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).
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Patent number: 8846981Abstract: 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: GrantFiled: January 30, 2012Date of Patent: September 30, 2014Assignee: Southern Lithoplate, Inc.Inventors: James A. Bonham, Stephan J. W. Platzer, Edward A. Casson, III
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Patent number: 8632943Abstract: 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: GrantFiled: January 30, 2012Date of Patent: January 21, 2014Assignee: Southern Lithoplate, Inc.Inventors: Stephan J. W. Platzer, James A. Bonham, Kimberly R. Kukla, Richard C. Wax, Teresa Baker, Ella Ross Ryan
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Publication number: 20130196267Abstract: 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: ApplicationFiled: January 30, 2012Publication date: August 1, 2013Inventors: Stephan J. W. Platzer, James A. Bonham, Kimberly R. Kukla, Richard C. Wax, Teresa Baker, Ella Ross Ryan
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Publication number: 20130197274Abstract: 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: ApplicationFiled: January 30, 2012Publication date: August 1, 2013Inventors: James A. Bonham, Stephan J. W. Platzer, Edward A. Casson, III
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Patent number: 6132322Abstract: 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: GrantFiled: August 19, 1999Date of Patent: October 17, 2000Inventor: Ryan James Bonham
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Patent number: 5723513Abstract: 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: GrantFiled: March 8, 1996Date of Patent: March 3, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Mitchell A. Rossman, Richard J. Grant
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Patent number: 5527655Abstract: 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: GrantFiled: September 28, 1994Date of Patent: June 18, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Leonard J. Stulc, Richard J. Kuo, Kimberly R. Kukla
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Patent number: 5496504Abstract: 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: GrantFiled: November 28, 1994Date of Patent: March 5, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Mitchell A. Rossman, Richard J. Grant
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Patent number: 5484919Abstract: 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: GrantFiled: February 1, 1994Date of Patent: January 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: James A. Bonham
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Patent number: 5387682Abstract: 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: GrantFiled: April 19, 1993Date of Patent: February 7, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Mithcell A. Rossman, Richard J. Grant
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Patent number: 5298361Abstract: 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: GrantFiled: August 30, 1991Date of Patent: March 29, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: James A. Bonham
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Patent number: 5286601Abstract: 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: GrantFiled: May 20, 1992Date of Patent: February 15, 1994Assignee: Minnesota Mining and Manufacturing Co.Inventors: Mitchell A. Rossman, James A. Bonham
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Patent number: 5187045Abstract: 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: GrantFiled: June 4, 1991Date of Patent: February 16, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Mitchell A. Rossman
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Patent number: 5153323Abstract: 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: GrantFiled: March 28, 1991Date of Patent: October 6, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mitchell A. Rossman, James A. Bonham
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Patent number: 5116977Abstract: 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: GrantFiled: January 14, 1991Date of Patent: May 26, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mitchel A. Rossman, James A. Bonham
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Patent number: 5034526Abstract: 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: GrantFiled: April 11, 1990Date of Patent: July 23, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Mitchell A. Rossman
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Patent number: 4985562Abstract: 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: GrantFiled: September 7, 1988Date of Patent: January 15, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mitchell A. Rossman, James A. Bonham
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Patent number: 3987037Abstract: 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: GrantFiled: September 3, 1971Date of Patent: October 19, 1976Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Panayotis C. Petrellis
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Patent number: 3954475Abstract: 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: GrantFiled: September 10, 1973Date of Patent: May 4, 1976Assignee: Minnesota Mining and Manufacturing CompanyInventors: James A. Bonham, Panayotis C. Petrellis