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).
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Patent number: 5244860Abstract: 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: GrantFiled: May 20, 1991Date of Patent: September 14, 1993Assignee: Ciba-Geigy CorporationInventors: Rene Graf, Werner Mischler, Peter Burri
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Patent number: 4369326Abstract: 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: GrantFiled: October 2, 1980Date of Patent: January 18, 1983Assignee: Ciba-Geigy CorporationInventors: Jean C. Petitpierre, Peter Burri
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Patent number: 4355823Abstract: 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: GrantFiled: July 24, 1980Date of Patent: October 26, 1982Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4343944Abstract: 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: GrantFiled: December 5, 1980Date of Patent: August 10, 1982Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4339385Abstract: 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: GrantFiled: January 4, 1980Date of Patent: July 13, 1982Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4291902Abstract: 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: GrantFiled: September 17, 1979Date of Patent: September 29, 1981Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4275005Abstract: 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: GrantFiled: May 27, 1980Date of Patent: June 23, 1981Assignee: Ciba-Geigy CorporationInventors: Jean C. Petitpierre, Peter Burri
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Patent number: 4254032Abstract: 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: GrantFiled: April 12, 1979Date of Patent: March 3, 1981Assignee: Ciba-Geigy CorporationInventors: Jean C. Petitpierre, Peter Burri
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Patent number: 4238130Abstract: 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: GrantFiled: June 1, 1978Date of Patent: December 9, 1980Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4210591Abstract: 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: GrantFiled: January 21, 1977Date of Patent: July 1, 1980Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4202820Abstract: 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: GrantFiled: January 31, 1979Date of Patent: May 13, 1980Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4191690Abstract: 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: GrantFiled: September 15, 1978Date of Patent: March 4, 1980Assignee: Ciba-Geigy CorporationInventor: Peter Burri
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Patent number: 4154463Abstract: 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: GrantFiled: October 17, 1977Date of Patent: May 15, 1979Assignee: Ciba-Geigy CorporationInventor: Peter Burri