Patents by Inventor Peter Kresse
Peter Kresse 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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Patent number: 5389137Abstract: This invention relates to a process for dyeing asphalt and/or bitumen with inorganic granulated pigments, which is characterized in that inorganic pigments, to which have been added oils which possess a kinematic viscosity at 40.degree. C. (DIN 51 561) of 1.6 to 1,500 mm.sup.2 /s, and/or waxes, polyols, polyethers and paraffins with dropping points (DIN 51 801, ASTM D 566) of between 50.degree. and 180.degree. C. as binding agents, are granulated and mixed with the asphalt and/or bitumen.Type: GrantFiled: April 19, 1993Date of Patent: February 14, 1995Assignee: Bayer AGInventors: Gunter Linde, Manfred Eitel, Gerald Buchner, Peter Kresse, Gunther Teichmann
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Patent number: 5059250Abstract: Red iron oxide pigments with improved coloring properties wherein the isoelectric point of the pigments is greater than 7.Type: GrantFiled: March 24, 1986Date of Patent: October 22, 1991Assignee: Bayer AktiengesellschaftInventors: Wilfried Burow, Horst Brunn, Peter Kresse, Hans Sander
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Patent number: 5055136Abstract: A heat-stable iron oxide black pigment resistant to hydrothermal treatment in air at temperatures above 180.degree. C. and which has a specific BET surface of 0.5 to 5 m.sup.2 /g is useful as a coloring agent for building materials, paints, cements, bricks and so forth and is prepared by reacting an aqueous solution of FeOOH, iron (II) salts and alkalis at elevated temperature and precipitating iron oxide from the solution with Na.sub.2 CO.sub.3 at temperatures in the range from 80.degree. C. to the boiling point of the solution.Type: GrantFiled: June 14, 1989Date of Patent: October 8, 1991Assignee: Bayer AktiengesellschaftInventors: Jurgen Wiese, Gunter Buxbaum, Peter Kresse
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Patent number: 4492600Abstract: This invention relates to corrosion-inhibiting paints and lacquers containing pigments comprising an organic corrosion inhibitor intercalated into an inorganic matrix said pigment having the formula wherein ##EQU1## wherein Me(II)O is at least one divalent metal oxide;Me(III).sub.2 O.sub.3 is at least one trivalent metal oxide;A is at least one inorganic acid anhydride;I is at least one organic corrosion inhibitor;aq is from 0.5 to 9 moles of water; andx, y and z are whole or fractional numbers andx has a value of from 0 to 1,y has a value of from 0 to 0.7 andz has a value of from greater than 0 to 0.4,with the proviso that the organic corrosion inhibitor is at least 0.5% by weight of inorganic material a process for the production of these pigments and their use in paints, lacquers and lubricants.Type: GrantFiled: July 14, 1982Date of Patent: January 8, 1985Assignee: Bayer AktiengesellschaftInventors: Horst Brunn, Franz Hund, Wolfgang Rambold, Peter Kresse, Gerd von Szadkowski
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Patent number: 4443264Abstract: A zinc ferrite pigment comprising, by weight, about 99.8 to 90% of ZnFe.sub.2 O.sub.4 and about 0.2 to 10% of the component system (1-x)Al.sub.2 O.sub.3 and xP.sub.2 O.sub.5 wherein 0<x<1 is produced by calcining a suitable mixture of compounds. The resulting pigments are of high color quality and are substantially halogen-free, rendering them especially useful industrially even as anti-corrosion pigments.Type: GrantFiled: August 30, 1982Date of Patent: April 17, 1984Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Willi Hennings, Horst Brunn, Peter Kresse, Wolfgang Rambold
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Patent number: 4285726Abstract: An anti-corrosion pigment comprising about 30.0 to 2.0 mole % of CaO and about 70.0 to 98.0 mole % of Me.sub.2 O.sub.3, wherein Me.sub.2 O.sub.3 is (1-x) Al.sub.2 O.sub.3 and x Fe.sub.2 O.sub.3, x is from 0 to 1 and up to about 25 mole % of the Fe.sub.2 O.sub.3 may be replaced by the corresponding quantity of Mn.sub.2 O.sub.3, and having a specific surface area according to BET of about 0.1 to 200 m.sup.2 /g and a percentage weight loss per gram of pigment, as determined by the Thompson corrosion test, of less than about 0.05% per gram of pigment is produced by calcining the corresponding metal oxides or materials which form the metal oxides on calcination at about 200.degree. to 1100.degree. C. The pigments are especially useful in making up anti-corrosion paints and lacquers.Type: GrantFiled: July 10, 1980Date of Patent: August 25, 1981Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Peter Kresse
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Patent number: 4211565Abstract: An anti-corrosion pigment comprising about 30 to 70 mole % of an oxide of at least one metal selected from the group consisting of magnesium, calcium and zinc, about 70 to 30 mole % of Fe.sub.2 O.sub.3, and up to about 20 mole % of Cr.sub.2 O.sub.3, the pigment having a specific surface of about 1 to 30 m.sup.2 /g and exhibiting a weight loss of less than about 0.05% per gram of pigment by the Thomson corrosion test, is produced by calcining the corresponding metal oxides. The temperature is about 200.degree. to 650.degree. C. in the absence of chromium and about 200.degree. to 900.degree. C. when chromium is present.Type: GrantFiled: July 10, 1978Date of Patent: July 8, 1980Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Gunter Linde, Peter Kresse
