Patents by Inventor Robert Stephen Davidson
Robert Stephen Davidson 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: 8952190Abstract: Compounds of formula (I): wherein Ar represents an, optionally substituted, aryl or heteroaryl group, R represents an, optionally substituted, aryl or heteroaryl group, an optionally substituted straight or branched chain C1.10-alkyl, R1 is H or methyl, X is an extender group, n is 0 or an integer between 1 and 12 inclusive, A is a polyol residue wherein the unsubstituted polyol from which the residue is derived has at least y OH groups, and y is an integer>1, can easily be prepared, and are useful as synergists in radiation curing.Type: GrantFiled: March 25, 2011Date of Patent: February 10, 2015Assignee: Sun Chemical B.V.Inventors: Robert Stephen Davidson, Shaun Lawrence Herlihy
-
Patent number: 8785515Abstract: Polycyclic aromatic compounds of formula (I) having at least two conjugated aromatic rings at least one of which has a substituent comprising a cyclic carbonate group can be used as sensitizers for cationic photoinitiators, especially iodonium compounds, and may also function as monomers in cationically initiated radiation curable compositions, especially coating compositions, such as printing inks and varnishes.Type: GrantFiled: May 9, 2008Date of Patent: July 22, 2014Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Robert Stephen Davidson
-
Publication number: 20130012611Abstract: Compounds of formula (I): wherein Ar represents an, optionally substituted, aryl or heteroaryl group, R represents an, optionally substituted, aryl or heteroaryl group, an optionally substituted straight or branched chain C1.10-alkyl, R1 is H or methyl, X is an extender group, n is 0 or an integer between 1 and 12 inclusive, A is a polyol residue wherein the unsubstituted polyol from which the residue is derived has at least y OH groups, and y is an integer>1, can easily be prepared, and are useful as synergists in radiation curing.Type: ApplicationFiled: March 25, 2011Publication date: January 10, 2013Inventors: Robert Stephen Davidson, Shaun Lawrence Herlihy
-
Publication number: 20100129563Abstract: Polycyclic aromatic compounds of formula (I) having at least two conjugated aromatic rings at least one of which has a substituent comprising a cyclic carbonate group can be used as sensitisers for cationic photoinitiators, especially iodonium compounds, and may also function as monomers in cationically initiated radiation curable compositions, especially coating compositions, such as printing inks and varnishes.Type: ApplicationFiled: May 9, 2008Publication date: May 27, 2010Applicant: Sun Chemical B.V.Inventors: Shaun Lawrence Herlihy, Robert Stephen Davidson
-
Patent number: 7671081Abstract: Compounds of formula (I): wherein the substituents are as defined herein.Type: GrantFiled: November 2, 2007Date of Patent: March 2, 2010Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Brian Rowatt, Robert Stephen Davidson
-
Patent number: 7612122Abstract: Compounds of formula (I): [where: the substituents R1 are individually selected from C1-C10 alkyl groups and optionally substituted benzyl groups; the substituents R2 are individually selected from alkyl groups or, together with the nitrogen atom to which they are attached, represent a nitrogen-containing heterocyclic group; Z is selected from C6-C10 arylene groups and groups of formula —(CHR3)n—, where R3 is hydrogen, hydroxy or a C1-C4 alkyl group, and n is 0 to 6; Y is carbonyl or —CH2—; Q is a residue of a mono- or poly-hydroxy compound; and x is 1 to 6; and esters thereof] are useful as multi-functional photoinitiators for use in coating compositions to be cured by radiant energy.Type: GrantFiled: November 9, 2005Date of Patent: November 3, 2009Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Brian Rowatt, Robert Stephen Davidson
-
