Patents by Inventor Horst Berneth
Horst Berneth 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).
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Patent number: 5208325Abstract: Cationic 1,3,4-thiadiazole dyestuff of the formula ##STR1##in whichR.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nitrogen atom, or being bound through a methylene or ethylene group, or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached form a heterocycle,R.sup.3 denotes alkyl, alkenyl or aralkyl,R.sup.4 denotes hydrogen or alkyl,R.sup.5 denotes acyl,R.sup.6 and R.sup.7, independently of one another, denote hydrogen, alkyl, alkoxy, aryloxy or halogen andR.sup.8 and R.sup.9, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nitrogen atom, or being bound through a methylene or ethylene group, or R.sup.8 and R.sup.9, together with the nitrogen atom to which they are attached form a heterocycle, orR.sup.6 and R.sup.8 together with the nitrogen to which R.sup.Type: GrantFiled: December 11, 1991Date of Patent: May 4, 1993Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Klaus Leverenz
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Patent number: 5178670Abstract: A color former for pressure- and heat-sensitive recording systems containinga) at least one 3,1-benzoxazine of the formula ##STR1## b) at least one fluoran of the formula ##STR2## c) at least one 3,1-benzoxazine of the formula ##STR3## and/or at least one lactone of the formula ##STR4## in which the substituents have the meanings given in the description, produces black colorations having good color intensity.Type: GrantFiled: March 25, 1991Date of Patent: January 12, 1993Assignee: Bayer AktiengesellschaftInventors: Gunther Klug, Horst Berneth, Gert Jabs
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Patent number: 5138070Abstract: Dyestuffs of the formula ##STR1## and their base derivatives, in which the radicals have the meaning given in the description, are outstandingly suitable for laser transfer printing or as optical recording materials.Type: GrantFiled: August 21, 1990Date of Patent: August 11, 1992Assignee: Bayer AktiengesellschaftInventor: Horst Berneth
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Patent number: 5118814Abstract: Tetraindolyl-heptamethine derivatives of the isomeric formulae ##STR1## in which A, B, D and E denote ##STR2## and may be identical to or different from one another, and the other symbols have the meaning indicated in the description, are used in pressure-sensitive and heat-sensitive recording materials.Type: GrantFiled: September 28, 1989Date of Patent: June 2, 1992Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Hubertus Psaar, Gunter Klug
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Patent number: 5092925Abstract: The invention relates to mixtures of a) at least one 3,1-benzoxazine of the formula ##STR1## and b) at least one fluorane of the formula ##STR2## wherein the radicals of the abovementioned formulae have the meaning given in the description, and their use as color-forming agents for pressure- and heat-sensitive recording materials and to such recording materials.Type: GrantFiled: December 6, 1989Date of Patent: March 3, 1992Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Gunter Klug, Gert Jabs
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Patent number: 5024987Abstract: Pressure-sensitive reactive recording material containinga) as the color-forming agent, a tetraindolylheptamethine ether or alcohol of the formulae I/1, I/2, I/3 or I/4 ##STR1## b) and, as the color developer, the salt of a polyvalent metal and an aromatic carboxylic acid having at least 10 carbon atoms, of the formula (II) ##STR2## wherein A, B, D and E denote ##STR3## and the other radicals have the meanings given in the description, produces light-stable copies which can also be read by machines (OCR).Type: GrantFiled: November 17, 1989Date of Patent: June 18, 1991Assignee: Bayer AktiengesellschaftInventors: Gunter Klug, Gert Jabs, Horst Berneth, Artur Botta
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Patent number: 5017707Abstract: Tetraindolylheptamethine ethers and alcohols of the isomeric formulae ##STR1## and ##STR2## and dyestuffs of the formula ##STR3## in which A, B, D and E denote ##STR4## and D'.sup..sym. denotes ##STR5## and the remaining symbols have the meanings given in the description, are used in pressure- and heat-sensitive recording materials.Type: GrantFiled: October 24, 1988Date of Patent: May 21, 1991Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Hubert Psaar, Gert Jabs
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Patent number: 5013857Abstract: Process for the preparation of sulpho-free triphenylmethane dyestuffs of the formula ##STR1## in which R.sup.1 -R.sup.3 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, or halogen, preferably chlorine,Y denotes hydrogen or NX.sup.5 X.sup.6,X.sup.1 -X.sup.6 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, ethyl, benzyl or phenyl andZ.sup.Type: GrantFiled: December 11, 1989Date of Patent: May 7, 1991Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Roderich Raue
