Patents by Inventor Marshall J. Nepras
Marshall J. Nepras 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: 9796662Abstract: Esteramine compositions and their derivatives are disclosed. The esteramines comprise a reaction product of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with a tertiary alkanolamine. Derivatives made by quaternizing, sulfonating, alkoxylating, sulfating, and/or sulfitating the esteramines are also disclosed. In one aspect, the ester derivative of the C10-C17 monounsaturated acid or octadecene-1,18-dioic acid is a lower alkyl ester. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin. The esteramines and derivatives are valuable for a wide variety of end uses, including cleaners, fabric treatment, hair conditioning, personal care (liquid cleansing products, conditioning bars, oral care products), antimicrobial compositions, agricultural uses, and oil field applications.Type: GrantFiled: October 1, 2015Date of Patent: October 24, 2017Assignee: Stepan CompanyInventors: Dave R Allen, Randal J Bernhardt, Aaron Brown, Anatoliy A Dameshek, Brian Holland, Andrew D Malec, Ronald A Masters, Marshall J Nepras, Patti Skelton, Laura Lee Whitlock, Patrick Shane Wolfe
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Publication number: 20160023989Abstract: Esteramine compositions and their derivatives are disclosed. The esteramines comprise a reaction product of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with a tertiary alkanolamine. Derivatives made by quaternizing, sulfonating, alkoxylating, sulfating, and/or sulfitating the esteramines are also disclosed. In one aspect, the ester derivative of the C10-C17 monounsaturated acid or octadecene-1,18-dioic acid is a lower alkyl ester. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin. The esteramines and derivatives are valuable for a wide variety of end uses, including cleaners, fabric treatment, hair conditioning, personal care (liquid cleansing products, conditioning bars, oral care products), antimicrobial compositions, agricultural uses, and oil field applications.Type: ApplicationFiled: October 1, 2015Publication date: January 28, 2016Inventors: Dave R Allen, Randal J Bernhardt, Aaron Brown, Anatoliy A Dameshek, Brian Holland, Andrew D Malec, Ronald A Masters, Marshall J Nepras, Patti Skelton, Laura Lee Whitlock, Patrick Shane Wolfe
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Patent number: 9187711Abstract: Esteramine compositions and their derivatives are disclosed. The esteramines comprise a reaction product of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with a tertiary alkanolamine. Derivatives made by quaternizing, sulfonating, alkoxylating, sulfating, and/or sulfating the esteramines are also disclosed. In one aspect, the ester derivative of the C10-C17 monounsaturated acid or octadecene-1,18-dioic acid is a lower alkyl ester. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin. The esteramines and derivatives are valuable for a wide variety of end uses, including cleaners, fabric treatment, hair conditioning, personal care (liquid cleansing products, conditioning bars, oral care products), antimicrobial compositions, agricultural uses, and oil field applications.Type: GrantFiled: October 25, 2011Date of Patent: November 17, 2015Assignee: Stepan CompanyInventors: Dave R. Allen, Randal J. Bernhardt, Aaron Brown, Anatoliy A. Damashek, Brian Holland, Andrew D. Malec, Ronald A. Masters, Marshall J. Nepras, Patti Skelton, Laura Lee Whitlock, Patrick Shane Wolfe
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Patent number: 8692005Abstract: Provided are methods for decreasing the reaction time between an alkanolamine such as triethanolamine and a fatty acid alkyl ester such as, a triglyceride, a vegetable oil, a methyl ester, an ethyl ester, etc., a fatty acid, or a mixture thereof. The methods utilize a divalent zinc catalyst to facilitate and accelerate an esterification or transesterification reaction between the alkanolamine and the fatty acid, or fatty acid alkyl ester.Type: GrantFiled: August 15, 2012Date of Patent: April 8, 2014Assignee: Stepan CompanyInventors: Marshall J. Nepras, Franz J. Luxem, Leonard F. Zaporowski, David Eisenberg
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Publication number: 20130225859Abstract: Esteramine compositions and their derivatives are disclosed. The esteramines comprise a reaction product of a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with a tertiary alkanolamine. Derivatives made by quaternizing, sulfonating, alkoxylating, sulfating, and/or sulfitating the esteramines are also disclosed. In one aspect, the ester derivative of the C10-C17 monounsaturated acid or octadecene-1,18-dioic acid is a lower alkyl ester. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin. The esteramines and derivatives are valuable for a wide variety of end uses, including cleaners, fabric treatment, hair conditioning, personal care (liquid cleansing products, conditioning bars, oral care products), antimicrobial compositions, agricultural uses, and oil field applications.Type: ApplicationFiled: October 25, 2011Publication date: August 29, 2013Applicant: Stepan CompanyInventors: Dave R. Allen, Randal J. Bernhardt, Aaron Brown, Anatoliy A. Damashek, Brian Holland, Andrew D. Malec, Ronald A. Masters, Marshall J. Nepras, Patti Skelton, Laura Lee Whitlock, Patrick Shane Wolfe
