Patents Assigned to BASF Aktiengesellschaft
  • Preparation of polyfunctional initiators for anionic polymerization, oligomeric polyfunctional initiators, use of the resulting polymers for the preparation of unfunctionalized or functionalized polymers and as prepolymers for other resins
    Patent number: 4822530
    Abstract: Oligomeric polyfunctional initiators for anionic polymerization of dienes and/or alkenylaromatics are prepared by a process in which a mixture of dialkenylaromatics and alkenylaromatics in a molar ratio of from 1:4 to 1:100, in an inert solvent, is run, at from 25.degree. to 100.degree. C., continuously or in small portions, with thorough mixing, into an initially taken mixture which contains from 1.2 to 3.0 molar equivalents, based on the dialkenylaromatics, of one or more organolithium compounds and an inert solvent, and is polymerized completely. The resulting oligomeric initiators are used for the preparation of unfunctionalized or functionalized polymers or block copolymers from dienes and/or alkenylaromatics, and the functionalized polymers thus prepared are used as prepolymers for other resins.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Bronstert, Siegbert Bohnet
  • Triazolyl alcohols, their preparation and their use as fungicides
    Patent number: 4822889
    Abstract: Triazolyl alcohols of the formula ##STR1## their addition salts with acids and their metal complexes, where the steroisomers are in certain ratios, the preparation of these compounds, the preparation of fungicides from these, and the use of these fungicides.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Hubert Sauter, Ludwig Schuster, Ernst-Heinrich Pommer, Eberhard Ammermann
  • Reduction of organic sulfur compounds
    Patent number: 4822918
    Abstract: Organic sulfur compounds, such as sulfonic acids, sulfonyl halides, sulfonates, sulfonamides, sulfonic acid anhydrides, sulfones, sulfoxides and/or disulfanes, are reduced by a method in which the sulfur compound in the liquid or gas phase is reacted with a hydrocarbon in the presence of carbon at from 100.degree. to 500.degree. C.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Toni Dockner, Manfred Sauerwald
  • Substituted acrylates and fungicides containing same
    Patent number: 4822908
    Abstract: Substituted acrylates of the general formula ##STR1## where R.sup.1 and R.sub.2 are alkyl, alkenyl or alkynyl, X is hydrogen, halogen, alkyl, alkoxy, tirfluoromethyl, cyano or nitro, Y is ethylene, ethenylene, methyleneoxy, oxymethylene, thiomethylene, methylenethio or oxygen, R is hydrogen, substituted or unsubstituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl or cycloalkynyl, and fungicides containing these compounds.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Karbach, Ulrich Schirmer, Costin Rentzea, Ernst-Heinrich Pommer, Eberhard Ammermann, Wolfgang Steglich, Barbara A. M. Schwalge, Timm Anke
  • Preparation of cyclopentanone
    Patent number: 4822920
    Abstract: Cyclopentanone is prepared from adipic esters by reacting adipic esters of the formulaR.sup.1 OOC--(CH.sub.2).sub.4 --COOR.sup.2where R.sup.1 and R.sup.2 are alkyl of 1 to 12 carbon atoms, cycloalkyl of 5 or 6 carbon atoms, aralkyl or aryl and R.sup.2 can additionally be hydrogen, in the gas or liquid phase at from 150.degree. C. to 450.degree. C. in the presence of zeolitic catalysts and/or phosphate catalysts, preferably zeolites of the pentasil type.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Lermer, Wolfgang Hoelderich, Matthias Schwarzmann
  • Jacket for a flexible magnetic disk and production of the jacket
    Patent number: 4822327
    Abstract: The blanks punched out from a film web and folded to form the jacket are then heated for a short time and cooled again in order to eliminate stresses in the jacket material which give rise to deformations and are also produced by the action of heat during processing of the material.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernhard Lenz, Kurt Zwintzscher, Dietrich Gruehn, Hubert Fehrenbach, Norbert Holl
  • Photopolymerizable molding materials containing metal wire inserts
    Patent number: 4822665
    Abstract: The invention relates to photopolymerizable, sheet-like molding materials containing a mixture of an unsaturated polyester, monomers, a thickener, pulverulent and/or fibrous additives and metal wire inserts. The molding materials can be shaped, for example by pressing or deep-drawing, to give dimensionally staple semi-finished products which are cured to give finished articles. The latter can be employed as automotive components or domestic appliance components.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Dankmar Scholz, Klaus Liebe