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Patent number: 4968797Abstract: 4,4-diaryldihydroquinazolones of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently of one another, denote hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, heteryl, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3, at least one of the radicalsX.sup.1, X.sup.2 or X.sup.3 standing for NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring C,R.sup.2 denotes a radical of an acid,Y.sup.1, Y.sup.2 and Y.sup.3, independently of one another, denote hydrogen, alkyl, cycloalkyl, aralkyl aryl or heteryl or the remaining members of a 5- or 6-membered ring which reaches to one of the o-position benzene C atoms and may contain further hetero atoms orY.sup.1 +Y.sup.Type: GrantFiled: October 30, 1987Date of Patent: November 6, 1990Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Alfred Brack, Karlheinrich Meisel
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Patent number: 4931567Abstract: Bis(indolyl)ethylenes of the formula ##STR1## wherein R.sub.1 denotes hydrogen, alkyl, aralkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 denotes hydrogen, alkyl, alkenyl, COOH or aryl andR.sub.4 denotes hydrogen, alkyl, alkoxy, cycloalkoxy or halogen, andthese substituents, in turn, can carry non-ionic radicals or a carboxyl group, are obtained by reaction of indoles of the formula ##STR2## with carboxylic acids of the formulaR.sub.3 --CH.sub.2 --COOH (III)their chlorides, esters, for example alkyl esters, or anhydrides in the presence of phosphorus oxychloride.Type: GrantFiled: September 19, 1989Date of Patent: June 5, 1990Assignee: Bayer AktiengesellschaftInventors: Hubertus Psaar, Horst Berneth
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Patent number: 4904637Abstract: Compounds of the formula ##STR1## wherein Z.sup.1 denotes hydrogen, alkyl, cycloalkyl or ##STR2## R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl, heteroalkyl or heteryl,X.sup.1, X.sup.2 and X.sup.3 denote hydrogen, halogen, alkyl, cycloalkyl, aryl, alkanoylamino, aroylamino or heteryl, and at least one of these radicals denotes NH.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,Y.sup.1, Y.sup.2 and Y.sup.3 denote hydrogen, alkyl, cycloalkyl, aralkyl, aryl or heteryl andY.sup.1 +Y.sup.2 denote the remaining members of a 5-membered or 6-membered ring which optionally contains further hetero-atoms,are outstanding suitable as color-forming agents for pressure-sensitive, heat-sensitive and electrosensitive recording materials with an acid developer. Deep copies which are fast to light are obtained.Type: GrantFiled: February 14, 1989Date of Patent: February 27, 1990Assignee: Bayer AktiengesellschaftInventor: Horst Berneth
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Patent number: 4897494Abstract: Bis(indolyl)ethylenes of the formula ##STR1## wherein R.sub.1 denotes hydrogen, alkyl, aralkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 denotes hydrogen, alkyl, alkenyl, COOH or aryl andR.sub.4 denotes hydrogen, alkyl, alkoxy, cycloalkoxy or halogen, andthese substituents, in turn, can carry non-ionic radicals or a carboxyl group,are obtained by reaction of indoles of the formula ##STR2## with carboxylic acids of the formulaR.sub.3 --CH.sub.2 --COOH (III)their chlorides, esters, for example alkyl esters, or anhydrides in the presence of phosphorus oxychloride.Type: GrantFiled: October 24, 1988Date of Patent: January 30, 1990Assignee: Bayer AktiengesellschaftInventors: Hubertus Psaar, Horst Berneth
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Patent number: 4849306Abstract: Dry toners for developing latent electrostatic images in electrostatic recording and printing methods contain, as charge-control substance, a pigment of the formulaF.sup.+ A.sup.- (I)in whichF represent a cationic radical of a methine dyestuff andA.sup.- represents an anion of a heteropolyacid based on tungsten and/or molybdenum with phosphorus, silicon, vanadium, cobalt, aluminum, manganese, chromium and/or nickel or a copper(I) hexacyanoferrate anion.Type: GrantFiled: February 22, 1988Date of Patent: July 18, 1989Assignee: Bayer AktiengesellschaftInventors: Roderich Raue, Hubertus Psaar, Horst Berneth
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Patent number: 4835270Abstract: Compounds of the formula ##STR1## wherein Z.sup.1 denotes hydrogen, alkyl, cycloalkyl or ##STR2## R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl, heteroalkyl or heteryl,X.sup.1, X.sup.2 and X.sup.3 denote hydrogen, halogen, alkyl, cycloalkyl, aryl, alkanoylamino, aroylamino or heteryl, and at least one of these radicals denotes NH.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,Y.sup.1, Y.sup.2 and Y.sup.3 denote hydrogen, alkyl, cycloalkyl, aralkyl, aryl or heteryl andY.sup.1 +Y.sup.2 denote the remaining members of a 5-membered or 6-membered ring which optionally contains further hetero-atoms,are outstandingly suitable as colour-forming agents for pressure-sensitive, heat-sensitive and electrosensitive recording materials with an acid developer. Deep copies which are fast to light are obtained.Type: GrantFiled: December 18, 1988Date of Patent: May 30, 1989Assignee: Bayer AktiengesellschaftInventor: Horst Berneth
