Patents by Inventor Mahmood Sabahi
Mahmood Sabahi 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: 9796939Abstract: Described are multi-ring antioxidant products comprising at least one sulfur-bridged aromatic hydrocarbon compound substituted on at least one of its aromatic rings by at least one sterically hindered 3,5-dihydrocarbyl-4-hydroxybenzyl moiety. Such products have the formula: R—Sn—R[—S—R]m wherein each R is, independently, an aromatic hydrocarbon group having 6-12 carbon atoms, wherein m is 0-20, wherein n is 1-6 when m is 0, and when n is 1, m is 1-20; and wherein at least one of R, R1, and R2 is substituted by at least one such sterically hindered moiety. The preparation of such products and their use as antioxidants in compositions normally susceptible to oxidative degradation in oxygen or air, e.g., liquid fuel and lubricants, are also described.Type: GrantFiled: October 8, 2013Date of Patent: October 24, 2017Assignee: SI GROUP, INC.Inventor: Mahmood Sabahi
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Patent number: 8766016Abstract: Processes for producing 1,3,5-trimethyl-2,4,6-tris(3,5-dialkyl-4-hydroxybenzyl)benzene are provided, in particular such processes that utilize 2,6-di-tert-butylphenol, paraformaldehyde, a secondary amine, mesitylene, and acetic acid.Type: GrantFiled: July 6, 2010Date of Patent: July 1, 2014Assignee: Albermarle CorporationInventors: Mahmood Sabahi, Thomas Robert Nicholas
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Publication number: 20140038871Abstract: Described are multi-ring antioxidant products comprising at least one sulfur-bridged aromatic hydrocarbon compound substituted on at least one of its aromatic rings by at least one sterically hindered 3,5-dihydrocarbyl-4-hydroxybenzyl moiety. Such products have the formula: R—Sn—R[—S—R]m wherein each R is, independently, an aromatic hydrocarbon group having 6-12 carbon atoms, wherein m is 0-20, wherein n is 1-6 when m is 0, and when n is 1, m is 1-20; and wherein at least one of R, R1, and R2 is substituted by at least one such sterically hindered moiety. The preparation of such products and their use as antioxidants in compositions normally susceptible to oxidative degradation in oxygen or air, e.g., liquid fuel and lubricants, are also described.Type: ApplicationFiled: October 8, 2013Publication date: February 6, 2014Applicant: Albemarle CorporationInventor: Mahmood Sabahi
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Patent number: 8580718Abstract: Described are multi-ring antioxidant products comprising at least one sulfur-bridged aromatic hydrocarbon compound substituted on at least one of its aromatic rings by at least one sterically hindered 3,5-dihydrocarbyl-4-hydroxybenzyl moiety. Such products have the formula: R—Sn—R[—S—R]m wherein each R is, independently, an aromatic hydrocarbon group having 6-12 carbon atoms, wherein m is 0-20, wherein n is 1-6 when m is 0, and when n is 1, m is 1-20; and wherein at least one of R, R1, and R2 is substituted by at least one such sterically hindered moiety. The preparation of such products and their use as antioxidants in compositions normally susceptible to oxidative degradation in oxygen or air, e.g., liquid fuel and lubricants, are also described.Type: GrantFiled: July 13, 2009Date of Patent: November 12, 2013Assignee: Albermarle CorporationInventor: Mahmood Sabahi
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Macromolecular amine-phenolic antioxidant compositions, process technology thereof, and uses thereof
Patent number: 8455414Abstract: This invention relates to novel macromolecular amine-phenolic compositions having oxidation inhibition characteristics that are exhibited when added to organic material normally susceptible to oxidative degradation in the presence of air or oxygen, such as petroleum products, synthetic polymers, and elastomeric substances.Type: GrantFiled: October 17, 2007Date of Patent: June 4, 2013Assignee: Albemarle CorporationInventors: Mahmood Sabahi, Vincent J. Gatto, Hassan Y. Elnagar -
Patent number: 8410084Abstract: This invention relates to novel macromolecular compositions having oxidation inhibition characteristics that are exhibited when added to organic material normally susceptible to oxidative degradation in the presence of air or oxygen, such a petroleum products, synthetic polymers, and elastomeric substances.Type: GrantFiled: October 17, 2007Date of Patent: April 2, 2013Assignee: Albemarle CorporationInventors: Mahmood Sabahi, Vincent J. Gatto, Hassan Y. Elnagar
