Patents by Inventor Werner H. Muller
Werner H. Muller 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: 5157018Abstract: Polymers comprising perfluoroalkyl groups, reproduction layers containing these polymers and use thereof for waterless offset printing. The novel perfluoroalkyl group-containing polymers comprise polymers or polycondensates and have, in each case as substituents on different carbon atoms of benzene rings, phenolic OH groups and perfluoroalkyl groups which are optionally attached through intermediate members. In particular, at least 10% of the polymer units carry perfluoroalkyl groups. These polymers are either formed by condensation of substituted phenols (e.g., 4-hydroxybenzoic acid-perfluoroalkyl ester) with an aldehyde, a ketone, or a reactive bismethylene compound or by reacting polymers containing phenolic OH groups (e.g., hydroxypolystyrene) or polycondensates containing reactive OH groups (e.g., phenol-formaldehyde resins) with a perfluoroalkyl group-containing compound (e.g., 2,2-dihydroperfluorodecanoic acid chloride).Type: GrantFiled: February 10, 1992Date of Patent: October 20, 1992Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 5104961Abstract: Polymers comprising perfluoroalkyl groups, reproduction layers containing these polymers and use thereof for waterless offset printing. The novel perfluoroalkyl group-containing polymers comprise polymers or polycondensates and have, in each case as substituents on different carbon atoms of benzene rings, phenolic OH groups and perfluoroalkyl groups which are optionally attached through intermediate members. In particular, at least 10% of the polymer units carry perfluoroalkyl groups. These polymers are either formed by condensation of substituted phenols (e.g., 4-hydroxybenzoic acid-perfluoroalkyl ester) with an aldehyde, a ketone, or a reactive bismethylene compound or by reacting polymers containing phenolic OH groups (e.g., hydroxypolystyrene) or polycondensates containing reactive OH groups (e.g., phenol-formaldehyde resins) with a perfluoroalkyl group-containing compound (e.g., 2,2-dihydroperfluorodecanoic acid chloride).Type: GrantFiled: December 19, 1990Date of Patent: April 14, 1992Assignee: Hoechst Celanese CorporationInventor: Werner H. Muller
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Patent number: 5006443Abstract: Polymers comprising perfluoralkyl groups, reproduction layers containing these polymers and use thereof for waterless offset printing. The novel perfluoralkyl group-containing polymers comprise polymers or polycondensates and have, in each case as substituents on different carbon atoms of benzene rings, phenolic OH groups and perfluoroalkyl groups which are optionally attached through intermediate members. In particular, at least 10% of the polymer units carry perfluoroalkyl groups. These polymers are either formed by condensation of substituted phenols (e.g., 4-hydroxybenzoic acid-perfluoroalkyl ester) with an aldehyde, a ketone, or a reactive bismethylene compound or by reacting polymers containing phenolic OH groups (e.g., hydroxypolystyrene) or polycondensates containing reactive OH groups (e.g., phenol-formaldehyde resins) with a perfluoroalkyl group-containing compound (e.g., 2,2-dihydroperfluorodecanoic acid chloride).Type: GrantFiled: January 7, 1988Date of Patent: April 9, 1991Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4853448Abstract: Copolymers comprising perfluoroalkyl groups, reproduction layers containing these copolymers and use thereof for waterless offset printing. The novel perfluoroalkyl group-containing copolymers are prepared from at least two different monomers, monomer (a) comprising acryloyl or methacryloyl groups and phenolic OH groups and monomer (b) comprising acryloyloxy, methacryloyloxy or vinyl groups and a perfluoroalkyl group. Monomer component (a) can, for example, be prepared from a hydroxybenzoic acid by esterification with a hydroxyalkyl-acrylate. The novel copolymers are, in particular, used as binders in radiation-sensitive reproduction layers which additionally contain at least one radiation-sensitive compound. Reproduction layers of this kind are used as radiation-sensitive coatings of support materials for printing plates used in waterless offset printing.Type: GrantFiled: July 30, 1987Date of Patent: August 1, 1989Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Arnold Schneller
