Patents Assigned to BASF
  • Manufacture of butynediol
    Patent number: 4067914
    Abstract: In a process for the manufacture of butynediol by the reaction of formaldehyde and acetylene in aqueous solution, in which a catalyst is used which is produced by the action of acetylene and formaldehyde on copper (II) compounds, the catalyst becomes inactive when it is treated for a relatively long period with formaldehyde at elevated temperature in the absence of acetylene so that it must constantly remain in contact with acetylene-containing solution if its temperature is above 70.degree. C.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: January 10, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Reiss, Siegfried Winderl, Wolfgang Schroeder, Herwig Hoffmann
  • Manufacture of arylamines
    Patent number: 4067903
    Abstract: Arylamines are manufactured by reacting alcohols with amines in the presence of phosphorus-III compounds. The arylamines I manufactured by the process of the invention are intermediates for the manufacture of crop protection agents, optical brighteners, especially amino-coumarin derivatives, and dyes, especially of the xanthene, pyronine, rhodamine, oxazine, azo, triphenylmethane and diphenylmethane series.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: January 10, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hoch, Horst Scheuermann
  • Manufacture of N-substituted tetrahydro-1,4-oxazines
    Patent number: 4068077
    Abstract: A new process for the manufacture of N-substituted tetrahydro-1,4-oxazines, also called morpholines, by conversion of N-substituted bis-(2-hydroxyalkyl)-amines in the presence of catalysts.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: January 10, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Goetz, Bernd Zeeh, Martin Decker, Leopold Hupfer, Herbert Toussaint
  • Certain fungitoxic 2-halo-5-trichloromethyl-1,3,4-thiadiazoles
    Patent number: 4066775
    Abstract: This invention relates to new and valuable 2-halo-5-trichloromethyl-1,3,4-thiadiazoles having a good fungicidal action, fungicides containing these compounds as active ingredients, a method of controlling fungi with these compounds, and a process for their manufacture.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 3, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst-Heinrich Pommer, Helmut Hagen, Helmut Fleig
  • Process for the manufacture of polyisocyanurate foams
    Patent number: 4066580
    Abstract: A process for the manufacture of urethane group containing polyisocyanurate foams produced by mixing polyisocyanates and polyols and (if required) frothing agents, auxiliaries and additives in the presence of a co-catalyst system which consists of a 1,3,5-tris(N,N-dialkylaminoalkyl)-s-hexahydrotriazine and an organic mono- or polycarboxylic acid, a polyesterol with an acid number greater than 4 or a mono-ester of polycarboxylic acid.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: January 3, 1978
    Assignee: BASF Wyandotte Corporation
    Inventors: Georg Falkenstein, Gerhard Fahrbach, Harald Wulff
  • Nitrogenous condensation products used as retention aids in papermaking
    Patent number: 4066494
    Abstract: Production of water-soluble crosslinked auxiliaries for the papermaking industry by reactingA. one equivalent of NH groups of a polyalkylene polyamine having from 15 to 500 alkyleneimine units withB. from 0.001 to 0.08 mole of a reaction product obtained from a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin,In aqueous solution at a temperature of from 20.degree. to 100.degree. C. The viscosity of an aqueous solution containing 20% by weight of the crosslinked auxiliaries is from 300 to 1,500 centipoises (20.degree. C).
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: January 3, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Emil Scharf, Rolf Fikentscher, Werner Auhorn, Werner Streit
  • Aromatic polyether-sulfones
    Patent number: 4065437
    Abstract: New thermoplastic polymers based on aromatic polyether-sulfones, which have molecular weights of from about 15,000 to 35,000 and contain units of the formula ##STR1## and a process for their manufacture.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: December 27, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Blinne, Claus Cordes
  • Process for the admixture of additives into plastics with simultaneous removal of volatile constituents
    Patent number: 4065532
    Abstract: A process for admixing additives to plastics and simultaneously removing volatile constituents in a horizontal devolatilizing extruder. Taken in sequence in the direction of flow, the additives are first introduced into the devolatilizing extruder from above, and the plastic melt, solution or dispersion is then introduced from below, while the bulk of the volatile constituents are withdrawn from the devolatilizing extruder at an orifice located vertically above the point at which the plastic is fed in. The process permits the removal of volatile constituents with simultaneous admixture of additives during aftertreatment of plastics, in a single step and at very high throughputs.
