Patents Represented by Law Firm Plumley and Tyner
  • Patent number: 4166822
    Abstract: Use of the dyestuffs of the formula ##STR1## wherein R, Y and X have the meaning given in the description, for the dyeing of synthetic textiles, especially those of aromatic polyesters, by the transfer printing process.Prints obtained are distinguished by good fastness in use properties.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: September 4, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Hohmann, Werner Kuhnel
  • Patent number: 4163078
    Abstract: The invention relates to a bi-component filament or fibre of a fibre-forming synthetic polymer having a core/sheath structure in at least one component and having a moisture absorption of at least 1.5% at 65% relative atmospheric humidity and at a temperature of 21.degree. C. and a moisture absorption of at least 5% at 90% relative atmospheric humidity and 21.degree. C. and a water-retention-power of at least 10% as well as to a process for the production thereof.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: July 31, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Reinehr, Christian Pieper, Peter Kleinschmidt
  • Patent number: 4163013
    Abstract: Disperse dyestuffs of the formula ##STR1## wherein Z represents an optionally substituted hydrocarbon radical,The azo group is in the meta-position or para-position relative to the amino group of the disphenylamine and the radical --OSO.sub.2 Z is in the ortho-position or para-position relative to the azo group.The rings A, B and D can be further substituted.The dyestuffs are suitable for dyeing synthetic fibre materials, especially polyesters, which are dyed in yellow to orange-red shades of good tinctorial strength and with good fastness properties in use, such as, for example, fastness to light and wet processing.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: July 31, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Hugl, Karl H. Schundehutte, Kersten Trautner, Gerhard Wolfrum
  • Patent number: 4161593
    Abstract: Process for the preparation of triazines containing a mixture of chlorine and fluorine substituents, characterized in that cyanuric chloride is heated with cyanuric fluoride to temperatures from 30.degree.-300.degree. C. in the presence of suitable catalysts.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: July 17, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erich Klauke, Ernst Kysela, Alfons Dorlars
  • Patent number: 4157616
    Abstract: A hand tool of the kind comprising a pointed edge or blade, and a cover protecting the latter in the non-operative position thereof but intended to be swung away to expose the point in the operative position of the tool. Means are arranged to lock the cover to prevent it from being inadvertently moved to the point-exposing position but to allow the cover to be swung away readily to expose the point by using one hand only, when the point is to be used.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: June 12, 1979
    Inventor: Karl G. Lundqvist
  • Patent number: 4153608
    Abstract: Anthraquinone dyestuffs of the general formula ##STR1## wherein IN EACH OF THE TWO ANTHRAQUINONE RADICALS SUBSTITUTED BY X, one X denotes chlorine and the other denotes hydrogen andR represents hydrogen or an optionally substituted benzoylamino group,And mixtures of the dyestuffs, in which the constituents of the mixture are 6-chloroanthraquinone and 7-chloroanthraquinone derivatives are suitable as a vat dyestuff for the dyeing of cotton in strong brown color shades with excellent fastness to light and vat processing.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: May 8, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Hohmann, Detlef-Ingo Schutze
  • Patent number: 4153775
    Abstract: Process for the production of solutions of segmented self-crosslinkable polyurethanes by incorporating in the polymer chain segments of the general formulaM--CO--NH--D'--NH--CO--A,wherein D' is the divalent residue of an organic diisocyanate; M is a diol containing residue derived by reaction of the active N-hydrogen of an aminodiol or a hydrazinodiol which contains a primary or secondary amino group, with an isocyanate group; and A is an isocyanate masking group.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: May 8, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans D. Winkelmann, Karlheinz Wolf, Harald Oertel, Norbert Weimann
  • Patent number: 4153596
    Abstract: This invention relates to permanently stabilized polymers containing substituted piperidine derivatives chemically attached to the polymer molecule through O- or N-atoms. Compounds based on 2,2,6,6-tetraalkyl piperidines have now been found which, on the one hand, have a very high stabilizing activity and, on the other hand, contain one or more reactive groups through which they are able to react with the polymers to be stabilized. Stabilized polymers, preferably polyurethane elastomer filaments, films and coatings with a permanent washing-resistant, boiling resistant, acid-resistant, dry-cleaning-resistant and solvent-resistant stabilization based on 2,2,6,6-tetraalkyl piperidine light stabilizers are thus obtained.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: May 8, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Oertel, Paul Uhrhan, Reinhard Lantzsch, Ernst Roos, Dieter Arlt, Hans Schroer
  • Patent number: 4152330
    Abstract: Naphthostyril is obtained in high space/time yields by reacting 1-naphthyl isocyanate with an anhydrous aluminium halide in an inert solvent, carrying out the reaction in a homogeneous solution using 700-1.800 ml of solvent per mol of 1-naphthyl isocyanate in the temperature range from 140.degree.-160.degree. C. and -- after hydrolysis of the reaction mixture -- separating the phases. Naphthostyril is an intermediate for preparation of dyestuffs.
