Patents Represented by Attorney Willard G. Montgomery
  • Patent number: 5166024
    Abstract: The present invention relates to a photoelectrographic element having a conductive layer in electrical contact with an acid photogenerating layer which is free of photopolymerizable materials and contains an electrically insulating binder and acid photogenerator. A pigment which absorbs near-infrared radiation is included in the photoelectrographic element so that the element, when used in electrostatic copying, can be exposed with near-infrared radiation. A method for forming images with this element is also disclosed.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: November 24, 1992
    Assignee: Eastman Kodak Company
    Inventors: Douglas E. Bugner, William Mey, G. Gary Fulmer
  • Patent number: 5162188
    Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising amide-containing quaternary ammonium salts having the structure: ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.6 alkyl or aryl, R.sub.2 and R.sub.3, which can be the same or different, are alkyl or aryl, R.sub.4 is alkyl, aryl or aralkyl, R.sub.5 is hydrogen or alkyl, X is --CH.sub.2).sub.n, Z.sup..crclbar. is an anion and n is an integer from 2 to 6.Such amide-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: November 10, 1992
    Assignee: Eastman Kodak Company
    Inventors: John W. Wilson, Alexandra D. Bermel
  • Patent number: 5156915
    Abstract: The invention provides rolls, belts and other biasable members having at least one layer or coating of an elastomeric resilient crosslinked polyurethane formed by reacting (a) a polyisocyanate prepolymer comprising the reaction product of a saturated aliphatic polyisocyanate, a saturated cycloaliphatic polyisocyanate, or an aromatic polyisocyanate and a polyol free of aliphatic unsaturation, preferably a polyalkylene glyocl in which the alkylene group contains 2 to 8 carbon atoms, and (b) a hardening mixture comprising a polyol of (a) or a diamine free of aliphatic unsaturation, or a mixture thereof and, as a conductivity control agent, from 0.001 to 5.0 weight percent, based on the total weight of (b), of a complex of ethylene glyocl or an oligoethylene glyocl selected from the group consisting of di-, tri- and tetraethylene glyocl with an ionizable zinc halide salt consisting of zinc chloride in the presence of an organometallic catalyst in which bismuth constitutes the metallic component thereof.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: October 20, 1992
    Assignee: Eastman Kodak Company
    Inventors: John C. Wilson, William B. Vreeland
  • Patent number: 5156937
    Abstract: The present invention relates to a polymer composition comprising a high molecular weight polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 30,000 to 100,000 and a low molecular weight polyester in linear, amorphous form defined by the formula: ##STR1## said low molecular weight polyester having a glass transition temperature of 55.degree.-65.degree. C., wherein:R is a hydrocarbon radical having 2 to 5 carbons andm is a number which gives the low molecular weight polyester a number average molecular weight of 500 to 2000.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: October 20, 1992
    Assignee: Eastman Kodak Company
    Inventors: Peter S. Alexandrovich, John E. Derimiggio, Joseph A. Pavlisko
  • Patent number: 5147749
    Abstract: New electrostatographic toners and developers are provided containing new charge-control agents comprising N-substituted quinolinium salts having the structure: ##STR1## wherein R is a straight or branched chain alkyl group having from 1 to 5 carbon atoms, aralkyl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, R' and R", which are the same or different, represent hdyrogen or a straight or branched chain alkyl or alkoxy group having from 1 to 24 carbon atoms, aralkyl or alkaryl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, unsubstituted aryl having from 6 to 14 carbon atoms or aryl having from 6 to 14 carbon atoms substituted with one or more nitro, alkoxy or halo groups and X is hydrogen, chlorine, bromine, fluorine or iodine.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: September 15, 1992
    Assignee: Eastman Kodak Company
    Inventors: Peter S. Alexandrovich, John C. Wilson
  • Patent number: 5147717
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene-co-xylylene terephthalate-co-malonate-co-sodioiminobis(sulfonylbenzoate));(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) a compound or a mixture of compounds having the following general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group having a carbon number of 1 to 4 or a phenyl group, and n is an integer of 1 to 10; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: September 15, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5144036
