Patents by Inventor Konrad Albrecht
Konrad Albrecht 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: 5821198Abstract: The present invention relates to liquid herbicidal agents in the form of emulsifiable concentrates (EC) or concentrated emulsions (EW), which, in addition to 1-40% by weight of the active compound diclofop-methyl (I), fenoxaprop-ethyl (II) or the optically active isomer (D+) thereof fenoxaprop-P-ethyl (III), contain, as surfactants, 0.5-30% by weight of (C.sub.10 -C.sub.18)-fatty alcohol polyglycol ethers or (C.sub.8 -C.sub.9)-alkylphenyl polyglycol ethers which are ethoxylated with 6-10 mol of ethylene oxide, and in the case of EC formulations 0.5-7% by weight of calcium (C.sub.8 -C.sub.14)-alkylbenzenesulfonate, and in the case of EW formulations, as a dispersing agent, 0.5-7% by weight of an ethylene oxide-propylene oxide-ethylene oxide block copolymer phosphorylated in the alpha- and omega-position, or a salt thereof, in addition to the customary formulation constituents.Type: GrantFiled: May 31, 1995Date of Patent: October 13, 1998Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Rudolf Heinrich, Hans Schumacher
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Patent number: 5628800Abstract: Granules can be prepared from powders of active compounds by the counter-current principle by fluidization in a stream of air and spraying of a solution of adhesive. Dispersions or solutions of active compounds can be granulated in accordance with the invention if the aqueous dispersion or solution is sprayed by the counter-current principle into the gas stream of a fluidizing chamber and is caused to fluidize, the formation of granules being started, in a start-up phase, at 10 to 60% of the maximum gas flow and at only up to 30% of the maximum feed rate of dispersion or solution, and subsequently the feed rate and the gas flow are increased up to the maximum values for the feed rate and the gas flow, and, in the main phase, the formation of granules is continued at maximum gas flow and maximum feed rate.Granules prepared in this way, containing pesticides as the active compounds, can be used as plant protection agents or pest control agents.Type: GrantFiled: March 20, 1990Date of Patent: May 13, 1997Assignee: Hoechst AktiengesellschaftInventors: Rainer Schlicht, Hans R ochling, Konrad Albrecht
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Patent number: 5543385Abstract: Novel water-dispersible granules of plant protection agents, in particular of herbicides and growth regulators, are obtained when a dispersion or solution in water of 10 to 90% by weight of active substance with 10 to 90% by weight of solid wetting agents from the group containing of alkanesulfonates, alkylsulfonates, alkylnaphthalenesulfonates, alkylbenzenesulfonates, long-chain olefinsulfonates, alkyl polyol ether sulfonates, alkyl ether sulfates, alkyl ether phosphates, alkylsulfosuccinic monoesters, fatty acid isethionates and fatty acid N-methyltaurides, or of an ammonium salt, or of a mixture of an ammonium salt and one or more of the above solid wetting agents, and 0 to 50% by weight of customary formulation agents is prepared and the dispersion or solution is granulated using the cocurrent or counter-current process.Type: GrantFiled: June 28, 1994Date of Patent: August 6, 1996Assignee: Hoechst AktiengesellschaftInventors: Hans Rochling, Jean Kocur, Konrad Albrecht
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Patent number: 5491125Abstract: Liquid herbicidal agents which contain a compound of the formula ##STR1## in the form of the racemate or of the L enantiomer, lower alkyl esters thereof or salts thereof with acids or bases (I) in combination with surfactants in the form ofa) alkyldimethyl-, fatty acid amidopropyldimethyl- or fatty acid amido ethyldimethylamine oxides orb) the betaine of coconut alkyldimethylaminoacetic acid or of coconut alkylaminopropionic acid orc) alkanesulfonates and mixtures thereof with fatty alcohol polyglycol ether sulfosuccinic acid monoesters or fatty alcohol polyglycol ether sulfates ord) alkylsulfosuccinic acid monoesters or fatty alcohol polyglycol ether sulfosuccinic acid monoesters and fatty alcohol polyglycol ether sulfosuccinic esters and their mixtures with fatty alcohol polyglycol ether sulfates ore) .alpha.Type: GrantFiled: December 1, 1992Date of Patent: February 13, 1996Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Jean Kocur, Peter Langeluddeke