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Publication number: 20120309993Abstract: Provided are methods for decreasing the reaction time between an alkanolamine such as triethanolamine and a fatty acid alkyl ester such as, a triglyceride, a vegetable oil, a methyl ester, an ethyl ester, etc., a fatty acid, or a mixture thereof The methods utilize a divalent zinc catalyst to facilitate and accelerate an esterification or transesterification reaction between the alkanolamine and the fatty acid, or fatty acid alkyl ester.Type: ApplicationFiled: August 15, 2012Publication date: December 6, 2012Inventors: Marshall J. Nepras, Franz J. Luxem, Leonard F. Zaporowski, David Eisenberg
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Publication number: 20100197560Abstract: A fabric conditioning active composition comprising an esterquat mixture of quaternised mono- di- and tri-esters of alkanolamine in which the tri-esterquat content of the quaternised esterquat mixture is from 25 to 50% by weight of said esterquat mixture. Additionally, (i) when the triesterquat content is from 25 to 30% by weight of said esterquat mixture the free amine content of the composition is less than 0.5% by weight on the weight on said esterquat mixture, and (ii) when the tri-esterquat content is more than 30% by weight of said esterquat mixture the free amine content of the composition is less than 6% by weight based on the weight of said esterquat mixture. The composition may contain less than 1% by weight of free fatty acid based on said esterquat mixture.Type: ApplicationFiled: February 10, 2006Publication date: August 5, 2010Inventors: Marshall J. Nepras, Michael R. Terry, Matthew I. Levinson, Randal J. Bernhardt
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Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids
Patent number: 6172026Abstract: Disclosed are compositions suitable for formation into mild personal cleansing or laundry detergent bars, as well as other uses. The compositions generally comprise: (a) from about 30% to about 99% by weight of a mixture of anionic surfactants comprising: i) an alpha sulfonated alkyl ester; and ii) a sulfonated fatty acid; (a) from about 0.5% to about 50% by weight of a fatty acid; and (b) from about 0.1% to about 50% by weight water; wherein the ratio of i) to ii) is from about 10:1 to about 0.5:1, and wherein the ratio of (a) to (b) is about 1:1 to about 11:1.Type: GrantFiled: August 5, 1999Date of Patent: January 9, 2001Assignee: Stepan CompanyInventors: Carlos E. Ospinal, Jeffrey S. Nelson, Catherine J. Sporer, Marshall J. Nepras -
Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids
Patent number: 5965508Abstract: Disclosed are compositions suitable for formation into mild personal cleansing or laundry detergent bars, as well as other uses. The compositions generally comprise:(a) from about 30% to about 99% by weight of a mixture of anionic surfactants comprising:i) an alpha sulfonated alkyl ester; andii) a sulfonated fatty acid;(a) from about 0.5% to about 50% by weight of a fatty acid; and(b) from about 0.1% to about 50% by weight water;wherein the ratio of i) to ii) is from about 10:1 to about 0.5:1, and wherein the ratio of (a) to (b) is about 1:1 to about 11:1.Type: GrantFiled: October 21, 1997Date of Patent: October 12, 1999Assignee: Stepan CompanyInventors: Carlos E. Ospinal, Jeffrey S. Nelson, Catherine J. Sporer, Marshall J. Nepras -
Patent number: 5840985Abstract: Disclosed is a process for the preparation of primary, secondary and tertiary amines with high conversion and high selectivity via low pressure catalytic hydrogenation of unsubstituted, N-substituted, and N,N-disubstituted amides. Amide hydrogenation is conducted using a catalyst system comprising copper chromite and a nucleophilic reagent, in combination with hydrogen gas. The process allows for production of amines which may be directly used as chemical intermediates in the manufacture of surfactants, quaternary ammonium compounds, bactericides, disinfectants, lubricants, petroleum additives, ion exchange resins and the like, without the need of purification, such as distillation.Type: GrantFiled: July 18, 1996Date of Patent: November 24, 1998Assignee: Stepan CompanyInventors: Marshall J. Nepras, Randal J. Bernhardt, Cathy J. Sporer
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Patent number: 5124475Abstract: The invention encompasses methods for preparing in high purity and in high yield p-phenyl sulfonic acid acyl glycolates of the formula ##STR1## where R represents branched or straight chain alkyl having 6-12 carbon atoms by treating a phenyl ester or phenyl acyl glycolate of the formula ##STR2## where R represents branched or straight chain alkyl having 6-12 carbon atoms with a sulfonating agent to form intermediate sulfonation; transmuting the intermediate sulfonation products; and quenching the transmuted intermediate sulfonation products with a quenching reagent reactive with sulfur trioxide.Type: GrantFiled: March 1, 1991Date of Patent: June 23, 1992Assignee: Stepan CompanyInventors: Marshall J. Nepras, Peter F. Heid, Matthew I. Levinson, Randal J. Bernhardt, James A. Hartlage