Patents by Inventor Heinz Eilingsfeld

Heinz Eilingsfeld has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4340537
    Abstract: Dyes of the thiazole series, having the general formula I ##STR1## where D is the radical of an aromatic diazo component,R is a heterocyclic radical andR.sup.1 and R.sup.2 are hydrogen or unsubstituted or substituted hydrocarbon radicals, which may also together form a ring, which may or may not be heterocyclic.The dyes according to the invention are particularly suitable for dyeing synthetic polyesters.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: July 20, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Guenter Hansen, Guenther Seybold
  • Patent number: 4327019
    Abstract: Acid monoazo dyes of the formula ##STR1## in which X is hydrogen, chloro, bromo, nitro, C.sub.1 to C.sub.4 alkyl, methoxy, ethoxy or C.sub.2 to C.sub.4 alkanoylamino and K is a radical of a coupling compound as defined below. The dyes are suitable for dyeing natural or synthetic polyamides giving colorations with very good fastness properties.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: April 27, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Guenter Hansen, Guenther Seybold, Georg Zeidler
  • Patent number: 4278606
    Abstract: In a process for the preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone by reacting 1-amino-2-halogeno-4-hydroxyanthraquinone with a phenol in an alkaline aqueous medium at an elevated temperature, the improvement that 1-amino-2-chloro-4-hydroxyanthraquinone is reacted in aqueous suspension, at a pH of from 9 to 13 and at from 120.degree. to 150.degree. C., with the phenol in the presence of(a) ammonium salts N.sup..sym. (R).sub.4 A.sup..crclbar., wherein one or more R's are linear or branched C.sub.4 -C.sub.20 -alkyl or C.sub.7 -C.sub.10 -phenylalkyl and the remaining R or R's may also be phenyl or N.sup..sym. (R).sub.3 may be pyridinium, and A.sup..crclbar. is one equivalent of an anion, of(b) ethylene oxide/propylene oxide block copolymers or of(c) oxyethylation products of alkylphenols, of alkenylamines, of alkylamines or of alkanols. A very pure product is obtained, in high yield.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: July 14, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Hiller, Heinz Eilingsfeld, Helmut Reinicke, Fritz Traub
  • Patent number: 4250090
    Abstract: Acid azo dyes containing thiazole coupling components, of the general formula ##STR1## where D is the radical of a diazo component,R is hydrogen, acetyl, benzoyl or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical,R.sup.1 and R.sup.2 independently of one another are optionally substituted alkyl, cycloalkyl, aralkyl or aryl,R.sup.1 may also be hydrogen andR.sup.1 and R.sup.2 together with the nitrogen may be a heterocyclic radical, andthe radicals D, R, R.sup.1 and/or R.sup.2 may in total contain from 1 to 4 --SO.sub.3 H groups.The deeply colored novel compounds are particularly suitable for dyeing polyamides, and the dyeings obtained have very good lightfastness and wetfastness.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: February 10, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Guenter Hansen, Guenther Seybold, Georg Zeidler
  • Patent number: 4239894
    Abstract: An organic compound of the general formula ##STR1## where R.sup.1 and R.sup.2 are cyano, formyl, substituted or unsubstituted alkanoyl or aroyl, a carboxylic acid ester group, substituted or unsubstituted carbamoyl or sulfamoyl, alkylsulfonyl, arylsulfonyl or alkylsulfinyl, orR.sup.1 and R.sup.2 together may be a cyclic radical,R.sup.2 may also be alkyl, aryl or hetaryl,R.sup.3 is hydrogen, substituted or unsubstituted alkyl, aryl or hetaryl,X is CH, CR.sup.5 or N,R.sup.4 is a radical of the formula ##STR2## R.sup.5 to R.sup.10 are substituents conventionally present in dyes. The compounds may be used as dyes for synthetic and natural fibers and give very fast dyeings.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: December 16, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Seybold, Heinz Eilingsfeld
  • Patent number: 4207233
    Abstract: Azo dyes of the formula ##STR1## where A is a radical of a diazo component, B is a radical of a coupling component and R is hydrogen, halogen, a substituted or unsubstituted hydrocarbon radical, substituted or unsubstituted alkoxy or aroxy, or substituted amino. The dyes are eminently suitable for dyeing polyester and particularly for cellulose and blends of cellulose with polyesters.
