Abstract: Dye mixtures comprising at least 4 dyes of the same color having the formula ##STR1## where D is the radical of a diazo component of the aminoanthraquinone, aniline, aminothiophene, aminothiazole, aminoisothiazole, aminothiadiazole or aminobenzisothiazole series,one of X1 and X2 is substituted or unsubstituted phenylamino while the other is a radical of the formula NH--L--O--R, where L is substited or unsubstituted C.sub.2 -C.sub.8 -alkylene, andR is hydrogen, C.sub.1 -C.sub.4 or C.sub.1 -C.sub.3 -alkanoyl,are useful for dyeing or printing textile materials.
Type:
Grant
Filed:
February 20, 1996
Date of Patent:
April 22, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Gunther Lamm, Hermann Loeffler, Helmut Reichelt
Abstract: The process according to the invention is a process for the production of aligned, ferroelectrically or ferrielectrically or antiferroelectrically ordered materials which solidify in a glass-like manner. In these layer structures with polar order, the molecular dipole moments are uncompensated, partially compensated or fully compensated, so that a dipole moment corresponding to the degree of compensation, acts externally.
Type:
Grant
Filed:
July 6, 1995
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Volker Bach, Karl-Heinz Etzbach, Karl Siemensmeyer, Gerhard Wagenblast
Abstract: A spin pack for spinning synthetic fibers from two or more liquid polymer streams includes a supply for at least two polymer streams to the spin pack; a spinneret having extrusion orifices; and flow distribution plate sets. The flow distribution plate sets include at least one patterned plate having edges which define a substantially regular two-dimensional geometric shape, a substantially planar upstream surface, a substantially planar downstream surface and at least one flow distribution pattern stenciled therein by cutting through. For each patterned plate, at least one boundary plate stacked sealingly adjacent thereto and having edges which define a substantially regular geometric shape, a substantially planar upstream surface and a substantially planar downstream surface. The boundary plate has cut-through holes connecting the upstream surface with the downstream surface to form at least one flow-through channel to allow fluid flow through the patterned plate but otherwise is substantially solid.
Abstract: Bridged half sandwich complexes are prepared by reacting cyclopentadienides with aziridines and subsequently adding metallating agents and transition metal compounds.
Type:
Grant
Filed:
May 5, 1995
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Franz Langhauser, Hans-Joachim M uller, J urgen Kerth, G unther Schweier, Bernhard Rieger
Abstract: Soft leathers with a pleasant hand are obtained on fatliquoring and filling leather and fur skins with water-soluble or water-dispersible graft polymers of vegetable and animal oils, obtainable by radically initiated polymerizationA) of a monomer or monomer mixture comprising(a) from 20 to 100% by weight of monoethylenically unsaturated carboxylic acids and/or monoethylenically unsaturated sulfonic acids and/or monoethylenically unsaturated phosphonic acids or their alkali metal, alkaline earth metal or ammonium salts,(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a), and(c) from 0 to 5% by weight of at least doubly ethylenically unconjugatedly unsaturated monomersin the presence ofB) vegetable and/or animal oils in a weight ratio of A:B of (80-1):(20-99).
Type:
Grant
Filed:
March 3, 1994
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Michael Kneip
Abstract: Solid particles are coated in a fluidized bed by application of a gaseous coating agent from a plasma, wherein the plasma is generated outside the fluidized bed under 0.01-500 mbar, and the plasma-activated gas is passed into the fluidized bed, which is operated under 0.1-500 mbar, wherea. the plasma is generated from the total amount of gaseous coating agent with or without another gas, orb. the plasma is generated from a portion of the gaseous coating agent with or without another gas, and the remaining portion is introduced directly into the fluidized bed, orc. the plasma is generated from another gas, and the total amount of gaseous coating agent is introduced directly into the fluidized bed.
