Abstract: Copolymers which are obtained by copolymerization ofa) from 5 to 99 mol % of N-vinylcarboxamides,b) from 95 to 1 mol % of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof, and if required,c) up to 30 mol % of other monoethylenically unsaturated compounds, and if required,d) up to 2 mol % of crosslinking agents,and subsequent partial or complete elimination of the acyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking, and the dry and wet strength of the paper.
Type:
Grant
Filed:
May 21, 1996
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Claudia Nilz, Walter Denzinger, Heinrich Hartmann, Michael Kroener, Friedrich Linhart, Rudolf Schuhmacher, Dietmar Moench, Andreas Stange
Abstract: Novel triazoloquinazolines of the formula I ##STR1## where A, X R.sup.1 and R.sup.2 have the meanings stated in the description, and their preparation are described. The compounds are suitable for controlling diseases.
Type:
Grant
Filed:
June 1, 1995
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Rainer Schlecker, Hans-Joerg Treiber, Berthold Behl, Hans P. Hofmann
Abstract: The invention relates to pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures, advantageously having an isocyanate content of from 5 to 25% by weight, based on organic polyisocyanates and polyhydroxyl compounds which are used in combination with a linear, branched or cyclic, saturated or olefinically unsaturated monoalcohol having 1 to 25 carbon atoms and/or hydroxyketones, preferably .beta.-hydroxyketones, the use thereof for the production of one-component polyurethane foams by allowing the isocyanate semiprepolymer mixtures to depressurize, and a process therefor.
Type:
Grant
Filed:
November 29, 1995
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Hans-Juergen Reese, Franz Heimpel, Heinz Forster
Abstract: Blends compriseA) from 55 to 99% by weight of a matrix of copolyarylene ether sulfones composed ofa.sub.1) from 91 to 97 mol % of structural units ##STR1## a.sub.2) from 3 to 9 mol % of structural units ##STR2## B) from 1 to 45% by weight of a disperse phase comprising copolyarylene ether sulfones, composed ofb.sub.1) from 91 to 97 mol % of structural units II andb.sub.2) from 3 to 9 mol % of structural units I,C) from 0 to 40% by weight of rubber impact modifiers,D) from 0 to 60% by weight of fibrous or particulate fillers or of mixtures thereof andE) from 0 to 40% by weight of processing assistants and/or additives.
Type:
Grant
Filed:
January 10, 1995
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Martin Weber, Gerhard Leiter, J urgen Streib, Eckhard M. Koch
Abstract: Polyolefins are thermomechanically degraded in a twin-screw extruder without a downstream degradation apparatus, at from 300.degree. to 550.degree. C. and from 1 to 100 bar and in average residence times of the reaction mixture of from 0.5 to 10 minutes, by a process in which the pressure in the twin-screw extruder is changed periodically or aperiodically with a fluctuation of from 0.5 to 30 bar. The novel process is particularly suitable for the degradation of polypropylene.
Type:
Grant
Filed:
October 19, 1995
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Andreas Deckers, Albin Berger, J urgen Hofmann, Roger Klimesch, Karl-Peter Farwerck, Hilmar Ohlig
Abstract: Thermoplastic molding materials preparedA) from 35 to 99.5% by weight of a matrix copolymer (A) ofa.sub.1) from 50 to 95% by weight of styrene and/or .alpha.-methylstyrene,a.sub.2) from 5 to 50% by weight of acrylonitrile anda.sub.3) from 0 to 20% by weight of further comonomersB) from 0 to 50% by weight of a particulate graft copolymer (B) which is insoluble in (A), has a median particle diameter of from 0.03 to 1 .mu.m and preparedb.sub.1) from 30 to 80% by weight of a core comprising an elastomeric polymer having a glass transition temperature of less than -10.degree. C. andb.sub.2) from 20 to 70% by weight of a graft shell comprising a polymer which is compatible or partly compatible with (A)andC) from 0.5 to 30% by weight of a particulate crosslinked copolymer (C) which is insoluble in (A), has a median particle diameter of from 0.5 to 50 .mu.m and comprisesc.sub.1) from 50 to 89.95% by weight of styrene and/or .alpha.-methylstyrene,c.sub.2) from 10 to 50% by weight of acrylonitrile,c.sub.3) from 0.
