Patents by Inventor Peter Burri

Peter Burri 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: 5244860
    Abstract: There is described a pressure-sensitive recording and transfer material containing in a first sheet a coating comprising one of the components (A) and (B) or a solvent for these components and in a second sheet the other or both of the components (A) and (B) and an electron-attracting and colour-developing material as component (C),(A) being a polycyclic compound of the formula ##STR1## where X is a monocyclic or polycyclic aromatic or heteroaromatic radical, Y is a substituent which is detachable as an anion, Q.sub.1 is --O--, --S--, ##STR2## Q.sub.2 is --CH.sub.2 --, --CO--, --CS-- or --SO.sub.2 --, R is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.10 cycloalkyl, aryl, such as phenyl, or aralkyl, such as benzyl, and the ring A, which may be substituted, is an aromatic or heterocyclic radical of 6 ring atoms with or without a fused aromatic ring which may likewise be substituted, and(B) being an organic condensation component.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: September 14, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Rene Graf, Werner Mischler, Peter Burri
  • Patent number: 4369326
    Abstract: Carbazolylmethane compounds of the formula ##STR1## wherein one of Y.sub.1, Y.sub.2 and Q represents a 3-carbazolyl radical of the formula ##STR2## and each of the other two independently represents an amino-substituted phenyl radical of the formula ##STR3## a 3-indolyl radical of the formula ##STR4## These compounds are particularly suitable for use as color formers in pressure-sensitive or heat-sensitive recording material.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: January 18, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean C. Petitpierre, Peter Burri
  • Patent number: 4355823
    Abstract: The present invention relates to a pressure-sensitive or heat-sensitive recording material which contains as color former in its color-forming system at least one carbazolylmethane compound of the general formula ##STR1## wherein each of R.sub.1 and R.sub.2 independently represents hydrogen, alkyl of not more 12 carbon atoms which is unsubstituted or substituted or alkenyl of not more than 12 carbon atoms, acyl of 1 to 12 carbon atoms, phenyl, benzyl, substituted phenyl or substituted benzyl,Z represents alkyl of 1 to 12 carbon atoms, alkenyl of not more than 12 carbon atoms, aryl, aralkyl, or represents a heterocyclic radical, andeach of the rings A, B, D and E independently can be substituted or unsubstituted.The carbazolylmethane compounds yield copies of improved color intensity and lightfastness.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: October 26, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4343944
    Abstract: An indolinospiropyrane compound of the formula ##STR1## wherein R.sub.1 represents alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl, phenyl or benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy,R.sub.2 represents hydrogen, alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl or benzyl which is unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, orR.sub.1 and R.sub.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: August 10, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4339385
    Abstract: An indolinospiropyrane compound of the formula ##STR1## wherein R.sub.1 represents alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl, phenyl or benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy,R.sub.2 represents hydrogen, alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl or benzyl which is unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, orR.sub.1 and R.sub.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: July 13, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4291902
    Abstract: Substituted 3,6-diaminophthalides of the formula ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 independently represents alkyl of not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or represents cycloalkyl, benzyl, or benzyl which is substituted by halogen, lower alkyl or lower alkoxy, and R.sub.1 can also be hydrogen and R.sub.3 can also be phenyl, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, represent a 5- or 6-membered heterocyclic radical and the ring A is unsubstituted or substituted or contains a fused, unsubstituted or substituted benzene or heterocyclic ring.These compounds are suitable in particular for use as color formers in pressure-sensitive or heat-sensitive recording materials.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: September 29, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4275005
    Abstract: Carbazolylmethane compounds of the formula ##STR1## wherein one of Y.sub.1, Y.sub.2 and Q represents a 3-carbazolyl radical of the formula ##STR2## and each of the other two independently represents an amino-substituted phenyl radical of the formula ##STR3## a 3-indolyl radical of the formula ##STR4## a 3-carbazolyl radical of the formula ##STR5## or a 3-carbazolyl radical of the formula (1a), and Q also represents hydrogen, alkyl of 1 to 12 carbon atoms, alkenyl containing not more than 12 carbon atoms, aryl, aralkyl or a further heterocyclic radical, while each of X.sub.1 and X.sub.2 independently represents hydrogen, alkyl containing not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or represents cycloalkyl, phenyl, benzyl, or phenyl or benzyl which is substituted by halogen, lower alkyl or lower alkoxy, or X.sub.1 and X.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered heterocyclic radical, X.sub.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: June 23, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean C. Petitpierre, Peter Burri
  • Patent number: 4254032
    Abstract: Carbazolylmethane compounds of the formula ##STR1## wherein one of Y.sub.1, Y.sub.2 and Q represents a 3-carbazolyl radical of the formula ##STR2## and each of the other two independently represents an amino-substituted phenyl radical of the formula ##STR3## a 3-indolyl radical of the formula ##STR4## a 3-carbazolyl radical of the formula ##STR5## or a 3-carbazolyl radical of the formula (1a), and Q also represents hydrogen, alkyl of 1 to 12 carbon atoms, alkenyl containing not more than 12 carbon atoms, aryl, aralkyl or a further heterocyclic radical, while each of X.sub.1 and X.sub.2 independently represents hydrogen, alkyl containing not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or represents cycloalkyl, phenyl, benzyl, or phenyl or benzyl which is substituted by halogen, lower alkyl or lower alkoxy, or X.sub.1 and X.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered heterocyclic radical, X.sub.