Type:
Grant
Filed:
November 29, 1994
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Klaus Harth, Hartmut Hibst, Wolfgang Mattmann
Abstract: The present invention relates to a process for the preparation of thermoplastic polyurethane by reacting a) organic and/or modified organic polyisocyanates with b) at least one oligomeric polyhydroxy and/or polyamino compound having an average molecular weight of from 400 to 10,000 g/mol, in the presence or absence of c) chain extenders having at least two Zerewitinoff-active hydrogen atoms and an average molecular weight of less than 400 g/mol, d) catalysts, e) compounds which are less than difunctional with respect to isocyanates and/or isocyanates which are less than difunctional and, f) assistants and/or additives, in a twin-screw extruder in which both screws rotate in the same direction and which has a length of/diameter ratio of from 20 to 6 and discharging the resulting thermoplastic polyurethane from the extruder with shaping.
Type:
Grant
Filed:
October 12, 1995
Date of Patent:
April 15, 1997
Assignee:
BASF Schwarzheide GmbH
Inventors:
Peter Eberhardt, Ruediger Krech, Udo Rotermund, Klaus Techritz
Abstract: Azo dyes of the formula ##STR1## where D is the radical of a diazo component, andX is substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene,in the form of the free acid or its salts, the use thereof for dyeing or printing natural or synthetic substrates, sulfopyridones as coupling components for these dyes, and a process for preparing them.
Type:
Grant
Filed:
December 28, 1995
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Gunther Lamm, Helmut Reichelt, Matthias Wiesenfeldt
Abstract: 4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.
Type:
Grant
Filed:
January 30, 1996
Date of Patent:
April 15, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Friedhelm Lehrich, Siegmund Pohl, Bernd Bruchmann, Helmut Tesch, Roland Minges, Johann Swoboda, Manfred Genz, Guenter Scholz, Joachim Streu
Abstract: A process for the separation of a mono(meth)acrylate of a C.sub.4 -C.sub.6 alkanediol from an aqueous solution containing a mono(meth)acrylate of a C.sub.4 -C.sub.6 alkanediol and the said C.sub.4 -C.sub.6 alkanediol, by extraction with an organic solvent, in which the extracting agent used is an organic solvent selected from the group comprising esters of C.sub.1 -C.sub.4 alkanecarboxylic acids and C.sub.1 -C.sub.5 alkanols, single and mixed dialkyl ethers having from 4 to 8 C atoms, and mixtures of such organic solvents.
Type:
Grant
Filed:
October 5, 1995
Date of Patent:
April 8, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Toni Dockner, Helmut Lermer, Ulrich Rauh, Gerhard Nestler
Abstract: The present invention to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles, and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageous physical properties, and compositions useful for producing such articles.In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting of polytetrahydrofuran and polyethylene glycol having a number average molecular weight of from 200 to 2000 and optionally, one or more additives (e) from the group consisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof.
Abstract: Mixtures of optically active cyclohexenone oxime ethers having R- and S-configuration in the oxime ether moiety of the formula I ##STR1## (R.sup.1 =C.sub.1 -C.sub.6 -alkyl; ##STR2## X=C.sub.1-C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl; m=0-3 or 1-4 where all X's are halogen;n=0-3 or 1-5 where all X's are halogen;R.sup.2 =C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.6 -alkyl, substituted or unsubstituted C.sub.3 -C.sub.7 -cycloalkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkenyl, substituted or unsubstituted 5-membered saturated heterocyclic structure, substituted or unsubstituted 6- or 7-membered heterocyclic structure, substituted or unsubstituted 5-membered heteroaromatic structure, substituted or unsubstituted phenyl or pyridyl)and their agriculturally useful salts and esters with C.sub.1 -C.sub.10 -carboxylic acids and inorganic acids.
Type:
Grant
Filed:
August 11, 1994
Date of Patent:
April 8, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Ulf Misslitz, Norbert Meyer, Juergen Kast, Wolfgang Ladner, Helmut Walter, Karl-Otto Westphalen, Uwe Kardorff, Matthias Gerber
Abstract: An aqueous detergent slurry composition comprising (A) about 5-60% of inorganic builder salts; (B) about 5-70% of detergent active matter selected from the group consisting of anionic, nonionic, cationic, amphoteric and zwitterionic surfactants; and (C) about 0.01-10% of a hydrophilic copolymer comprising a hydrophilic monomer copolymerized with an oxyalkylated monomer.