    Abstract: New N-substituted quinolinium salts are provided having advantageous utility as charge agents in electrostatographic toners and developers. The salts have the structure: ##STR1## wherein R is a straight or branched chain alkyl group having from 1 to 5 carbon atoms, aralkyl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, R' and R", which are the same or different, represent hydrogen or a straight or branched chain alkyl or alkoxy group having from 1 to 24 carbon atoms, aralkyl or alkaryl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, unsubstituted aryl having from 6 to 14 carbon atoms or aryl having from 6 to 14 carbon atoms substituted with one or more nitro, alkoxy or halo groups and X is hydrogen, chlorine, bromine, fluorine or iodine.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: September 1, 1992
    Assignee: Eastman Kodak Company
    Inventors: Peter S. Alexandrovich, John C. Wilson
  • Patent number: 5139867
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene-co-oxydiethylene isophthalate-co-sodio-sulfobenzenedicarboxylate);(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) a compound or a mixture of compounds having the general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group having a carbon number of 1 to 4 or a phenyl group, and n is an integer of 1 to 10; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: August 18, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5133992
    Abstract: A method of preparing polymer particles having narrow size distribution in a suspension process employing a solid colloidal stabilizing agent. The solid colloidal stabilizer is a copolymer of about 25 to about 80% by weight, based on total monomer weight, of an addition polymerizable nonionic oleophilic monomer, about 5 to about 45%, by weight, of an addition polymerizable nonionic hydrophilic monomer, about 1 to about 50% of an addition polymerizable ionic monomer, and 0 to about 20 percent, by weight, of a crosslinking monomer having at least two addition polymerizable groups. Also disclosed are polymeric particles comprising a core polymer covered by a layer of the smaller copolymer stabilizer particles and electrostatographic toners comprising such polymeric particles.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: July 28, 1992
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Zona R. Pierce, Donna A. DiPrima
  • Patent number: 5126195
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene isophthalate-co-sodiosulfobenzenedicarboxylate);(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) nonylphenoxypolyglycidol; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: June 30, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5126194
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene-co-oxydiethylene isophthalate-co-sodio-sulfobenzenedicarboxylate);(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) nonylphenoxypolyglycidol; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: June 30, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5126193
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene isophthalate-co-sodiosulfobenzenedicarboxylate);(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) a compound or a mixture of compounds having the general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group having a carbon number of 1 to 4 or a phenyl group, and n is an integer of 1 to 10; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: June 30, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5126225
    Abstract: New electrostatographic toners and developers are provided containing novel charge control agents comprising novel ether-containing quaternary ammonium salts having the structure: ##STR1## wherein R.sub.1 is a alkyl or aryl, R.sub.2 and R.sub.3, which can be the same or different, are alkyl or aryl, R.sub.4 is alkyl, aryl or aralkyl, X is ##STR2## Z.sup..crclbar. is an anion and n is an integer from 2 to 6. Such ether-containing quaternary ammonium salts also cause toner particles containing them to display lower fusing temperatures and improved paper adhesion indexes.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: June 30, 1992
    Assignee: Eastman Kodak Company
    Inventors: John W. Wilson, Alexandra D. Bermel
  • Patent number: 5108859
    Abstract: A photoelectrographic element comprising a conductive layer in electrical contact with an acid photogenerating layer which is (a) free of photopolymerizable materials and (b) comprises an electrically insulating binder and an acid photogenerator is disclosed in which the binder comprises a polymer having as a repeating unit thereof a moiety selected from the group consisting of: ##STR1## wherein R represents an alkylene group having 2, 4 or 6 carbon atoms and X represents an aromatic radical. A method of forming images with the element also is disclosed.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: April 28, 1992
    Assignee: Eastman Kodak Company
    Inventors: Douglas E. Bugner, Louis J. Sorriero, Sherry L. Marlowe
  • Patent number: 5106714
