Patents by Inventor Prakasa R. Anantaneni
Prakasa R. Anantaneni 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: 9598358Abstract: Acylalkylisethionate esters are produced by reacting one or more carboxylic acids with one or more alkyl-substituted hydroxyalkyl sulfonates under esterification reaction conditions. The alkyl-substituted hydroxyalkyl sulfonates used as a raw material in producing the esters are prepared by reacting bisulfate with one or more alkylene oxides. The acylalkylisethionate esters may be used in consumer products.Type: GrantFiled: June 28, 2011Date of Patent: March 21, 2017Assignee: HUNTSMAN PETROCHEMICAL LLCInventors: Prakasa R. Anantaneni, John Gray, Marty J. Renner, George A. Smith, David C. Lewis, Donald H. Champion, Christopher J. Whewell
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Patent number: 8580723Abstract: Methods and compositions are provided for forming ester based compositions. The ester based compositions may be used in consumer products. In one aspect, a method is provided for producing acyl alkylisethionate esters by the esterification of a sulfonate composition having two or more sulfonate isomers with fatty acid(s). In another aspect, a method is provided for forming an ester based composition including a blend of acyl alkylisethionate and acylisethionate esters.Type: GrantFiled: December 20, 2011Date of Patent: November 12, 2013Assignee: Huntsman Petrochemical LLCInventors: Prakasa R. Anantaneni, George A. Smith, Martin J. Renner
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Publication number: 20120094890Abstract: Methods and compositions are provided for forming ester based compositions. The ester based compositions may be used in consumer products. In one aspect, a method is provided for producing acyl alkylisethionate esters by the esterification of a sulfonate composition having two or more sulfonate isomers with fatty acid(s). In another aspect, a method is provided for forming an ester based composition including a blend of acyl alkylisethionate and acylisethionate esters.Type: ApplicationFiled: December 20, 2011Publication date: April 19, 2012Applicant: Huntsman Petrochemical LLCInventors: Prakasa R. Anantaneni, George A. Smith, Martin J. Renner
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Patent number: 8105993Abstract: Methods and compositions are provided for forming ester based compositions. The ester based compositions may be used in consumer products. In one aspect, a method is provided for producing acyl alkylisethionate esters by the esterification of a sulfonate composition having two or more sulfonate isomers with fatty acid(s). In another aspect, a method is provided for forming an ester based composition including a blend of acyl alkylisethionate and acylisethionate esters.Type: GrantFiled: May 1, 2007Date of Patent: January 31, 2012Assignee: Huntsman Petrochemical LLCInventors: Prakasa R. Anantaneni, George A. Smith, Martin J. Renner
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Publication number: 20110257072Abstract: Acylalkylisethionate esters are produced by reacting one or more carboxylic acids with one or more alkyl-substituted hydroxyalkyl sulfonates under esterification reaction conditions. The alkyl-substituted hydroxyalkyl sulfonates used as a raw material in producing the esters are prepared by reacting bisulfate with one or more alkylene oxides. The acylalkylisethionate esters may be used in consumer products.Type: ApplicationFiled: June 28, 2011Publication date: October 20, 2011Inventors: Prakasa R. Anantaneni, John Gray, Marty J. Renner, George A. Smith, David C. Lewis, Donald H. Champion, Christopher J. Whewell
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Patent number: 8008239Abstract: The present invention provides acylalkylisethionate esters useful in consumer products. The acylalkylisethionate esters are produced by reacting one or more carboxylic acids with one or more alkyl-substituted hydroxyalkyl sulfonates under esterification reaction conditions. The alkyl-substituted hydroxyalkyl sulfonates used as a raw material in producing the esters are prepared by reacting bisulfite with one or more alkylene oxides.Type: GrantFiled: August 11, 2004Date of Patent: August 30, 2011Assignee: Huntsman Petrochemical LLCInventors: Prakasa R. Anantaneni, John Gray, Marty J. Renner, George A. Smith, David C. Lewis, Donald H. Champion, Christopher J. Whewell
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Publication number: 20100215610Abstract: Methods and compositions are provided for forming ester based compositions. The ester based compositions may be used in consumer products. In one aspect, a method is provided for producing acyl alkylisethionate esters by the esterification of a sulfonate composition having two or more sulfonate isomers with fatty acid(s). In another aspect, a method is provided for forming an ester based composition including a blend of acyl alkylisethionate and acylisethionate esters.Type: ApplicationFiled: May 1, 2007Publication date: August 26, 2010Applicant: Huntsman Petrochemical CorporationInventors: Prakasa R. Anantaneni, George A. Smith, Martin J. Renner
