Patents Represented by Law Firm Plumley & Tyner
  • Stabilizing crosslinkable copolymers comprising acrylonitrile, N-methylol alkyl ether of unsaturated carboxylic acid amide with (a) amide (b) lactam or (c) urea compounds
    Patent number: 4076925
    Abstract: The invention relates to a process for the production of stabilized, crosslinkable copolymers of acrylonitrile with N-methylol alkyl ethers of unsaturated carboxylic acid amides and optionally other comonomers by polymerizing in the presence of a stabilizer compound containing a carboxylic acid amide group such as amide, urea or lactam.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: February 28, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Theo Neukam, Ulrich Reinehr, Francis Bentz, Gunther Nischk
  • Skin protective compositions
    Patent number: 4075318
    Abstract: Compositions effective for protecting the skin from dermatologic irritation are formed by incorporating a protective agent which is an organic compound containing two or more polar groups, e.g. carboxyl groups, which are separated by at least 15 atoms the majority of which are carbon atoms and preferably containing a cyclic moiety of at least 5 atoms, e.g. the dimer of linoleic acid, in a pharmaceutically acceptable base.
    Type: Grant
    Filed: June 15, 1970
    Date of Patent: February 21, 1978
    Assignee: Cincinnati Milacron, Inc.
    Inventors: Ralph Kelly, Edmond Jean Ritter
  • Mixtures of .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-p-and -m-diisopropylbenzenes, a process for the preparation thereof and the use thereof as stabilizers
    Patent number: 4073746
    Abstract: The invention relates to mixtures of .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-m-diisopropylbenzene and .alpha.,.alpha.'-bis-(2-hydroxy-3,5-dialkylphenyl)-p-diisopropylbenzen e which contain at least 20% by weight and preferably from 40 to 70% by weight of the m-compound. Moreover, the invention relates to a process for the production of such mixtures. The mixtures are suitable for stabilizing polyurethanes and other synthetic polymers against discoloration and degradation when exposed to visible and/or UV light and/or atmospheric constituents such as oxygen oxides or nitrogen and waste gases from combustion. Particularly, they are suitable for stabilizing threads and foils of these products including coatings.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: February 14, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Josef Buysch, Harald Oertel, Ernst Roos
  • Dyestuff laser
    Patent number: 4072911
    Abstract: A dyestuff laser which consists of a reservoir for the dyestuff solution and an energy source, coupled thereto, which is capable of exciting the dyestuff solution to produce an emission, the radiation generated lying in the wavelength range of 550 to 680 nm. The dyestuff is a sulforhodamine.
    Type: Grant
    Filed: May 1, 1975
    Date of Patent: February 7, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Walther, Wolfgang Hartig, Adolf Friedrich, Roderich Raue
  • Optical brighteners
    Patent number: 4071466
    Abstract: Pyrazoline compounds of the formula ##STR1## wherein R represents C.sub.3 -C.sub.20 -alkyl and X, Y and Z independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, trifluoromethyl, C.sub.1 -C.sub.4 -alkoxy, aryl or acylamino, are useful as optical brighteners for macromolecular materials.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: January 31, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Schroeder, Carl-Wolfgang Schellhammer
  • Process for texturing synthetic yarns
    Patent number: 4070817
    Abstract: The invention relates to a process for the simultaneous drawing and texturing of synthetic yarns by the false-twist method comprising interlacing the unstretched or partially stretched yarn by means of an interlacing device before entering the texturing zone of the texturing machine.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: January 31, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Bueb, Harry Kubitzek, Arthur Langhans, Wolfgang Rellensmann, Wolfram Wagner
  • Process for the preparation of acyltaurides
    Patent number: 4071543
    Abstract: Preparation of acyltaurides of the general formulaR -- CO -- NH -- CH.sub.2 -- CH.sub.2 -- SO.sub.3 MwhereinR denotes a C.sub.7 --C.sub.21 --alkyl or --alkenyl radical, which can be substituted by one or two hydroxyl groups, and M denotes an alkali metal or alkaline earth metal cation, ammonium or mono-, di- or tri-alkanolammonium, by reacting the corresponding fatty acids or their mixtures, urea and alkali metal hydroxyethanesulphonates or alkaline earth hydroxyethanesulphonates and, optionally by converting the reaction products into the ammonium or mono-, di- or tri-alkanolammonium salts.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: January 31, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Gunther Boehmke
  • Monomethylol ether diols and polyurethane solutions prepared therefrom
    Patent number: 4070345
    Abstract: The invention relates to monomethylol ether diols corresponding to the formula ##STR1## in which R represents a straight-chain or branched alkylene radical having up to 12 carbon atoms, andR' represents an alkyl radical.
