Patents Assigned to Huntsman Petrochemical Corporation
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Patent number: 6093496Abstract: This invention concerns a composition comprising a blend of polyolefin with the reaction of a functionalized polyolefin and polyetheramine in which the polyetheramine is grafted into the functionalized polyolefin in a customary mixing apparatus. A process for producing the reaction product of functionalized polypropylene and polyetheramine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts. This invention further includes dyeable polyolefin compositions containing the reaction product of functionalized polyolefin and polyetheramine. Dyeable polyolefin fibers, including polypropylene fibers, are disclosed, which may be made by melt spinning, and which may be employed to make woven and non-woven fabric. The polyolefin employed in the practice of this invention may be a flexible polyolefin.Type: GrantFiled: May 12, 1998Date of Patent: July 25, 2000Assignee: Huntsman Petrochemical CorporationInventors: Richard Joseph Gilbert Dominguez, Christopher S. Henkee, Kevin J. Hess, Wheeler C. Crawford, Richard J. Clark, Randall K. Evans, Gerald W. Cummings
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Patent number: 6093773Abstract: A compound comprising a blend of polypropylene with the reaction product of a functionalized polypropylene and polyether amine in which the polyether amine is grafted onto the functionalized polypropylene in a customary mixing apparatus is disclosed. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed.Type: GrantFiled: August 3, 1999Date of Patent: July 25, 2000Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard James Clark
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Patent number: 6093854Abstract: Disclosed herein is a process for producing alkanolamines from the reaction between a polyolefin epoxide and an organic amino compound under conditions of elevated temperature and pressure, in the presence of a catalytic amount of an alcohol. Higher reaction rates for alkanolamine production than provided in the prior art may be achieved by use of a process according to the invention. Alkanolamines having various levels of nitrogen may be produced by the invention.Type: GrantFiled: October 14, 1999Date of Patent: July 25, 2000Assignee: Huntsman Petrochemical CorporationInventors: Wei-Yang Su, John Michael Larkin
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Patent number: 6090245Abstract: Processes for the purification and color stabilization of crude maleic anhydride by distillation in a batch or continuous distillation column.Type: GrantFiled: March 19, 1999Date of Patent: July 18, 2000Assignee: Huntsman Petrochemical CorporationInventors: Henry C. Brown, William H. Alumbaugh, Joseph C. Burnett
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Patent number: 6083897Abstract: Methods and compositions relating to solubilization of alkylbenzene sulfonate surfactants in detergent formulations. Addition of one or more polyethylene glycols to detergents including low 2-phenyl linear alkylbenzene sulfonate surfactants may be used to increase solubility of the low 2-phenyl linear alkylbenzene sulfonate surfactants. Increased solubility of the low 2-phenyl linear alkylbenzene sulfonate surfactants serves to lower the cloud point of the detergents, permitting formulation of liquid detergent compositions containing greater concentrations of low 2-phenyl linear alkylbenzene sulfonate surfactants.Type: GrantFiled: August 28, 1998Date of Patent: July 4, 2000Assignee: Huntsman Petrochemical CorporationInventors: Ronald G. Lewis, David C. Lewis
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Patent number: 6075168Abstract: This invention concerns a process for the production of diethanolamine (DEA) by contacting monoethanolamine (MEA) and ethylene oxide (EO) in a reactive distillation column. The process may achieve high selectivity to DEA.Type: GrantFiled: August 21, 1998Date of Patent: June 13, 2000Assignee: Huntsman Petrochemical CorporationInventors: Ralph M. DiGuilio, Michael W. McKinney
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Patent number: 6063965Abstract: This invention concerns a process for preparation of alkanolamines such as diethanolamine (DEA) from ammonia and an alkylene oxide such as ethylene oxide. The yield of DEA may be increased by adding monoethanolamine (MEA) to the second feed in a split feed reactor scheme. The process can be conducted as a multistep process, such as by reacting a portion of the ethylene oxide followed by addition of a second charge of ethylene oxide after complete reaction of the first charge of ethylene oxide.Type: GrantFiled: September 8, 1998Date of Patent: May 16, 2000Assignee: Huntsman Petrochemical CorporationInventors: Dennis M. Nygaard, Ralph M. Diguilio