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Patent number: 4839256Abstract: Light-sensitive perfluoroalkyl group-containing 1,2-naphthoquinone diazide compounds and reproduction materials comprising a support and a light-sensitive layer containing such compounds useful in producing planographic printing plates for waterless printing. The 1,2-naphthoquinone diazide compounds correspond to the formula I. ##STR1## wherein Ar denotes a mononuclear to trinuclear aromatic radicalD is a 1,2-naphthoquinone-2-diazide-4-sulfonyl radical or a 1,2-naphthoquinone-2-diazide-5-sulfonyl radical,R.sub.F is a perfluoroalkyl radical having from 5 to 15 carbon atoms,W is a single bond or is selected from the group consisting of______________________________________ (CH.sub.2).sub.m COO (CH.sub.2).sub.m OOCCHR.sup.2O (CH.sub.2).sub.m OC.sub.o H.sub.2oCOO (CH.sub.2).sub.m OOC (CH.sub.2).sub.m OOCC.sub.o H.sub.2oCOO (CH.sub.2).sub.m SO.sub.2 NH (CH.sub.2).sub.m OOCCHCHCOO C.sub.6 H.sub.4 SO.sub.2 NH (CH.sub.2).sub.m CO (CH.sub.2).sub.m CONH (CH.sub.2).sub.m SO.sub.3 (CH.sub.2).sub.m OOCC.sub.o H.sub.Type: GrantFiled: August 21, 1987Date of Patent: June 13, 1989Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4724195Abstract: Copolymers comprising perfluoroalkyl groups, reproduction layers containing these copolymers and use thereof for waterless offset printing. The novel perfluoroalkyl group-containing copolymers are prepared from at least two different monomers, monomer (a) comprising acryloyl or methacryloyl groups and phenolic OH groups and monomer (b) comprising acryloyloxy, methacryloyloxy or vinyl groups and a perfluoroalkyl group. Monomer component (a) can, for example, be prepared from a hydroxybenzoic acid by esterification with a hydroxyalkyl-acrylate. The novel copolymers are, in particular, used as binders in radiation-sensitive reproduction layers which additionally contain at least one radiation-sensitive compound. Reproduction layers of this kind are used as radiation-sensitive coatings of support materials for printing plates used in waterless offset printing.Type: GrantFiled: June 7, 1985Date of Patent: February 9, 1988Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Arnold Schneller
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Patent number: 4409400Abstract: Cyclohexane-1,3-diones are prepared by passing .delta.-ketocarboxylic acid esters in the gaseous phase over a temperature of from 250.degree. C. to 500.degree. C. at a catalyst. The catalyst contains at least one element of groups III B or IV B of the Periodic System in the form of a compound. Particularly preferred catalysts are thorium compounds on charcoal carriers.Type: GrantFiled: April 21, 1982Date of Patent: October 11, 1983Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Karl E. Mack, Hansjorg Hey
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Patent number: 4405813Abstract: Preparation of 3,5-dimethylaniline from 3,5-dimethyl-2-cyclohexenone azine by heating in inert solvents in the presence of a catalyst containing a noble metal of the 8th auxiliary group of the Periodic Table of Elements gives high yields when the solvent is an aliphatic ether, especially a lower dialkyl ether of a polyethyleneglycol.Type: GrantFiled: November 4, 1981Date of Patent: September 20, 1983Assignee: Hoechst AktiengesellschaftInventors: Rudiger Berthold, Werner H. Muller
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Patent number: 4377709Abstract: 5-Oxoalkanoic acids are prepared by addition of a ketone containing at least one hydrogen atom in the .alpha.-position with regard to the keto group, to an .alpha.,.beta.-unsaturated acid. As catalysts secondary amines are present.Type: GrantFiled: December 19, 1980Date of Patent: March 22, 1983Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4375560Abstract: The invention provides a process for the preparation of 3,5-dimethylaniline by catalytically dehydrogenating 3,5-dimethyl-cyclohexenone oxime in the gaseous phase. The catalyst contains at least one noble metal of the 8th subgroup of the Periodic Table.Type: GrantFiled: November 4, 1981Date of Patent: March 1, 1983Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Rudiger Berthold
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Patent number: 4375561Abstract: Aromatic amines are obtained from the corresponding cycloaliphatic oximes by heating the oxime to a temperature of from 150.degree. to 350.degree. C. in an ether group containing solvent in the presence of a catalyst containing a noble metal of the 8th auxiliary group of the Periodic Table of Elements. The solvent is preferably an aliphatic ether, especially a lower dialkyl ether of a polyethyleneglycol.Type: GrantFiled: November 4, 1981Date of Patent: March 1, 1983Assignee: Hoechst AktiengesellschaftInventors: Rudiger Berthold, Werner H. Muller
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Patent number: 4332941Abstract: Cyclohexanones and -hexenones ##STR1## R.sup.1 is hydrogen or--CO--O--C.sub.n H.sub.2n+1-m (--NR.sup.4 R.sup.5) (1c)R.sup.2 is a group 1c, R.sup.3 is C.sub.1 - to C.sub.10 -alkyl, phenyl or phenyl substituted by lower alkyl, lower alkoxy, trifluoromethyl, nitro, cyano, chloro, carbamoyl, lower-alkyl-carbamoyl, sulfamoyl or lower-alkyl-sulfamoyl, R.sup.4 and R.sup.5 are lower alkyl or --NR.sup.4 R.sup.5 is pyrrolidinyl, piperidyl or morpholyl, m is 1 or 2 and n is 2 to 6, are obtained by reacting 2 mols of an esterCH.sub.3 --CO--CH.sub.2 --CO--O--C.sub.n H.sub.2n+1-m (--NR.sup.4 R.sup.5).sub.m (2)with an aldehyde R.sup.3 --CHO (3). The compounds (1) easily saponify and decarboxylate without an added catalyst to form a cyclohexenones ##STR2## while setting free the alcoholHO--C.sub.n H.sub.2n+1-m (--NR.sup.4 R.sup.5).sub.m (5)which reacts without a catalyst with diketene to form the ester (2).Type: GrantFiled: October 10, 1980Date of Patent: June 1, 1982Assignee: Hoechst AktiengesellschaftInventors: Rudiger Berthold, Werner H. Muller
