Patents by Inventor Hans R. Meyer

Hans R. Meyer 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: 4432886
    Abstract: Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R.sub.1, R.sub.2 and R.sub.3 is alkyl of 1 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups, or is alkenyl of 2 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups. These compounds have good solubility in water and they make it possible to prepare concentrated solutions and can be used for whitening organic material.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: February 21, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Hans R. Meyer
  • Patent number: 4384121
    Abstract: Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R.sub.1, R.sub.2 and R.sub.3 is alkyl of 1 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups, or is alkenyl of 2 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups. These compounds have good solubility in water and they make it possible to prepare concentrated solutions and can be used for whitening organic material.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 17, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Hans R. Meyer
  • Patent number: 4360679
    Abstract: Novel benzofuranyl benzimidazoles of the formula ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkenyloxy or cycloalkyloxy radical, an unsubstituted or substituted alkoxy, phenylalkoxy or phenoxy radical,each ofR.sub.2 and R.sub.3 independently represents a hydrogen atom, an alkyl or alkoxy radical, a halogen atom, or, if R.sub.1 represents hydrogen, together in the ortho-position to each other they represent a radical of the formula --CH.dbd.CH--CH.dbd.CH--, --O--CH.sub.2 --O-- or --O--CH.sub.2 --CH.sub.2 --O--,R.sub.4 represents a hydrogen atom, an alkyl, alkoxy or phenyl radical,R.sub.5 represents a sulpho or carboxyl group or the functional derivatives thereof including the cyano group or the trifluoromethyl group,R.sub.6 represents a hydrogen or halogen atom, an alkyl or alkoxy radical,R.sub.7 represents a cycloalkyl, alkenyl, or unsubstituted or substituted alkyl, phenyl or phenylalkyl radical, or, if n is 0, also represents a hydrogen atom,R.sub.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: November 23, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Weber
  • Patent number: 4339393
    Abstract: The distyrylbiphenyls of the formula ##STR1## in which X and X' independently of one another are a direct bond, oxygen, sulfur, --O--C.sub.1--3 --alkylene--CON(R.sub.4)--, --CON(R.sub.4)--,--O--C.sub.1--3 --alkylene--COO--, OCO or --COO--, with the proviso that if n+n'=O, X and X' may not be --CON(R.sub.4)--or O--C.sub.1--3 --alkylene--CON(R.sub.4)--, and if n+n'=2 and X and X' are --CON(R.sub.4)--or --COO--, A.crclbar. may not be a phosphite or phosphonate anion, and Y and Y' independently of one another are C.sub.1--20 --alkylene, R.sub.1 and R.sub.1' independently of one another are unsubstituted or substituted C.sub.1--8 --alkyl or C.sub.3--4 --alkenyl, or R.sub.1 together with R.sub.2, or R.sub.1' together with R.sub.2', is a heterocyclic ring, R.sub.2 and R.sub.2' independently of one another are unsubstituted or substituted C.sub.1--8 --alkyl or C.sub.3--4 -- alkenyl, or R.sub.2 together with R.sub.1, or R.sub.2' together with R.sub.1', is a heterocyclic ring, or R.sub.1 and R.sub.2, or R.sub.1' and R.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: July 13, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Christian Luthi, Hans R. Meyer, Kurt Weber
  • Patent number: 4314820
    Abstract: The distyrylbenzenes of the formula ##STR1## in which X and X' independently of one another are --COO-- or --CON(R.sub.4)-- in the o-position, a direct bond, oxygen, sulfur, --O--C.sub.1-3 --alkylene--CON(R.sub.4)--, --SO.sub.2 N(R.sub.4)--, --O--C.sub.1-3 -alkylene--COO-- or --OCO--, Y and Y' independently of one another are C.sub.1-20 -alkylene, R.sub.1 and R.sub.1 ' independently of one another are unsubstituted or substituted C.sub.1-8 -alkyl or C.sub.3-4 -alkenyl, or R.sub.1 together with R.sub.2, or R.sub.1 ' together with R.sub.2 ', is a heterocyclic ring, R.sub.2 and R.sub.2 ' independently of one another are unsubstituted or substituted C.sub.1-8 -alkyl or C.sub.3-4 -alkenyl, or R.sub.2 together with R.sub.1, or R.sub.2 ' together with R.sub.1 ', is a heterocyclic ring, or R.sub.1 and R.sub.2, or R.sub.1 ' and R.sub.2 ', together with R.sub.3 are a pyridine or picoline ring, R.sub.3 is hydrogen, unsubstituted or substituted C.sub.1-4 -alkyl or C.sub.3-4 -alkenyl, or together with R.sub.1 and R.sub.