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Publication number: 20080234159Abstract: The present invention provides acylalkylisethionate esters useful in consumer products. The acylalkylisethionate esters are produced by reacting one or more carboxylic acids with one or more alkyl-substituted hydroxyalkyl sulfonates under esterification reaction conditions. The alkyl-substituted hydroxyalkyl sulfonates used as a raw material in producing the esters are prepared by reacting bisulfite with one or more alkylene oxides.Type: ApplicationFiled: August 11, 2004Publication date: September 25, 2008Applicant: Huntsman Petrochemical CorporationInventors: Prakasa R. Anantaneni, John Gray, Marty J. Renner, George A. Smith, David C. Lewis, Donald H. Champion, Christopher J. Whewell
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Patent number: 7008914Abstract: This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing mordenite is prepared typically by treatment with an aqueous hydrogen fluoride solution. The benzene alkylation may be conducted using reactive distillation. This invention is also directed to a process for production of LAB having a high 2-phenyl isomer content by use of the fluorine-containing mordenite in conjunction with a conventional solid LAB alkylation catalyst. The two catalysts may be used in a mixed catalyst bed or may be packed in series, with the relative proportions being adjusted to provide a desired 2-phenyl isomer content of in the final product.Type: GrantFiled: October 3, 2002Date of Patent: March 7, 2006Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Prakasa R. Anantaneni, Samir S. Ashrawi, Raeda M. Smadi, John F. Knifton, Melvin Stockton
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Patent number: 6995127Abstract: This invention is directed to detergent compositions which employ sulfonated alkyltoluenes as surfactants, wherein the sulfonated alkyltoluenes have a higher content of the sulfonated 2-phenyl alkyltoluenes isomers than was previously available in sulfonated alkyltoluene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated alkyltoluenes having lower contents of the 2-phenyl alkyltoluene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkyltoluenes are also provided, including dry cleaning formulations containing same.Type: GrantFiled: September 19, 2000Date of Patent: February 7, 2006Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Prakasa R. Anantaneni, Samir S. Ashrawi, Raeda M. Smadi
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Patent number: 6887839Abstract: This invention is directed to detergent compositions which employ sulfonated linear alkylbenzenes as surfactants, wherein the sulfonated linear alkylbenzenes have a higher content of the sulfonated 2-phenyl alkylbenzene isomers than was previously available in sulfonated phenyl alkylbenzene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated linear alkylbenzenes having lower contents of the 2-phenyl alkylbenzene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkylbenzenes are also provided, including dry formulations containing same.Type: GrantFiled: February 19, 2003Date of Patent: May 3, 2005Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Samir S. Ashrawi, Raeda M. Smadi, Prakasa R. Anantaneni
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Patent number: 6849588Abstract: Provided herein are structured liquid surfactants produced using a linear alkylbenzene sulfonate having various levels of 2-isomer content.Type: GrantFiled: May 9, 2003Date of Patent: February 1, 2005Assignee: Huntsman Petrochemical CorporationInventors: Curtis M. Elsik, George A. Smith, Samir S. Ashrawi, Prakasa R. Anantaneni, Christopher J. Whewell
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Publication number: 20040127742Abstract: Provided herein is a class of compounds with surfactant properties known as alcohol ether sulfonates. These materials are produced according to the present invention by reaction of isethionic acid or its halo-derivative with an alcohol. An alcohol ether sulfonate according to the invention is useful as a component of a finished surfactant formulation useful for cleaning hard surfaces, laundry, and dishes, among other things.Type: ApplicationFiled: October 21, 2003Publication date: July 1, 2004Applicant: Huntsman Petrochemical CorporationInventors: Prakasa R. Anantaneni, Samir S. Ashrawi, David C. Lewis, George A. Smith
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Publication number: 20040009882Abstract: Provided herein are structured liquid surfactants produced using a linear alkylbenzene sulfonate having various levels of 2-isomer content.Type: ApplicationFiled: May 9, 2003Publication date: January 15, 2004Applicant: Huntsman Petrochemical CorporationInventors: Curtis M. Elsik, George A. Smith, Samir S. Ashrawi, Prakasa R. Anantaneni, Christopher J. Whewell
