Patents by Inventor Rolf Platz
Rolf Platz 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: 4562262Abstract: A process for the preparation of polycyclic nitrogen-containing compounds of the formula ##STR1## where R is hydrogen or an organic radical, wherein a compound of the formula ##STR2## where Alk is alkyl of 1 to 4 carbon atoms and R has the above meanings, is reacted with a solution of an alkali metal hydroxide or of calcium hydroxide and the product is then oxidized.Type: GrantFiled: November 28, 1984Date of Patent: December 31, 1985Assignee: BASF AktiengesellschaftInventors: Norbert Rieber, Heinrich Bohm, Rolf Platz, Werner Fuchs
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Patent number: 4550195Abstract: A process for the manufacture of pent-3-enoic acid and its alkyl esters, of the general formulaCH.sub.3 --CH.dbd.CH--CH.sub.2 --CO--ORwhere R is hydrogen or alkyl of 1 to 4 carbon atoms, comprising carbonylating butadiene with carbon monoxide and a compound ROH at from 300 to 1,000 bars CO pressure and from 100.degree. to 160.degree. C. in the presence of cobalt catalysts and nitrogen bases, wherein C.sub.4 cuts are used as starting materials and a tertiary amine having a pK.sub.A of from 3 to 11 is used as the nitrogen base. The pent-3-enoic acid or alkyl esters produced may be used for the manufacture of adipic acid or its alkyl esters, which compounds are starting materials for the manufacture of nylons.Type: GrantFiled: August 21, 1981Date of Patent: October 29, 1985Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Rudolf Kummer, Heinz-Walter Schneider, Kurt Schwirten
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Patent number: 4512795Abstract: Diazatricyclononene compounds of the formula ##STR1## and their intermediates, i.e. norbornane compounds of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, A and n have the meanings given in the claims and in the description, their preparation and their use as plant protection agents or plant growth regulators.Type: GrantFiled: January 11, 1983Date of Patent: April 23, 1985Assignee: BASF AktiengesellschaftInventors: Norbert Rieber, Rolf Platz, Johann Jung
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Patent number: 4482499Abstract: Organic isocyanates, preferably alkyl, mono-, di- and/or polyisocyanates or aryl-mono-, di- and/or polyisocyanates, are prepared by thermally cleaving the corresponding urethanes at temperatures of 175.degree. C. to 600.degree. C. in the presence of carbon, preferably in an agitated carbon bed or in a fluidized bed containing carbon.Type: GrantFiled: October 25, 1982Date of Patent: November 13, 1984Assignee: BASF AktiengesellschaftInventors: Franz Merger, Gerhard Nestler, Rolf Platz, Friedrich Towae, Hans Hellbach
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Patent number: 4380642Abstract: A process for the simultaneous preparation of pyrazole and triazoles by reacting a triazoline compound with a basic compound and then oxidizing the product with hydrogen peroxide.The triazoles and pyrazole obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and drugs.Type: GrantFiled: July 17, 1981Date of Patent: April 19, 1983Assignee: BASF AktiengesellschaftInventors: Norbert Rieber, Rolf Platz, Werner Fuchs
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Patent number: 4361710Abstract: A process for the preparation of butane-1,4-diol by catalytic hydrogenation of a mixture obtained by treating maleic anhydride with an aliphatic alcohol at elevated temperatures, wherein a monohydric or dihydric aliphatic alcohol of boiling point above 180.degree. C. is used and the mixture of maleic acid and the alcohol is obtained by washing a gaseous reaction mixture, which contains maleic anhydride and is obtained in the catalytic oxidation of hydrocarbons by air, with the alcohol.Type: GrantFiled: February 10, 1982Date of Patent: November 30, 1982Assignee: BASF AktiengesellschaftInventors: Hans-Martin Weitz, Rolf Schnabel, Rolf Platz
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Patent number: 4350819Abstract: 1-Hydroxypyrazole and a process for its preparation by conversion of isoxazolineazoxy compounds at 140.degree.-600.degree. C.The end products obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.Type: GrantFiled: July 17, 1981Date of Patent: September 21, 1982Assignee: BASF AktiengesellschaftInventors: Norbert Rieber, Heinrich Bohm, Rolf Platz, Werner Fuchs
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Patent number: 4310345Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.Type: GrantFiled: January 16, 1980Date of Patent: January 12, 1982Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
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Patent number: 4305888Abstract: A process for the manufacture of salts of alkanedicarboxylic acids of 4 to 12 carbon atoms and alkanediamines of 3 to 14 carbon atoms, comprising reacting esters of alkanols of 1 to 4 carbon atoms and alkanedicarboxylic acids of 4 to 12 carbon atoms with alkanediamines of 3 to 14 carbon atoms in stoichiometric amounts in the presence of water at an elevated temperature, with continuous removal of the alkanols formed, in which process the reaction is carried out, from the start, in the presence of the particular salt of alkanedicarboxylic acid and alkanediamine which is to be manufactured.Type: GrantFiled: July 8, 1977Date of Patent: December 15, 1981Assignee: BASF AktiengesellschaftInventors: Rudolf Kummer, Rolf Platz, Heinz-Walter Schneider
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Patent number: 4298766Abstract: A process for the preparation of 2-methyl-pentane-2,4-diol by hydrogenating diacetone-alcohol at an elevated temperature in the presence of a catalyst which has been obtained by calcining the compound of the formula Ni.sub.6 Al.sub.2 (OH).sub.16 CO.sub.3 . 4H.sub.2 O.Type: GrantFiled: September 17, 1979Date of Patent: November 3, 1981Assignee: BASF AktiengesellschaftInventors: Franz J. Broecker, Karl G. Baur, Rolf Platz, Joachim Stabenow