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Patent number: 8212078Abstract: This invention provides aromatic diimines where the diimines have imino groups with at least two carbon atoms, and either are in the form of one benzene ring having two imino groups on the ring, which imino groups are meta or para relative to each other, and in which each position ortho to an imino group bears a hydrocarbyl group, or are in the form of two benzene rings connected by an alkylene bridge and having one imino group on each ring, and in which each position ortho to an imino group bears a hydrocarbyl group.Type: GrantFiled: December 30, 2005Date of Patent: July 3, 2012Assignee: Albemarle CorporationInventors: John Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt, David W. Owens
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MACROMOLECULAR AMINE-PHENOLIC ANTIOXIDANT COMPOSITIONS, PROCESS TECHNOLOGY THEREOF, AND USES THEREOF
Publication number: 20120115764Abstract: This invention relates to novel macromolecular amine-phenolic compositions having oxidation inhibition characteristics that are exhibited when added to organic material normally susceptible to oxidative degradation in the presence of air or oxygen, such as petroleum products, synthetic polymers, and elastomeric substances.Type: ApplicationFiled: October 17, 2007Publication date: May 10, 2012Applicant: Albemarle CorporationInventors: Mahmood Sabahi, Vincent J. Gatto, Hassan Y. Elnagar -
Publication number: 20120108854Abstract: Processes for producing 1,3,5-trimethyl-2,4,6-tris(3,5-dialkyl-4-hydroxybenzyl)benzene are provided, in particular such processes that utilize 2,6-di-tert-butylphenol, paraformaldehyde, a secondary amine, mesitylene, and acetic acid.Type: ApplicationFiled: July 6, 2010Publication date: May 3, 2012Applicant: Albemarle CorporationInventors: Mahmood Sabahi, Thomas Robert Nicholas
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Patent number: 7964695Abstract: This invention provides chain extender compositions. These compositions comprise (i) an aromatic primary diamine, and (ii) a component selected from the group consisting of: (a) an aliphatic secondary diamine; (b) an aliphatic primary diamine; (c) an aliphatic secondary diamine and an aliphatic primary diamine; (d) a diimine; and (e) a combination of any two or more of (a) through (d). When (ii) is (a), (a) has amino hydrocarbyl groups which are secondary or tertiary hydrocarbyl groups; when (ii) is (d), and (d) is an aromatic diimine, each imino hydrocarbylidene group has at least two carbon atoms. Processes for producing polyurethanes, polyureas, and polyurea-urethanes are also provided.Type: GrantFiled: September 25, 2006Date of Patent: June 21, 2011Assignee: Albemarle CorporationInventors: John Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt
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Publication number: 20110124540Abstract: Described are multi-ring antioxidant products comprising at least one sulfur-bridged aromatic hydrocarbon compound substituted on at least one of its aromatic rings by at least one sterically hindered 3,5-dihydrocarbyl-4-hydroxybenzyl moiety. Such products have the formula: R—Sn—R[—S—R]m wherein each R is, independently, an aromatic hydrocarbon group having 6-12 carbon atoms, wherein m is 0-20, wherein n is 1-6 when m is 0, and when n is 1, m is 1-20; and wherein at least one of R, R1, and R2 is substituted by at least one such sterically hindered moiety. The preparation of such products and their use as antioxidants in compositions normally susceptible to oxidative degradation in oxygen or air, e.g., liquid fuel and lubricants, are also described.Type: ApplicationFiled: July 13, 2009Publication date: May 26, 2011Applicant: ALBEMARLE CORPORATIONInventor: Mahmood Sabahi
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Patent number: 7767858Abstract: This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.Type: GrantFiled: September 14, 2007Date of Patent: August 3, 2010Assignee: Albemarle CorporationInventors: Paul L. Wiggins, Judit Orgad, John Y. Lee, Mahmood Sabahi
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Patent number: 7709545Abstract: Benzophenone/thioxanthone derivatives useful as photoinitiators are provided as well as photopolymerizable compositions comprising the benzophenone/thioxanthone derivatives.Type: GrantFiled: December 5, 2007Date of Patent: May 4, 2010Assignee: The University of Southern MississippiInventors: Charles E. Hoyle, Sukhendu B. Hait, Mahmood Sabahi