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Patent number: 5364832Abstract: Novel water-dispersible granules of plant protection agents, in particular of herbicides and growth regulators, are obtained when a dispersion or solution in water of 10 to 90% by weight of active substance with 10 to 90% by weight of solid wetting agents from the group containing of alkanesulfonates, alkylsulfonates, alkylnaphthalenesulfonates, alkylbenzenesulfonates, long-chain olefinsulfonates, alkyl polyol ether sulfonates, alkyl ether sulfates, alkyl ether phosphates, alkylsulfosuccinic monoesters, fatty acid isethionates and fatty acid N-methyltaurides, or of an ammonium salt, or of a mixture of an ammonium salt and one or more of the above solid wetting agents, and 0 to 50% by weight of customary formulation agents is prepared and the dispersion or solution is granulated using the cocurrent or counter-current process.Type: GrantFiled: May 18, 1992Date of Patent: November 15, 1994Assignee: Hoechst AktiengesellschaftInventors: Hans Rochling, Jean Kocur, Konrad Albrecht
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Patent number: 5332714Abstract: The invention relates to defoamed aqueous solutions of surfactants and to low-foam concentrated liquid preparations of plant protection agents, which contain sulfato- or sulfonato-containing surfactants as wetting agents and surfactants from the group comprising the perfluoro(C.sub.6 -C.sub.18)alkylphosphinic acids and/or -alkylphosphonic acids and/or their salts, as defoamer.Type: GrantFiled: July 6, 1990Date of Patent: July 26, 1994Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Jean Kocur
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Patent number: 5227402Abstract: The invention relates to plant protection agents based on aqueous microemulsions which contain, as emulsifiers, ethoxylated and phosphorylated, styryl-substituted phenols or salts thereof in combination with one or more non-phosphorylated emulsifiers belonging to the group comprising salts of (C.sub.10 -C.sub.16)-alkyl-monoglycol to -hexaglycol ether-sulfates, salts of .alpha.-(C.sub.14 -C.sub.19)-alkenol sulfates, salts of optionally chlorinated (C.sub.13 -C.sub.18)-alkanesulfonic acids, salts of dodecylphenylsulfonic acid, amine oxethylates or .alpha.(C.sub.9 -C.sub.20)-alkyl-.omega.-hydroxypolyoxyethylenes containing 2 to 22 moles of ethylene oxide.Type: GrantFiled: August 28, 1989Date of Patent: July 13, 1993Assignee: Hoechst AktiengesellschaftInventors: Hans Rochling, Konrad Albrecht
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Patent number: 5152823Abstract: Aqueous pesticidal agents based on active substance-containing dispersions in combination with water-soluble active substances, which agents contain at least 3 active substances, at least 2 of which are present in the disperse form and at least 1 of which is water-soluble, and contain alkyl ether sulfates combined with ethoxylated fatty alcohols and sulfosuccinic monoesters as surfactants, have a broad range of applications and advantageous properties in use.Type: GrantFiled: January 14, 1991Date of Patent: October 6, 1992Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Gerhard Frisch
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Patent number: 5074905Abstract: The invention relates to plant-protection agents which contain one or more active ingredients and which are based on suspoemulsions containing aqueous and organic phases, where the organic phase contains one or more surfactants from the group comprising the ethylene oxide/propylene oxide block polymers having an average molecular weight of 1,000-20,000. The suspoemulsions are subjected to large shear forces. Even thereafter, they exhibit a constant viscosity behavior, in spite of a large number of droplets and a low droplet size.Type: GrantFiled: November 20, 1989Date of Patent: December 24, 1991Assignee: Hoechst AktiengesellschaftInventors: Gerhard Frisch, Konrad Albrecht