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Patent number: 4185141Abstract: In the production of a coated structural element by producing a workable composition of an inorganic binder and water, forming the composition into a structural element, providing an inorganic salt at least on the surface of the structural element, applying to the surface of the structural element an aqueous paste containing at least one metal oxide and waterglass thereby to form a gel-like non-fluid coating and hardening the coated structural element, the improvement which comprises hardening the structural element prior to applying the aqueous paste thereto, whereby the resulting coating is of enhanced weather resistance. The inorganic salt may be provided on the surface by being present in the workable composition per se or by being present in a facing layer applied to the structural element. It can also be provided by being sprayed thereon as an aqueous solution in which event the first hardening must precede such spraying. The resulting coatings are of enhanced weather resistance.Type: GrantFiled: February 2, 1978Date of Patent: January 22, 1980Assignee: Bayer AktiengesellschaftInventors: Milan Krejci, Peter Kresse
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Patent number: 4156613Abstract: A pigment of high anti-corrosion properties comprises(a) about 30 to 70 mole percent of at least one of MgO, ZnO and CaO, and(b) about 70 to 30 mole percent of Me.sub.2 O.sub.3 wherein Me.sub.2 O.sub.3 has the approximate molar percent compositionFe.sub.2 O.sub.3 : 0-100, preferably 0.5-100, most preferably 1-95, mole %Al.sub.2 O.sub.3 +Mn.sub.2 O.sub.3 : 0-100, preferably 0.5-100, most preferably 1-95, mole %Cr.sub.2 O.sub.3 : 0-20 mole %Is produced by calcining such oxides or compounds yielding such oxides at from about 200.degree. .RTM. to 650.degree. C. with the option of going up to about 950.degree. C. if the Al+Mn+Cr oxides total 10 mole % or more.Type: GrantFiled: May 12, 1977Date of Patent: May 29, 1979Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Gunter Linde, Peter Kresse
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Patent number: 4153465Abstract: An anticorrosion pigment suited for paints and lacquers and consisting of CaZn.sub.2 (PO.sub.4).sub.2 . 2H.sub.2 O crystallizing in the Scholzite lattice and having a specific surface according to BET of from 0.1 to 50 m.sup.2 /g is produced by a process wherein(a) (i) a salt solution containing calcium and zinc cations in a ratio of about 1:2 is normally, inversely or simultaneously precipitated in air at temperatures of up to about 100.degree. C. with an equivalent or substantially equivalent quantity of a solution containing an alkali metal or ammonium phosphate ion; or (ii) compounds of calcium and zinc, which can be decomposed with relatively strong acids or neutralized with acids, in a ratio of about 1:2, have phosphoric acid or ammonium phosphate added to them in approximately the quantity which is required for decomposition or neutralization, or in a slight excess of that quantity, at temperatures of up to about 100.degree. C.Type: GrantFiled: November 28, 1977Date of Patent: May 8, 1979Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Peter Kresse
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Patent number: 4140538Abstract: An anti-corrosion pigment comprising about 30 to 70 mole % of an oxide of at least one metal selected from the group consisting of magnesium, calcium and zinc, about 70 to 30 mole % of Fe.sub.2 O.sub.3, and up to about 20 mole % of Cr.sub.2 O.sub.3, the pigment having a specific surface of about 1 to 30 m.sup.2 /g and exhibiting a weight loss of less than about 0.05% per gram of pigment by the Thomson corrosion test, is produced by calcining the corresponding metal oxides. The temperature is about 200 to 650.degree. C. in the absence of chromium and about 200 to 900.degree. C. when chromium is present.Type: GrantFiled: August 11, 1976Date of Patent: February 20, 1979Assignee: Bayer AktiengesellschaftInventors: Franz Hund, Gunter Linde, Peter Kresse
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Patent number: 4117197Abstract: In the production of a coated building component comprising the steps of mixing an inorganic binder, water and aggregate to produce a workable mass, molding said mass into a preformed component, applying to the preformed component an aqueous paste containing a metal oxide and at least one of waterglass and a phosphate to form a coating and allowing the coating to harden, the improvement which comprises applying about 190 to 400 g of the paste per square meter of surface to be coated, the application being effected in the presence of at least about 0.5% by weight of the inorganic binder or, in the case of lime-sand bricks, by weight of the binder plus aggregate, of a water soluble inorganic salt which converts the aqueous paste into a gel-like non-flowing form.Type: GrantFiled: September 7, 1976Date of Patent: September 26, 1978Assignee: Bayer AktiengesellschaftInventors: Milan Krejci, Peter Kresse