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Publication number: 20100041730Abstract: This invention relates to novel macromolecular compositions having oxidation inhibition characteristics that are exhibited when added to organic material normally susceptible to oxidative degradation in the presence of air or oxygen, such a petroleum products, synthetic polymers, and elastomeric substances.Type: ApplicationFiled: October 17, 2007Publication date: February 18, 2010Inventors: Mahmood Sabahi, Vincent J. Gatto, Hassan Y. Elnagar
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Publication number: 20080194788Abstract: This invention provides aromatic diimines where the diimines have imino groups with at least two carbon atoms, and either are in the form of one benzene ring having two imino groups on the ring, which imino groups are meta or para relative to each other, and in which each position ortho to an imino group bears a hydrocarbyl group, or are in the form of two benzene rings connected by an alkylene bridge and having one imino group on each ring, and in which each position ortho to an imino group bears a hydrocarbyl group.Type: ApplicationFiled: December 30, 2005Publication date: August 14, 2008Applicant: ALBEMARLE CORPORATIONInventors: John Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt, David W. Owens
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Publication number: 20080132601Abstract: Benzophenone/thioxanthone derivatives useful as photoinitiators are provided as well as photopolymerizable compositions comprising the benzophenone/thioxanthone derivatives.Type: ApplicationFiled: December 5, 2007Publication date: June 5, 2008Inventors: CHARLES E. HOYLE, Sukhendu B. Hait, Mahmood Sabahi
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Publication number: 20080033210Abstract: This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.Type: ApplicationFiled: September 14, 2007Publication date: February 7, 2008Applicant: ALBEMARLE CORPORATIONInventors: John Lee, Paul Wiggins, Judith Orgad, Mahmood Sabahi
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Publication number: 20080004406Abstract: This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.Type: ApplicationFiled: September 14, 2007Publication date: January 3, 2008Applicant: ALBEMARLE CORPORATIONInventors: John Lee, Paul Wiggins, Judith Orgad, Mahmood Sabahi, Vernon Brandt
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Publication number: 20070270566Abstract: This invention provides chain extender compositions. These compositions comprise (i) an aromatic primary diamine, and (ii) a component selected from the group consisting of: (a) an aliphatic secondary diamine; (b) an aliphatic primary diamine; (c) an aliphatic secondary diamine and an aliphatic primary diamine; (d) a diimine; and (e) a combination of any two or more of (a) through (d). When (ii) is (a), (a) has amino hydrocarbyl groups which are secondary or tertiary hydrocarbyl groups; when (ii) is (d), and (d) is an aromatic diimine, each imino hydrocarbylidene group has at least two carbon atoms. Processes for producing polyurethanes, polyureas, and polyurea-urethanes are also provided.Type: ApplicationFiled: September 25, 2006Publication date: November 22, 2007Applicant: ALBEMARLE CORPORATIONInventors: John Lee, Paul Wiggins, Judit Orgad, Mahmood Sabahi, Vernon Brandt
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Patent number: 7288677Abstract: This invention provides aromatic diimines which have imino hydrocarbylidene groups with at least two carbon atoms, and aromatic secondary diamines which have amino hydrocarbyl groups with at least two carbon atoms. Both the aromatic diimines and the aromatic secondary diamines either are in the form of one phenyl ring, or are in the form of two phenyl rings connected by an alkylene bridge; each position ortho to an imino group or an amino group bears a hydrocarbyl group. When in the form of one phenyl ring, there are two imino groups on the ring or two amino groups on the ring; the imino groups or amino groups are meta or para relative to each other. When in the form of two phenyl rings connected by an alkylene bridge, there is either one imino group or one amino group on each phenyl ring. Also provided are processes for forming diimines and secondary diamines.Type: GrantFiled: March 27, 2006Date of Patent: October 30, 2007Assignee: Albemarle CorporationInventors: John Y. Lee, Paul L. Wiggins, Judit Orgad, Mahmood Sabahi, Vernon O. Brandt