Patents Assigned to BASF
  • Patent number: 4324867
    Abstract: A process for preparing molded polyurethane-polyurea elastomers comprising reacting an organic polyisocyanate and a reactive polyol composition, said reactive polyol composition comprising(a) a polyol having an equivalent weight of from 700 to 4,000 and a functionality from 2 to 6; and(b) a reactive aromatic diamine which is soluble in said polyol at use temperatures and concentrations, has a pK.sub.b value greater than 10, and has the following structural formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 individually are radicals selected from the group consisting of hydrogen and alkyl radicals of 1 to 4 carbon atoms, and at least one of the alkyl radicals in each ring is a non-linear alkyl radical selected from the group consisting of isopropyl, isobutyl, and tertiary butyl radicals, and wherein R.sub.5 and R.sub.6 are radicals individually selected from the group consisting of hydrogen and alkyl radicals of 1 to 4 carbon atoms.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: April 13, 1982
    Assignee: BASF Wyandotte Corporation
    Inventors: John T. Patton, Jr., John P. Rupert
  • Patent number: 4324694
    Abstract: A supported catalyst, containing vanadium pentoxide, titanium dioxide, phosphorus, rubidium and any optionally added cesium, with or without zirconium dioxide, in which the catalytic material contains from 1 to 40% by weight of V.sub.2 O.sub.5, from 60 to 99% by weight of TiO.sub.2 and/or ZrO.sub.2 and, based on the total amount of TiO.sub.2, ZrO.sub.2 and V.sub.2 O.sub.5, up to 2% by weight of phosphorus and up to 1.5% by weight of rubidium and/or cesium, and which comprises two layers, of which the inner layer contains more than 0.2 and up to 2% by weight of phosphorus, but no rubidium and/or cesium, and the outer layer contains from 0 to 0.2% by weight of phosphorus and from 0.02 to 1.5% by weight of rubidium and/or cesium, the outer layer accounting for from 10 to 90% by weight of the total catalytic material.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: April 13, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Reuter, Kurt Blechschmitt, Friedrich Wirth
  • Patent number: 4324675
    Abstract: Alkylene glycol-based coolants free of nitrites, amines, and phosphates are metal corrosion inhibited with at least one nucleus-substituted benzoic acid and at least one conventional corrosion inhibitor for metals.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: April 13, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Barthold, Gert Liebold
  • Patent number: 4323510
    Abstract: A vat dye obtained by heating a condensation product, which itself has been prepared by heating 3,9-di-(1-anthraquinonylamino)-benz[d,e]anthrone in an aluminum chloride/picoline or aluminum chloride/quinoline melt in the presence of sulfuryl chloride or thionyl chloride, in a melt of an alkali metal hydroxide in an alcohol or glycol or aqueous glycol.The dye gives deep clear brown dyeings having good fastness characteristics.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: April 6, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hoch, Heinrich Hiller
  • Patent number: 4323552
    Abstract: A high foaming dentifrice composition comprising a cogeneric mixture of conjugated polyoxybutylene-polyoxyethylene nonionic surfactant and a cationic anti-decay agent.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: April 6, 1982
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4323362
    Abstract: Compounds of the general formulaA.sup.1 .dbd.CH--B--CH.dbd.A.sup.2where A.sup.1 and A.sup.2 are the radical of a quaternized methylene-active compound and B is a bridge member.The compounds according to the invention are very suitable for coloring ligneous and lignin-free paper stock.
    Type: Grant
    Filed: January 14, 1981
    Date of Patent: April 6, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Juergen Degen, Klaus Grychtol
  • Patent number: 4323689
    Abstract: Novel 2-hydroxypropylimidazole derivatives of the formula I ##STR1## where m is 1 or 2 and n is 0 or 1, R.sup.1 is an aliphatic or cycloaliphatic radical of 6 to 21 carbon atoms, R, if n is O, is an aliphatic, cycloaliphatic, aromatic or araliphatic radical of 6 to 21 carbon atoms and is preferably identical with R.sup.1, or R, if n is 1, is a divalent aliphatic or aromatic radical of 2 to 15 carbon atoms or is ##STR2## p being 0 or 2, and R', R" and R"' are hydrogen or alkyl of 1 to 4 carbon atoms, and R" or R"' may also be nitro.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: April 6, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Henning Vogel, Rainer Strickler, Knut Oppenlaender, Richard Baur
  • Patent number: 4322365
    Abstract: Isocyanates are prepared by thermal decomposition of oxalic acid ester amides at not less than 300.degree. C.The isocyanates obtainable by the process of the invention are valuable starting materials for the preparation of crop protection agents, pesticides, dyes, synthetic resins, plastics, textile waterproofing agents, detergents and adhesives.
