Patents by Inventor Volker Bach
Volker Bach 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: 5393308Abstract: There are described dye mixtures containinga) an azo dye of the formula I ##STR1## where Hal is chlorine or bromine, b) the azo dye of the formula II ##STR2## where L is allyl or optionally hydrogen, and c) an azo dye of the formula III and/or IV ##STR3## where R.sup.1 is nitro or substituted or unsubstituted C.sub.1 -C.sub.4 -alkylsulfonyl,R.sup.2 and R.sup.3 are each hydrogen, chlorine or bromine,R.sup.4 and R.sup.5 are each hydrogen or chlorine,R.sup.6 and R.sup.7 are each hydrogen, phenyl or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,X.sup.1 is hydrogen, hydroxyl, methoxy, acetylamino or nitro,X.sup.2, X.sup.3, X.sup.4 and X.sup.5 are each hydrogen, methyl or methoxy, andX.sup.6 is hydroxyl, 2-hydroxyethoxy, formyl or methoxycarbonylamino,dye preparations containing the novel dye mixtures, and the use of the novel dye mixtures for dyeing or printing polyesters in textile form.Type: GrantFiled: September 24, 1993Date of Patent: February 28, 1995Assignee: BASF AktiengesellschaftInventors: Arno Lange, Volker Bach, Clemens Grund, Helmut Reichelt, Paul Richter
-
Patent number: 5384402Abstract: Methine transfer dyes have the formula ##STR1## where L is a bridge member which does not permit any conjugation of .pi.-electrons between Z and Y,X is cyano, C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.6 -monoalkylcarbamoyl, wherein alkyl may in each case be interrupted by oxygen atoms, or is C.sub.5 -C.sub.7 -cycloalkoxycarbonyl, C.sub.5 -C.sub.7 -monocycloalkylcarbamoyl, phenoxycarbonyl or monophenylcarbamoyl, andY and Z are each independently of the other aminophenylene, which may be benzo-fused, or heterocyclyl.Type: GrantFiled: June 7, 1994Date of Patent: January 24, 1995Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5376150Abstract: There are described the use of pyridine dyes of the formula ##STR1## where R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl, substituted or unsubstituted phenyl or hydroxyl,R.sup.2 is a carbocyclic or heterocyclic radical,R.sup.3 is cyano, carbamoyl, carboxyl or C.sub.1 -C.sub.4 -alkoxy carbonyl,R.sup.4 is oxygen or the radical of an acidic CH compound,R.sup.5 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.6 is substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl, substituted or unsubstituted phenyl, hydroxyl or substituted or unsubstituted amino, andX is nitrogen or optionally CH,for dyeing or printing synthetic fibers, cellulose esters or blends thereof, dye mixtures comprising pyridine dyes of the above formulae and blue disperse dyes, the use thereof for dyeing and printing synthetic fibers, cellulose esters or blends thereof, and triazolopyridine dyes having a thienyl radical.Type: GrantFiled: September 7, 1993Date of Patent: December 27, 1994Assignee: BASF AktiengesellschaftInventors: Arno Lange, Volker Bach, Ruediger Sens, Karl-Heinz Etzbach, Helmut Reichelt, Sabine Gruettner-Merten
-
Patent number: 5371266Abstract: Methine transfer dyes have the formula ##STR1## where L is a bridge member which does not permit any conjugation of .pi.-electrons between Z and Y,X is cyano, C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.6 -monoalkylcarbamoyl, wherein alkyl may in each case be interrupted by oxygen atoms, or is C.sub.5 -C.sub.7 -cycloalkoxycarbonyl, C.sub.5 -C.sub.7 -monocycloalkylcarbamoyl, phenoxycarbonyl or monophenylcarbamoyl, andY and Z are each independently of the other aminophenylene, which may be benzo-fused, or heterocyclyl.Type: GrantFiled: February 18, 1994Date of Patent: December 6, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5350873Abstract: Optically active compounds of the formula I ##STR1## where R is C.sub.1 -C.sub.12 -alkyl or -perfluoroalkyl in which one or two non-adjacent CH.sub.2 or CF.sub.2 groups can also be replaced by --O-- and/or --CO-- and/or --CO--O-- and/or --CH.dbd.CH-- and/or --CH-halogen-- and/or --CHCN-- and/or --0--CO--CH-halogen-- and/or --O--CO--CHCN--, or is C.sub.1 -C.sub.12 -alkyl which can have a terminal chemically reactive group and in which a CH.sub.2 group can be replaced by --O--,A.sup.1 and A.sup.2 are each, independently of one another, 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl and/or Br atoms and/or CH.sub.3 groups and/or CN groups and in which one or two CH groups can also be replaced by N, 1,4-cyclohexylene in which one or two non-adjacent CH.sub.2 groups can also be replaced by --O-- and/or --S--, 1,4-piperidinediyl, 1,4-bicyclo[2.2.2]octylene, 2,6-naphthalenediyl, decahydro-2,6-naphthalenediyl or 1,2,3,4-tetrahydro-2,6-naphthalenediyl,A.sup.Type: GrantFiled: August 13, 1992Date of Patent: September 27, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Wolfgang Brox, Karl-Heinz Etzbach, Axel Paul, Karl Siemensmeyer