    Type: Grant
    Filed: April 3, 1975
    Date of Patent: December 27, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Wild, Guenter Jeckel, Adolf Echte, Johann Zizlsperger, Rudi Wilhelm Reffert, Gunter Thielen
  • 1,3-Didesoxy-1,3-[N,N'-(1',2',3',4'-tetrahydro-1',4'-dio xo)-phthalazino]-inositol compounds
    Patent number: 4065454
    Abstract: The reaction product obtained from cis-benzenetrioxide, hydrazine and phthalic anhydride, and its manufacture. The compounds are intermediates for stereospecific syntheses of aminocyclitols.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: December 27, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Koenig, Horst Prinzbach, Reinhard Schwesinger
  • Manufacture of easily dispersed transparent iron oxide pigments
    Patent number: 4063957
    Abstract: A process for the manufacture of easily dispersed, transparent iron oxide pigments of high tinctorial strength, in which the pigment paste, moist with water, is homogenized under the action of shear forces in the presence of at least one monohydric aliphatic or cycloaliphatic alcohol of 4 to 12 carbon atoms which is partially soluble in water and can be vaporized without decomposition, and the kneaded mixture is then dried under gentle conditions. The pigments are easily dispersed in finishes or binder solutions for printing inks. Very pure and glossy colorations of optimum transparency are obtained.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Peter von Lauff, Wolfgang Fabian, Heidrun Hellstern
  • Process for printing fibrous material
    Patent number: 4064309
    Abstract: A method of printing fibrous materials using a print paste incorporating as emulsifier a di-(.alpha.-phenylethyl)-phenol which has been first reacted with from 2 to 12 moles of propylene oxide and/or butylene oxide and then with from 14 to 30 moles of ethylene oxide.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Gerhard Nestler, Knut Oppenlaender, Guenter Uhl, Ruediger Wissler
  • Manufacture of pyrazines
    Patent number: 4064124
    Abstract: Pyrazines are manufactured by reaction of nitrooxiranes with ammonia. The products are starting materials for the manufacture of dyes, fungicides and pharmaceuticals.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Martin Weitz, Rolf Fischer
  • Halobenzoylpropionate and N,N-diethyl-m-toluamide as insect repellents
    Patent number: 4064268
    Abstract: Inspect repellents containing as active compound a composition of a halobenzoylpropionate and N,N-diethyl-m-toluamide.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Adolphi, Gerhard Bachmann
  • Transfer printing of cellulosic fabrics and transfer for use therein
    Patent number: 4063879
    Abstract: A process for the transfer printing of fabrics containing or consisting of cellulose fibers, by using transfers, wherein the fabric is impregnated with aqueous solutions of compounds which are both solvents for the transfer dyes and potential crosslinking agents for cellulose, dried and printed by the transfer process, in the presence of a cross-linking catalyst, applied from a transfer, with sublimable dyes or optical brighteners.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Faulhaber, Hugo Fuetterer, Harro Petersen, Hermann Schwab
  • Process for the manufacture of shaped articles by graft polymerization
    Patent number: 4064198
    Abstract: Process for the manufacture of shaped articles of a mixture of polystyrene and a copolymer of ethylene with vinyl ester, acrylate or methacrylate. To this end, the said copolymers having a content of from 3 to 40% by weight of unsaturated ester are reacted with monomeric styrene in aqueous suspension in the presence of free-radical polymerization initiators. Whereas a portion of the styrene used is directly grafted onto the ethylene copolymer, the remainder of the polymerized styrene is present in a finely divided state as a homopolymer beside or within the grafted ethylene copolymer. There are obtained homogeneous shaped articles having a styrene content of more than 50% by weight.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Zeitler, Lothar Hoehr, Heinz Mueller-Tamm
  • Removal of phosgene from off-gases
    Patent number: 4064218
    Abstract: Process for the removal of phosgene from an off-gas in which it is present in small quantities, by washing with an aqueous solution of alkali and ammonia.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Scholz, Martin Decker, Franz Neumayr
  • Polybutylene terephthalate molding compositions which are resistant to heat-aging
    Patent number: 4064103
    Abstract: Stabilized polyester molding compositions in which the stabilizer is a carbodiimide of the formula ##STR1## where R is hydrogen, alkyl, halogen or nitro, at least one of the substituents R in the ortho-position to the carbodiimide group must differ from hydrogen, and the carbodiimide molecule contains, as substituents R, 2 alkyl groups and 2 nitro groups, or from 4 to 6 chlorine atoms, or 2 alkyl groups and from 4 to 6 chlorine atoms, or 2 chlorine atoms and 2 nitro groups, or 4 chlorine atoms and 2 bromine atoms.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: December 20, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Claus Cordes, Hans-Josef Sterzel
  • Naphtholactam dyes
    Patent number: 4062845
    Abstract: Condensation products of derivatives of naphtholactam and barbituric acid useful as dyes for synthetic fibers, particularly synthetic linear polyesters, and for coloring resins. The dyes give brilliant yellow to violet shades having outstanding fastness properties.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: December 13, 1977
    Assignee: BASF Aktiengesellschaft
    Inventor: Ernst Schefczik
  • Low-foaming cold-water glasswashing detergent
    Patent number: 4062814
    Abstract: A composition affording satisfactory performance in commercial glassware-cleaning equipment, operating with room-temperature water, is obtained with a composition containing not only a satisfactory proportion of caustic but also a very low-foaming nonionic surfactant and, as a solubilizer for such surfactant, a cycloaliphatic C.sub.21 dicarboxylic acid or one of its alkali-metal or ammonium salts.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: December 13, 1977
    Assignee: BASF Wyandotte Corporation
    Inventor: Gregory Blair Hansen
  • Butynediol manufacture
    Patent number: 4062899
    Abstract: Basic carbonate which contains copper and aluminum and is suitable for the manufacture of copper-containing catalysts and which has the general formula Cu.sub.m Al.sub.6 (CO.sub.3).sub.0.5m O.sub.3 (OH).sub.m+12, where m may be an integer or non-integer between 2 and 6.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: December 13, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Rudolf Laurer, Wolfgang Schroeder, Herwig Hoffmann, Heinz Lingk