    Type: Grant
    Filed: May 19, 1981
    Date of Patent: March 30, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Friedrich Towae
  • Patent number: 4322413
    Abstract: Heterocyclic phosphoric acid derivatives of the formula ##STR1## where R, R.sup.1, R.sup.2, R.sup.3, X and Y have the meanings given in the disclosure. The compounds are suitable for combating pests from the class of insects, Acarina and nematodes.
    Type: Grant
    Filed: January 6, 1981
    Date of Patent: March 30, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Annegrit Baumann, Karl Kiehs, Gerhard Hamprecht, Arno Lange, Heinrich Adolphi
  • Patent number: 4322210
    Abstract: An auxiliary for the soaking of hides and skins, which consists of a salt of the formula IM.sup.+ [O.sub.3 S--S--R].sup.- Iwhere R is an organic radical of 1 to 8 carbon atoms, which may carry one or more functional groups, and M.sup.+ is one equivalent of a cation, mixtures thereof with other conventional soaking auxiliaries, and processes for their use. Using the novel auxiliary avoids all toxicity hazards and odor nuisance, as well as avoiding oxidation losses, and achieves good loosening of the hair.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: March 30, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Hahn, Dietrich Lach, Rolf Streicher
  • Patent number: 4322762
    Abstract: A device for positioning objects of low mass, particularly magnetic heads over preselected tracks on at least one magnetic disc in a disc file in which there is provided a carriage, displaceable toward and away from the axis of rotation of the magnetic disc, which serves as carrier not only for the magnetic heads but also for the coil of a linear drive means, the said coil being a flat coil which projects into the working air gap of a magnet assembly comprising at least one flat magnet, the flat coil and magnet assembly being arranged in such a way that the force vector lies essentially in the plane in which the carriage is displaceably mounted.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: March 30, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Manzke, Roland Brotzler
  • Patent number: 4321342
    Abstract: Curable mixtures of polyepoxides and amine-terminated polymers are employed. The amine-terminated polymers are prepared by the in situ free radical polymerization of ethylenically unsaturated monomer or monomers in amine-terminated polyoxyalkylene polyether polymers.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: March 23, 1982
    Assignee: BASF Wyandotte Corporation
    Inventors: John E. Davis, Moses Cenker
  • Patent number: 4321088
    Abstract: A process for treating pig iron melts and steel melts or alloys in a converter, crucible or other vessel, wherein the entire refining and treatment process is carried out in a vessel with carbon dioxide, continuously and up to the finishing of the steel. Liquid carbon dioxide under a pressure of from 4.0 to 20.0 bar is used for the treatment. From about 50 to 300 kg of CO.sub.2 /tonne of steel are required for the refining of the pig iron melt.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Boehm, Engelbert Hillenbrand
  • Patent number: 4321371
    Abstract: Substituted N-benzoylanthranilic acid derivatives of the formula I ##STR1## and their anhydro compounds, of the formula II ##STR2## where R.sup.1 is substituted phenyl,R.sup.2 is hydrogen, nitro, cyano or halogen,X is hydrogen, halogen, nitro or cyano, or is alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylmercapto or alkylmercapto, each of 1 to 4 carbon atoms, andY is --OR.sup.6 or ##STR3## where R.sup.6 is hydrogen, or is alkyl, alkenyl or alkynyl each of up to 4 carbon atoms, or is one equivalent of an alkaline earth metal cation, of an alkali metal cation or of an ammonium ion which is unsubstituted or is substituted by alkyls of 1 to 4 carbon atoms, andR.sup.7 and R.sup.8 independently of one another are hydrogen or alkyl of 1 to 4 carbon atoms, herbicides containing these compounds, and processes for controlling undesired plant growth by means of these compounds.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Parg, Bruno Wuerzer, Gerhard Hamprecht
  • Patent number: 4321390
    Abstract: A process for the preparation of insoluble metal complex colorants of the formula ##STR1## where R, R.sup.1, R.sup.2 and R.sup.3 may be identical or different and each is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, chlorine, bromine, trifluoromethyl or phenyl,Me is copper, cobalt or preferably nickel,Z is NH, O or S andA is one equivalent of an anion,by condensing the corresponding 1,3-diiminoisoindoline and thiazolidine derivative in the molar ratio of 1:1 in water, isolating the 1:1 condensation product, reacting the latter with a metal salt MeA.sub.2 in an aprotic polar water-miscible solvent and isolating the reaction product. The water-containing press cake of the 1:1 condensation product can be used for the reaction with the metal salt MeA.sub.2, in which case the water, together with a part of the solvent, is distilled off during the reaction in which (I) is formed.The process has great economic advantages over the prior art processes.
