Patents Represented by Law Firm Plumley & Tyner
  • Quinophthalone dyestuffs
    Patent number: 4101551
    Abstract: The invention relates to water-insoluble quinophthalone dyestuffs of the formula ##STR1## in which T represents W--Ar or ##STR2## and Ar denotes aryl,W denotes oxygen, sulphur or N--R,R denotes hydrogen or alkyl,A denotes alkylene, O R.sub.1 denotes alkyl or aryl,R.sub.2 denotes hydrogen or alkyl,X denotes halogen, alkyl, alkoxy, nitro or acylamino,Y denotes hydrogen or halogen,Z denotes hydrogen, alkyl or halogen andn denotes a number from 0 to 3The new dyestuffs and their mixtures are distinguished by good affinity to polyester fibres and good general fastness properties.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: July 18, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Groll, Hans-Samuel Bien, deceased
  • Direct granulation process for triple superphosphate
    Patent number: 4101637
    Abstract: Process for producing triple superphosphate by reacting dilute phosphoric acid and lime, limestone or dolomite and granulating the resultant product.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: July 18, 1978
    Assignee: J. R. Simplot Company
    Inventors: Laurence William Bierman, Gary Lynn Long
  • Water-soluble phenol/formaldehyde condensation products
    Patent number: 4101489
    Abstract: Water-soluble condensation products which are obtained by reacting mononuclear phenol/formaldehyde/bisulphite condensation products with formaldehyde and, if appropriate, notrogen-containing compounds of a type which can react with at least 2 equivalents of formaldehyde, can be used as dispersing agents.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: July 18, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunther Reitz, Gunther Boehmke
  • Process for the selective destruction, by reduction, of p-coupled products of the 1-naphthol series
    Patent number: 4101542
    Abstract: Para-coupled products of the 1-naphthol series can be destroyed in the presence of the ortho-coupled product by reduction with salts of dithionous acid or of hydroxymethanesulphinic acid or with hydrazine optionally in the presence of redox-catalysts.
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: July 18, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Erich Kramer
  • Process for preparing acrylonitrile/vinyl chloride copolymers having an increased viscosity which comprises using anionic/non-ionic emulsifier blends
    Patent number: 4100339
    Abstract: The invention relates to a process for the production of chemically uniform copolymers of acrylonitrile and vinyl chloride and, optionally, other copolymerizable ethylenically unsaturated compounds, by the method of emulsion polymerization in the presence of an anion active emulsifier and a non-ionic emulsifier.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: July 11, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Konig, Carlhans Suling, Gunther Boehmke
  • Process for producing gamma quinacridone solid solutions
    Patent number: 4099980
    Abstract: A method is provided for the production of gamma quinacridone solid solutions which comprises ring-closing a mixture comprising 80-99 weight percent of dianilinoterephthalic acid and 1-20 weight percent of di(ortho-substituted) anilinoterephthalic acid, 4,11-disubstituted quinacridone, or mixtures thereof, and drowning the product into a water miscible alcohol containing from 1 to 3 carbon atoms.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: July 11, 1978
    Assignee: Harmon Colors Corporation
    Inventor: Robert Jarl North
  • Process for preparing gamma quinacridone from polyphosphoric acid and alcohol
    Patent number: 4100162
    Abstract: A method is provided for the direct production of gamma quinacridone pigment comprising ring closure of 2,5-dianilinoterephthalic acid in polyphosphoric acid and diluting the mixture by addition thereof into a water-miscible alcohol containing 1-3 carbon atoms, e.g. methanol, while maintaining the temperature of the alcohol-acid at between 0.degree. and 25.degree. C.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: July 11, 1978
    Assignee: Harmon Colors
    Inventor: Robert Jarl North
  • Filaments which may be cross-linked comprising at least 65% acrylonitrile and 0.5-10% N-methylol derivative of a urethane
    Patent number: 4100143
    Abstract: The invention relates to cross-linkable or cross-linked filaments or fibers of a copolymer comprising at least 65% by weight of acrylonitrile and from 0.5 to 10% by weight of at least one copolymerised N-methylol compound of an unsaturated mono- or bis-urethane or an alkyl ether thereof and, optionally, at least one other copolymerisable monomer.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: July 11, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Dieter Wolf, Werner Schnoor, Jean-Claude Voegele, Ulrich Reinehr, Gunther Nischk
  • Dyestuff laser
    Patent number: 4100509