    Type: Grant
    Filed: April 2, 1980
    Date of Patent: February 9, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Weber, Hans R. Meyer
  • Patent number: 4313846
    Abstract: The invention relates to N-acyl-o-phenylenediamines of the formula ##STR1## wherein A is a colorless carbocyclic or heterocyclic aromatic radical and each of R.sub.1 and R.sub.2 independently is an alkyl, alkenyl or phenyl radical which is unsubstituted or substituted by non-chromophoric groups, but only one of R.sub.1 and R.sub.2 can be phenyl, and the ring B can also be substituted by non-chromophoric groups. The invention also relates to processes for the manufacture of these compounds, their use for whitening man-made organic material, their conversion into benzimidazolium compounds as well as stable, concentrated aqueous solutions of such compounds, processes for their manufacture and their use for whitening man-made organic material.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: February 2, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Max Siegrist
  • Patent number: 4276188
    Abstract: A new process for manufacturing 2-stilbenyl-1,2,3-triazoles as well as new 2-stilbenyl-1,2,3-triazoles and their use for the optically brightening of organic material are disclosed.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: June 30, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Hans R. Meyer
  • Patent number: 4264325
    Abstract: 2-Phenyl-5-benzimidazol-2'-yl-furanes of the formula ##STR1## in which R.sub.1 to R.sub.6 are as defined in the specification, n is the number 0 or 1 and A.crclbar. is a colorless anion equivalent to the cation of the fluorescent brightener, their preparation as well as their use for optically brightening organic materials are disclosed.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: April 28, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Weber
  • Patent number: 4263431
    Abstract: The invention relates to cationic fluorescent whitening agents of the formula ##STR1## wherein A is the radical of a fluorescent whitening agent, Q is the direct bond or a bridge member, R.sub.1 to R.sub.5 are specific substituents and n is 1 or 2. A process for the manufacture of these compounds and a method of whitening organic material which comprises their use are also disclosed.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: April 21, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Weber, Christian Luthi, Hans R. Meyer
  • Patent number: 4250317
    Abstract: Novel benzofuranyl benzimidazoles of the formula ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkenyloxy or cycloalkloxy radical, an unsubstituted or substituted alkoxy, phenylalkoxy or phenoxy radical, each ofR.sub.2 and R.sub.3 independently represents a hydrogen atom, an alkyl or alkoxy radical, a halogen atom, or, if R.sub.1 represents hydrogen, together in the ortho-position to each other they represent a radical of the formula --CH.dbd.CH--CH.dbd.CH--, --O--CH.sub.2 --O-- or --O--CH.sub.2 --CH.sub.2 --O--,R.sub.4 represents a hydrogen atom, an alkyl, alkoxy or phenyl radical,R.sub.5 represents a sulpho or carboxyl group or the functional derivatives thereof including the cyano group or the trifluoromethyl group,R.sub.6 represents a hydrogen or halogen atom, an alkyl or alkoxy radical,R.sub.7 represents a cycloalkyl, alkenyl, or unsubstituted or substituted alkyl, phenyl or phenylalkyl radical, or, if n is O, also represents a hydrogen atom,R.sub.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: February 10, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Weber
  • Patent number: 4206072