Type:
Grant
Filed:
December 4, 1995
Date of Patent:
May 20, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Norbert Guntherberg, Ekkehard Jahns, Wolfgang Fischer, Graham E. McKee, Bernhard Rosenau
Abstract: A method for controlling grass weeds in growing crops comprising administering two acetyl coA carboxylase inhibitors at synergistically effective amounts, i.e., sethoxydim, clethodim, and caloxydim.
Type:
Grant
Filed:
October 27, 1995
Date of Patent:
May 13, 1997
Assignee:
BASF Corporation
Inventors:
Barbara G. Auxier, Wade W. Stewart, Neil P. Stapensea
Abstract: The invention relates to the use of liquid heteric EO/PO, wherein EO is ethylene oxide and PO is propylene oxide, block copolymers, containing at least 30% by weight EO, as a tank mix adjuvant for enhancing the weed killing activity of herbicidal formulations.
Abstract: Disazo dyes of the formula ##STR1## where n is 0, 1 or 2,D is a radical of a diazo component which is free of fiber-reactive groups,R.sup.1, R.sup.2 and R.sup.3 are each hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl,Z is chlorine or unsubstituted or substituted amino andQ is hydroxysulfonylphenylene,are used for printing cellulose-containing materials.
Abstract: The present invention is directed to an aqueous anionic acrylic dispersion produced bya) dispersing an acrylic resin, having functional groups selected from the group consisting of carboxylic acid groups, carboxylic anhydride groups or mixtures thereof in water in the presence of a tertiary amine andb) reacting the carboxylic acid groups on the acrylic resin with an organic compound having at least two oxirane groups,a basecoat and a rheology control agent comprising said aqueous anionic acrylic dispersion, a method of coating a substrate with said dispersion and the coated substrate.
Abstract: A portable holding and mixing tank system for at least two dissimilar liquids includes a tank having at least two fluid-isolated holding compartments (e.g., separate tank units or a dividing wall within the tank interior space) for holding a respective one of the dissimilar liquids. A manifold assembly defines respective channels for the dissimilar liquids and for pressurizing fluid supplied from a source thereof. The liquid and pressurizing fluid channels are fluid-connected to each of the holding compartments. A pressurizing supply conduit fluid-connects the source of pressurizing fluid to pressurizing fluid channel, while liquid supply risers respectively fluid connect the dissimilar liquids contained in each of the holding compartments to the liquid channel defined by the manifold assembly. A liquid discharge port fluid-connects the liquid channel defined by the manifold assembly.
Type:
Grant
Filed:
April 20, 1995
Date of Patent:
May 13, 1997
Assignee:
BASF Corporation
Inventors:
Matthew N. Roach, Neil Stapensea, Jon Webster
Abstract: A method for producing halogen-free, antimony-free and phosphorous-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: Solid, non-hygroscopic magnesium salt of 3-isopropyl-2,1,3-benzothiadiazin-4-ones 2,2-dioxide (I), processes for its preparation, solid formulations, in particular granules, which contain this salt, and the use thereof for controlling undesirable plant growth.
Type:
Grant
Filed:
October 26, 1995
Date of Patent:
May 6, 1997
Assignee:
Basf Aktiengesellschaft
Inventors:
Karl-Friedrich Jaeger, Adolf Parg, Alfons Durein
Abstract: Luster pigments based on multiply coated plateletlike silicatic substrates, obtainable by further coating substrates already coated with a first layer comprising a colorless or selectively absorbing metal oxidea) initially with a second, nonselectively absorbing layer consisting essentially of carbon, a metal or a metal oxide, andb) if desired subsequently with a third layer comprising colorless or selectively absorbing metal oxide, wherefor the carbon layer (step a) is applied by thermal decomposition of oxygen-containing hydrocarbons that for every two carbon atoms contain at least one oxygen atom, the metal layer (step a) is applied by gas phase decomposition of volatile compounds of these metals in an inert gas, and the metal oxide layer (step a and/or b) is applied by gas phase decomposition of volatile compounds of these metals in the presence of oxygen, water vapor or mixtures thereof to the substrates coated in case a) with a first metal oxide layer and in case b) additionally with a nonselectively ab
Type:
Grant
Filed:
June 13, 1994
Date of Patent:
May 6, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Raimund Schmid, Norbert Mronga, Harald Ochmann, Joerg Adel
Abstract: In a process for the recovery of N-ethylpiperazine by distillation from mixtures with N,N'-diethylpiperazine, piperazine, ethanol, water and accompanying substances, water is added in a manner such that, at the location of the addition of the water, the piperazine concentration is greater than the N-ethylpiperazine concentration. The water may be added to the reflux to the top of the column.