Patent number: 7598401Abstract: Compounds of formula (I): [where: R1 is a direct bond, oxygen, a group >CH2, sulphur, a group >C?O, a group —(CH2)2— or a group —N—Ra, where Ra is hydrogen or alkyl; R3, R4, R5 and R6 are hydrogen or substituents ?; R8, R9, R10 and R11 are hydrogen, hydroxy or alkyl; or R9 and R11 are joined to form a fused ring system with the benzene rings to which they are attached; R7 is a direct bond, oxygen or a —CH2— group; p is 0 or 1; substituents ? are: alkyl, alkoxy, alkenyl, halogen, nitrile, hydroxyl, aryl, aralkyl, aryloxy, aralkyloxy, arylalkenyl, cycloalkyl, carboxy, carboxyalkoxy, alkoxycarbonyl, aryloxycarbonyl, alkylcarbonyloxy, alkanesulphonyl, arenesulphonyl, alkanoyl or arylcarbonyl; n is 1 to 12; R12 is hydrogen, methyl or ethyl; A is a group —[O(CHR13CHR14)a]y—, —[O(CH2)bCO]y—, or —[O(CH2)bCO](y?1)—[O(CHR13CHR14)a]—, where: one of R13 and R14 is hydrogen and the other is hydrogen, methyl or ethyl; a is 1 to 2; b is 4 to 5; Q is a residue of a polyhydroxy compound having from 2 to 6 hydroxy grType: GrantFiled: October 1, 2007Date of Patent: October 6, 2009Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Brian Rowatt, Robert Stephen Davidson
-
Patent number: 7514263Abstract: A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.Type: GrantFiled: April 2, 2001Date of Patent: April 7, 2009Assignee: 3M Innovative Properties CompanyInventors: James Michael Nelson, Robert Stephen Davidson, Jeffrey Jacob Cernohous, Michael John Annen, James Robert McNerney, Robert Wade Ferguson, Anthony Robert Maistrovich, James Alan Higgins
-
Publication number: 20090023829Abstract: Compounds of formula (I): [where: R1 is a direct bond, oxygen, a group >CH2, sulphur, a group >C?O, a group —(CH2)2— or a group —N—Ra, where Ra is hydrogen or alkyl; R3, R4, R5 and R6 are hydrogen or substituents ?; R8, R9, R10 and R11 are hydrogen, hydroxy or alkyl; or R9 and R11 are joined to form a fused ring system with the benzene rings to which they are attached; R7 is a direct bond, oxygen or a —CH2— group; p is 0 or 1; substituents ? are: alkyl, alkoxy, alkenyl, halogen, nitrile, hydroxyl, aryl, aralkyl, aryloxy, aralkyloxy, arylalkenyl, cycloalkyl, carboxy, carboxyalkoxy, alkoxycarbonyl, aryloxycarbonyl, alkylcarbonyloxy, alkanesulphonyl, arenesulphonyl, alkanoyl or arylcarbonyl; n is 1 to 12; R12 is hydrogen, methyl or ethyl; A is a group —[O(CHR13CHR14)a]y—, —[O(CH2)bCO]y—, or —[O(CH2)bCO](y-1)—[O(CHR13CHR14)a]—, where: one of R13 and R14 is hydrogen and the other is hydrogen, methyl or ethyl; a is 1 to 2; b is 4 to 5; Q is a residue of a polyhydroxy compound having from 2 to 6 hydroxy grType: ApplicationFiled: November 2, 2007Publication date: January 22, 2009Applicant: SUN CHEMICAL CORPORATIONInventors: Shaun Lawrence HERLIHY, Brian Rowatt, Robert Stephen Davidson
-
Patent number: 7452921Abstract: Compounds of formula (I) where: {R1 is methyl, ethyl, cycloalkyl or optionally substituted aryl; Z is arylene or a group of formula —(CHR4)n-, where R4 is hydrogen, hydroxy or alkyl, and n is a number from 0 to 6; Y is carbonyl or a —CH2— group; Q is a residue of a mono- or poly-hydroxyl compound having from I to 6 hydroxy groups; and x is a number from I to 6; and esters thereof} are useful as sensitizers for use in radiationcurable compositions.Type: GrantFiled: July 2, 2004Date of Patent: November 18, 2008Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Brian Rowett, Robert Stephen Davidson
-
Patent number: 7294723Abstract: Compounds of formula (I): [where: R1 is a direct bond, oxygen, a group >CH2, sulphur, a group >C?O, a group-(CH2)2— or a group-N—Ra, where Ra is hydrogen or alkyl; R3, R4, R5 and R6 are hydrogen or substituents?; R8, R9, R10 and R11 are hydrogen, hydroxy or alkyl; or R9 and R11 are joined to form a fused ring system with the benzene rings to which they are attached; R7 is a direct bond, oxygen or a —CH2-group; p is 0 or 1 ; substituents? are: alkyl, alkoxy, alkenyl, halogen, nitrile, hydroxyl, aryl, aralkyl, aryloxy, aralkyloxy, arylalkenyl, cycloalkyl, carboxy, carboxyalkoxy, alkoxycarbonyl, aryloxycarbonyl, alkylcarbonyloxy, alkanesulphonyl, arenesulphonyl, alkanoyl or arylcarbonyl; n is 1 to 12; R12 is hydrogen, methyl or ethyl; A is a group —[O(CHR13CHR14)a]y—, —[O(CH2)bCO]y-, or —[O(CH2)bCO](y-1)-[O(CHR13CHR14)a]—, where: one of R13 and R14 is hydrogen and the other is hydrogen, methyl or ethyl; a is 1 to 2 ; b is 4 to 5 ; Q is a residue of a polyhydroxy compound having from 2 to 6 hydroxy groups;Type: GrantFiled: December 10, 2003Date of Patent: November 13, 2007Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Brian Rowatt, Robert Stephen Davidson
