Patents by Inventor Bernhard Albert
Bernhard Albert 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: 5410053Abstract: There are described rhodamine derivatives of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, or R.sup.2 is paired off with R.sup.5 or R.sup.4 with R.sup.6 to form 1,3-propylene, which can be substituted,R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are each hydrogen or methyl,R.sup.9 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl or a radical of the formula (C.sub.2 H.sub.4 O--).sub.n H, where n is 2 or 3, andAn.sup..crclbar. is the equivalent of an anion derived from an addition or condensation polymer that contains acid groups, novel cyclic rhodamine dyes, and the use of the novel rhodamine derivatives and cyclic rhodamine dyes for dyeing polyacrylonitrile fibers, for incorporation into polymers or for preparing inks.Type: GrantFiled: March 16, 1994Date of Patent: April 25, 1995Assignee: BASF AktiengesellschaftInventors: Erwin Hahn, Claudia Kraeh, Udo Mayer, Bernhard Albert, Walter Denzinger
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Patent number: 5405968Abstract: Methine dyes with a polyketo group I ##STR1## where A is ##STR2## R.sup.1 is a 5- or 6-membered cycloaliphatic radical which contains one or two hetero atoms from the group --NR.sup.4 --, --O-- and --S-- and which may be fused to an isoaromatic or heteroaromatic group, R.sup.2 and R.sup.3 are identical or different C.sub.1 -C.sub.10 -alkyl groups or together one of the radicals R.sup.1, and m and n are identical or different integers from 0 to 3, are useful as drugs, for producing singlet oxygen, as sensitizers in electrophotographic layers and for photopolymerizations and as laser light sensitive dyes in optical recording media; also novel triketo- and tetraketomethine dyes.Type: GrantFiled: September 27, 1993Date of Patent: April 11, 1995Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Knut Kessel, Hans-Dieter Martin, Stefan Silber
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Patent number: 5338848Abstract: Indolizinetrimethine dyes useful for laser-optical recording media have the formula ##STR1## where the variables are defined as follows: R.sup.1 is C.sub.1 -C.sub.22 -alkyl which may be substituted by halogen, hydroxyl, C.sub.1 -C.sub.6 -alkoxy, benzyloxy, C.sub.1 -C.sub.6 -alkanoyl, C.sub.1 -C.sub.6 -alkoxycarbonyl or phenyl, C.sub.3 -C.sub.7 -cycloalkyl, which may be substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, or phenyl which may be substituted by halogen, hydroxyl, cyano, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, carboxyl, C.sub.1 -C.sub.6 -alkoxycarbonyl or hydroxysulfonyl,R.sup.2 has one of the meanings of R.sup.1, except than the carbon chain of C.sub.1 -C.sub.22 -alkyl may be interrupted by from one to five oxygen atoms in ether function,R.sup.3 is hydrogen, halogen or C.sub.1 -C.sub.6 -alkyl,Z is --O-- or --NH--, andAn.sup..crclbar. is one equivalent of an acid anion.Type: GrantFiled: July 20, 1993Date of Patent: August 16, 1994Assignee: BASF AktiengesellschaftInventors: Michael Acker, Bernhard Albert, Michael Schmitt
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Patent number: 5282894Abstract: A liquid useful as printing ink contains one or more dyes with their absorption maximum within the range from 700 to 1200 nm selected from the phthalocyanines, the naphthalocyanines, the nickel-dithiolene complexes, the aminium compounds of aromatic amines, the methine dyes or the azulenesquaric acid dyes, as well as solvent and binder.Type: GrantFiled: January 25, 1993Date of Patent: February 1, 1994Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Friedrich Closs, Juergen Kipper, Walter Kurtz, Karin H. Beck, Rudolf Griebel
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Patent number: 5235573Abstract: Moving laser beams from useful tracks to alternative positions in devices in which information is stored optically or magneto-optically. This results in higher signal-to-noise ratios.Type: GrantFiled: October 3, 1990Date of Patent: August 10, 1993Assignee: BASF AktiengesellschaftInventors: Klaus D. Schomann, Peter Hammerschmitt, Sibylle Brosius, Kal-Heinz Feuerherd, Bernhard Albert, Michael Schmitt, Michael Acker