    Abstract: Disclosed is an interdispersed two-phase ferrite composite which comprises about 0.1 mole to about 1.0 mole of a spinel phase having the general formula MFe.sub.2 O.sub.4 where M is at least one element that forms a spinel ferrite and is selected from the group consisting of cobalt, manganese, iron and mixtures thereof, to about 2.5 moles of a magnetoplumbite phase having the general formula PO.6Fe.sub.2 O.sub.3, where P is selected from the group consisting of stontium, barium, calcium, lead and mixtures thereof.Also disclosed are carrier particles formed from magnetized particles of the composite which optionally can be polymerically coated, an electrostatic two-component dry developer composition comprising charged toner particles mixed with oppositely charged carrier particles formed from magnetized, and optionally polymerically coated, particles of the composite, and a method of developing an electrostastic image by contacting the image with a two-component dry developer composition described above.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: April 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Bijay S. Saha, Alec N. Mutz, Robert E. Zeman
  • Patent number: 5104761
    Abstract: Disclosed is an interdispersed three-phase ferrite composite which comprises from about 0.1 mole to about 1.0 mole of a spinel phase having the general formula MFe.sub.2 O.sub.4 where M is at least one element that forms a spinel ferrite and is selected from the group consisting of cobalt, manganese, iron and mixtures thereof, to about 2.5 moles of a magnetoplumbite phase having the general formula PO.6Fe.sub.2 O.sub.3 where P is selected from the group consisting of strontium, barium, calcium, lead and mixtures thereof and, as a third phase, from about 0.02 to about 2.0 percent by weight, based on the combined weight of the spinel phase and the magnetoplumbite phase, of TiO.sub.2 or SiO.sub.2.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: April 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: Bijay S. Saha, Alec N. Mutz, Robert E. Zeman
  • Patent number: 5084338
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene-co-xylylene terephthalate-co-malonate-co-sodioiminobis(sulfonylbenzoate));(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) nonylphenoxypolyglycidol; and(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: January 28, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5084340
    Abstract: Transparent image-recording elements that contain ink-receptive layers that can be imaged by the application of liquid ink dots. The ink-receptive layers contain a combination of:(i) a vinyl pyrrolidone;(ii) particles of a polyester, namely a poly(cyclohexylenedimethylene-co-oxydiethylene isophthalate-co-sodio-sulfobenzenedicarboxylate);(iii) a homopolymer or a copolymer of an alkylene oxide containing from 2 to 6 carbon atoms;(iv) a polyvinyl alcohol;(v) a fluorocarbon surfactant of the formula:CF.sub.3 (Ch.sub.2).sub.m CH.sub.2 CH.sub.2 O--CH.sub.2 CH.sub.2 O).sub.n Rwhere m is an integer of 2 through 10, n is an integer of 1 through 18 and R is hydrogen or alkyl of 1 through 10 carbon atoms;(vi) inert particles.A printing method which employs the transparent image-recording elements also is described.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: January 28, 1992
    Assignee: Eastman Kodak Company
    Inventor: William A. Light
  • Patent number: 5075190
    Abstract: New electrostatographic toners and developers are provided containing new charge-control agents comprising N-substituted pyridinium salts having the ##STR1## wherein R is a straight or branched chain alkyl group having from 1 to 24 carbon atoms, aralkyl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, R.sup.1 is hydrogen or a straight or branched chain alkyl or alkoxy group having from 1 to 24 carbon atoms, aralkyl or alkaryl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, unsubstituted aryl having from 6 to 14 carbon atoms or aryl having from 6 to 14 carbon atoms substituted with one or more nitro, alkoxy or halo groups and X is hydrogen, chlorine, bromine, fluorine or iodine.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: December 24, 1991
    Assignee: Eastman Kodak Company
    Inventors: Peter S. Alexandrovich, Alexandra D. Bermel, Zona R. Pierce, John C. Wilson
  • Patent number: 5070203
    Abstract: New N,N'-substitutedbis(pyridinium) salts are provided having advantageous utility as charge agents in electrostatographic toners and developers. The salts have the structure: ##STR1## wherein R is alkylene having from 1 to 20 carbon atoms or arylenedialkylene wherein each alkylene moiety has 1 to 6 carbon atoms and the arylene moiety has from 6 to 14 carbon atoms, R' and R", which are the same or different, represent hydrogen, a straight or branched chain alkyl or alkoxy group having from 1 to 24 carbon atoms, aralkyl or alkaryl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, aryl having 6 to 14 carbon atoms which is unsubstituted or aryl having 6 to 14 carbon atoms which is substituted with one or more nitro, alkoxy or halo groups and X and X', which are the same or different, are chlorine, bromine, fluorine or iodine.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: December 3, 1991
    Assignee: Eastman Kodak Company
    Inventors: John C. Wilson, Peter S. Alexandrovich