-
Patent number: 5338445Abstract: A module for a UASB (upflow anaerobic sludge blanket) reactor for anaerobic waste water treatment comprises an overflow threshold for the treated waste water that determines the water level in the module. Several immersed collection domes are provided for the digester gas which are staggered over the entire module cross-section and possess a drain into a collection pipe and an upper evacuation line for the waste air collecting above the water level. All walls, covers and installation parts of the module are made of plastic, if necessary reinforced with steel profiles, and are welded to each other. Also, all drains end at a narrow side of the module where they are connected in a gas-tight manner with discharge ducts which have been installed there along several modules and which may be closed off in sections.Type: GrantFiled: January 21, 1993Date of Patent: August 16, 1994Assignee: Passavant-Werke AGInventors: Michael Zumbragel, Volker Bach
-
Patent number: 5332520Abstract: A liquid-crystalline polymer of virtually uniform molecular weight, obtainable by polymerizing identical or different monomers of the formula I ##STR1## where R is hydrogen, chlorine or methyl,A is a flexible, long-chain moiety which acts as a spacer, is a mesogenic moiety built up from at least two aromatic rings which are linked to one another in a linear or approximately linear manner, andC is an optically active, chiral moiety,in from 0.01 to 0.1 molar solution in an inert organic solvent in the presence of from 1 to 40 mol %, based on the monomers, of a free-radical initiator, at from 40.degree. to 60.degree. C. for from 100 to 140 hours, and subsequently isolating the polymerization product from the reaction mixture, and the use thereof for building up recording layers for laser-optical and electrical recording elements and for electrophotography and for building up liquid-crystalline display elements.Type: GrantFiled: May 8, 1992Date of Patent: July 26, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Karl Siemensmeyer
-
Patent number: 5312703Abstract: A process for the reversible or irreversible production of an image by imagewise exposure of a recording layer to energy in the presence or absence of an electrical and/or magnetic field, resulting in a pattern of surface charges on the surface of the recording layer corresponding to the imagewise exposure to energy. The recording layer consists essentially ofan organic material which solidifies in a glass-like manner, is non-photoconductive or substantially non-photoconductive and contains permanent dipoles, in whichthe pattern of surface charges is produced without or substantially without the formation of free charge carriers by reversible imagewise alignment of at least some of the permanent dipoles present in the recording layer.Type: GrantFiled: March 13, 1992Date of Patent: May 17, 1994Assignee: BASF AktiengesellschaftInventors: Gerhard Wagenblast, Volker Bach
-
Patent number: 5312926Abstract: Indonaphthol thermal transfer dyes have the formula ##STR1## where X is nitrogen or the radical CH,R.sup.1 and R.sup.2 are each independently of the other C.sub.1 -C.sub.6 -alkyl, which may be substituted, C.sub.1 -C.sub.6 -monooxaalkyl or -dioxaalkyl or allyl,R.sup.3 and R.sup.4 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkanoylamino, andR.sup.5 is five-membered hetaryl which is not benzofused and has two or more hetero atoms,with the proviso that R.sup.1 and R.sup.2 are not both unsubstituted C.sub.1 -C.sub.6 -alkyl at one and the same time.Type: GrantFiled: March 29, 1991Date of Patent: May 17, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5310942Abstract: Pyridone transfer dyes have the formula ##STR1## where Q.sup.1 is hydrogen, fluorine, chlorine, methyl or a substituted amino radical,Q.sup.2 is hydrogen, fluorine or chlorine or Q.sup.1 and Q.sup.2 together with the carbon atoms to which they are attached form an aromatic carbocyclic or heterocyclic ring,x is a heterocyclic radical, a carboxylic or carboxamide radical or substituted amino radical andK is an aromatic radical.Type: GrantFiled: September 23, 1991Date of Patent: May 10, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Ruediger Sens, Karl-Heinz Etzbach
-