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Patent number: 5221751Abstract: Polymethine dyes suitable for use in an optical recording medium have the formula ##STR1## where p is 0 or 1,Z is nitrogen, oxygen, sulfur, isopropylidene, cyclohexylidene or the radical --CH.dbd.CH--,Q is a radical of the formula ##STR2## where R.sup.2 is hydrogen, chlorine, bromine or C.sub.1 -C.sub.6 -alkyl, L is C.sub.1 -C.sub.12 -alkylene, or a single bondR.sup.1 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted phenyl,X.sup..crclbar. is an anion, and the rings A may each be substituted or benzofused.Type: GrantFiled: May 20, 1991Date of Patent: June 22, 1993Assignee: BASF AktiengesellschaftInventors: Michael Acker, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
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Patent number: 5169975Abstract: Binary azulenesquaric acid dyes of the formula ##STR1## where X is a bridging member, Y is hydrogen, cyano or formula CO--OR.sup.5, CO--NHR.sup.5, OR.sup.5, O--CO--OR.sup.5, NH--CO--R.sup.5, NH--CO--OR.sup.5 or NH--SO.sub.2 --R.sup.5, where R.sup.5 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.5 -C.sub.7 -cycloalkyl or unsubstituted or substituted phenyl, L.sup.1 and L.sup.2 are each, independently of one another, a chemical bond or unsubstituted or substituted C.sub.1 -C.sub.12 -alkylene and R.sup.1, R.sup.2, R.sup.3, R.sup.4, Q.sup.1, Q.sup.2, Q.sup.3 and Q.sup.4 are each, independently of one another, hydrogen or unsubstituted or substituted C.sub.1 -C.sub.12 -alkyl, their intermediates and an optical recording medium containing the novel dyes are described.Type: GrantFiled: November 15, 1991Date of Patent: December 8, 1992Assignee: BASF AktiengesellschaftInventors: Michael Schmitt, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
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Patent number: 5162045Abstract: Dyes are transferred from a carrier by sublimation/vaporization to plastic-coated papers by a process in which the dyes used are of the general formula (I) ##STR1## where A is D--N=N-- or ##STR2## R.sup.1 and R.sup.2 are each hydrogen, alkyl, alkoxy, alkylthio or halogen and R.sup.1 and R together may furthermore form a 5-membered or 6-membered heterocyclic ring, and R and R' independently of one another are each hydrogen, phenyl which is unsubstituted or substituted by methyl or methoxy, or C.sub.5 - or C.sub.6 -cycloalkyl or C.sub.1 -C.sub.6 -alkyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.2 -C.sub.5 -alkanoyloxy, C.sub.1 -C.sub.4 -alkoxycarbonyloxy, C.sub.1 -C.sub.4 -alkoxy-C.sub.2 - or C.sub.3 -alkoxycarbonyloxy, hydroxyl, cyano, halogen, phenyl or C.sub.5 - or C.sub.Type: GrantFiled: October 31, 1990Date of Patent: November 10, 1992Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Karl-Heinz Etzbach, Ruediger Sens
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Patent number: 5124240Abstract: An optical recording medium consists essentially of a base material and a light-absorbing layer which contains a thermoplastic binder and at least one dye, wherein the thermoplastic binder is a polycyclic hydrocarbon which has a glass transition temperature Tg of greater than 150.degree. C. and is soluble to more than 3% by weight in an aliphatic or aromatic hydrocarbon.Type: GrantFiled: March 16, 1990Date of Patent: June 23, 1992Inventors: Sibylle Brosius, Bernhard Albert, Michael Schmitt, Klaus D. Schomann, Harald Kuppelmaier, Ulrich Harten
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Patent number: 5122435Abstract: Amido-containing azulene-aquaric acid dyes of the formula ##STR1## where L is C.sub.1 -C.sub.12 -alkylene which may be substituted by phenyl,R.sup.1 and R.sup.2 are each independently of the other hydrogen, substituted or unsubstituted C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, substituted or unsubstituted phenyl, 2,2,6,6-tetramethylpiperidin-4-yl or cyclohexylaminocarbonyl andR.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl,with the proviso that when R.sup.6 is hydrogen the positions of the substituents CH.sub.2 --L--CO--NR.sup.1 R.sup.2 and R.sup.5 on either or both azulene rings may also be interchanged with each other within an azulene ring are used in an optical recording medium.Type: GrantFiled: October 22, 1990Date of Patent: June 16, 1992Assignee: BASF AktiengesellschaftInventors: Michael Schmitt, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