    Type: Grant
    Filed: August 24, 1977
    Date of Patent: June 10, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Seybold, Heinz Eilingsfeld
  • Patent number: 4198205
    Abstract: Dye formulations for dyeing or printing cellulose or cellulosic fibrous material which in addition to the usual dispersing agents, water retention agents, disinfectants and water contain dyes devoid of sulfonic acid groups and of the general formula: ##STR1## in which A is an anthraquinonyl, anthrapyrimidone or anthrapyrimidine radical which may bear substituents; X is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical; B is hydrogen or an aliphatic radical; B.sup.1 is an aliphatic, araliphatic or aromatic radical or the group ##STR2## is a five-membered, six-membered or seven-membered heterocyclic ring; and n is 1 or 2. Dyeings and prints having very good fastness properties and particularly very good fastness to wet treatments and crocking are obtained on cellulose. The dyes contained in the formulations are fixed on swollen cellulosic fibers by heating.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: April 15, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Elser, Heinz Eilingsfeld, Guenter Meyer
  • Patent number: 4153607
    Abstract: 4,5-Disubstituted thiazoles are manufactured by reacting 4-amino-5-cyano-thiazoles with hydrogen sulfide in the presence of basic compounds, followed by dehydrogenating cyclization. The new 3-amino-thiazolo-(4,5-c)-isothiazoles I, 4-amino-5-thiocarbamidothiazoles III and 4,5-disubstituted thiazoles IV obtainable by the process of the invention are valuable intermediates for the manufacture of azo dyes and of crop protection agents.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: May 8, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Guenther Seybold
  • Patent number: 4117019
    Abstract: A process for the manufacture of o-benzyltoluenes by reaction of o-xylyl halides with benzenes in the presence of sulfuric acid or in the presence of phosphoric acid and adjuvants or in the presence of sulfuric acid and adjuvants. The products are starting materials for the manufacture of anthracene and anthraquinone and their derivatives.
    Type: Grant
    Filed: February 14, 1975
    Date of Patent: September 26, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Manfred Patsch, Karl-Gerhard Baur, Wolfgang Ruehenbeck
  • Patent number: 4053488
    Abstract: A process for separating 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone by heating a dinitroanthraquinone mixture, in a mixture of from 5 to 85 per cent by weight of N-methylpyrrolidone and from 95 to 15 per cent by weight of an organic liquid which boils at from 80.degree. to 210.degree. C and is miscible in all proportions with N-methylpyrrolidone, at from 60.degree. to 180.degree. C, and separating off the undissolved material, at the extraction temperature, after the solution equilibrium has been reached. The insoluble material contains more than 85 per cent by weight, and as a rule more than 90 per cent by weight, of 1,5-dinitroanthraquinone. From the extract, it is possible to isolate the dissolved 1,8-dinitroanthraquinone together with the dissolved 1,5-dinitroanthraquinone and any byproducts which may be present.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: October 11, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Hilmar Bruenemann, Heinz Eilingsfeld, Dietrich Lach
  • Patent number: 4045456
    Abstract: Anthraquinones are manufactured by cyclizing o-benzoylbenzoic acids in the presence of oxygen-containing compounds of aluminum and silicon at elevated temperatures. The products are starting materials for the manufacture of dyes.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: August 30, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Theodor Jacobsen, Heinz Eilingsfeld, Ernest Miesen, Gerhard Nestler
  • Patent number: 4042604
    Abstract: A process for the isolation of mixtures of 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone which have a high content of .alpha.,.alpha.'-dinitroanthraquinones by heating a suspension of the crude dinitroanthraquinone mixture in certain organic liquids at from 60.degree. to 200.degree. C until solution equilibrium has been set up, and separating the undissolved material from the solution. The undissolved material contains more than 90% and as a rule more than 95% by weight of 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone. The pure mixture of 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone may be used for the manufacture of dyes.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: August 16, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Dietrich Lach