-
Patent number: 7166647Abstract: Compounds of formula (I): {where n is a number from 1 to 6; R3 is hydrogen, methyl or ethyl; A represents a group of formula —[O(CHR2CHR1)a]y—, —[O(CH2)bCO]y—, or —[O(CH2)bCO](y?1)—[O(CHR2CHR1)a]— (where one of R1 and R2 is hydrogen and the other is hydrogen, methyl or ethyl); a is from 1 to 2; b is from 4 to 5; y is from 3 to 10; Q is a residue of a polyhydroxy compound having 2 to 6 hydroxy groups; and x is greater than 1 but no greater than the number of available hydroxyl groups in Q} and esters thereof are useful as photoinitiators for the preparation of energy-curable compositions, such as varnishes and printing inks.Type: GrantFiled: September 24, 2002Date of Patent: January 23, 2007Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Roger Edward Burrows, Robert Stephen Davidson
-
Patent number: 7101998Abstract: Compounds of formula (I): [in which: R1 represents a direct bond, an oxygen atom, a group >CH2, a sulphur atom, a group >C?O, a group —(CH2)2— or a group of formula —N—Ra, where Ra is hydrogen or an alkyl; R4, R5, R6 and R7 are each hydrogen or various groups or atoms; R8, R9, R10 and R11 are each hydrogen, hydroxy, or alkyl; or R9 and R11 form a fused ring system with the benzene rings to which they are attached; R12 is a direct bond, oxygen atom or methylene; and X? is an anion; and esters thereof] are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.Type: GrantFiled: February 26, 2003Date of Patent: September 5, 2006Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Robert Stephen Davidson, Brian Rowatt
-
Publication number: 20030035756Abstract: A system is provided wherein a plug flow reactor is used to make combinatorial libraries of materials. Examples of plug flow reactors include stirred tube reactors, extruders, and static mixers.Type: ApplicationFiled: April 2, 2001Publication date: February 20, 2003Applicant: 3M Innovative Properties CompanyInventors: James Michael Nelson, Robert Stephen Davidson, Jeffrey Jacob Cernohous, Michael John Annen, James Robert McNerney, Robert Wade Ferguson, Anthony Robert Maistrovich, James Alan Higgins
-
Patent number: 6296986Abstract: A multifunctional photoinitiator is obtainable as the reaction product of a multifunctional core material containing two or more reactive groups and a photoinitiator or a derivative thereof. The photoinitiator or its derivative has a reactive group capable of reacting with the reactive groups of the multifunctional core.Type: GrantFiled: November 10, 1998Date of Patent: October 2, 2001Assignee: Coates Brothers PLCInventors: Derek Ronald Illsley, Aylvin Angelo Dias, Robert Stephen Davidson, Roger Edward Burrows
-
Patent number: 5905164Abstract: Amine compounds of general formula (I), ##STR1## wherein: each R.sup.1 independently represents an alkyl group; each R.sup.2 independently represents an alkyl group; each group X independently represents a polyalkylene polyol moiety wherein hydroxyl groups of the polyol moiety are optionally alkylated but not including a group X which includes an ethyleneoxy or di(ethyleneoxy) moiety; n and m independently represent 1, 2 or 3; and each Q is independently selected from hydrogen or halogen atoms, and alkyl, acyl, nitro, cyano, alkoxy, hydroxy, amino, alkylamino, sulphinyl, alkylsulphinyl, sulphonyl, alkylsulphonyl, sulphonate, amido, alkylamido, alkoxycarbonyl, halocarbonyl and haloalkyl groups, processes for their preparation and intermediate compounds are described. Compounds of general formula (I) are useful as radiation curing agents in polymerisation processes.Type: GrantFiled: February 27, 1998Date of Patent: May 18, 1999Assignee: Lambson Fine Chemicals LimitedInventors: David George Anderson, Robert Stephen Davidson, Neil Richard Cullum, Elizabeth Sands
-
Patent number: 5811526Abstract: A time-resolving luminescence binding assay involves a metal-labelled binding partner comprising a luminescent transition metal complex covalently attached to a binding partner such as an antigen or antibody. Ruthenim, iridium, osmium, and chromium luminescent complexes are described.Type: GrantFiled: May 23, 1995Date of Patent: September 22, 1998Assignee: Alusuisse Holdings A.G.Inventor: Robert Stephen Davidson