    Type: Grant
    Filed: September 21, 1976
    Date of Patent: January 24, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Dieter Winkelmann, Harald Oertel, Norbert Weimann
  • Coumarins containing sulphonylamino groups
    Patent number: 4069228
    Abstract: Coumarins of the formula ##STR1## wherein R denotes an alkyl radical with 1 to 4 C atoms, which is optionally substituted by halogen atoms or a phenyl radical which is optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy andR' represents hydrogen, a phenyl radical which is optionally substituted by nitro, C.sub.1 -C.sub.4 alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy, the tetralin-6-yl radical or an aromatic heterocyclic radical which is bonded via C or N and which can contain further substituents, for example C.sub.1 -C.sub.4 -alkyl groups and halogen atomsAre valuable intermediates for the production of dyestuffs and optical brightening agents.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: January 17, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Carl Wolfgang Schellhammer, Florin Seng
  • Method and compositions for retarding chemical damage to hair with treating agents containing two or more polar groups
    Patent number: 4067345
    Abstract: The hair is protected from damage by chemical agents, e.g. in bleaching, by either pretreatment with, or concurrent use of a protective agent and the damaging chemical. The protective agents disclosed are organic compounds containing two or more polar groups, e.g. carboxyl groups, which are separated by at least 15 atoms the majority of which are carbon atoms and preferably containing a cyclic moiety of at least 5 atoms, e.g. the dimer of linoleic acid.
    Type: Grant
    Filed: June 15, 1970
    Date of Patent: January 10, 1978
    Assignee: Cincinnati Milacron Inc.
    Inventors: Ralph Kelly, Edmond Jean Ritter
  • Filaments and fibers having improved dyeability prepared from bis ethoxylated tetramethyl bisphenol A
    Patent number: 4067850
    Abstract: Filaments and fibers having improved dyeability comprising a terephthalic acid copolyester containing bis ethoxylated tetramethylbisphenol A in cocondensed form.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Armin Kohler, Herbert Pelousek, Ekkehard Frohberg
  • Process for the production of high-shrinkage wet-spun acrylic fibres or filaments
    Patent number: 4067948
    Abstract: The invention relates to a process for the production of high-shrinkage wet-spun acrylic fibres having good fibre strength and high densities by fixing the unstretched fibres with saturated steam and then stretching in a ratio of from 1:3,5 to 1:5.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: January 10, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Reinehr, Alfred Nogaj, Toni Herbertz
  • Dyeing dry-spun aromatic polyamides
    Patent number: 4066396
    Abstract: The invention relates to a process for the production of dyed filaments of aromatic polyamides which have not been modified with acid or basic group.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: January 3, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Dieter Wolf, Ralf Miessen, Hans Egon Kunzel, Francis Bentz
  • Process for preparation of linear polyamide-imides from aromatic tricarboxylic acid anhydrides and diamines
    Patent number: 4066631
    Abstract: Linear polyamide-imides having recurring units of the formula ##STR1## in which A is an aromatic radical;R and R' are araliphatic, aliphatic, or cycloaliphatic radicals; andR" is H, or an aliphatic, araliphatic, or cycloaliphatic radical; and a process for their preparation are disclosed.The process involves three steps (1) condensation of a diamine and an aromatic tricarboxylic acid anhydride to form an intermediate diimide-diacid; (2) converting the diimide-diacid to the diacid chloride, e.g. by reaction with SOCl.sub.2 ; and (3) reaction of the diacid chloride with further diamine to produce the amide linkages in the desired polyamide-imide. This method avoids a final step of imide formation by cyclodehydration, necessary in the prior art processes, which step causes some crosslinking undesirable in polymers intended for molding applications.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: January 3, 1978
    Assignee: Pennwalt Corporation
    Inventor: Daniel Ashton Dimmig
  • Reactive dyestuffs containing urea alkylene linkage between chromophore and reactive radical
    Patent number: 4065446
    Abstract: Dyestuffs are disclosed having the formula ##STR1## in which W is a reactive radical;D is the radical of an organic dyestuff;X.sub.1 is hydrogen or alkyl;X.sub.2 and X.sub.3 are hydrogen, alkyl, cycloalkyl, aralkyl or aryl; or X.sub.2 and X.sub.3 together are alkylene;Alkylene is C.sub.1 -C.sub.6 -alkylene or cycloalkylene; and n is 0 or 1.The dyestuffs are used in the dyeing of textile materials containing hydroxyl groups and nitrogen, especially natural and regenerated cellulose, wool, silk, synthetic polyamide fibers and synthetic polyurethane. The dyeings obtained are, in general, distinguished by good to very good fastness properties, especially by excellent wet fastness.