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Patent number: 6063145Abstract: This invention concerns a fuel additive comprising an etheramine alkoxylate, and fuel compositions and additive concentrates made therefrom. The etheramine alkoxylate may be of formula: ##STR1## where R.sup.1 is a straight or branched alkyl, or alkylaryl; R.sup.2 is independently in each occurrence hydrogen or alkyl from 1 to 6 carbons; R.sup.3 is independently in each occurrence hydrogen or alkyl of from 1 to 6 carbons; m averages from about 2 to about 20; and x and y each independently average from about 0 to 2, where x+y averages from about 1 to about 4.Type: GrantFiled: June 26, 1998Date of Patent: May 16, 2000Assignee: Huntsman Petrochemical CorporationInventors: John M. Larkin, Wei-Yang Su, Terry L. Renken
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Patent number: 6060625Abstract: A process for the alkoxylation of a polyetheramine to form an etheramine alkoxylate. In the process, a polyetheramine is reacted with an alkylene oxide in the presence of an alcohol to form the etheramine alkoxylate. The alcohol serves as a catalyst to allow the reaction proceed at a heightened temperature as compared to the reaction in the absence of alcohol, while at the same time limiting the amount of glycol by-product production which would otherwise typically form when higher polyetheramines are to be alkoxylated. The alcohol may be, for instance, ethanol or methanol.Type: GrantFiled: April 30, 1999Date of Patent: May 9, 2000Assignee: Huntsman Petrochemical CorporationInventors: Wei-Yang Su, Mike W. McKinney, Timothy L. Lambert, Edward T. Marquis
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Patent number: 6057443Abstract: Dimorpholinodiethylether is treated with hydrogen over a reducing catalyst to improve its isocyanate stability.Type: GrantFiled: January 29, 1997Date of Patent: May 2, 2000Assignee: Huntsman Petrochemical CorporationInventor: Robert LeRoy Zimmerman
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Patent number: 6046343Abstract: Improved methods and apparatus for manufacture of maleic anhydride by catalytic oxidation of n-butane or other hydrocarbon having four carbon atoms in a straight chain over a fixed catalyst bed comprising a phosphorus vanadium oxide catalyst. Movement of catalyst bodies with respect to each other and with respect to the walls of the reaction chamber is restrained so as to prevent the catalyst bodies from abrading against each other or the reactor chamber walls in a manner that would cause formation of catalyst fines. Methods and apparatus are also provided for removal of fines from a fixed catalyst bed. The methods of the invention are effective to prevent loss of catalyst from a tubular reactor, and to control degradation of solvent absorbent in a process in which maleic anhydride is separated from the reaction gas by absorption into such a solvent.Type: GrantFiled: February 25, 1999Date of Patent: April 4, 2000Assignee: Huntsman Petrochemical CorporationInventors: Michael J. Mummey, Robert A. Keppel, A. Lamar Reeves
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Patent number: 6040284Abstract: This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.Type: GrantFiled: May 22, 1998Date of Patent: March 21, 2000Assignee: Huntsman Petrochemical CorporationInventors: Edward T. Marquis, Robert E. Baldwin
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Patent number: 6031048Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.Type: GrantFiled: July 12, 1996Date of Patent: February 29, 2000Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J.G. Dominguez, Richard J. Clark
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Patent number: 6015550Abstract: This invention concerns a method useful for reducing odor where odoriferous amine-containing compound is present, comprising: applying an alkylene carbonate to a source of the amine-containing compound under conditions such that the alkylene carbonate forms a reaction product with odoriferous amine-containing compounds such that odor is reduced. Sources of such amine-containing compounds include chicken coops, dumps, land fills, cat litter, stagnant water, water treatment ponds and plants, garbage cans and dumpsters, dog kennels, zoos, rendering plants food processing plants, slaughter houses, wool plants, fish canneries (cleaning and processing plants), underground sewers, paper mills, paper processing, outhouses and toilets that have no running water, and public restrooms.Type: GrantFiled: January 22, 1998Date of Patent: January 18, 2000Assignee: Huntsman Petrochemical CorporationInventor: Edward T. Marquis