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Patent number: 5101032Abstract: Cycloalkylidene dyes have the formula ##STR1## where m is 0 or 1,L is a chemical bond or C.sub.1 -C.sub.2 -alkylene, which may be substituted,R.sup.1 is hydrogen, C.sub.1 -C.sub.20 -alkyl, which may be phenyl-substituted, substituted or unsubstituted phenyl, naphthyl or C.sub.3 -C.sub.7 -cycloalkyl,Y is oxygen or two hydrogens,X.sup.1 is oxygen andX.sup.2 is C.sub.1 -C.sub.8 -alkanoyloxy, substituted or unsubstituted benzoyloxy, C.sub.1 -C.sub.6 -trialkylsilyloxy or a radical of the formula OR.sup.1 or NR.sup.2 R.sup.3, where R.sup.1 is as defined above and R.sup.2 and R.sup.3 are identical or different and each is independently of the other C.sub.1 -C.sub.20 -alkyl, which may be phenyl-substituted, substituted or unsubstituted phenyl, naphthyl, or C.sub.3 -C.sub.7 -cycloalkyl or R.sup.2 and R.sup.3 together with the nitrogen atom joining them are saturated heterocyclyl, or else one of R.sup.2 and R.sup.3 is hydrogen, or X.sup.1 and X.sup.Type: GrantFiled: October 22, 1990Date of Patent: March 31, 1992Assignee: BASF AktiengesellschaftInventors: Hans-Dieter Martin, Bernhard Albert, Knut Kessel
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Patent number: 5064702Abstract: Quinoxalinepentamethine dyes of the formula ##STR1## where R.sup.1 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.22 -alkyl or substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl,R.sup.2 is hydrogen, chlorine, bromine or C.sub.1 -C.sub.6 -alkyl,Y is a radical of the formula --N.dbd.C(CH.sub.3)-- or --N(R.sup.1)--CO--, where R.sup.1 is as defined above,Z.sup.1 and Z.sup.2 are each hydrogen or together are unsubstituted or substituted C.sub.2 -C.sub.3 -alkylene,X.sup..crclbar. is an anion andthe rings A and B independently of each other may be substituted and/or benzofused and are useful in optical recording media.Type: GrantFiled: October 26, 1990Date of Patent: November 12, 1991Assignee: BASF AktiengesellschaftInventors: Michael Acker, Peter Neumann, Bernhard Albert, Sibylle Brosius, Klaus D. Schomann, Harald Kuppelmaier
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Patent number: 5061596Abstract: Thin radiation sensitive coating films contain silicon naphthalocyanines of the formula ##STR1## where Nc is the radical of a naphthalocyanine system which may be substituted by C.sub.1 -C.sub.10 -alyl or C.sub.1 -C.sub.10 -alkoxy, andR.sup.1 and R.sup.2 are indentical or different and each is independently of the other a radical of the formula ##STR2## where R.sup.3 is branched C.sub.6 -C.sub.20 -alkyl of the formula ##STR3## where n is from 1 to 5 and R.sup.6 and R.sup.7 independently of each other are C.sub.1 -C.sub.16 -alkyl, and R.sup.4 and R.sup.5 are independently of each other C.sub.1 -C.sub.10 -alkyl or the radical OR.sup.3 where R.sup.3 is as defined above, or the radical R.sup.1 may also be C.sub.1 -C.sub.10 -alkyl.Type: GrantFiled: March 10, 1989Date of Patent: October 29, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Peter Neumann, Sibylle Brosius
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Patent number: 5047312Abstract: An optical recording medium contains silicon naphthalocyanines of the formula ##STR1## where Nc is the radical of a naphthalocyanine system which may be substituted by alkyl, alkoxy, aryl or aralkyl, andR.sup.1 and R.sup.2 are each independently of the other a radical of the formula (O).sub.n R.sup.3, where n is 0 or 1 and R.sup.3 is an unsubstituted radical, or ##STR2## where R.sup.3 is as defined above and R.sup.4 and R.sup.5 are each independently of the other alkyl, alkoxy or (O).sub.n R.sup.3 or R.sup.1 is alkyl.Type: GrantFiled: August 22, 1989Date of Patent: September 10, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Peter Neumann, Sibylle Brosius
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Patent number: 5032495Abstract: An optical recording medium contains tetraazaporphyrins of the formula ##STR1## where L.sup.1, L.sup.2, L.sup.3 and L.sup.4 are each independently of the others the radical of a bicyclic aromatic heterocycle containing 1 to 3 identical or different heteroatoms selected from the group consisting of N, O and S, which may be substituted, andR.sup.1 and R.sup.2 have defined meanings.Type: GrantFiled: August 18, 1989Date of Patent: July 16, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Peter Neumann, Rolf-Dieter Kohler