    Type: Grant
    Filed: April 8, 1980
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventor: Volker Radtke
  • Patent number: 4321341
    Abstract: Thermoplastic segmented elastomeric copolyether-esters which substantially consist of a plurality of recurring short-chain and long-chain ester units linked to one another by ester bonds, the proportion of the short-chain ester units of the formula ##STR1## where R is the divalent radical remaining after removal of the carboxyl groups of aromatic dicarboxylic acids having a molecular weight of <350 and A is the divalent radical remaining after removal of the hydroxyl groups of a diol having a molecular weight of <250, being from 15 to 75% by weight, and the proportion of the long-chain ester units of the formula ##STR2## where R is defined as above and B is the divalent radical remaining after removal of the terminal hydroxyl groups from a long-chain glycol, being from 25 to 85% by weight of the copolyester, and which contain from 0.01 to 5 mole %, based on copolyester, of trifunctional or more highly functional compounds, serving as branching agents, chemically incorporated into the polymer molecule.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Neuberg, Hans G. Matthies, Wolfgang Druschke
  • Patent number: 4321395
    Abstract: A process for the preparation of acetanilides by reacting 2-halo-N-halomethylacetanilides with azoles in a two-phase system, in the presence or absence of a phase transfer catalyst.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Eicken, Wolfgang Rohr, Friedrich Linhart
  • Patent number: 4321167
    Abstract: Liquid detergent compositions which are free of phosphate builders and nitrosamine-forming triethanolamines previously used with approximately 9 to 15 percent of N,N,N',N'-tetrakis(2-hydroxypropyl)ethylene diamine or its equivalent.
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: March 23, 1982
    Assignee: BASF Wyandotte Corporation
    Inventor: Irving R. Schmolka
  • Patent number: 4321055
    Abstract: Dye mixtures containing dyes of the formula I ##STR1## where X is hydrogen, chlorine or bromine,R.sup.1 is hydrogen, methoxy, ethoxy or phenoxy,R.sup.2 is hydrogen, methyl, ethyl, n-propyl or i-propyl andR is ##STR2## where R.sup.3 is C.sub.1 -C.sub.5 -alkyl, allyl, methallyl, crotonyl, prenyl or benzyl,R.sup.4 is unsubstituted or phenyl- or phenoxy-substituted straight-chain or branched C.sub.1 -C.sub.8 -alkyl which may be interrupted by 1, 2 or 3 0 atoms, or is C.sub.3 -C.sub.5 -alkenyl, unsubstituted or chlorine-, bromine-, C.sub.1 -C.sub.4 -alkyl- or C.sub.1 -C.sub.4 -alkoxy-substituted phenyl or benzyl,the mixtures containing not less than 40% of dyeswherein R is ##STR3## or NHC.sub.2 H.sub.
    Type: Grant
    Filed: January 6, 1981
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Wolf-Dieter Kermer, Hans J. Kolbinger
  • Patent number: D263469
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: March 23, 1982
    Assignee: BASF Aktiengesellschaft
    Inventor: Geoffrey M. Lee