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Patent number: 6013755Abstract: This invention concerns a method for the preparation of polyurea elastomers, comprising: (a) reacting an amine chain extender with dialkyl maleate to form an aspartic ester, wherein the chain extender has a molar amount of amine groups that is less than the moles of dialkyl maleate; (b) blending the aspartic ester with one or more polyoxyalkyleneamines to prepare a resin blend; (c) contacting the resin blend with an isocyanate under conditions effective to form a polyurea elastomer. This invention also concerns a a polyurea elastomer, comprising the reaction product of (a) a resin blend containing one or more polyoxyalkyleneamine and an aspartic ester and (b) an isocyanate, wherein the aspartic ester in the resin blend comprises a reaction product of an amine chain extender and a dialkyl maleate, wherein the mole ratio of amine functionality in the amine chain extender to dialkyl maleate or fumarate is greater than 1:1.Type: GrantFiled: March 11, 1997Date of Patent: January 11, 2000Assignee: Huntsman Petrochemical CorporationInventors: Dudley J. Primeaux, II, Robert L. Zimmerman, Kenneth M. Hillman
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Patent number: 6005121Abstract: An improved process for the manufacture of maleic anhydride by catalytic oxidation of a nonaromatic hydrocarbon having at least four carbon atoms in a straight chain, in which a gas containing oxygen and hydrocarbon is passed through a fixed catalyst bed in a tubular reactor. The activity of the catalyst bed is graded in such manner that the reactor can be operated at an initial (feed gas) hydrocarbon concentration of over 1.5% by volume, an integrated average temperature difference between gas and cooling fluid of at least about 15.degree. C. over that portion of the bed in which the gas temperature exceeds the cooling fluid temperature, and a productivity of at least about 5.0 lbs. maleic anhydride per hour, without the temperature difference between the gas and the cooling fluid exceeding 80.degree. C. at any point in the catalyst bed during the course of the reaction.Type: GrantFiled: April 10, 1998Date of Patent: December 21, 1999Assignee: Huntsman Petrochemical CorporationInventors: Jerry R. Ebner, Robert A. Keppel, Michael J. Mummey
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Patent number: 5985999Abstract: This invention concerns a composition comprising a blend of polyolefin with the reaction of a functionalized polyolefin and polyetheramine in which the polyetheramine is grafted into the functionalized polyolefin in a customary mixing apparatus. A process for producing the reaction product of functionalized polypropylene and polyetheramine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts. This invention further includes dyeable polyolefin compositions containing the reaction product of functionalized polyolefin and polyetheramine. Dyeable polyolefin fibers, including polypropylene fibers, are disclosed, which may be made by melt spinning, and which may be employed to make woven and non-woven fabric.Type: GrantFiled: April 23, 1997Date of Patent: November 16, 1999Assignee: Huntsman, Petrochemical CorporationInventors: Richard Joseph Gilbert Dominguez, Christopher S. Henkee, Wheeler C. Crawford, Gerald W. Cummings, Kevin John Hess, Richard James Clark, Randall Keith Evans
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Patent number: 5972174Abstract: Processes for the purification and color stabilization of crude maleic anhydride by distillation in a batch or continuous distillation column.Type: GrantFiled: January 13, 1998Date of Patent: October 26, 1999Assignee: Huntsman Petrochemical CorporationInventors: Henry C. Brown, William H. Alumbaugh, Joseph C. Burnett
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Patent number: 5965667Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.Type: GrantFiled: November 3, 1997Date of Patent: October 12, 1999Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 5962699Abstract: A process for decolorizing organic carbonates, for example, cyclic alkylene carbonates, which involves contacting a discolored organic carbonate with hydrogen peroxide, is disclosed.Type: GrantFiled: July 23, 1998Date of Patent: October 5, 1999Assignee: Huntsman Petrochemical CorporationInventors: Edward T. Marquis, Robert E. Baldwin