    Abstract: Benzoxazolyl-phenyl-stilbenes of the formula ##STR1## in which X is a carboxylic acid group or an ester or amide thereof, a phenyl sulphonate group or a sulphonamide group, a cyano group or alkylsulphonyl and the ring A can be substituted by alkyl having 1 to 4 C atoms, phenyl, chlorine, alkoxy having 1 to 4 C atoms, phenoxy, cyano, alkylsulphonyl having 1 to 4 C atoms, phenylsulphonyl or alkoxycarbonyl having 2 to 6 C atoms, a process for their manufacture as well as their use for the optical brightening are disclosed.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: June 3, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Burdeska
  • Patent number: 4189589
    Abstract: 2-Phenyl-5-benzimidazol-2'-yl-furanes of the formula ##STR1## in which R.sub.1 is a sulphonic acid group or an ester or amide thereof, a carboxylic acid group or an ester or amide thereof, a cyano group, a trifluoromethyl group or an alkyl- or arylsulphonyl group, R.sub.2 is alkyl having 1 to 8 carbon atoms, alkenyl having 3 or 4 carbon atoms, cyclohexyl, hydroxyalkyl having 2 to 4 carbon atoms, alkoxyalkyl having a total of 3 to 6 carbon atoms, carboxyalkyl having 2 to 6 carbon atoms, carbalkoxyalkyl having a total of 3 to 6 carbon atoms, cyanoalkyl having 2 to 4 carbon atoms, carbamoylalkyl which has 1 to 6 carbon atoms in the alkyl moiety and is unsubstituted or substituted on the nitrogen atom by 1 or 2 alkyl having 1 to 3 carbon atoms, benzyl which is unsubstituted or substituted by chlorine, methyl or methoxy, dialkylaminoalkyl having a total of 3 to 7 carbon atoms or phenethyl and, if n is the number 0, also hydrogen, R.sub.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: February 19, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Weber
  • Patent number: 4177347
    Abstract: Distilbenyl-oxadizoles, a process for their preparation, their use for optically brightening organic materials as well as detergents containing them are disclosed.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: December 4, 1979
    Assignee: Ciba-Geigy Corporation
    Inventor: Hans R. Meyer
  • Patent number: 4172045
    Abstract: Process for the manufacture of 2-stilbenyl-1,2,3-triazoles containing carboxyl groups by reacting a 2-tolyl-1,2,3-triazole with an anil in the presence of a strongly basic alkali compound in a strongly polar, neutral to basic organic solvent as well as novel 2-stilbenyl-1,2,3-triazoles containing carboxyl groups are described.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: October 23, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Reinhard Zweidler
  • Patent number: 4158099
    Abstract: The invention provides a new process for the manufacture of aromatic compounds which at least once contain a benzene ring of an aromatic carbocyclic ring system bonded by an ethylene double bond in conjugation with a further aromatic ring system, i.e. contain the stilbene skeleton or stilbene analogon as central structural element, as well as certain classes of new compounds of this type. The process is characterized by the reaction of a Schiff base of an aromatic aldehyde with an aromatic carbocyclic six-membered ring compound which contains one to four methyl groups bonded to ring carbon atoms of a benzene ring, which furthermore contains aromatic rings which are exclusively six-membered carbocyclic rings, and wherein those benzene rings whose methyl groups are to be caused to react are free of other substituents which contain atoms wich are replaceable by alkali metal. The reaction is carried out in the presence of (a) a strongly basic alkali compound and (b) an N-dialkyl-acylamide as solvent.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: June 12, 1979
    Assignee: Ciba-Geigy AG
    Inventors: Adolf E. Siegrist, Peter Liechti, Hans R. Meyer, Kurt Weber
  • Patent number: 4146725
    Abstract: Disclosed are novel benzofuranyl benzimidazoles and a method for their preparation. The novel benzofuranyl benzimidazoles are useful as optical brighteners for optically brightening a wide variety of synthetic, regenerated or natural organic materials or substances, which contain such organic materials.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: March 27, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meyer, Kurt Weber