    Type: Grant
    Filed: March 24, 1972
    Date of Patent: December 27, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Samuel Bien, Wolfgang Harms
  • Process for making quinacridone and its derivatives
    Patent number: 4064129
    Abstract: A process is described for making quinarcridone and its derivatives, useful as organic pigments, wherein a 2,5-diarylaminoterephthalic acid and an acid catalyst are heated in a two phase liquid system, comprising ethylene glycol and an organic liquid which is immiscible with water and ethylene glycol, wherein the ethylene glycol is present in an amount of about 0.25 to 4 parts by weight per part of 2,5-diarylaminoterephthalic acid and the organic liquid is present in an amount of at least about 2 parts by weight per part of ethylene glycol, at a temperature sufficient to remove by-product water from the liquid system by vaporization.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: December 20, 1977
    Assignee: Harmon Colors Corporation
    Inventors: Herman Gerson, John Francis Santimauro, Lawrence Robert Lerner
  • Printing process assisted by alkanols of 5 to 8 carbon atoms, urea and mineral oil
    Patent number: 4062643
    Abstract: Process for printing cellulosic fibre materials with reactive dyestuffs and/or direct dyestuffs wherein are used emulsion printing pastes which contain, in addition to the dyestuffs and the alkalis required for fixing the reactive dyestuffsA. an alkali salt and/or ammonium salt of a C.sub.8 -C.sub.22 -carboxylic acid,B. an aliphatic C.sub.5 -C.sub.18 -alcohol,C. a largely straight-chain, liquid paraffin hydrocarbon,D. urea and optionallyE. an alkali salt and/or ammonium salt of a sulphonic acid.
    Type: Grant
    Filed: November 3, 1972
    Date of Patent: December 13, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunther Boehmke, Richard Schwaebel
  • Benzene-azo-indole dyestuffs
    Patent number: 4060521
    Abstract: Dyestuffs which in form of the free acid correspond to the formula ##STR1## wherein D represents the radical of an aromatic-carbocyclic diazo component, X represents OH, ##STR2## R.sub.1 and R.sub.2 represent hydrogen, alkyl, aryl, aralkyl, cycloalkyl or carbalkoxy, but either R.sub.1 or R.sub.2 must be hydrogen,R.sub.3 represents hydrogen or alkyl,R.sub.4 represents hydrogen, halogen, cyano, alkyl, alkoxy or a sulpho group,R.sub.5 represents alkyl or aryl,R.sub.6 represents hydrogen, acyl or a sulpho group,R.sub.7 represents alkyl, aryl or a dialkylamino group,R.sub.8 represents hydrogen or alkyl,n represents 1 or 2 andM represents 0, 1 or 2, with the proviso that the total number of acid groups per molecule is 1 or 2.Are suitable for the dyeing of natural and synthetic fibre materials, especially polyamide fibres.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: November 29, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter vor der Bruck, Richard Sommer, Gerhard Wolfrum
  • Spinnable solutions containing crosslinkable copolymers of acrylonitrile and N-methylol alkyl ether acrylamides
    Patent number: 4059556
    Abstract: The invention relates to a process for the production of crosslinkable polymers of acrylonitrile by polymerising acrylonitrile with a crosslinking component and optionally other comonomers in strongly polar organic solvents and in the presence of a peroxodisulphate and a 1,3-diketone as initiator system.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: November 22, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Theo Neukam, Ulrich Reinehr, Francis Bentz, Gunther Nischk
  • Process for dyeing wet-spun aromatic polyamides in gel form
    Patent number: 4059403
    Abstract: The invention relates to a process for the production of dyed filaments from aromatic polyamides which contain acid groups.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: November 22, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Dieter Wolf, Ralf Miessen, Hans Egon Kunzel, Francis Bentz