Patents Assigned to First Chemical Corporation
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Publication number: 20030083443Abstract: Stabilized pre-promoted unsaturated polymer resin systems that include a tertiary aromatic amine cure promoter. The stabilized curable resins systems can include a vinyl ester resin.Type: ApplicationFiled: July 17, 2002Publication date: May 1, 2003Applicant: First Chemical CorporationInventors: John Gabriel Santobianco, Robson F. Storey, Rajamani Nagarajan
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Patent number: 6369124Abstract: Aliphatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.Type: GrantFiled: July 7, 1999Date of Patent: April 9, 2002Assignees: First Chemical Corporation, University of Southern MississippiInventors: Charles E. Hoyle, Shan Christopher Clark, E. Sonny Jönsson
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Publication number: 20020019453Abstract: Aliphatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.Type: ApplicationFiled: October 8, 2001Publication date: February 14, 2002Applicant: First Chemical CorporationInventors: Charles E. Hoyle, Shan Christopher Clark, E. Sonny Jonsson
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Patent number: 6287749Abstract: Biradical initiators and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.Type: GrantFiled: May 4, 1998Date of Patent: September 11, 2001Assignees: First Chemical Corporation, Univ. of Southern MississippiInventors: Rajamani Nagarajan, Joseph Stanton Bowers, Jr., Charles E. Hoyle, E. Sonny Jönsson, John R. I. Eubanks
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Patent number: 6258894Abstract: Methods of promoting the cure of unsaturated polymer resins with a peroxide initiator by including as a promotor N-alkyl-N-(2-hydroxyalkyl)-p-toluidines. The use of the tertiary aromatic amines as a promotor provides a fast cure at a wide range of temperatures. Polymerizable compositions and methods of applying the same to a surface are also described.Type: GrantFiled: October 27, 1997Date of Patent: July 10, 2001Assignee: First Chemical CorporationInventors: John Gabriel Santobianco, Carey Cecil Geiger, Joseph Stanton Bowers, Jr.
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Patent number: 6150431Abstract: Aromatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.Type: GrantFiled: April 29, 1999Date of Patent: November 21, 2000Assignees: First Chemical Corporation, Univ. of Southern MississippiInventors: Christopher W. Miller, Charles E. Hoyle, E. Sonny Jonsson
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Patent number: 6140385Abstract: Novel substituted diaryl ketones, photopolymerization compositions including the compounds, and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with ultraviolet light using conventional techniques and radiation sources to give greatly improved cure speeds. The compounds of the invention also show a significantly elevated level of reactivity at a narrow wavelength band, with a peak emission wavelength at or near 308 nm. Because of the increased level of activity, the photoinitiator can be used in considerably lower amounts.Type: GrantFiled: September 30, 1998Date of Patent: October 31, 2000Assignee: First Chemical CorporationInventors: Joseph Stanton Bowers, Jr., Rajamani Nagarajan, Charles Uriah Pittman, Jr., E. Sonny Jonsson
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Patent number: 6114470Abstract: Methods of promoting the cure of unsaturated polymer resins with a peroxide initiator by including as a promotor N-alkyl-N-(2-hydroxyalkyl)-p-toluidines. The use of the tertiary aromatic amines as a promotor provides a fast cure at a wide range of temperatures. Polymerizable compositions and methods of applying the same to a surface are also described.Type: GrantFiled: September 15, 1997Date of Patent: September 5, 2000Assignee: First Chemical CorporationInventors: John Gabriel Santobianco, Cary Cecil Geiger, Joseph Stanton Bowers, Jr.
