Patents by Inventor Andreas Lindert
Andreas Lindert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110056516Abstract: An environmentally acceptable and comparatively safe acid cleaning solution containing sulfuric acid, water and amine containing inhibitors that adequately remove oxidation or contaminants from surfaces without excessively damaging equipment. The sulfuric acid is effective in removing impurities and contaminants, while the amine moieties or amine salts reduce the otherwise damaging effect of sulfuric acid on equipment and on human skin and tissue.Type: ApplicationFiled: November 17, 2010Publication date: March 10, 2011Inventors: Richard E. ADAIR, Andreas Lindert
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Publication number: 20090148335Abstract: A process for treating metal to remove oxidation or contaminants or prepare the metal for processing without unduly damaging the metal. A formulation of sulfuric acid, water, and either ammonia or a sulfate salt of ammonia (or both) is used to treat the metal. The sulfuric acid is effective in removing impurities and contaminants, while the ammonia or ammonia salt reduces the otherwise damaging effect sulfuric acid has on metal.Type: ApplicationFiled: December 15, 2008Publication date: June 11, 2009Inventors: Richard E. Adair, Andreas Lindert
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Patent number: 6361622Abstract: A composition and method for coating and touching up a metal surface is provided. The composition contains from about 0.5 to about 240 millimoles per kilograms of a fluorometallate ion, from about 0.5 grams/liters to about 10 grams/liter of phosphorous-containing inorganic oxy anions calculated at their stoichiometric equivalent as H3PO4; from about 0.05 g/l to about 3.5 g/l of hexavalent chromium and from about 0.10 g/l to about 2.20 g/l of trivalent chromium ions.Type: GrantFiled: February 22, 2000Date of Patent: March 26, 2002Assignee: Henkel CorporationInventors: David R. McCormick, Andreas Lindert
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Patent number: 6172123Abstract: A method for preventing or breaking oil and water mixtures comprising adding thereto a branched reaction product of A) at least one linking compound of formula I R1(X)3 (I) wherein each X group is a halogen atom or one X group is a halogen atom and two X groups with two adjacent carbon atoms in the R1 group and an oxygen atom from an epoxy group, and R1 is an alkanetriyl group containing from 3 to 10 carbon atoms; B) at least one compound of formula II and/or formula III R2(OA)nOH (II) wherein R2 is an aliphatic group containing from 3 to 36 carbon atoms, n is a number of from 0 to 200, and each OA group is independently an ethyleneoxy, 1,2-propyleneoxy, or 1,2-butyleneoxy group.Type: GrantFiled: July 30, 1999Date of Patent: January 9, 2001Assignee: Henkel CorporationInventors: Andreas Lindert, Michael S. Wiggins
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Patent number: 5891952Abstract: Processes for the preparation of polyphenol polymers useful as surface coatings wherein the process is carried out in the absence of organic solvents, and the polyphenol polymers are the reaction products of a phenolic polymer or copolymer, an amine, and an aldehyde, ketone, or mixture thereof; and the aqueous solutions resulting therefrom.Type: GrantFiled: October 1, 1997Date of Patent: April 6, 1999Assignee: Henkel CorporationInventors: David R. McCormick, Andreas Lindert, John R. Pierce
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Patent number: 5298289Abstract: A composition for treatment and after treatment of surfaces, especially metals, with derivatives of polyphenol compounds is provided. The derivatives include substituted aminomethyl groups on at least some of the phenyl rings in the polyphenol polymers, with molecular weights within the range of about 700 to about 70,000 being preferred. The compositions are particularly useful for treating chromated aluminum surfaces prior to painting, to improve corrosion resistance, and when combined with surfactants, for treating plastic and painted surfaces to improve rinsability without water breaks.Type: GrantFiled: July 8, 1993Date of Patent: March 29, 1994Assignee: Henkel CorporationInventors: Andreas Lindert, Gerald J. Cormier, John R. Pierce
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Patent number: 5266410Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. A composition for treatment and after treatment of metal with polyphenol compounds is provided. The present invention includes novel derivatives of polyphenol compounds which are useful in surface treatment solutions of dispersions. A method for using these solutions or dispersions is also provided. The molecular weight of the polyphenols used to form the derivatives of the present invention are in the range of from about 360 to 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: March 18, 1992Date of Patent: November 30, 1993Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