Type:
Grant
Filed:
May 23, 1995
Date of Patent:
April 8, 1997
Assignee:
BASF Corporation
Inventors:
Sridhar Gopalkrishnan, Kathleen M. Guiney, John V. Sherman, David T. Durocher, Michael C. Welch
Abstract: Disclosed is a fiber-forming polymer blend, comprising:a) a polyamide;b) a miscible amorphous polymer; andc) an immiscible amorphous polymer.
Abstract: 3,4-Epoxy-1-butene is prepared by the gas phase epoxidation of 1,3-butadiene by means of oxygen or oxygen-containing gases over silver-containing catalysts and isolation of the 3,4-epoxy-1-butene from the reaction exit mixture by performing the gas phase epoxidation in the presence of from 6 to 80 mol % of water vapor, based on the gas mixture supplied to the reactor.
Type:
Grant
Filed:
March 17, 1995
Date of Patent:
April 8, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Stefan Boeck, Klaus Herzog, Rolf Fischer, Herbert Vogel, Martin Fischer
Abstract: A method for producing halogen-free, antimony-free and phorphorous-free polyamide fibers is described by incorporating an additive into the polyamide which comprises a vulcanizable mixture of silicones and a catalyst in a thermoplastic matrix. The fibers have improved flame retardancy and are used for the manufacture of carpets.
Abstract: Copolymers of propylene with other 1-alkenes, obtainable by gas-phase polymerization of a mixture of propylene and another 1-alkene in the absence of a liquid reaction medium under a pressure of from 15 to 30 bar, at from 60.degree. to 90.degree. C. and with an average holdup time of the polymer of from 1 to 5 hours, with the aid of a Ziegler-Natta catalyst system which, besides a titanium-containing solid component, contains an aluminum component and an electron donor, with the temperature being chosen so that, under the preset pressure, no condensation of the monomer mixture takes place in the gas space and, moreover, the ratio of the partial pressures of propylene and the other 1-alkene is adjusted to from 5:1 to 100:1, are particularly suitable for producing sheets and shaped articles.
Type:
Grant
Filed:
September 16, 1993
Date of Patent:
April 8, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Juergen Kerth, Peter Koelle, Ralf Zolk, Harald Schwager
Abstract: A process for the stereoselective preparation of (-)3a,6,6,9a-tetramethylperhydronaphtho[2,1-b]furan of the formula Ia ##STR1## by dehydration and cyclization of decahydro-2-hydroxy- 2,5,5,8-tetramethyl-1-naphthaleneethanol using solid acidic catalysts, wherein the decahydro-2-hydroxy- 2,5,5,8-tetramethyl-1-naphthaleneethanol is heated in the molten state at from 80.degree. to 200.degree. C. in the presence of from 10 to 100% by weight, based on the diol, of an active acidic aluminum oxide commercially supplied for (preparative) column chromatography.
Abstract: Dyestuff-containing aqueous dispersions obtainable bya) preparation of at least two copolymers A) and B) in an organic solvent by solution polymerization,A) containing from 5 to 50 % by weight, based on A), of an ethylenically unsaturated acid andB) being essentially free of ethylenically unsaturated acids and the solution polymerization of the copolymers A) or B) being carried out in the presence of the other respective copolymer A) or B) already prepared,b) addition of a dyestuff before, during or after the solution polymerization,c) dispersion of the resulting solution in water andd) removal of the organic solvent if desired, are described.
Type:
Grant
Filed:
June 28, 1995
Date of Patent:
April 1, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Bernhard Schlarb, Kurt Wendel, Helmut Bellaire, Karin H. Beck
Abstract: Preparation of 5-cyanovalerates (I) by the carbonylation of a 1-cyanobutene with carbon monoxide and an alkanol (II) corresponding to the ester radical at an elevated temperature and under superatmospheric pressure in the presence of a cobalt catalyst as well as in the presence of an activating solvent, in which the activating solvent used is an effective amount of a urea of the formula IIIcR.sub.2 N--CO--NR.sub.2 (IIIc)where R is, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or where 2R groups together form 5-membered to 7-membered rings. The end products I serve as intermediates, chiefly for the preparation of .epsilon.-caprolactam.
Type:
Grant
Filed:
April 10, 1995
Date of Patent:
April 1, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Stefan Stahl, Wolfgang Harder, Arthur Hoehn