  • Copolymers having O-nitrocarbinol ester groups and production of semiconductor components
    Patent number: 4822866
    Abstract: Copolymers containing from 5 to 50 mol % of monomers having o-nitrocarbinol ester groups, from 94 to 30 mol % of methacrylonitrile, from 1 to 20 mol % of olefinically unsaturated copolymerizable carboxylic acid and from 0 to 30 mol % of other copolymerizable monomers as copolymerized units are useful for fabricating semiconductor components.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schwalm, Horst Binder
  • 1,3-dioxan-5-ylalkyltriazoles, their use for regulating plant growth, and agents for this purpose
    Patent number: 4822400
    Abstract: Compounds of the formula I ##STR1## where R.sup.1 and R.sup.2 are identical or different and are each hyrogen or alkyl of 1 to 5 carbon atoms, the radicals X are identical or different substituents selected from the group consisting of halogen, cyano, trifluoromethyl, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, unsubstituted or substituted phenyl or hydrogen, m is from zero to 5, n is an integer from 2 to 6 and Y is --CO-- or --CH(OH)--, their intermediates of the formula (II) ##STR2## and the use of the compounds (I) as plant growth regulators.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Costin Rentzea, Hubert Sauter, Wolfgang Tuerk, Bernd Wenderoth, Winfried Richarz, Johann Jung, Wilhelm Rademacher
  • Preparation of decene oligomers and use thereof as lubricating oils
    Patent number: 4822945
    Abstract: Decene oligomers useful with or without hydrogenation as basis for synthetic lubricating oils are prepared by oligomerizing decene-1 in the presence of an alkylaluminum chloride catalyst and an alkyl halide cocatalyst, in a first reaction stage the decene-1 being mixed with the catalyst at from 0 to +25.degree. C. and being kept in contact therewith within the same temperature range for not less than 15 minutes and in a second reaction stage the cocatalyst being added at from 0 to +35.degree. C. in the course of a period of from 15 to 180 minutes.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: April 18, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Bronstert, Helmut Mach, Hans P. Rath, Hans-Michael Walter
  • Preparation of a low-dust free-flowing choline chloride powder
    Patent number: 4820532
    Abstract: A low-dust, free-flowing choline chloride powder based on natural carriers or silica, the choline chloride content on natural carriers being from 30 to 60% by weight and that on silica being from 30 to 80% by weight, based on the choline chloride powder, is prepared by a process in which(a) choline chloride solution is mixed with the carrier in the desired ratio within the stated range,(b) the resulting mixture is sprayed continuously into a fluidized bed already containing dry choline chloride powder and is dried there at from 90.degree. to 180.degree. C., and(c) the dried end product is removed from the fluidized bed and cooled to below 50.degree. C.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Bayer, Guenter Boettger, Rainer Hiller, Michael Huber, Wolfgang Koernig, Wolfgang Fritz
  • Heterocyclic azo dyes
    Patent number: 4820809
    Abstract: Novel compounds of the general formula I ##STR1## where X is hydrogen, nitro or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aryl or hetaryl, Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl, R is unsubstituted or substituted alkyl or aryl, R.sup.1 is hydrogen or R.sup.2, and R.sup.2 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, are useful for dyeing textile fibers, in particular polyesters.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Erwin Hahn, Guenter Hansen
  • Pyridazinone derivatives and their use as fungicides
    Patent number: 4820704
    Abstract: Pyridazinone derivatives of the formula ##STR1## where R.sup.1 is alkyl, alkenyl, cycloalkyl or unsubstituted or substituted phenyl, R.sup.2 is chlorine or bromine, R.sup.3 is hydrogen, alkyl, cycloalkyl or unsubstituted or substituted phenyl and X is SO or SO.sub.2, with the proviso that R.sup.1 is not methyl when X is SO.sub.2, R.sup.2 is chlorine and R.sup.3 is phenyl, and fungicides containing these compounds.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Winfried Richarz, Gernot Reissenweber, Ernst-Heinrich Pommer, Eberhard Ammermann
  • Novel benzaldehyde dialkyl acetals and preparation and use thereof
    Patent number: 4820389
    Abstract: Benzaldehyde dialkyl acetals of the formula ##STR1## where R is alkyl of 1 to 4 carbon atoms, are prepared by electrochemical oxidation of 3-tert-butyl-4-methoxytoluene in the presence of an alkanol of the formula ROH and are used as scents or scent intermediates.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Degner, Walter Gramlich, Franz Lanzendoerfer, Hardo Siegel