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Patent number: 5116912Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. A composition for treatment and after treatment of metal with polyphenol compounds is provided. The present invention includes novel derivatives of polyphenol compounds which are useful in surface treatment solutions or dispersions. A method for using these solutions or dispersions is also provided. The molecular weight of the polyphenols used to form the derivatives of the present invention are in the range of from about 360 to 30,000 or greater. The resulting derivatives of the present invention typically have molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: June 6, 1991Date of Patent: May 26, 1992Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormic, William D. Zimmermann
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Patent number: 5068299Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. Novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles is provided. Novel surface treatment solutions or dispersions, and methods for using these solutions is provided. Carbohydrate-modified polyphenol compounds are utilized in the present invention. The molecular weight of the polyphenols used in the preperation of derivatives of the present invention are in the range of about 360 to about 30,000 or greater. The resulting derivatives will typically have a molecular weight of up to about 2,000,000 with molecular weight within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: August 24, 1990Date of Patent: November 26, 1991Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
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Patent number: 5063089Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. The present invention comprises novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles. The present invention also encompasses novel surface treatment solutions or dispersions, and methos of using these solutions or dispersions. The compositions of the present invention include amine oxide containing polyphenol compounds and derivatives thereof. The molecular weight of the polyphenols used in derivatives of the present invention have molecular weights of from about 360 to about 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: September 26, 1990Date of Patent: November 5, 1991Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick
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Patent number: 5039770Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. A composition for treatment and after treatment of metal with polyphenol compounds is provided. The present invention includes novel derivatives of polyphenol compounds which are useful in surface treatment solutions or dispersions. A method for using these solutions or dispersions is also provided. The molecular weight of the polyphenols used to form the derivatives of the present invention are in the range of from about 360 to 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: December 4, 1987Date of Patent: August 13, 1991Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
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Patent number: 4970264Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. The present invention comprises novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles. The present invention also encompasses novel surface treatment solutions or dispersions, and methods of using these solutions or dispersions. The compositions of the present invention include amine oxide containing polyphenol compounds and derivative thereof. The molecular weight of the polyphenols used in derivatives of the present invention have molecular weights of from about 360 to about 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: December 4, 1987Date of Patent: November 13, 1990Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick
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Patent number: 4963596Abstract: A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. Novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles is provided. Novel surface treatment solutions or dispersions, and methods for using these solutions is provided. Carbohydrate-modified polyphenol compounds are utilized in the present invention. The molecular weight of the polyphenols used in the preparation of derivatives of the present invention are in the range of about 360 to about 30,000 or greater. The resulting derivatives will typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.Type: GrantFiled: December 4, 1987Date of Patent: October 16, 1990Assignee: Henkel CorporationInventors: Andreas Lindert, John R. Pierce, David R. McCormick, William D. Zimmermann
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Patent number: 4944812Abstract: A vegetable tannin is condensed with formaldehyde and an amine to provide an acid soluble product which is useful in a metal treatment solution to enhance corrosion resistance and paint adhesion characteristics of a metal surface.Type: GrantFiled: November 16, 1988Date of Patent: July 31, 1990Assignee: Henkel CorporationInventors: Andreas Lindert, Stephen M. Wolpert
