Patents Represented by Attorney, Agent or Law Firm Mary K. Cameron
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Patent number: 6649081Abstract: A deoxidizing liquid composition for aluminum contains in addition to water: fluoroborate anions, preferably from added fluoroboric acid; an acid, preferably nitric acid, that is a substantially stronger acid than either fluoroboric acid or boric acid; an additional oxidizing agent, preferably hydrogen peroxide; and an organic azole compound. Preferably the composition also contains propylene glycol, which is a stabilizer for hydrogen peroxide and also improves deoxidizing results.Type: GrantFiled: March 24, 1999Date of Patent: November 18, 2003Assignee: Henkel CorporationInventors: Philip M. Johnson, Lawrence R. Carlson, Donna A. Garrigues
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Patent number: 6645633Abstract: Autodeposition compositions for polymeric coatings of reduced gloss, good corrosion resistance, and uniform appearance are prepared using a combination of acrylic and epoxy resins.Type: GrantFiled: September 25, 2001Date of Patent: November 11, 2003Assignee: Henkel CorporationInventors: Christopher G. Weller, Elizabeth J. Siebert, Zhiqi Yang, Rajat K. Agarwal, William E. Fristad, Brian D. Bammel
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Patent number: 6638370Abstract: By including nitric acid and hydroxylamine in a manganese phosphating composition and controlling the ratio of nitric to phosphoric acids and the ratio of Total Acid to Free Acid within a specified range, satisfactory manganese phosphate conversion coatings can be obtained within a reasonable time at temperatures much lower than has previously been thought necessary for operating a manganese phosphating composition with no other metal cations (except possibly for iron).Type: GrantFiled: July 26, 2002Date of Patent: October 28, 2003Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Mervet S. Boulos
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Patent number: 6620263Abstract: The phosphate concentration, and therefore the pollution potential, of conventional high quality phosphating compositions containing zinc, manganese, and, optionally, nickel or copper cations, can be reduced without loss of corrosion protective value of the phosphate coatings formed by maintaining concentrations of active ingredients within prescribed ranges. Under the most preferred conditions, the corrosion resistance of phosphated and then painted cold rolled steel and the paint adhesion to phosphated and then painted electrogalvanized steel are improved over values obtained with the now most commonly used commercial high quality low zinc phosphating processes.Type: GrantFiled: September 20, 2002Date of Patent: September 16, 2003Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Michael L. Sienkowski
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Patent number: 6613387Abstract: The anticorrosive properties of a coating autodeposited on a metal substrate are improved by contacting the autodeposited coating with an aqueous solution containing Group IIA or Group IIB metal cations (e.g., calcium or zinc cations) and phosphate anions prior to curing. The rinse solution is preferably acidic and can be prepared, for example, from calcium nitrate and an oxy acid of phosphorus or zinc dihydrogen phosphate. Optionally, the rinse solution also includes an accelerator such as hydroxylamine.Type: GrantFiled: November 21, 2001Date of Patent: September 2, 2003Assignee: Henkel CorporationInventors: Rajat K. Agarwal, Douglas Brown, William E. Fristad, Graham Butcher, Zafar Iqbal
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Patent number: 6596674Abstract: The invention is a liquid composition of matter useful as a metal working lubricant. The composition comprises a primary lubricity component, such as a polyether or polyether ester, and dissolved salts of carboxylic acids. The composition preferably contains not more than 0.2 percent of any element except carbon, hydrogen, oxygen, alkaline earth metals, alkali metals, inorganically bonded halogens, inorganically bonded nitrogen, inorganically bonded sulfur, and inorganically bonded phosphorus.Type: GrantFiled: February 27, 2001Date of Patent: July 22, 2003Assignee: Henkel CorporationInventor: Frank K. Botz
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Patent number: 6563007Abstract: Polyetherols based on solid initiator substances and liquid, hydroxyl-containing coinitiators are prepared by a catalyzed addition reaction of alkylene oxides by a process in which the initiator combination contains diols carrying ethoxy structures, the ratio of the average number of hydroxyl groups per mole of initiator combination to the number of ethoxy structures in the polyetherol being from 1:0.2 to 1:1.8 and the ratio of the amounts by weight of the diols carrying ethoxy structures to the average molecular weight of the polyetherol being from 1:2 to 1:15. The polyetherols prepared by this process are used for the preparation of PUR, in particular, rigid PUR foams.Type: GrantFiled: July 26, 2001Date of Patent: May 13, 2003Assignee: BASF AtiengesellschaftInventors: Stefan Dinsch, Jürgen Winkler, Gottfried Knorr, Michael Reichelt, Gerd Höppner, Peter von Malotki