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Patent number: 4973352Abstract: Herbicidal aqueous microemulsions containing a combination of a herbicidal phenoxyphenoxy- or hetercaryloxyphenoxy-carboxylic acid ester with a salt of the herbicide bentazone (3-isopropyl-1H-benzo-2,1,3-thiadiazin-4-one 2,2-dioxide) as active substances; one or more emulsifiers wetting agents from among calcium dodecylbenzenesulfonate, ethoxylated castor oil, the ethoxylated nonylphenols, the alkanol polyglycol ethers or the fatty acid polyglycol esters, and one or more organic solvents from among the aromatics or ketones, are storage-stable at low and higher temperatures and show no inhomogeneities.Type: GrantFiled: February 24, 1989Date of Patent: November 27, 1990Assignee: Hoechst AktiengesellschaftInventors: Rudolf Heinrich, Konrad Albrecht, Hans Schumacher
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Patent number: 4966621Abstract: Aqueous emulsions of a plant protective agent such as a pesticide dispersed in the presence of a phosphate ester of a block copolymer of (1) ethylene and propylene oxides or (2) of an ethoxylated/propoxylated fatty alochol.Type: GrantFiled: June 3, 1987Date of Patent: October 30, 1990Assignee: Hoechst AktiengesellschaftInventors: Rudolf Heinrich, Konrad Albrecht
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Patent number: 4932994Abstract: An evaporation inhibitor, having particular use with spray mixtures of agricultural chemicals applied by the low-volume method, in the form of a paraffin-containing aqueous dispersion or a self-emulsifying solution in an organic solvent, and having the following composition:______________________________________ from 15 to 40% by weight of paraffin waxes or a wax mixture containing paraffin waxes having a dropping point of from 35 to 80.degree. C., from 4 to 20% by weight of nonionic and/or anionic emulsifiers, from 35 to 81% by weight of water and/or an organic solvent which is one or more of a hydrocarbon, an ester and a ketone, which have boiling points of from 70 to 280.degree. C., and from 0 to 5.5% by weight of other auxiliaries.Type: GrantFiled: November 14, 1985Date of Patent: June 12, 1990Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Josef Koester, Adolf Asbeck, Holger Tesmann, Margarete Gruenert, Konrad Albrecht, Paul Bittner, Fritz Keim
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Patent number: 4870103Abstract: The invention relates to plant protection agents based on aqueous microemulsions which contain, as emulsifiers, ethoxylated and phosphorylated, styryl-substituted phenols or salts thereof in combination with one or more non-phosphorylated emulsifiers belonging to the group comprising salts of (C.sub.10 -C.sub.16)-alkyl-monoglycol to -hexaglycol ether-sulfates, salts of .alpha.-(C.sub.14 -C.sub.19)-alkenol sulfates, salts of optionally chlorinated (C.sub.13 -C.sub.18)-alkanesulfonic acids, salts of dodecylphenylsulfonic acid, amine oxethylates or .alpha.(C.sub.9 -C.sub.20)-alkyl-.omega.-hydroxypolyoxyethylenes containing 2 to 22 moles of ethylene oxide.Type: GrantFiled: July 21, 1987Date of Patent: September 26, 1989Assignee: Hoechst AktiengesellschaftInventors: Hans Rochling, Konrad Albrecht
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Patent number: 4853026Abstract: The present application describes herbicidal agents, based on emulsions, which contain two or more active compounds - a water-soluble, salt-like active compound and an active compound which is soluble in organic solvents - a surfactant mixture and a solvent, the surfactant mixture comprising a combination of phenylsulfonate salts, ethoxylated alkyl- (or polyaryl)phenol phosphates, ethoxylated acidic phohsphoric acid esters and alkylphenol polyglycol ether derivatives. These agents are prepared by the action of high shear forces.Type: GrantFiled: April 30, 1987Date of Patent: August 1, 1989Assignee: Hoechst AktiengesellschaftInventors: Gerhard Frisch, Konrad Albrecht