Type:
Grant
Filed:
August 2, 1995
Date of Patent:
May 6, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Klaus-Dieter Malsch, Douglas Hutton, Ernst Lang
Abstract: Anilines of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, unsubstituted or substituted alkyl, alkenyl or unsubstituted or substituted phenyl orR.sup.1 and R.sup.2, together with the nitrogen atom linking them are a heterocyclic radical or R.sup.1 may furthermore be unsubstituted or substituted hydroxyl or unsubstituted or substituted amino,R.sup.3 and R.sup.7 are each hydrogen, unsubstituted or substituted alkyl, alkenyl, cyano, nitro, acyl, acylamino, unsubstituted or substituted hydroxyl, unsubstituted or substituted carboxymethyl, unsubstituted or substituted amino, unsubstituted or substituted mercapto or unsubstituted or substituted sulfamoyl or, together with R.sup.2, are alkylene, alkenylene or phenylalkenylene,R.sup.4 is hydrogen, unsubstituted or substituted alkyl, alkenyl, unsubstituted or substituted hydroxyl, unsubstituted or substituted amino, unsubstituted or substituted carboxyl or unsubstituted or substituted sulfamoyl andR.sup.5 and R.sup.
Abstract: A proces for the preparation of 2,5-dihydrofurans of the general formula I ##STR1## in which the radicals R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are the same or different and stand for hydrogen or C.sub.1 -C.sub.4 alkyl groups, by the catalytic rearrangement of 3,4-epoxy-1-butenes of the general formula II ##STR2## in the presence of a Lewis acid or elementary iodine and in the presence or absence of an organic solubilizing agent at a temperature of from 60.degree. to 200.degree. C., wherein the reaction is carried out in the presence of a phosphazenium halide or a phosphazanium halide or in the presence of mixtures of phosphazenium and phosphazanium halides.
Abstract: A supported catalyst system that is obtained bya) reacting a finely divided carrier with an a-trisalkoxy-silyl-.omega.-haloalkyl compound,b) adding a metallocene complex of the indicated formula I to the reaction product of a);c) reacting the product of b) with a quaternizing agent; andd) optionally adding an open-chain or cyclic alumoxane compound.The catalyst system can be used to prepare polymers of C.sub.2 -C.sub.10 -alk-1-enes.
Type:
Grant
Filed:
March 1, 1995
Date of Patent:
May 6, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Elke Barsties, Hans-Herbert Brintzinger, Stefan Schaible, Werner Roell
Abstract: There are described the use of copolymers obtainable by free-radically initiated copolymerization of monomer mixtures comprising(a) 60-99% by weight of 1-vinylpyrrolidone, 1-vinylimidazole or mixtures thereof,(b) 1-40% by weight of nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of salts or in quaternized form, and optionally(c) up to 20% by weight of other monoethylenically unsaturated monomers,as detergent additives for inhibiting dye transfer during the wash, detergents which contain such polymers, and polymers which are obtainable by free-radically initiated polymerization of(a) 1-vinylpyrrolidone, 1-vinylimidazole, 1-vinylimidazolium compounds, or mixtures thereof, and optionally(b) other nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of the salts or in quaternized form, and/or(c) other monoethylenically unsaturated monomers,in an aqueous medium in the presence of water-soluble proteins and
Type:
Grant
Filed:
April 21, 1995
Date of Patent:
May 6, 1997
Assignee:
BASF Aktiengesellschaft
Inventors:
Juergen Detering, Christian Schade, Wolfgang Trieselt, Juergen Tropsch
Abstract: Plant growth regulator (PGR) compositions include a plant growth regulating effective mixture of (A) a N,N-dimethyl piperidinium salt (preferably, mepiquat chloride), (B) a hexitol (preferably, myo-inositol), and optionally (C) a compound which. promotes cytokinesis in plant cells (i.e., a cytokinin). The hexitol and cytokinin are most preferably provided collectively in the composition by the presence of an effective amount of coconut milk. Synergistic results in terms of enhanced cotton lint yields are obtained by applying the PGR compositions of this invention to growing cotton plants.
Type:
Grant
Filed:
June 5, 1995
Date of Patent:
May 6, 1997
Assignee:
BASF Corporation
Inventors:
Thomas D. O'Neal, David E. Millhouse, Wilhelm Rademacher