Patents by Inventor Tina L. Arrowood
Tina L. Arrowood 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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Publication number: 20150151255Abstract: A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the step of applying the polyfunctional acyl halide monomer to the porous support includes the step of combining the polyfunctional acyl halide monomer with a non-polar solvent at a concentration of at least 0.18 weight percent to form a coating solution which is applied to the surface of the porous support, and wherein the interfacial polymerization is conducted in the presence of a tri-hydrocarbyl phosphate compound which is provided in a molar ratio of at least 0.5:1 with the polyfunctional acyl halide monomer. Many additional embodiments are described including membranes made from the subject method and applications for such membranes.Type: ApplicationFiled: July 3, 2013Publication date: June 4, 2015Applicant: Dow Global Technologies LLCInventors: Abhishek Roy, Tina L. Arrowood, Robert C. Cieslinski, Derek M. Stevens, David D. Hawn, Steven D. Jons, Mou Paul, Martin H. Peery, Steven Rosenberg, Ian A. Tomlinson
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Publication number: 20150147470Abstract: A method for making a composite polyamide membrane including a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and a tetraacyl acyl halide monomer represented by Formula (I) to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer; wherein A is selected from: oxygen (—O—); carbon (—C—); silicon (—Si—); each of which may be unsubstituted or substituted, e.g. with alkyl groups of 1-4 carbon atoms; or a carbonyl group (—C(O)—), X is the same or different and is selected from a halogen, and Y is selected from halogen and hydroxide.Type: ApplicationFiled: July 3, 2013Publication date: May 28, 2015Applicant: Dow Global Technologies LLCInventors: Tina L. Arrowood, Aman A. Desai, Steven D. Jons, Mou Paul, Abhishek Roy
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Publication number: 20150129485Abstract: A thin film composite membrane including a porous support and a thin film polyamide layer characterized by having a dissociated carboxylate content of at least 0.45 moles/kg at pH 9.5 and a method for making a composite polyamide applying a polar solution comprising a polyfunctional amine monomer and a non-polar solution comprising a polyfunctional amine-reactive monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by the non-polar solution comprising at least 0.025 wt % of an acid compound including at least one carboxylic acid moiety and at least one amine-reactive moiety selected from acyl halide and anhydride.Type: ApplicationFiled: July 3, 2013Publication date: May 14, 2015Applicants: DOW GLOBAL TECHNOLOGIES LLC, DOW GLOBAL TECHNOLOGIES LLC, THE DOW CHEMICAL COMPANYInventors: Abhishek Roy, Tina L. Arrowood, Robert C. Cieslinski, David D. Hawn, Steven D. Jons, Mou Paul, Martin H. Peery, XiaoHua Qiu, Steven Rosenberg, Ian A. Tomlinson, Chengli Zu
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Patent number: 8999449Abstract: A method for making a composite polyamide membrane including the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by: i) conducting the interfacial polymerization in the presence of an aromatic anhydride monomer include at least one sulfonyl halide functional group, or ii) applying the aromatic anhydride monomer to the thin film polyamide layer.Type: GrantFiled: March 5, 2014Date of Patent: April 7, 2015Assignee: Dow Global Technologies LLCInventors: Mou Paul, Tina L. Arrowood, Duane R. Romer
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Patent number: 8975446Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: GrantFiled: February 25, 2010Date of Patent: March 10, 2015Assignee: Dow Global Technologies LLCInventors: Tina L. Arrowood, Paul R. Elowe, Derrick W. Flick, Jason C. MacDonald
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Patent number: 8907137Abstract: A process comprising contacting a polyhydric phenol or a polyaliphatic alcohol with an epihalohydrin in the presence of a catalyst comprising a Schiff base metal complex is disclosed.Type: GrantFiled: February 25, 2010Date of Patent: December 9, 2014Assignee: Dow Global Technologies LLCInventors: Philip J. Carlberg, Thomas C. Young, Tina L. Arrowood, Ernesto Occhiello, Paul R. Elowe, Jason C. MacDonald