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Patent number: 4282027Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.Type: GrantFiled: January 16, 1980Date of Patent: August 4, 1981Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
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Patent number: 4268300Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.Type: GrantFiled: January 16, 1980Date of Patent: May 19, 1981Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
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Patent number: 4259235Abstract: Tricyclic nitrogenous compounds having strong plant growth regulating properties are disclosed. The compounds display the general formula ##STR1## wherein A is one of several nitrogen-containing radicals, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected from various recited aliphatic, aryl, araliphatic and heterocyclic groups. R.sup.3 and R.sup.4 may also together form one of a number of nitrogen, sulfur and oxygen containing radicals. These compounds have a variety of uses, including the reduction of plant growth height without harm to the plant.Type: GrantFiled: September 11, 1978Date of Patent: March 31, 1981Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Johann Jung, Bruno Wuerzer
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Patent number: 4258203Abstract: Multistep process for the preparation of butanedicarboxylic acid by the hydrogenation of carbon monoxide under pressure in the presence of a cobalt carbonyl catalyst, the improvement of heating at a temperature of 250.degree. to 350.degree. C. under superatmospheric pressure the resulting aqueous solution of cobalt carbonyl hydride that has been extracted with butadiene or with mixtures thereof before using in a subsequent step of the multistep process.Type: GrantFiled: July 19, 1979Date of Patent: March 24, 1981Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Rudolf Kummer, Heinz-Walter Schneider
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Patent number: 4257941Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.Type: GrantFiled: May 1, 1978Date of Patent: March 24, 1981Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
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Patent number: 4239910Abstract: In a process for the manufacture of butenediol-dicarboxylic acid esters by reacting butadiene with oxygen and a carboxylic acid in the presence of a noble metal catalyst containing platinum or palladium, the carboxylic acid is added to the reaction mixture in the form of the ester of the acid with a low molecular weight aliphatic alcohol such as methanol and the reaction is carried out under conditions under which the ester undergoes hydrolysis, or the hydrolysis is carried out before the main reaction. This enables the carboxylic acid obtained on further processing of the butenediol esters to be recycled.Type: GrantFiled: March 18, 1977Date of Patent: December 16, 1980Assignee: BASF AktiengesellschaftInventors: Hans-Martin Weitz, Rolf Platz, Juergen Hartig
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Patent number: 4219666Abstract: Carboxylic acid esters of vicinal glycols are prepared by oxidizing olefins with oxygen in the presence of carboxylic acids and of halogen and tellurium salts as catalysts, the reaction being carried out in vessels and apparatus consisting of, or lined with, zirconium or alloys of not less than 80% by weight of zirconium, the remainder being tin and/or hafnium.Type: GrantFiled: July 30, 1979Date of Patent: August 26, 1980Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Hans-Martin Weitz, Juergen Hartig
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Patent number: 4189434Abstract: New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.Type: GrantFiled: March 28, 1977Date of Patent: February 19, 1980Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Norbert Rieber, Ulf-Rainer Samel, Johann Jung, Bruno Wuerzer
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Patent number: 4187384Abstract: Mono- and poly-ethylene glycol dialkyl ethers IR.sup.1 --O--(--CH.sub.2 --CH.sub.2 --O--).sub.n --R.sup.2where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, R.sup.2 is C.sub.3 -C.sub.5 -alkyl and n is from 1 to 100, are prepared by reacting monoalkyl ethers IIR.sup.1 --O--(--CH.sub.2 --CH.sub.2 --O--).sub.n --Hwith a C.sub.3 -C.sub.5 -olefin III in the presence of an acid ion exchanger at from 1 to 200 bar and from 40.degree. to 150.degree. C., the reaction being started at from 100.degree. to 150.degree. C. and the temperature then being lowered, in at least two approximately equal steps, to from 40.degree. to 80.degree. C., the temperature being dropped in each case to the next-lower level when the conversion per unit time no longer changes significantly.Type: GrantFiled: January 10, 1979Date of Patent: February 5, 1980Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Werner Fuchs, Wolfgang Vodrazka
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Patent number: 4176137Abstract: A process for the manufacture of carboxylic acid amides by addition reaction of water with nitriles in the presence of a catalyst which contains copper and magnesium silicate and has been treated with a reducing gas, to which catalyst cement of a certain particle size has been admixed. The amides obtainable by the process are starting materials for the manufacture of solvents, flocculants, wetting agents, pesticides, crop protection agents, textile assistants, e.g. brighteners, water repellent agents, foam stabilizers and detergents.Type: GrantFiled: November 13, 1978Date of Patent: November 27, 1979Assignee: BASF AktiengesellschaftInventors: Rolf Platz, Toni Dockner, Jurgen Heners, Herbert Krug