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: March 3, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean C. Petitpierre, Peter Burri
  • Patent number: 4238130
    Abstract: A pressure-sensitive or heat-sensitive recording material which contains as color former in its color-forming system at least one substituted tris-aminophenylmethane compound of the general formula ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, represent hydrogen, lower alkyl, benzyl or phenyl, and the ringsA,B,D and E, each independently of the other, are unsubstituted or substituted by halogen, nitro, trifluoromethyl, lower alkyl, lower alkoxy or lower alkoxycarbonyl.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: December 9, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4210591
    Abstract: An indolinospiropyrane compound of the formula ##STR1## wherein R.sub.1 represents alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl, phenyl or benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy,R.sub.2 represents hydrogen, alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkyl-carbonyloxy, or cycloalkyl or benzyl which is unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, orR.sub.1 and R.sub.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: July 1, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4202820
    Abstract: The present invention provides a pressure- or heat-sensitive recording material which contains in its color forming system at least one carbazolylmethane compound of the formula ##STR1## wherein Y is an amino-substituted phenyl radical of the formula ##STR2## or an indolyl radical of the formula ##STR3## in which formulae each of X.sub.1 and X.sub.2 is hydrogen, alkyl of at most 12 carbon atoms which is unsubstituted or substituted, cycloalkyl, phenyl, benzyl, substituted phenyl or substituted benzyl, or X.sub.1 and X.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered, heterocyclic radical, X.sub.3 is hydrogen, halogen, nitro, lower alkyl or lower alkoxy, each of R.sub.1 and Z.sub.1 is hydrogen, alkyl of not more than 12 carbon atoms which is unsubstituted or substituted; acyl of 1 to 12 carbon atoms, phenyl, benzyl, substituted phenyl or substituted benzyl, and Z.sub.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: May 13, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4191690
    Abstract: Substituted 3,6-diaminophthalides of the formula ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 independently represents alkyl of not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or represents cycloalkyl, benzyl, or benzyl which is substituted by halogen, lower alkyl or lower alkoxy, and R.sub.1 can also be hydrogen and R.sub.3 can also be phenyl, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, represent a 5- or 6-membered heterocyclic radical and the ring A is unsubstituted or substituted or contains a fused, unsubstituted or substituted benzene or heterocyclic ring.These compounds are suitable in particular for use as color formers in pressure-sensitive or heat-sensitive recording materials.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: March 4, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri
  • Patent number: 4154463
    Abstract: The present invention provides a pressure- or heat-sensitive recording material which contains in its color forming system at least one carbazolylmethane compound of the formula ##STR1## wherein Y is an amino-substituted phenyl radical of the formula ##STR2## OR AN INDOLYL RADICAL OF THE FORMULA ##STR3## IN WHICH FORMULAE EACH OF X.sub.1 and X.sub.2 is hydrogen, alkyl of at most 12 carbon atoms which is unsubstituted or substituted, cycloalkyl, phenyl, benzyl, substituted phenyl or substituted benzyl, or X.sub.1 and X.sub.2 together with the nitrogen atom to which they are attached represent a 5- or 6-membered, heterocyclic radical, X.sub.3 is hydrogen, halogen, nitro, lower alkyl or lower alkoxy, each of R.sub.1 and Z.sub.1 is hydrogen, alkyl of not more than 12 carbon atoms which is unsubstituted or substituted; acyl of 1 to 12 carbon atoms, phenyl, benzyl, substituted phenyl or substituted benzyl, and Z.sub.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: May 15, 1979
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Burri