  • Patent number: 4015062
    Abstract: Polymers in which the side chains contain 1,3,4-dioxazol-2-one groups, and the manufacture of said polymers. The novel polymers have the reactivity of 1,3,4-dioxazol-2-one and may also contain other reactive groups. They may be used for the production of shaped articles, coatings and adhesives.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: March 29, 1977
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Herbert Naarmann
  • Patent number: 4002653
    Abstract: Anthraquinone is manufactured by oxidation of diphenylmethane compounds in the gas phase, in the presence of vanadium(V) oxide and titanium dioxide in a specific weight ratio. The anthraquinone which may be manufactured by the process of the invention is a valuable starting material for the manufacture of dyes and pesticides.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: January 11, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Reuter, Heinz Eilingsfeld, Manfred Patsch
  • Patent number: 4001335
    Abstract: The production of 3-monochloro and 3,6-dichloro derivatives of 2,4,5-trialkylbenzophenones by reaction of 2,4,5-trialkylbenzophenones with chlorine, and the new 3-monochloro-2,4,5-trialkylbenzophenones and 3,6-dichloro-2,4,5-trialkylbenzophenones themselves. The products are starting materials for the production of dyes and pesticides.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: January 4, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Schaffner, Heinz Eilingsfeld, Ernst Schefczik, Manfred Patsch
  • Patent number: 3998894
    Abstract: Manufacture of 1-alkyl-3-(monohalogeno)-phenylindans and dihalogeno-1-methyl-3-phenylindans by reaction of halogenostyrene and styrene in the presence of phosphoric acid of a certain concentration, or by reaction of halogenostyrenes in the presence of phosphoric acid of a certain concentration and of organic compounds irradiated with light of 2,000 to 8,000 A and capable of absorbing the said light, and the new dihalogeno-1-methyl-3-phenylindans and 1-methyl-3-(monohalogeno)-phenylindans. The products are starting materials for the manufacture of dyes and pesticides.
    Type: Grant
    Filed: November 15, 1973
    Date of Patent: December 21, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Karl Gerhard Baur, Manfred Patsch, Rolf Platz, Hans-Georg Schecker, Martin Fischer
  • Patent number: 3978096
    Abstract: 1-Chloroanthraquinone is produced by decarboxylation of 4-chloroanthraquinone-1-carboxylic acid in the presence of a carboxamide. The product is a starting material for the production of dyes, pest control agents and pigments.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: August 31, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Manfred Patsch
  • Patent number: 3978144
    Abstract: The manufacture of o-benzyltoluenes by reaction of o-xylyl halides with benzenes in the presence of boron trifluoride or its derivatives, and new o-benzyltoluenes. The new and known o-benzyltoluenes I manufactured by the process of the invention are starting materials for the manufacture of anthracene and anthraquinone and their derivatives.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: August 31, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Eilingsfeld, Manfred Patsch
  • Patent number: 3956326
    Abstract: 3-AMINOISOTHIAZOLO[3,4-D]PYRIMIDINES OF THE FORMULA: ##EQU1## wherein R.sup.1 is a substituent; andR.sup.2 is hydrogen or methyl. The compounds are valuable diazo components for the production of azo dyes.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: May 11, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Niess, Heinz Eilingsfeld
  • Patent number: 3933917
    Abstract: The production of anthraquinone-1-carboxylic acid by reacting a benzoyl halide with a tert.-butylxylene in the presence of ferric chloride, adding aluminum chloride, oxidizing the dimethylbenzophenone formed and cyclizing the resulting benzophenonedicarboxylic acid. The product is a starting material for the production of dyes and pesticides.
    Type: Grant
    Filed: August 29, 1973
    Date of Patent: January 20, 1976
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Ernst Schaffner, Heinz Eilingsfeld, Manfred Patsch