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Patent number: 6558480Abstract: A conversion coating that does not substantially diminish the luster of a metal surface on which it is coated nor impair adhesion to the surface of lacquers and printing inks commonly used on beverage containers may be provided by contacting the metal surface with an aqueous liquid composition comprising water and at least the following components: (A) a component of one or more dissolved transition metal compounds that contain zirconium and may also include titanium, provided that zirconium constitutes more than 30% of the moles of the total moles or zirconium and titanium; (B) a component of at least one dissolved compound that contains inorganically bonded fluorine and is not part of component (A); and (C) a component of dissolved organic polymer molecules.Type: GrantFiled: July 23, 2001Date of Patent: May 6, 2003Assignee: Henkel CorporationInventors: Gary L. Rochfort, Timm L. Kelly, Richard D. Banaszak
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Patent number: 6548468Abstract: An aqueous based cleaner containing at least inorganic alkalinizing agents and surfactants is capable of removing long dried paint and thick carbonaceous deposits from used aircraft engines, sometimes without using organic solvents at all and always without using more than a few % of such solvent, thereby greatly reducing pollution potential from this difficult cleaning operation. A preferred cleaner also includes a hydrotroping agent, and the cleaner may also contain corrosion inhibitor, sequestering agent for hard water cations, and other materials.Type: GrantFiled: November 3, 2000Date of Patent: April 15, 2003Assignee: Henkel CorporationInventors: Mervet S. Boulos, Craig S. Caldwell
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Patent number: 6530999Abstract: Phosphate conversion coatings having very fine crystal size are obtained using liquid compositions containing phosphate, zinc cations and relatively low concentrations of Co, Ni and Mn.Type: GrantFiled: October 10, 2001Date of Patent: March 11, 2003Assignee: Henkel CorporationInventors: Kevin K. Meagher, Brian B. Cuyler
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Patent number: 6506811Abstract: Carbamate solutions are obtainable by reacting at least one alkanolamine with carbon dioxide in, as solvent, at least one organic compound having a molecular weight of from 60 to 600 and containing at least one hydroxyl group, wherein the carbamate contains at least 0.Type: GrantFiled: September 28, 2001Date of Patent: January 14, 2003Assignee: BASF AktiengesellschaftInventors: Peter Woo, Anke Schulze, Edmund Stadler, Dieter Tintelnot, Udo Hadick, Ralf Hinrichs, Horst Hürkamp, Klaus Sobolewski
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Patent number: 6495611Abstract: The polyisocyanate polyaddition products comprise hydrophobic compounds plus at least one further compound selected from the group consisting of: (i) organic, cyclic compounds having a molecular weight of from 200 to 3000 g/mol, (ii) salts of metals of transition groups I, II and/or VIII, (iii) organic and/or inorganic acid anhydrides, (iv) cyclic sulfonic esters and/or sulfones, (v) lactones, lactams and/or cyclic esters and/or (vi) &agr;,&bgr;-unsaturated carboxylic acids, &agr;,&bgr;-unsaturated carboxylic acid derivatives, &agr;,&bgr;-unsaturated ketones and/or &agr;,&bgr;-unsaturated aldehydes.Type: GrantFiled: January 24, 2001Date of Patent: December 17, 2002Assignee: BASF AktiengesellschaftInventors: Andreas Arlt, Sarbananda Chakrabarti, Martin Kreyenschmidt, Dieter Rodewald
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Patent number: 6433124Abstract: In a compound of the formula I (reactive polymer), L is a, polymer, XY is a reactive radical which is inert toward NCO groups and splits off one or more protective groups Y under acidic, neutral or basic conditions and the radical X bears, after Y has been split off, at least two groups which are reactive toward isocyanates. Also provided are processes for preparing such a polymer and for preparing V a polymer polyol which is obtainable by reacting a polymer of the formula I with an acid or base. A polymer polyol as is obtainable by treatment of a reactive polymer according to the present invention in the neutral, acidic or basic range can be used to produce a polyaddition product or polycondensation product.Type: GrantFiled: April 28, 2000Date of Patent: August 13, 2002Assignee: BASF AktiengesellschaftInventors: Bernd Bruchmann, Hans Renz, Heinz-Dieter Lutter
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Patent number: 6433219Abstract: A process for preparing methylenedianiline by reacting aniline with formaldehyde in the presence of acid catalysts comprising, in a semicontinuous process, introducing aniline with or without acid catalyst, feeding formaldehyde with or without acid catalyst through a mixing element into a circuit in which aniline with or without acid catalyst and with or without previously added formaldehyde is circulated and, after feeding in at least 50% of the total amount of formaldehyde to be fed in, heating the reaction mixture to a temperature above 75° C. In addition, the invention relates to a process for preparing polyisocyanates by phosgenation of amines obtainable in this manner and to the polyisocyanates obtainable by this process.Type: GrantFiled: September 8, 2000Date of Patent: August 13, 2002Assignee: BASF AktiengesellschaftInventors: Eckhard Ströfer, Jan Jacobs, Wilfried Seyfert, Hans Volkmar Schwarz, Olaf Schweers, Volker Scharr, Ulrich Penzel