    Type: Grant
    Filed: August 5, 1977
    Date of Patent: May 1, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventor: Horst Harnisch
  • Patent number: 4149849
    Abstract: A process for printing and dyeing textile materials consists in treating in the absence of alkali, with an epoxide of the general formula ##STR1## IN WHICH Y represents a member for the completion of a 5-membered to 7-membered ring,R.sub.1 represnts a C.sub.1 -C.sub.4 -alkyl group or a C.sub.2 -C.sub.4 -alkyl group which is substituted by an OH group, preferably the methyl group,R.sub.2 represents hydrogen or methyl,X.sup.n(-) represents an anion andN represents 1, 2 or 3, and, after the latter has been fixed, in dyeing with an anionic dyestuff by known methods.
    Type: Grant
    Filed: November 22, 1977
    Date of Patent: April 17, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Robert Koch, Otto Berenstecher, Horst Renziehausen, Heinz Gutjahr
  • Patent number: 4149366
    Abstract: Threading procedure in the texturing method for endless filaments in false-twist texturing machines comprising disc-type twisters.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: April 17, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Bass, Joachim Fogger, Udo Hansel
  • Patent number: 4147865
    Abstract: The invention relates to compounds of the formula ##STR1## WHEREIN Z denotes OH or NR.sup.1 R.sup.2,R.sup.1 denotes hydrogen, alkyl, aralkyl, cycloalkyl or aryl,R.sup.2 denotes hydrogen or alkyl or, conjointly with R.sup.1, forms an alkylene chain.The dyestuffs are outstanding suitable for the dyeing of polyester fibres. The yellow and reddish dyeings are distinguished by good fastness to light.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: April 3, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Harnisch, Alfred Brack
  • Patent number: 4146363
    Abstract: The dyestuff of the formula ##STR1## is suitable for dyeing synthetic polyamide textile materials, in particular for combination dyeings because of its favorable uptake properties.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: March 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Harms, Hans-Gunter Otten
  • Patent number: 4145870
    Abstract: The invention is related to a process for the production of staple-fibre-like textured continuous filament yarns by interlacing and false-twisting, wherein a partly drawn filament is heat-treated before the texturing process, this filament is subsequently interlaced with a non shrunken filament and both are finally subjected to draw texturing.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: March 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf J. Klee, Gerd Arenz, Herbert Scherzberg
  • Patent number: 4146674
    Abstract: A fiber filling of polyester fibres with greatly improved serviceability properties comprising a combination of fiber properties, namely denier range, staple length and number of crimp arcs, a specific polysiloxane brightening and an antistatic agent.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: March 27, 1979
    Assignees: Bayer Aktiengesellschaft, Faserwerke Huls Gesellschaft mit beschrankter Haftung
    Inventors: Manfred Salamon, Hans J. Hagebaum, Herbert Pelousek, Klaus-Jurgen Schreiber, Robert Boeck
  • Patent number: 4145520
    Abstract: The invention relates to a process for the continuous polymerization of caprolactam in a reactor, wherein a reactor in which the first 60% of the reactor volume is equipped if possible completely but at least to one-third with static mixing installations is used.