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Patent number: 4999026Abstract: Dyes are transferred from a carrier by sublimation/vaporization to plastic-coated papers by a process in which the dyes used are of the general formula (I) ##STR1## where A is D--N.dbd.N-- or ##STR2## R.sup.1 and R.sup.2 are each hydrogen, alkyl, alkoxy, alkylthio or halogen and R.sup.1 and R together may furthermore form a 5-membered or 6-membered heterocyclic ring, and R and R' independently of one another are each hydrogen, phenyl which is unsubstituted or substituted by methyl or methoxy, or C.sub.5 - or C.sub.6 -cycloalkyl or C.sub.1 -C.sub.6 -alkyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.2 -C.sub.5 -alkanoyloxy, C.sub.1 -C.sub.4 -alkoxycarbonyloxy, C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -or C.sub.3 -alkoxycarbonyloxy, hydroxyl, cyano, halogen, phenyl or C.sub.5 - or C.sub.Type: GrantFiled: July 24, 1989Date of Patent: March 12, 1991Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Karl-Heinz Etzbach, Ruediger Sens
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Patent number: 4966798Abstract: An optical recording medium comprises a support material and a light-absorbing layer consisting essentially of a soluble mixture of a thermoplastic binder and at least one dye, wherein the thermoplastic binder is a phenol-aldehyde resin having an average molecular weight of greater than 300 which is soluble in an alcohol having a boiling point of less than 200.degree. C.Type: GrantFiled: June 9, 1989Date of Patent: October 30, 1990Assignee: BASF AktiengesellschaftInventors: Sibylle Brosius, Helmut Barzynski, Karl-Heinz Feuerherd, Wolfgang Schrott, Bernhard Albert, Michael Acker, Klaus D. Schomann, Harald Kuppelmaier, Michael Schmitt
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Patent number: 4946762Abstract: Metal-containing or metalfree, monosubstituted or disubstituted phthalocyanines I which have one or two of the following radicals R as substituents on their benzene rings: R=bromine, cyano, C.sub.1 -C.sub.3 -alkyl, n-butyl, i-butyl, C.sub.5 -C.sub.20 -alkyl, C.sub.5 -C.sub.10 -cycloalkyl, fluorinated C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.20 -aryl, XR.sup.1, where X is oxygen, sulfur, selenium, tellurium or imino (NH) and R.sup.1 is C.sub.1 -C.sub.6 -alkyl, fluorinated C.sub.1 -C.sub.6 -alkyl or C.sub.6 -C.sub.20 -aryl, or Si(R.sup.2).sub.3, where R.sup.2 is C.sub.1 -C.sub.6 -alkyl, each and every substituted benzene ring being substituted by only one R radical, are useful in Laser-optical recording materials.Type: GrantFiled: February 24, 1989Date of Patent: August 7, 1990Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Harald Kuppelmaier, Gerhard Wagenblast
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Patent number: 4937338Abstract: Pigment of the general formula:f.Het (I)where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture of these with phosphorus, silicon, cobalt, aluminum, manganese, chromium, nickel or a mixture of these or a copper (I)-hexacyanoferrate(II) anion, are superior to the known IR dyes in terms of thermal stability and photostability, and give optical recording media having superior properties, such as a high signal/noise ratio.Type: GrantFiled: April 20, 1989Date of Patent: June 26, 1990Assignee: BASF AktiengesellschaftInventors: Helmut Flohr, Joachim Jesse, Bernhard Albert, Peter Neumann
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Patent number: 4917989Abstract: An optical recording medium contains a transparent base, a dye-containing layer which is sensitive to laser light and a reflector layer which contains a silicon-phthalocyanine derivative of the formula ##STR1## where R.sup.1 is hydrogen, alkyl, alkoxy, halogen or trialkylsilyl, n is 1, 2, 3 or 4 and A and B are identical or different and independently of one another are each alkyl, halogen or unsubstituted or substituted alkoxy or trialkylsilyloxy.Type: GrantFiled: May 17, 1988Date of Patent: April 17, 1990Assignee: BASF AktiengesellschaftInventors: Bernhard Albert, Peter Hauser, Michael Acker, Wolfgang Schrott, Gerhard Wagenblast