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Patent number: 6413628Abstract: A process for forming a titanium carbonitride cemented carbide cutting insert, said cemented carbide is comprised of more than 70 percent by weight tungsten carbide and has a matrix binder comprising cobalt with a cobalt enriched stratified surface. The process comprises chemically vapor depositing a layer of titanium carbonitride on said cemented carbide substrate by heating gaseous reactants comprising titanium chloride, methane, hydrogen, and nitrogen with an optimum methane/nitrogen ratio, under suitable conditions to form a titanium carbonitride coated insert having an eta phase in the cemented carbide substrate adjacent said titanium carbonitride coating.Type: GrantFiled: March 23, 1999Date of Patent: July 2, 2002Assignee: Valenite Inc.Inventor: Krishnan Narasimhan
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Patent number: 6409435Abstract: An indexable insert is located on a toolholder with reference to bearing surfaces on the insert and the toolholder which are proximate to the active cutting edge. These bearing surfaces are internal to the peripheral (side) flanks of the insert. Location of the insert in the toolholder is substantially independent of the relation between the toolholder pocket sidewalls and the peripheral flanks of the insert, thereby eliminating sources of error from insert manufacture and pocket manufacture. The insert and toolholder have locating units disposed thereon adapted to matingly engage each other when the insert is placed in the toolholder. At least one of the locator elements has a bearing surface or surfaces that extends through 360° and resulting in less movement of the insert during use.Type: GrantFiled: July 3, 2000Date of Patent: June 25, 2002Assignee: Valenite Inc.Inventors: Yevgeny Kocherovsky, Lee Reiterman, Foye Powell, Edward Santimaw
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Patent number: 6391950Abstract: Disclosed is a PVC pipe cement composition that comprises a polymeric material of a methyl methacrylate homopolymer or copolymer, a styrene-acrylonitrile polymer, and a rubber grafted with at least a methacrylic acid ester of a C1 to C8 alkanol; and at least about 10% by weight solvent.Type: GrantFiled: October 1, 1997Date of Patent: May 21, 2002Assignee: BASF CorporationInventor: Mark Waldrop
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Patent number: 6380367Abstract: A continuous process for the formation of sucrose based polyols is disclosed. The process comprises the steps of continuously forming an aqueous sucrose solution which is continuously combined with a catalyst and an alkylene oxide and flowed through a first spiral reaction tube. The alkylene oxide substantially completely reacting with the aqueous sucrose solution occurs to form a pre-polymer reaction product in the first spiral reaction tube. The pre-polymer reaction product is continuously flowed from the first reaction tube and unreacted water from the pre-polymer reaction product is removed. The water stripped pre-polymer reaction product is continuously flowed through a second spiral reaction tube and additional alkylene oxide is continuously added to the second spiral reaction tube. The alkylene oxide reacts with the pre-polymer reaction product in the second spiral reaction tube to form a polyol.Type: GrantFiled: November 18, 1999Date of Patent: April 30, 2002Assignee: BASF CorporationInventors: Werner Hinz, Edward Michael Dexheimer
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Patent number: 6372164Abstract: A visual effect, such as a granite-look, is produced in a thermoplastic product by directly applying a sufficient amount of at least one color-containing thermoplastic resin system to the surface of an extruded sheet of a thermoplastic resin. The color-containing thermoplastic resin system is applied onto the extruded sheet after it emerges from the die and prior to it entering the rollstack.Type: GrantFiled: May 26, 1999Date of Patent: April 16, 2002Assignee: BASF CorporationInventors: James H. Bennett, Steve Wasson, Gary Kogowski
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Patent number: 6350911Abstract: The invention relates to a process for the preparation of amines by hydrogenation of nitro compounds, which comprises carrying out the hydrogenation in a vertical reactor whose length is greater than its diameter, having a downward-facing jet nozzle arranged in the upper region of the reactor through which the starting materials and the reaction mixture are fed in, and having an outlet at any desired point of the reactor, through which the reaction mixture is fed back to the jet nozzle in an external circuit by means of a conveying means, and having flow reversal in the lower region of the reactor.Type: GrantFiled: June 11, 2001Date of Patent: February 26, 2002Assignee: BASF AktiengesellschaftInventors: Michael Sander, Ulrich Penzel, Hans Volkmar Schwarz, Eckhard Ströfer, Dieter Stützer, Jörn Müller, Markus Maurer, Peter Zehner, Ekkehard Schwab, Ralf Böhling, Dominic Vanoppen