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Patent number: 6630430Abstract: This invention is directed to lubricating compositions which contain detergent components derived from linear alkylbenzenes including sulfonates and salts and esters thereof. Detergents provided by the invention have a higher content of the 2-phenyl alkylbenzene isomers than was previously available in materials of prior art. The detergents of the present invention are more powerful detergents over those previously available and may be employed as additives in various lubricating compositions, including motor oils, cutting fluids, emulsions, and motor fuels.Type: GrantFiled: July 14, 2000Date of Patent: October 7, 2003Assignee: Huntsman Petrochemical CorporationInventors: Prakasa R. Anantaneni, George A. Smith
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Publication number: 20030186831Abstract: This invention is directed to detergent compositions which employ sulfonated linear alkylbenzenes as surfactants, wherein the sulfonated linear alkylbenzenes have a higher content of the sulfonated 2-phenyl alkylbenzene isomers than was previously available in sulfonated phenyl alkylbenzene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated linear alkylbenzenes having lower contents of the 2-phenyl alkylbenzene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkylbenzenes are also provided, including dry formulations containing same.Type: ApplicationFiled: February 19, 2003Publication date: October 2, 2003Applicant: Huntsman Petrochemical CorporationInventors: George A. Smith, Samir S. Ashrawi, Raeda M. Smadi, Prakasa R. Anantaneni
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Publication number: 20030166481Abstract: This invention is directed to a fluorine-containing mordenite catalyst and use thereof in the manufacture of alkylbenzene (LAB) by alkylation of benzene with an olefin. The olefin may have from about 10 to 14 carbons. The fluorine-containing mordenite is prepared typically by treatment with an aqueous hydrogen fluoride solution. The benzene alkylation may be conducted using reactive distillation. This invention is also directed to a process for production of LAB having a high 2-phenyl isomer content by use of the fluorine-containing mordenite in conjunction with a conventional solid LAB alkylation catalyst. The two catalysts may be used in a mixed catalyst bed or may be packed in series, with the relative proportions being adjusted to provide a desired 2-phenyl isomer content of in the final product.Type: ApplicationFiled: October 3, 2002Publication date: September 4, 2003Applicant: Huntsman Petrochemical CorporationInventors: George A. Smith, Prakasa R. Anantaneni, Samir S. Ashrawi, Raeda M. Smadi, John F. Knifton, Melvin Stockton
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Patent number: 6562776Abstract: This invention is directed to detergent compositions which employ sulfonated linear alkylbenzenes as surfactants, wherein the sulfonated linear alkylbenzenes have a higher content of the sulfonated 2-phenyl alkylbenzene isomers than was previously available in sulfonated phenyl alkylbenzene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated linear alkylbenzenes having lower contents of the 2-phenyl alkylbenzene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkylbenzenes are also provided, including dry formulations containing same.Type: GrantFiled: April 26, 2000Date of Patent: May 13, 2003Assignee: Huntsman Petrochemical CorporationInventors: George A. Smith, Samir S. Ashrawi, Raeda M. Smadi, Prakasa R. Anantaneni
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Patent number: 5185485Abstract: There is disclosed an improved process for the production of linear alkylbenzene wherein monoolefins are reacted with benzene in a hydrogen fluoride catalyzed reaction followed by recovery of the alkylbenzene. An alumina treatment step is included which removes organic fluoride impurities in order to prevent release of hydrofluoric acid in downstream equipment. It has been discovered that the SO.sub.3 sulfonation color of the alkylbenzene is surprisingly improved by the use of a high selectivity basic alumina for this treatment.Type: GrantFiled: June 28, 1991Date of Patent: February 9, 1993Assignee: Monsanto CompanyInventors: David R. Dyroff, Prakasa R. Anantaneni
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Patent number: 5118652Abstract: A process of this invention for producing glyoxylate esters is carried out by contacting a with a catalyst comprising ferric phosphate on an alumina supportfeed composition comprising an oxygen containing gas and a vaporized lower alkyl ester of glycolic acid. The process of the invention can be carried out as either a fixed bed or a fluid bed operation.Type: GrantFiled: September 19, 1990Date of Patent: June 2, 1992Assignee: Monsanto CompanyInventors: Prakasa R. Anantaneni, Tao P. Li