Patents by Inventor James A. Bonham

James A. Bonham 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: 8846981
    Abstract: Disclosed is a ketal having the formula: wherein R? and R? independently are an alkyl group having from 8 to about 20 carbon atoms; m and n independently are an integer of from 1 to about 200; and r and s independently are an integer of from 1 to 3; and the method for preparing the ketal by transketalization using 1,1-dimethoxycyclohexane or 1,1-diethoxycyclohexane with an (alkoxyphenoxy)ethanol type of surfactant. The ketal is at least partially soluble in water.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 30, 2014
    Assignee: Southern Lithoplate, Inc.
    Inventors: James A. Bonham, Stephan J. W. Platzer, Edward A. Casson, III
  • Patent number: 8632943
    Abstract: An infrared sensitive, positive-working, image forming composition and element are disclosed. The image forming composition comprises a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane, an infrared absorbing dye having a maximum absorption peak in the range of from about 700 nm to about 1100 nm, and a novolac polymer. The composition is applied and dried on a planar, hydrophilic substrate to form an image forming element, in particular, a planographic printing plate. Upon imagewise exposure to a near-infrared radiation source, the infrared dye absorbs light in the exposed areas and converts it to heat, which causes a disruption in the matrix of the image forming composition. Upon development with an aqueous alkaline developer, the exposed areas are removed while the nonexposed areas remain, thus forming a positive image.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 21, 2014
    Assignee: Southern Lithoplate, Inc.
    Inventors: Stephan J. W. Platzer, James A. Bonham, Kimberly R. Kukla, Richard C. Wax, Teresa Baker, Ella Ross Ryan
  • Publication number: 20130196267
    Abstract: An infrared sensitive, positive-working, image forming composition and element are disclosed. The image forming composition comprises a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane, an infrared absorbing dye having a maximum absorption peak in the range of from about 700 nm to about 1100 nm, and a novolac polymer. The composition is applied and dried on a planar, hydrophilic substrate to form an image forming element, in particular, a planographic printing plate. Upon imagewise exposure to a near-infrared radiation source, the infrared dye absorbs light in the exposed areas and converts it to heat, which causes a disruption in the matrix of the image forming composition. Upon development with an aqueous alkaline developer, the exposed areas are removed while the nonexposed areas remain, thus forming a positive image.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Inventors: Stephan J. W. Platzer, James A. Bonham, Kimberly R. Kukla, Richard C. Wax, Teresa Baker, Ella Ross Ryan
  • Publication number: 20130197274
    Abstract: Disclosed is a ketal having the formula: wherein R? and R? independently are an alkyl group having from 8 to about 20 carbon atoms; m and n independently are an integer of from 1 to about 200; and r and s independently are an integer of from 1 to 3; and the method for preparing the ketal by transketalization using 1,1-dimethoxycyclohexane or 1,1-diethoxycyclohexane with an (alkoxyphenoxy)ethanol type of surfactant. The ketal is at least partially soluble in water.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Inventors: James A. Bonham, Stephan J. W. Platzer, Edward A. Casson, III
  • Patent number: 6132322
    Abstract: A golfer's putting aid device. The device has an elongated straight pendulum bar and a strap with a pad section. The strap is connected to the bar by a bar guide. The looped flexible strap extends around the neck of a user as well as the depending pendulum bar which rests against the users chest. The pad section is made of a soft foam pad on the strap rest against the back of the neck while an accessible adjustment buckle permits the strap's loop length size to be varied. In use, both straightened arms extends outwardly from the bar away from the chest while the user's hand grasp the handle of the putter and swing the putter in a pendulum type motion.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: October 17, 2000
    Inventor: Ryan James Bonham
  • Patent number: 5723513
    Abstract: Radiation-sensitive organo-halogen compounds that have a photo-labile halomethyl-1,3,5-triazine moiety and a polymeric moiety within the same molecule. The compounds of this invention are comprised of a polymeric moiety having attached or incorporated within its structure at least one 1,3,5-triazine nucleus, said triazine nucleus having at least one halomethyl substituent attached to a carbon atom of the triazine nucleus. These compounds are capable of being stimulated by actinic radiation at wavelengths of from about 250 to about 900 nanometers to generate free radicals and/or acids. The compounds of this invention are useful as photoinitiators in free radical polymerization reactions, oxidation-reduction reactions, or reactions sensitive to acid, and they also exhibit the capability to crosslink upon exposure to light.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: March 3, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mitchell A. Rossman, Richard J. Grant
  • Patent number: 5527655
    Abstract: Radiation-sensitive polymeric adducts of (1) a sulfonated polyester resin having a plurality of sulfonate groups, (2) a diazonium resin having a plurality of diazonium groups, and (3) a salt of quaternary ammonium or quaternary phosphonium. This invention also provides a radiation-sensitive article comprising a substrate bearing a coating containing a radiation-sensitive adduct.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: June 18, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Leonard J. Stulc, Richard J. Kuo, Kimberly R. Kukla
  • Patent number: 5496504
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one polymerizable moiety within one molecule is provided. The compounds of this invention have at least one halomethyl substituent attached to a carbon atom of the triazine moiety and at least one polymerizable monomeric moiety attached to another atom of the triazine moiety. The compounds of this invention can be used to prepare polymers having 1,3,5-triazine substituents attached thereto. The compounds of this invention are good photoinitiators, and compositions containing them can be used in printing, duplicating, copying, and other imaging systems. The compounds of this invention are capable of stimulation by actinic radiation at a wavelength of about 250 to 900 nanometers to generate free radicals.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: March 5, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mitchell A. Rossman, Richard J. Grant
