound resulting from calcination of a hydrochloric or nitric acid aqueous solution of the calcium phos... | 08/25/1992 |
| 4944813 | Process for phosphating metal surfaces The present invention relates to a process for phosphating metal surfaces, and more specifically of surfaces of iron, zinc, and aluminum and the alloys thereof as a pretreatment for cold working wherein the surfaces without previous activation are contact... | 07/31/1990 |
| 4849031 | Process of producing phosphate coatings on metal surfaces Disclosed is a process of producing phosphate coatings on surfaces which consist of aluminum or its alloys and of at least one of the materials steel and galcanized steel by spraying or by spraying and dipping. Uniform phosphate layers having a high cover... | 07/18/1989 |
| 4717431 | Nickel-free metal phosphating composition and method for use Nickel-free aqueous phosphating compositions containing zinc ions, cobalt ions, phosphate ions, and at least two additional cations; methods for using such composition, and products of the methods.... | 01/05/1988 |
| 4622078 | Process for the zinc/calcium phosphatizing of metal surfaces at low treatment temperatures The invention relates to a process for phosphatizing metal surfaces with an acidic phosphatizing solution containing zinc ions, calcium ions, phosphate ions and accelerators and, optionally, other additives, characterized in that, after degreasing and wit... | 11/11/1986 |
| 4612060 | Process for controlling zinc phosphate treating solutions A process for controlling the zinc or zinc and nickel content of a zinc phosphate conversion coating solution employs the addition of EDTA and titration with calcium ion using a calcium ion electrode. Preferably to a second sample is added EDTA and a thio... | 09/16/1986 |
| 4264378 | Chromium-free surface treatment A chromium-free process for phosphatizing a metal surface provides for applying to the surface an aqueous acidic solution having pH 1.5 to 3.0 and containing phosphate; a metal cation of valence two or greater; molybdate, tungstate, vanadate, niobate or t... | 04/28/1981 |
| 4140551 | Low temperature microcrystalline zinc phosphate coatings, compositions, and processes for using and preparing the same Microcrystalline zinc phosphate coatings and compositions for their formation are provided, which can be applied to metals at low temperatures, the coating compositions containing as principal ingredients a specific balance of calcium and zinc together wi... | 02/20/1979 |
| 4110128 | Solution and procedure for depositing a protective coating on galvanized steel parts, and solution regeneration procedure Solution and procedure for depositing a coating, comprising hydrated zinc pyrophosphate, on the surfaces of galvanized steel parts, to protect against corrosion in the presence of water. The aqueous solution contains, per liter of final solution, hexameta... | 08/29/1978 |
| 4108690 | Method for producing an amorphous, light weight calcium phosphate coating on ferrous metal surfaces A method is disclosed for producing a non-crystalline, light weight tightly adherent coating of calcium phosphate on ferrous metal surfaces. In this method, the ferrous metal surface is treated with a coating solution containing calcium phosphate together... | 08/22/1978 |
| 3996072 | Phosphate coating process and control of the phosphate coating solution A phosphate coating solution for forming coatings on a metal surface is contacted with an anion-exchanger loaded or contacted with nitrite ions, whereby the nitrate ions present in the coating solution are replaced by the nitrite ions. This process permit... | 12/07/1976 |