Patent number: 5281572Abstract: Bichromophoric methine and azamethine transfer dyes have the formulaZ.sup.2 --Z.sup.1 --LY.sup.1 --Y.sup.2whereinL is a bridge member which does not permit any conjugation of .pi.-electrons between Z.sup.1 and Y.sup.1,Y.sup.1 and Z.sup.1 are each independently of the other aminophenylene, which may be benzofused, or heterocyclyl andY.sup.2 and Z.sup.2 are each independently of the other benzoquinoneiminyl, which may be benzofused, or heterocyclyl.Type: GrantFiled: November 5, 1992Date of Patent: January 25, 1994Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5225548Abstract: Indophenol dyes of the formula ##STR1## where X is nitrogen or the radical CH,Q is a five-membered heterocyclic radical, andK is a radical of an aniline, aminonaphthalene, aminoquinoline or aminothiazole derivative, andthe radical A can be benzofused,are useful for thermal transfer processes.Type: GrantFiled: September 20, 1991Date of Patent: July 6, 1993Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5221658Abstract: One or more indoaniline dyes are transferred from a transfer to a sheet of plastic-coated paper by diffusion or sublimation with the aid of an energy source, said indoaniline dyes having the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each independently of the others hydrogen, methyl, fluorine or chlorine,X is fluorine or chlorine, andK is an aromatic radical.Type: GrantFiled: September 16, 1991Date of Patent: June 22, 1993Assignee: BASF AktiengesellschaftInventors: Volker Bach, Ruediger Sens, Karl-Heinz Etzbach
-
Patent number: 5214140Abstract: Bichromophoric methine and azamethine transfer dyes have the formulaZ.sup.2 --Z.sup.1 --LY.sup.1 --Y.sup.2whereL is a bridge member which does not permit any conjugation of .pi.-electrons between Z.sup.1 and Y.sup.1,Y.sup.1 and Z.sup.1 are each independently of the other aminophenylene, which may be benzofused, or heterocyclyl andY.sup.2 and Z.sup.2 are each independently of the other benzoquinoneiminyl, which may be benzofused, or heterocyclyl.Type: GrantFiled: March 13, 1992Date of Patent: May 25, 1993Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Ruediger Sens
-
Patent number: 5212027Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.c*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystalline S.sub.c* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.Type: GrantFiled: December 30, 1991Date of Patent: May 18, 1993Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul, Volker Bach
-
Patent number: 5187298Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.C*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystlaline S.sub.C* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.Type: GrantFiled: May 18, 1990Date of Patent: February 16, 1993Assignee: BASF AktiengesellschaftInventors: Kark-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul, Volker Bach
-
Patent number: 5187248Abstract: Novel laser-optical recording elements which can be repeatedly erased and recorded on contain recording layers (a) which exhibit enantiotropic, ferroelectric smectic liquid crystalline (S.sub.c*) behavior, so that they can be switched back and forth between two thermodynamically stable, optically distinguishable ferroelectric smectic liquid crystalline S.sub.C* order states on exposure to a laser beam of sufficient luminous power, by applying an external electric field. The recording layers (a) themselves consist mainly or exclusively of novel polymers P having chiral mesogenic side groups.Type: GrantFiled: December 30, 1991Date of Patent: February 16, 1993Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul, Volker Bach
-
Patent number: 5158928Abstract: Azo dyes useful for thermotransfer printing have the formula ##STR1##Type: GrantFiled: February 8, 1991Date of Patent: October 27, 1992Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Sabine Gruettner, Gunther Lamm, Helmut Reichelt, Ruediger Sens
-
Patent number: 5151506Abstract: Phenoneazo dyes of the formula ##STR1## where R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or substituted phenyl,R.sup.2 is cyano, carbamoyl or acetyl,R.sup.3 is substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.3 -C.sub.12 -alkyl which is interrupted by from 1 to 3 oxygen atoms and may be substituted, andR.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl,are useful for thermal transfer processes and for dyeing or printing synthetic fabrics.Type: GrantFiled: August 16, 1990Date of Patent: September 29, 1992Assignee: BASF AktiengesellschaftInventors: Volker Bach, Guenter Hansen, Gunther Lamm, Ruediger Sens
-
Patent number: RE34877Abstract: Azo dyes useful for thermotransfer printing have the formula ##STR1##Type: GrantFiled: December 14, 1993Date of Patent: March 14, 1995Assignee: BASF AktiengesellschaftInventors: Volker Bach, Karl-Heinz Etzbach, Sabine Gruettner, Gunther Lamm, Helmut Reichelt, Ruediger Sens