  • Patent number: 5484919
    Abstract: A chromophore-substituted halomethyl-1,3,5-triazine photopolymerization initiator. The initiator preferably comprises three moleties--a residue of a hydroxyl-substituted, chromophore-substituted, halomethyl-1,3,5-triazine compound; a residue of a diisocyanate compound having isocyanato groups of dissimilar reactivities; a residue of a hydroxyl-substituted compound, e.g., the residue of a polyoxyethylene alkylphenol.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: January 16, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James A. Bonham
  • Patent number: 5387682
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one polymerizable moiety within one molecule. The compounds of this invention have at least one halomethyl substituent attached to a carbon atom of the triazine moiety and at least one polymerizable monomeric moiety attached to another atom of the triazine moiety. The compounds of this invention can be used to prepare polymers having 1,3,5-triazine substituents attached thereto. The compounds of this invention are good photoinitiators, and compositions containing them can be used in printing, duplicating, copying, and other imaging systems. The compounds of this invention are capable of stimulation by actinic radiation at a wavelength of about 250 to 900 nanometers to generate free radicals.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: February 7, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mithcell A. Rossman, Richard J. Grant
  • Patent number: 5298361
    Abstract: A light-sensitive article comprising (a) at least one layer of photopolymerizable material containing a polymerizable compound having at least one ethylenically unsaturated group, and a chromophore-substituted halomethyl-1,3,5-triazine photopolymerization initiator; (b) at least one layer of thermoplastic resin in contact with the layer of photopolymerizable material, said chromophore-substituted 1,3,5-triazine photopolymerization initiator capable of resisting migration to said layer of thermoplastic resin. The invention eliminates the problem of discoloration of the background resulting from excessive migration of the photoinitiator from the layer of photopolymerizable material to the contiguous layer of resin. The invention is especially useful in the preparation of surprint color proofs.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: March 29, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James A. Bonham
  • Patent number: 5286601
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one amine-containing moiety within one molecule. The compounds serve the dual purpose of photoinitiation and polymerization acceleration, thereby eliminating the need for the use of two separate compounds. The compounds of this invention are good photoinitiators, and compositions containing them are useful in printing, duplicating, copying, and other imaging systems.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: February 15, 1994
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Mitchell A. Rossman, James A. Bonham
  • Patent number: 5187045
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one sensitizer moiety within one molecule. The compounds of this invention are good photoinitiators, and compositions containing them can be used in printing, duplicating, copying, and other imaging systems.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: February 16, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mitchell A. Rossman
  • Patent number: 5153323
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,2,5-triazine moiety and at least one photoinitator moiety within one molecule. The compounds of this invention are good photoinitiators, and compositions containing them can be used in printing, duplicating, copying, and other imaging systems. The compounds of this invention eliminate the need for a combination of photoinitiators in a photocurable or photopolymerizable composition.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: October 6, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mitchell A. Rossman, James A. Bonham
  • Patent number: 5116977
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one amine-containing moiety within one molecule. The compounds serve the dual purpose of photoinitiation and polymerization acceleration, thereby eliminating the need for the use of two separate compounds. The compounds of this invention are good photoinitiators, and compositions containing them are useful in printing, duplicating, copying, and other imaging systems.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: May 26, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mitchel A. Rossman, James A. Bonham
  • Patent number: 5034526
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one sensitizer moiety within one molecule. The compounds of this invention are good photoinitiators, and compositions containing them can be used in printing, duplicating, copying, and other imaging systems.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: July 23, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mitchell A. Rossman
  • Patent number: 4985562
    Abstract: Radiation-sensitive organo-halogen compounds having a photo-labile halomethyl-1,3,5-triazine moiety and at least one amine-containing moiety within one molecule. The compounds serve the dual purpose of photoinitiation and polymerization acceleration, thereby eliminating the need for the use of two separate compounds. The compounds of this invention are good photoinitiators, and compositions containing them are useful in printing, duplicating, copying, and other imaging systems.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: January 15, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mitchell A. Rossman, James A. Bonham
  • Patent number: 3987037
    Abstract: Chromophore-substituted vinyl-halomethyl-s-triazine compounds are provided capable of free-radical generation upon excitation with radiation having a wavelength of from about 330 to about 700 millimicrons.
    Type: Grant
    Filed: September 3, 1971
    Date of Patent: October 19, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Panayotis C. Petrellis
  • Patent number: 3954475
    Abstract: Chromophore-substituted vinyl-halomethyl-s-triazine compounds are provided capable of free-radical generation upon excitation with radiation having a wavelength of from about 330 to about 700 millimicrons.
    Type: Grant
    Filed: September 10, 1973
    Date of Patent: May 4, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Panayotis C. Petrellis