    Abstract: A dye laser employing a solution of: ##STR1## wherein R and R.sub.1 independently of one another represent hydrogen, alkyl, cycloalkyl or aralkyl or can form, with R.sub.2 or R.sub.3, or with R.sub.4 or R.sub.5, a partially hydrogenated 5-membered or 6-membered heterocyclic ring, R.sub.2 - R.sub.5 independently of one another represent hydrogen, alkyl, alkoxy or halogen or can form, with R or R.sub.1, a partially hydrogenated 5-membered or 6-membered heterocyclic ring,Me represents hydrogen, a monovalent or divalent metal cation, or the ammonium, monoalkylammonium, dialkylammonium or trialkylammonium radical, and m and n denote a number between 1 and 4,And whereinThe rings, A, B and C as well as the aliphatic or aromatic radicals present in the formula can also be substituted further,In a concentration which emits laser beams, preferably of 10.sup.-2 to 10.sup.-5 mol litre.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: July 11, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Walther, Wolfgang Hartig, Adolf Friedrich, Roderich Raue
  • Bulk dyeing of polyesters
    Patent number: 4096111
    Abstract: Process for the bulk dyeing of synthetic linear polyesters, characterized in that one or more dyestuffs of the formula ##STR1## WHEREIN R.sub.1 and R.sub.2 denote hydrogen or a non-ionic substituent, m denotes an integer from 0 to 2 and n denotes an integer from 1 to 4 and m and n together are not greater than 4, are employed.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: June 20, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rutger Neeff, Heinz Dietrich Jordan
  • Coating apparatus
    Patent number: 4095558
    Abstract: The invention is related to a process for the quantitative application of liquid systems in a thin layer to natural or synthetic fibres or filaments travelling uniformly along a linear path by the one-way technique using a forced-dosage unit, distinguished by the fact that fibres or filaments are guided past at least one slot which is either curved or provided with partial curves, and are brought into contact with an optionally foamed liquid issuing from the slot.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: June 20, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Konrad Ellegast, Fritz Feld, Karlheinz Feltgen, Horst Greiner, Armin Kohler, Wolfgang Kuhn, Richard Menold, Heinrich Nassenstein, Roland Weisbeck
  • Auxiliary agent for improving retention, drainage and treatment
    Patent number: 4093605
    Abstract: Auxiliary agent for improving the retention of flushable solids, the drainage of suspensions and the rapid treatment of industrial waters, effluents and sludges, especially in paper making which comprises the crosslinking of an intermediate product A with another intermediate product B in the presence of an polyfunctional compound to form the auxiliary agent C, wherein the intermediate product A comprises polyamines which contain quaternary nitrogen and which are formed by the action of polyvalent and/or monovalent amines on the reaction products of the secondary amine hydrochlorides with epichlorohydrin and wherein the intermediate product B comprises basic-polyamino-amides.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: June 6, 1978
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Lutz Hoppe, Branislav Boehmer, Rudolf Behn
  • Whiteners, their preparation and use
    Patent number: 4090018
    Abstract: 2-Styrylbenztriazoles of the formula ##STR1## in which R denotes C.sub.1 -C.sub.4 -alkyl, benzyl or C.sub.1 -C.sub.4 -alkoxyethyl are suitable for whitening organic materials.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: May 16, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Josef Schroeder
  • Process for the preparation of opaque organic pigments
    Patent number: 4089700
    Abstract: Organic pigments which provide an opaque color impression in binders and exhibit adequate flow properties in binders are obtained from pigments which provide a transparent color impression in binders in a simple way in that an azeotrope-forming agent which is appropriate for the liquid adhering to the pigment is added to the moist pigment obtained after the preparation, and the azeotropic mixture and any excess solvent which may be present are then distilled off.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: May 16, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Brandt, Reinhold Hornle, Karlheinz Wolf, Hans-Heinz Molls
  • Sulfo containing disazo dyestuffs derived from diazotized 4,4'-diaminobenzanilide, a 1-phenyl-3-methyl-5-aminopyrazole coupler and a second coupler
    Patent number: 4089851
    Abstract: Disazo dyestuffs of the formula ##STR1## IN WHICH K represents the radical of a coupling component of the benzene, acetoacetic acid arylide, pyrazolone or aminopyrazole series,R.sub.1 and R.sub.2 denote hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen andN denotes 1 or 2,Are suitable for the dyeing of natural and synthetic fibre materials and paper in greenish to reddish yellow shades. The dyeings particularly on polyamide have good to very good light fastness and good fastness to water and washing.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: May 16, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hans Kramb
  • 1-Amino-4-methoxybenzene-2,5-disulfonic acid
    Patent number: 4089895
    Abstract: New azo reactive dyestuffs corresponding to the general formula ##STR1## wherein R denotes optionally substituted lower alkyl, A the radical of an optionally substituted lower alkyl, R.sub.1 hydrogen or optionally substituted lower alkyl and Z a reactive group.They are useful for dyeing and printing materials containing hydroxyl groups or amide groups.