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Patent number: 4277606Abstract: 8-Oxo-5,6,7,8-tetrahydro-2-quinolone is a novel compound which is prepared by hydrolyzing the hydrochloride of the corresponding 8-chloro compound or the hydrobromide of the corresponding 8-bromo compound to give the corresponding 8-hydroxy compound, and dehydrogenating the latter one.Type: GrantFiled: March 6, 1980Date of Patent: July 7, 1981Assignee: Hoechst AktiengesellschaftInventors: Helmut Meidert, Wilfried Pressler, Werner H. Muller
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Patent number: 4255571Abstract: Pyridazones are prepared by heating 4,5-dihydro-3-pyridazones in the liquid phase in the presence of a dehydrogenation catalyst. The reaction temperature is in the range of from 150.degree. to 350.degree. C. The dehydrogenation catalyst contains a noble metal of subgroup 8 of the periodic table, which is generally supported on a carrier. The reaction is preferably carried out in the presence of a solvent.Type: GrantFiled: December 20, 1978Date of Patent: March 10, 1981Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4250336Abstract: Resorcinols are prepared by converting .delta.-ketocarboxylic acid esters in the gaseous phase at a temperature from 250.degree. to 500.degree. C. in the presence of hydrogen at a catalyst. The catalyst consists of two components which are prepared separately and combined thereafter. The first component contains at least one compound of a metal of group VIII and/or at least one compound of a metal of group I B supported on one or several carrier materials. The second component contains at least one compound of a metal of group II A and/or IV A and/or III B and/or IV B supported on one or several carrier materials. A particularly preferred catalyst consists of a mixture of equal volume parts of platinum/charcoal as first component and of thorium/charcoal as second component.Type: GrantFiled: June 6, 1979Date of Patent: February 10, 1981Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Karl E. Mack, Hansjorg Hey
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Patent number: 4235790Abstract: A process for separating p-benzoquinone as quinhydrone from the reaction solution obtained in the oxidation of phenol with oxygen in the presence of copper salts and of nitriles as the solvent, which comprises suspending and/or dissolving solid hydroquinone in this reaction solution, precipitating the p-benzoquinone contained therein as quinhydrone and separating it from the reaction solution.Type: GrantFiled: January 22, 1979Date of Patent: November 25, 1980Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Dieter Freudenberger
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Patent number: 4226997Abstract: 8-Chloro-5,6,7,8-tetrahydro-2-quinolone and 8-bromo-5,6,7,8-tetrahydro-2-quinolone, the hydrochloride or hydrobromide thereof and their manufacture by reacting 3,4,5,6,7,8-hexahydro-2-quinolone with chlorine or bromine in an inert solvent at 10.degree. to 50.degree. C. with heating of the reaction mixture to 60.degree. to 80.degree. C. after the halogen addition.Type: GrantFiled: September 13, 1979Date of Patent: October 7, 1980Assignee: Hoechst AktiengesellschaftInventors: Helmut Meidert, Werner H. Muller, Wilfried Pressler
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Patent number: 4212823Abstract: 3-Aminophenols are prepared by dehydrogenation at elevated temperature of 3-aminocyclohexenones. The compounds obtained are valuable intermediates for drugs, dyestuffs and herbicides.Type: GrantFiled: July 20, 1976Date of Patent: July 15, 1980Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4161615Abstract: Preparation of 2-hydroxynaphthalenes optionally substituted by aliphatic or aromatic radicals from cycloalkenones or hydroxycycloalkanones by heating them in the presence of a dehydrogenation agent.Type: GrantFiled: May 26, 1977Date of Patent: July 17, 1979Assignee: Hoechst AktiengesellschaftInventor: Werner H. Muller
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Patent number: 4160113Abstract: The present invention is related to a process for the manufacture of resorcinols by catalytic dehydrogenation of cyclohexane diones-(1,3) in the liquid phase by means of a dehydrogenating mixture consisting of a solvent and of a catalyst containing a noble metal from Group VIII of the Periodic Table.Type: GrantFiled: November 11, 1977Date of Patent: July 3, 1979Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Knut Riedel, Hans Krekeler