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Publication number: 20140295078Abstract: A method for making a composite polyamide membrane including the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by: i) conducting the interfacial polymerization in the presence of an aromatic anhydride monomer include at least one sulfonyl halide functional group, or ii) applying the aromatic anhydride monomer to the thin film polyamide layer.Type: ApplicationFiled: March 5, 2014Publication date: October 2, 2014Inventors: Mou Paul, Tina L. Arrowood, Duane R. Romer
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Patent number: 8835348Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: GrantFiled: February 25, 2010Date of Patent: September 16, 2014Assignee: Dow Global Technologies LLCInventors: Tina L. Arrowood, Jason C. MacDonald
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Patent number: 8748336Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: GrantFiled: February 25, 2010Date of Patent: June 10, 2014Assignee: Dow Global Technologies LLCInventors: Tina L. Arrowood, Paul R. Elowe, Jason C. MacDonald, Ernesto Occhiello
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Publication number: 20130109872Abstract: There is provided a process for manipulating the amount of alkyl alcohol in a product stream, e.g., such as an alkylene oxide product stream. More particularly, and in contrast to conventional processes wherein substantially all of the alkyl alcohol must be separated and desirably recycled, in the present process, a greater amount of alkyl alcohol may be allowed to remain in a partially refined alkylene oxide product stream. The residual alkyl alcohol is subsequently substantially entirely reacted to form a downstream product, e.g., a glycol ether, which is more easily separated from the alkylene oxide product stream. Indeed, the amount of alkyl alcohol in the partially refined alkylene oxide product stream can be selected based upon the output of glycol ethers, if desired.Type: ApplicationFiled: June 28, 2011Publication date: May 2, 2013Applicant: Dow Global Technologies, LLCInventors: Tina L. Arrowood, John F. Ford, Derrick W. Flick
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Publication number: 20130066091Abstract: A process for producing a chlorohydrin, an ester of a chlorohydrin, or a mixture thereof including the steps of contacting, in a hydrochlorination reactor, a multihydroxylated aliphatic hydrocarbon, an ester of a multihydroxylated aliphatic hydrocarbon, or a mixture thereof with a source of a hydrogen chloride, in the presence of a hydrophobic or extractable carboxylic acid catalyst is provided.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicant: Dow Global Technologies LLCInventors: Tina L. Arrowood, William J. Kruper, JR., John R. Briggs
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Publication number: 20120035383Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: ApplicationFiled: February 25, 2010Publication date: February 9, 2012Inventors: Tina L. Arrowood, Jason C. MacDonald
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Publication number: 20120029246Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: ApplicationFiled: February 25, 2010Publication date: February 2, 2012Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Tina L. Arrowood, Paul R. Elowe, Derrick W. Flick, Jason C. MacDonald
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Publication number: 20110301323Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: ApplicationFiled: February 25, 2010Publication date: December 8, 2011Applicant: Dow Global Tecnologies LLCInventors: Tina L. Arrowood, Paul R. Elowe, Jason C. MacDonald, Ernesto Occhiello
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Publication number: 20110301366Abstract: A process comprising contacting a polyhydric phenol or a polyaliphatic alcohol with an epihalohydrin in the presence of a catalyst comprising a Schiff base metal complex is disclosed.Type: ApplicationFiled: February 25, 2010Publication date: December 8, 2011Applicant: Dow Technologies LLCInventors: Philip J. Carlberg, Thomas C. Young, Tina L. Arrowood, Ernesto Occhiello, Paul R. Elowe, Jason C. MacDonald
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Publication number: 20110297877Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: ApplicationFiled: February 25, 2010Publication date: December 8, 2011Applicant: Dow Global Technologies LLCInventors: Tina L. Arrowood, Marty W. Degroot, Paul R. Elowe, Derrick W. Flick, Jason C. MacDonald, Peter N. Nickias, Daniel E. Verral