  • Preparation of beta-aryl alcohols
    Patent number: 4820882
    Abstract: .beta.-Aryl alcohols for the general forumla I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and each is hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -aralkyl or C.sub.7 -C.sub.12 -alkaryl, n is 0, 1, 2, 3 or 4, or where two adjacent R.sup.1 's are linked to form a 5- or 6-membered ring, are prepared by reacting an aromatic of the formula II ##STR2## with an alkylene oxide of the formula III ##STR3## where R.sup.1, R.sup.2 and R.sup.3 have the abovementioned meanings, in the presence of a Friedel-Crafts catalyst, by carrying out the reaction in the presence of a titanium(IV) alcoholate at from -20.degree. to +40.degree. C. in the presence or absence of a solvent.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eckhardt, Manfred Eggersdorfer
  • Novel pyridazinone-imines and their physiologically tolerated addition salts with acids, their preparation and therapeutic agents containing these compounds
    Patent number: 4820821
    Abstract: Novel 1-phenyl-4(1H)-pyridazinone-imines of the formula (I) ##STR1## which are substituted at the imine nitrogen, and their addition salts with a physiologically tolerated acid, processes for their preparation, pharmaceutical formulations containing these compounds, and their use as drugs, in particular as antidepressants, antiparkinson drugs and antihypotonic agents.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Rudolf Kropp, Marco Thyes, Rainer Schlecker, Albrecht Franke, Franz Reicheneder, Dora I. Reicheneder, August Amann, Hans-Juergen Teschendorf, Rolf Kretzschmar, Martin Traut, Josef Gries
  • Increasing the yield of 2.5.6-trimethylcyclohex-2-en-1-one
    Patent number: 4820874
    Abstract: The yield of 2,5,6-trimethyl-cyclohex-2-en-1-one is increased by reacting diethyl ketyone, in the presence of an alkali, with crotonaldehyde or a compound which is converted to crotonaldehyde under the reaction conditions chose, and working up the reaction mixture by distillation, by a method in which the distillation residue obtained is either(a) heated at from 120.degree. to 250.degree. C. in particular from 120.degree. to 200.degree. C., with the addition of a catalytic amount of an alkali, or(b) heated at from 150.degree. to 250.degree. C. without the addition of such a substance,and the mixture of 2,5,6-trimethylcyclohex-2-en-1-one and diethyl ketone which is formed from the distillation residue as a result of the heat treatment is separated by distillation.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Tavs, Harald Laas, Horst Schauer, Lothar Arnold
  • Cyclohexenone derivatives useful for regulating plant growth
    Patent number: 4820331
    Abstract: Cyclohexenone derivatives of the general formula ##STR1## where R is C.sub.1 -C.sub.6 -alkyl, cyclopropyl, phenyl or C.sub.2 -C.sub.6 -alkoxyalkyl, R.sup.1 is hydrogen, tetrahydropyran-2-yl, benzoyl or unsubstituted or halo-substituted C.sub.1 -C.sub.6 -alkanoyl, and R.sup.2 is hydrogen or C.sub.1 -C.sub.6 -alkyl, and phytophysiologically tolerable salts thereof, and their use for regulating plant growth.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Keil, Ulrich Schirmer, Dieter Kolassa, Juergen Kast, Wilhelm Rademacher, Johann Jung
  • Polymers photostabilized by novel imidazole-2-carboxanilides
    Patent number: 4820757
    Abstract: Photostabilized polymers, including polyurethanes and plastics coatings, contain as photostabilizer one or more compounds of the formula ##STR1## or a novel imidazole-2-carboxanilide of the formula ##STR2##
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Spang, Peter Neumann, Gerhard Wagenblast, Hubert Trauth
  • Production of paper and paperboard of high dry strength
    Patent number: 4818341
    Abstract: Paper and paperboard of high dry strength are produced by adding a dry strength enhancer to the paper stock and dewatering the paper stock with sheet formation by using as the dry strength enhancer a mixture of a cationic polymer which contains as characteristic monomers copolymerized units of(a) diallyldimethylammonium chloride,(b) N-vinylamine or(c) a substituted or unsubstituted N-vinylimidazoline and has a K value of not less than 30, and natural potato starch which is converted into a water-soluble form by heating in an aqueous medium at above the gelatinization temperature of natural potato starch in the absence of any oxidizing agents or alkali.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: April 4, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Degen, Sigberg Pfohl, Volkmar Weberndoerfer, Gerd Rehmer, Michael Kroener, Andreas Stange