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Patent number: 4532309Abstract: A stable water soluble epoxy resin suitable for use as a coating material is made by grafting an acid functional vinyl monomer onto unsaturated functional sites on an epoxy resin backbone.Type: GrantFiled: November 28, 1980Date of Patent: July 30, 1985Assignee: Parker Chemical CompanyInventor: Andreas Lindert
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Patent number: 4517028Abstract: A metal surface is treated by contacting the surface with a solution comprising an effective amount of a soluble or dispersible treatment compound selected from the group consisting of a polymer having the following general formula, acid salts thereof, and mixtures thereof: ##STR1## where: R.sub.1 through R.sub.3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms;each Y is hydrogen, Z, CR.sub.4 R.sub.5 OR.sub.6, CH.sub.2 Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms;Z is ##STR2## R.sub.4 through R.sub.10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R.sub.4 through R.sub.10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; andn is from 2 up to a number at which the polymer is not soluble or dispersible.Preferably, the solution is an aqueous solution and "Z" moieties are present in sufficient amount that the compound is water soluble or water dispersible.Type: GrantFiled: May 9, 1983Date of Patent: May 14, 1985Assignee: Parker Chemical CompanyInventor: Andreas Lindert
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Patent number: 4465816Abstract: A stable, water soluble epoxy resin suitable for use as a coating material is made by grafting a thio-acid onto an unsaturated functional site on an epoxy resin backbone.Type: GrantFiled: November 28, 1980Date of Patent: August 14, 1984Assignee: Parker Chemical CompanyInventor: Andreas Lindert
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Patent number: 4457790Abstract: A treatment solution for contacting a metal surface comprises:from about 0.001% to about 1.0% of a metal ion selected from the group consisting of titanium, zirconium and hafnium and mixtures thereof; andan effective amount of a soluble or dispersible treatment compound selected from the group consisting of a polymer having the following general formula, acid salts thereof, and mixtures thereof: ##STR1## where: R.sub.1 through R.sub.3 are hydrogen or an alkyl group having from 1 to about 5 carbon atoms;each Y is hydrogen, Z, CR.sub.4 R.sub.5 OR.sub.6, CH.sub.2 Cl, or an alkyl or aryl group having from 1 to 18 carbon atoms;Z is ##STR2## R.sub.4 through R.sub.10 are hydrogen, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercapto-alkyl or phospho-alkyl moiety, said R.sub.4 through R.sub.10 being of carbon chain lengths up to a length at which the compound is not soluble or dispersible; andn is from 2 up to a number at which the polymer is not soluble or dispersible.Type: GrantFiled: May 9, 1983Date of Patent: July 3, 1984Assignee: Parker Chemical CompanyInventors: Andreas Lindert, Jack A. Kramer
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Patent number: 4433015Abstract: An aqueous solution comprising an effective amount of a water soluble or water dispersible compound selected from the group consisting of a polymer having the following general formula, acid salts thereof and mixtures thereof: ##STR1## where: n=from 2 up to a number at which the polymer is not water soluble or water dispersible;X=H or Z; ##STR2## Y=H, Z, Cr.sub.5 R.sub.6 OR.sub.7, or CH.sub.2 Cl; R.sub.1 through R.sub.7 =H, or an alkyl, aryl, hydroxy-alkyl, amino-alkyl, mercaptoalkyl or phospho-alkyl moiety, said R.sub.1 through R.sub.7 being of carbon chain lengths up to a length at which the compound is not water soluble or dispersible;wherein at least one of X or Y=Z and the Z moieties are present in sufficient amount that the compound is water soluble or water dispersible.This solution is useful in the treatment of metal surfaces to impart corrosion resistance and paint adhesion characteristics thereto.Type: GrantFiled: April 7, 1982Date of Patent: February 21, 1984Assignee: Parker Chemical CompanyInventor: Andreas Lindert
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Patent number: RE40406Abstract: A composition and method for coating and touching up a metal surface is provided. The composition contains from about 0.5 to about 240 millimoles per kilogram of a fluorometallate ion, from about 0.5 grams/liters to about 10 grams/liter of phosphorous-containing inorganic oxy anions calculated at their stoichiometric equivalent as H3PO4; from about 0.05 g/l to about 3.5 g/l of hexavalent chromium and from about 0.10 g/l to about 2.20 g/l of trivalent chromium ions and a surfactant.Type: GrantFiled: March 26, 2004Date of Patent: July 1, 2008Assignee: Henkel KGaAInventors: David R. McCormick, Andreas Lindert