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Patent number: 4831141Abstract: The invention relates to chromogenic 3,1-benzoxazines of the formula ##STR1## wherein X.sup.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, chlorine or OY.sup.1,X.sup.2 denotes NY.sup.2 Y.sup.3,X.sup.3 denotes OY.sup.4 or NY.sup.5 Y.sup.6,R.sup.1 -R.sup.3 independently of one another denote hydrogen, C.sub.1 -C.sub.4 -alkyl, chlorine, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -mono- or -dialkylamino, orR.sup.1 together with Y.sup.2,R.sup.2 or R.sup.3 together with Y.sup.4 or Y.sup.5, orR.sup.2 and R.sup.3 simultaneously with Y.sup.5 and Y.sup.6 denote a 2 to 4-membered bridge which can contain one oxygen atom or one nitrogen atom and can carry up to 4 methyl groups, and whereinR.sup.1 and R.sup.3 simultaneously represent hydrogen only if R.sup.2 with Y.sup.4 or Y.sup.5 forms one of the abovementioned bridges,R.sup.4 denotes hydrogen, methyl or chlorine,Y.sup.1 and Y.sup.4 independently of one another denote C.sub.1 -C.sub.4 -alkyl, cyclohexyl or benzyl and Y.sup.2, Y.sup.3, Y.sup.5 and Y.sup.Type: GrantFiled: June 1, 1987Date of Patent: May 16, 1989Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Gert Jabs
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Patent number: 4754034Abstract: 4,4-diaryldihydroquinazolones of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently of one another, denote hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, heteryl, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3, at least one of the radicals X.sup.1, X.sup.2 or X.sup.3 standing for NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring C,R.sup.2 denotes a radical of an acid,Y.sup.1, Y.sup.2 and Y.sup.3, independently of one another, denote hydrogen, alkyl, cycloalkyl, aralkyl aryl or heteryl or the remaining members of a 5- or 6-membered ring which reaches to one of the o-position benzene C atoms and may contain further hetero atoms orY.sup.1 +Y.sup.Type: GrantFiled: October 21, 1985Date of Patent: June 28, 1988Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Alfred Brack, Karlheinrich Meisel
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Patent number: 4727140Abstract: 4,4-Diaryl-2-oxobenzo-3,1-oxazines of the general formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3, independently of one another, denote hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, heteryl, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,at least one of the radicals X.sup.1, X.sup.2 or X.sup.3 standing for NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring B,Y.sup.1, Y.sup.2 and Y.sup.3, independently of one another, denote hydrogen, alkyl, cycloalkyl, aralkyl or aryl or the remaining members of a 5- or 6-membered ring which reaches to one of the o-position benzene C atoms and may contain further heteroatoms or Y.sup.1 +Y.sup.Type: GrantFiled: October 21, 1985Date of Patent: February 23, 1988Assignee: Bayer AktiengesellschaftInventors: Karlheinrich Meisel, Horst Berneth
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Patent number: 4695633Abstract: Chromogenic 4,4-diaryl-dihydroquinazolones of the formula ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 independently of one another represent hydrogen, halogen, alkyl, aryl, alkanoylamino, aroylamino, NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,and whereinat least one of the radicals X.sup.1, X.sup.2 or X.sup.3 represents NY.sup.1 Y.sup.2, OY.sup.3 or SY.sup.3,R.sup.1 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl or the members of a bridge to the o-carbon of ring C,R.sup.2 denotes hydrogen, alkyl, cycloalkyl, aralkyl, aryl, hetaralkyl or hetaryl,Y.sup.1, Y.sup.2 and Y.sup.3 independently of one another denote hydrogen, alkyl, cycloalkyl, aralkyl or aryl or the remaining members of a 5-membered or 6-membered ring which reaches to one of the benzene-C atoms in the o-position and optionally contains further hetero-atoms, orY.sup.1 +Y.sup.Type: GrantFiled: May 17, 1985Date of Patent: September 22, 1987Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Alfred Brack
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Patent number: 4426530Abstract: Optical brighteners of the formula ##STR1## wherein B denotes a direct bond or the 1,4-phenylene radical andR.sub.1 and R.sub.2 independently of one another denote hydrogen, optionally substituted alkyl, aralkyl, cycloalkyl or aryl, or together form a fused aromatic ring,or the quaternisation products and protonation products thereof, are outstandingly suitable for the white tinting of polyester fibres or acrylic fibres. They are distinguished by a good build-up capacity and a small tendency to develop a green tone.Type: GrantFiled: December 30, 1981Date of Patent: January 17, 1984Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Roderich Raue