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: May 16, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Horst Jager
  • Process for the preparation of styryl dyestuffs
    Patent number: 4088673
    Abstract: Process for the preparation of styryl dyestuffs, characterized in that, in a one-pot reaction, amines of the general formula form ##STR1## wherein R.sub.1 denotes alkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 -r.sub.6 denote hydrogen or non-ionic substituents, preferably alkyl, alkoxy, nitro or halogen or R.sub.1 with R.sub.3 or R.sub.5 conjointly from the remaining members of a 5-membered or 6-membered ring system which optionally contains further hetero-atomsAre treated with at least 1 equivalent of a Vilsmeier reagent, unconverted Vilsmeier reagent is decomposed, the pH value is adjusted to above 4 by addition of bases and subsequently--without any intermediate isolation--the product is treated with a methylene-active compound of the formula ##STR2## wherein X represents a nitrile or acyl group.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: May 9, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Gomm, Hermann Beecken
  • Compounds having both peroxy and aliphatic azo groups
    Patent number: 4088642
    Abstract: I. Compounds having independent peroxidic (X) and aliphatic azo groups of the formula[(R-N.dbd.N-R').sub.m -X].sub.nExample: di-t-butylperoxy ester of cis-4,4'-azobis-(4-cyanovaleric acid).Ii. a method of making a block polymer where vinyl monomer is initiated sequentially to produce in one instance: a polymer having azo-carbon linkages present, which is then reacted with vinyl monomer under conditions to rupture the azo-carbon linkages, and in another instance: a polymer having peroxy-carbon linkages present, which is then reacted with vinyl monomer under conditions to rupture the peroxy carbon linkages.
    Type: Grant
    Filed: October 24, 1973
    Date of Patent: May 9, 1978
    Assignee: Pennwalt Corporation
    Inventors: Chester S. Sheppard, Ronald E. MacLeary, Richard A. Bafford
  • Acylamino quinophthalone compounds
    Patent number: 4088651
    Abstract: Acylamino quinophthalone compounds which are free from sulfonic acid groups and correspond to the formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen, halogen, acylamino or lower alkoxy with the proviso that one of the residues R.sub.1 and R.sub.2 denotes acylamino while the other residue stands for hydrogen, halogen or a lower alkoxy; R.sub.3 is hydrogen, halogen or a lower alkoxy; X is a substituent; and n is a number from 0 to 3; are disclosed. The compounds useful as dyestuffs for hydrophobic fiber materials, e.g. polyester, are prepared by reacting an acylamino phthalic acid, the anhydride thereof, or mixtures of acylamino phthalic acids or the anhydrides thereof with a 3-hydroxy-quinalide.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 9, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietmar Kalz, Gerhard Wolfrum
  • Process for the preparation of concentrated solutions of anionic dyestuffs
    Patent number: 4087245
    Abstract: Stable, concentrated solutions of anionic dyestuffs are prepared by reacting the alkali metal or ammonium salts of anionic dyestuffs and brighteners, which are usually obtained from the industrial preparation process, in water-soluble organic solvents, optionally in the presence of water, with salts of nitrogen bases which impart hydrophilic properties, in accordance with the reaction equationMe.sub.n F + nB.multidot.A.fwdarw.Bn.multidot.F + nMeAin whichMe denotes an alkali metal or ammonium ion,B denotes a protonated or quaternized nitrogen base,A denotes the anion of an acid,N denotes an integer from 1 to 4 andF denotes the anion of a dyestuff acid,And separating the resulting solutions from the salt n.multidot.MeA, which is insoluble in the reaction mass.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: May 2, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erich Kramer, Wolf Eckhard Bleck