    Type: Grant
    Filed: September 15, 1977
    Date of Patent: March 20, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karlheinz Feltgen, Hans J. Kaluza, Edgar Muschelknautz, Hans J. Simon
  • Patent number: 4145537
    Abstract: Dyestuffs of the formula ##STR1## IN WHICH R denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy, aralkoxy, aryloxy, alkylamino, aralkylamino, arylamino, acylamino, carboxylic acid ester, carbonamido, acyl, halogen or nitrile,R.sub.1 denotes hydrogen, alkyl or aralkyl,R.sub.2 denotes hydrogen, alkyl, alkenyl, carbonamide or nitrile,R.sub.3 denotes alkyl, alkenyl or aralkyl,R.sub.4 denotes hydrogen, alkyl, alkenyl, aralkyl, alkoxy or aralkoxy, alkylamino, aralkylamino, acylamino, carbonamido, nitrile, nitro or halogen,R.sub.5 and R.sub.6 denote hydrogen, alkyl, aralkyl or a cycloaliphatic 5-membered or 6-membered ring, or R.sub.6 together with R.sub.1 forms a hydroaromatic 6-membered ring andAn.sup.(-) represents an anion, andProcesses for their preparation and their use for dyeing and printing natural and synthetic materials.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: March 20, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hubertus Psaar, Roderich Raue
  • Patent number: 4145342
    Abstract: Disperse dyestuffs of the formula ##STR1## wherein Q.sub.1 and Q.sub.2 are hydrogen or the group V-(A-O).sub.n Z, but do not at the same time represent hydrogen,A -- denotes an alkylene group,V -- denotes a direct bond or a bridge member,Z -- denotes hydrogen, alkyl, aryl, aralkyl or acyl andN -- denotes an integer from 2-10 and the rings A, B and D can be further substituted.The dyestuffs are suitable for dyeing polyester fibres from an aqueous liquor by the exhaustion process since they are distinguished by a good affinity and build-up power. The dyeings are very clear and display good general fastness properties, such as fastness to light, sublimation and measuring.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: March 20, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kersten Trautner, Karl H. Schundehutte
  • Patent number: 4145500
    Abstract: The invention relates to a process for the production of a stabilized crosslinkable copolymer of acrylonitrile which comprises copolymerizing at least 65% by weight of acrylonitrile with from 0.1 to 3% by weight of an N-methylol acyl ester of an ethylenically unsaturated carboxylic acid amide, optionally from 0.5 to 5% by weight of an N-methylol alkyl ether of an ethylenically unsaturated carboxylic acid amide and, optionally, at least one other copolymerizable comonomer in an aqueous medium in the presence of a redox catalyst and in the presence of at least one water-soluble compound containing a carboxylic acid amide group.
    Type: Grant
    Filed: July 26, 1977
    Date of Patent: March 20, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Theo Neukam, Frank Druschke, Francis Bentz, Gunther Nischk
  • Patent number: 4145512
    Abstract: According to the invention there are obtained modified polyurethanes which have a durable, wash-fast, acid-resistant, cleaning-resistant and solvent-resistant stabilization on the basis of 2,2,6,6-tetraalkyl-piperidine light protective agents. The stabilizers are integral constituents of the polyurethanes, that is to say they are built into the polyurethane chain by a chain lengthening reaction in which two H-active reactive groups (preferably from the series of primary or secondary amino groups, carboxylic acid hydrazide, carbazic ester or semicarbazide groups) of a 2,2,6,6-tetraalkyl piperidine derivative react with isocyanate groups of polyisocyanates or isocyanate prepolymers, optionally in the presence of the usual chain lengthening agents.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: March 20, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Uhrhan, Harald Oertel, Reinhard Lantzsch, Ernst Roos, Dieter Arlt