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Patent number: 4804399Abstract: Subject of the invention are liquid pesticidal compositions in the form of aqueous suspension concentrates, which in addition to the active substance or mixture of active substances contain an alkali metal salt of sulfosuccinic acid semiester prepared by reaction of a polyglycol ether of a condensation product of (C.sub.8 -C.sub.12)-alkylphenol and formaldehyde with maleic anhydride and an alkali metal sulfite, in combination with a mixture of an alkali metal salt of a ligninsulfonic acid and identical parts of a swelling alkaline earth metal silicate. These suspension concentrates have an advantageous stability to storage.Type: GrantFiled: January 14, 1986Date of Patent: February 14, 1989Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Gerhard Frisch
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Patent number: 4793850Abstract: An evaporation inhibitor composition which consists essentially of:A. from about 15 to about 50% by weight of a wax mixture containing at least about 5% by weight, based on the wax mixture, of a wax component having an acid number of from about 10 to about 95 mg KOH/g wax;B. from about 4 to about 20% by weight of at least one nonionic and/or anionic emulsifier;C. from about 19.5 to about 81% by weight of water and/or at least one organic solvent selected from the group consisting of hydrocarbons, esters, and ketones having a boiling point of from about 70.degree. to about 280.degree. C.Type: GrantFiled: November 14, 1985Date of Patent: December 27, 1988Assignees: Henkel Kommanditgesellschaft auf Aktien, Hoechst AktiengesellschaftInventors: Josef Koester, Karl Schmid, Konrad Albrecht, Paul Bittner, Fritz Keim
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Patent number: 4638090Abstract: Processes for the preparation of nitrosamine-free N,N-disubstituted nitroaromatic amines by degradation of their nitrosamine components formed during their preparation, and by stabilization of the products against renewed formation of nitrosamines, by treating the amines in liquid or molten form with a sulfonic acid, where necessary in the presence of inert organic solvents or diluents.Type: GrantFiled: December 12, 1984Date of Patent: January 20, 1987Assignee: Hoechst AktiengesellschatInventors: Rudolf Heinrich, Konrad Albrecht
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Patent number: 4608277Abstract: Encapsulated salts of organic or inorganic acid particles having sparing solubility in water wherein the salt particles are surrounded by a pressure-resistant, elastic, abrasion-resistant polyurethane/polyurea casing, the ratio by weight of salt to the polyurethane component of the casing material being 1:0.2 to 1:2.5, are produced by emulsifying a mixture of 83 to 28% by weight of the salt to be encapsulated and 17 to 72% by weight of a polyurethane prepolymer containing free isocyanate groups in water in the presence of a protective colloid and reacting the emulsified prepolymer with the equivalent amount of polyamine at temperatures from 0.degree. to 80.degree. C., with vigorous mixing.Type: GrantFiled: August 2, 1985Date of Patent: August 26, 1986Assignee: Casella AktiengesellschaftInventors: Ulrich Greiner, Karl-Heinz Keil, Rudolf Heinrich, Konrad Albrecht
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Patent number: 4594096Abstract: The aqueous mixed dispersions, according to the invention, of pesticides, which contain an active compound concentrate, based on (C.sub.1 -C.sub.12)-alkyl phthalates as the solvent, of one or more active compounds melting below 70.degree. C., in combination with an aqueous suspension concentrate of one or more active compounds melting above 70.degree. C., possess surprisingly high stability on storage.Type: GrantFiled: January 24, 1984Date of Patent: June 10, 1986Assignee: Hoechst AktiengesellschaftInventors: Konrad Albrecht, Gerhard Frisch
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Patent number: 4571088Abstract: The invention relates to a process for the preparation of dispersions of plant protection agents, wherein at least one active ingredient being metered, in the molten form, into the outlet stream of a jet, which stream contains a solution of the formulation aids. The process is suitable for all active ingredients which form a stable melt and have a melting point above 70.degree. C. The resulting dispersions have advantageous stabilities.Type: GrantFiled: October 17, 1984Date of Patent: February 18, 1986Assignee: Hoechst AktiengesellschaftInventors: Heinz Frensch, Konrad Albrecht, Gerhard Frisch