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Patent number: 6025408Abstract: Novel thioxanthone derivatives and mixtures thereof and methods of making and using the same are disclosed. The novel thioxanthone derivatives can be liquid at room temperature and display highly active photoinitiation and photopolymerization properties.Type: GrantFiled: March 27, 1997Date of Patent: February 15, 2000Assignee: First Chemical CorporationInventors: Eric Lee Williams, Ruicheng Ran, Charles Uriah Pittman, Jr., Joseph Stanton Bowers, Jr., August John Muller
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Patent number: 6018078Abstract: N-nitrosohydroxylamine compounds exhibiting minimal or no degradation are disclosed. The N-nitrosohydroxylamines can be stabilized in the presence of a compound capable of removing water from the environment.Type: GrantFiled: June 23, 1999Date of Patent: January 25, 2000Assignee: First Chemical CorporationInventors: Darrell V. Harris, Paul J. Roman, Jr., Zhihong Wu, Earl G. Adams, Eric L. Williams
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Patent number: 5939581Abstract: Processes for preparing aromatic carboxylic acids. Cinnamaldehyde is hydrogenated to produce a mixture of hydrogenation products, namely, hydrocinnamaldehyde and hydrocinnamic alcohol. The mixture is then oxidized using a suitable oxidizing agent to substantially completely convert both hydrocinnamaldehyde and hydrocinnamic alcohol to hydrocinnamic acid.Type: GrantFiled: August 20, 1997Date of Patent: August 17, 1999Assignee: First Chemical CorporationInventors: August John Muller, Joseph Stanton Bowers, Jr., John Robert Ira Eubanks, Carey Cecil Geiger, John Gabriel Santobianco
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Patent number: 5916984Abstract: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.Type: GrantFiled: August 25, 1997Date of Patent: June 29, 1999Assignee: First Chemical CorporationInventors: Amy Lisa Bearson, John Robert Ira Eubanks, Alan Daniel Farmer, Franklin Dewitt Ford, Diana Boney Haydel, August John Muller
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Patent number: 5907046Abstract: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.Type: GrantFiled: August 25, 1997Date of Patent: May 25, 1999Assignee: First Chemical CorporationInventors: Amy Lisa Bearson, John Robert Ira Eubanks, Alan Daniel Farmer, Franklin Dewitt Ford, Diana Boney Haydel, August John Muller
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Patent number: 5712401Abstract: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.Type: GrantFiled: April 29, 1996Date of Patent: January 27, 1998Assignee: First Chemical CorporationInventors: Amy Lisa Bearson, John Robert Ira Eubanks, Alan Daniel Farmer, Franklin Dewitt Ford, Diana Boney Haydel, August John Muller
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Patent number: 5128059Abstract: Blends of diaminoisopropylbenzene (DAIBP) and diaminoethylbenzene (DAEB) are provided for curing epoxy resins. The cured epoxy resins have increased tensile strength and slightly lower glass transition temperatures as compared with resins cured with either diamine alone.Type: GrantFiled: September 13, 1991Date of Patent: July 7, 1992Assignees: First Chemical Corporation, The University of Southern MississippiInventors: Robson F. Storey, Arthur C. Bayer, Sudhakar Dantiki
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Patent number: 5081303Abstract: A two-stage process for the co-production of aniline and m-phenylenediamine where, in the first stage, benzene, nitric acid, and sulfuric acid are reacted in a liquid phase to produce in greater amounts nitrobenzene (approximately 70%) and m-dinitrobenzene (approximately 30%), and in lesser or trace amounts o-dinitrobenzene and p-dinitrobenzene, and water; and in the second stage the products of the first stage are reacted with hydrogen in the liquid phase to produce aniline (approximately 70%) and m-phenylenediamine (approximately 30%) in greater amounts, and o-phenylenediamine and p-phenylenediamine in lesser amounts, and water. The reaction products are separated by distillation.Type: GrantFiled: April 21, 1989Date of Patent: January 14, 1992Assignee: First Chemical CorporationInventors: Harold Greenfield, Arthur C. Bayer, Earl G. Alley
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Patent number: 5081302Abstract: The selective ring-alkylation of anilines comprising providing a mixture of a lower alkanol and an aniline, exposing said mixture to a temperature of from 300.degree. C. to 500.degree. C., preferably from 350.degree. C. to 450.degree. C., in the presence of an acidic Y-type zeolite is described. The Y-type zeolites are predominantly selective to the formation of para-alkylanilines.Type: GrantFiled: April 27, 1989Date of Patent: January 14, 1992Assignee: First Chemical CorporationInventors: Arthur C. Bayer, Charles U. Pittman, Jr., Lichang Wang, Earl G. Alley, Anthony C. Maliyackel
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Patent number: 5075379Abstract: The use of a blend of diaminoisopropylbenzene (DAIPB) and an amine terminated butadiene nitrile liquid rubber (ATBN) for curing epoxy resins is provided. The DAIPB/ATBN blend produces a rubber toughened epoxy resin having improved tensile properties.Type: GrantFiled: September 10, 1990Date of Patent: December 24, 1991Assignees: First Chemical Corporation, The University of Southern MississippiInventors: Robson F. Storey, Sudhakar Dantiki, J. Patrick Adams
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Patent number: 5049639Abstract: Blends of diaminoisopropylbenzene (DAIPB) and diaminoethylbenzene (DAEB) are provided for curing epoxy resins. The cured epoxy resins have increased tensile strength and slightly lower glass transistion temperatures as compared with resins cured with either diamine alone.Type: GrantFiled: February 23, 1989Date of Patent: September 17, 1991Assignees: First Chemical Corporation, The University of Southern MississippiInventors: Robson F. Storey, Arthur C. Bayer, Sudhakar Dantiki
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Patent number: 5030759Abstract: The selective N-alkylation of anilines comprising providing a mixture of a lower alkanol and an aniline, exposing said mixture to a temperature of from 250.degree. C. to 350.degree. C. in the presence of an acidic zeolite having a pore size of from 6 to 8 angstroms with a three-dimensional tubular shape, such as S-115 zeolite, is described. These zeolites are predominantly selective to the formation of N-alkylanilines.Type: GrantFiled: April 27, 1989Date of Patent: July 9, 1991Assignee: First Chemical CorporationInventors: Arthur C. Bayer, Charles U. Pittman, Jr., Lichang Wang, Earl G. Alley, Anthony C. Maliyackel