Patents by Inventor Katty Darragas
Katty Darragas 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: 11198756Abstract: The present disclosure provides a curable composition that includes an epoxy resin and a curing component comprising a blend of at least two amines. The curable composition may be combined with reinforced fibers and cured to form a composite article which can be used in various applications, such as in wind turbine blades.Type: GrantFiled: June 16, 2017Date of Patent: December 14, 2021Assignee: HUNTSMAN Petrochemical LLCInventors: Hui Zhou, David C Lewis, Howard P. Klein, Robert A. Grigsby, Feixia Chen, Katty Darragas
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Publication number: 20190100616Abstract: The present disclosure provides a curable composition that includes an epoxy resin and a curing component comprising a blend of at least two amines. The curable composition may be combined with reinforced fibers and cured to form a composite article which can be used in various applications, such as in wind turbine blades.Type: ApplicationFiled: June 16, 2017Publication date: April 4, 2019Inventors: Hui Zhou, David C Lewis, Howard P. Klein, Robert A. Grigsby, Feixia Chen, Katty Darragas
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Patent number: 9067865Abstract: The present invention relates to an etheramine mixture containing a monoether diamine and its method of production by alkoxylating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the etheramine mixture. The etheramine mixture may be used in variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea.Type: GrantFiled: December 21, 2010Date of Patent: June 30, 2015Assignee: HUNTSMAN PETROCHEMICAL LLCInventors: Howard P. Klein, Terry L. Renken, Martin J. Renner, Bruce L. Burton, Katty Darragas
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Patent number: 9054313Abstract: The present invention relates to an etheramine mixture containing a monoether diamine and its method of production by alkyloxating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the etheramine mixture. The etheramine mixture may be used in variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea materials.Type: GrantFiled: December 21, 2010Date of Patent: June 9, 2015Assignee: HUNTSMAN PETROCHEMICAL LLCInventors: Howard P. Klein, Terry L. Renken, Martin J. Renner, Bruce L. Burton, Katty Darragas
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Publication number: 20130165620Abstract: The present invention relates to an etheramine mixture containing a monoether diamine and its method of production by alkyloxating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the etheramine mixture. The etheramine mixture may be used in variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea materials.Type: ApplicationFiled: December 21, 2010Publication date: June 27, 2013Applicant: Huntsman Petrochemical LLCInventors: Howard P. Klein, Terry L. Renken, Martin J. Renner, Bruce L. Burton, Katty Darragas
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Publication number: 20120283405Abstract: The present invention relates to an etheramine mixture containing a monoether diamine and its method of production by alkyloxating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the etheramine mixture. The etheramine mixture may be used in variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea materials.Type: ApplicationFiled: December 21, 2010Publication date: November 8, 2012Applicant: Huntsman Petrochemical LLCInventors: Howard P. Klein, Terry L. Renken, Martin J. Renner, Bruce L. Burton, Katty Darragas
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Publication number: 20120259075Abstract: The present invention relates to an etheramine mixture containing a monoether diamine and its method of production by alkoxylating an initiator with an alkylene oxide to produce a precursor polyol and reductively aminating the precursor polyol to form the etheramine mixture. The etheramine mixture may be used in variety of applications including as a curing agent for an epoxy resin or as a reactant in the production of polyurea.Type: ApplicationFiled: December 21, 2010Publication date: October 11, 2012Applicant: HUNTSMAN PETROCHEMICAL LLCInventors: Howard P. Klein, Terry L. Renken, Martin J. Renner, Bruce L. Burton, Katty Darragas
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Publication number: 20120077950Abstract: A compound according to the present invention is obtainable by reacting a polyisocyanate with a monoalkylether of a polyoxyalkylenemonoamine, in such an amount that substantially no free isocyanate groups are present in the component. The polyisocyanate itself is an adduct of two polyisocyanate molecules with one isocyanate reactive molecule chosen from the group consisting of a polyoxyalkylene diamine, a polyoxyalkylene diol, a polyoxyalkylenealkanolamine, a polyester diamine, a polyester diol and a polyesteralkanolamine, the average molecular weight of the isocyanate reactive molecule being more than 1000.Type: ApplicationFiled: May 21, 2010Publication date: March 29, 2012Applicant: Huntsman International LLCInventors: Katty Darragas, Koen Gebruers
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Publication number: 20070079731Abstract: Provided herein are catalysts useful in the curing of cementitious mixtures, which catalysts comprise one or more alkylene carbonates in combination with glycerin carbonate. Through use of a catalyst according to the present invention, cementitious mixtures containing sodium silicate may be cured at low temperatures because the catalysts of the invention function well at low temperatures, even though they contain ethylene carbonate, a material whose melting point of 36° C. otherwise precludes its use as a cure accelerant for silicates. FIG. 1 is a graphical representation of the results shown in Table II.Type: ApplicationFiled: November 2, 2004Publication date: April 12, 2007Applicant: Huntsman Petrochemical CorporationInventors: John Clements, Katty Darragas, Howard Klein
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Patent number: 6482270Abstract: A composition useful as a paint remover. The composition may include a carbonate, a dibasic ester and a mono-ester. The composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.Type: GrantFiled: November 1, 2000Date of Patent: November 19, 2002Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Edward T. Marquis, Susan A. Woodrum, Katty Darragas
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Patent number: 6479593Abstract: Provided herein are cross-linked super absorbing polymers made by reacting a copolymer having an esterifiable acid group with a cyclic alkylene carbonate. The resulting cross-linked materials have an increased ability to retain absorbed liquids even under the influence of applied stress. Catalysts are also disclosed which are useful in promoting the reaction between the alkylene carbonate and copolymer.Type: GrantFiled: September 10, 2001Date of Patent: November 12, 2002Assignee: Huntsman Petrochemical CorporationInventors: John H. Clements, Howard P. Klein, Edward T. Marquis, James R. Machac, Jr., Katty Darragas
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Publication number: 20020151432Abstract: Provided herein are cross-linked super absorbing polymers made by reacting a copolymer having an esterifiable acid group with a cyclic alkylene carbonate. The resulting cross-linked materials have an increased ability to retain absorbed liquids even under the influence of applied stress. Catalysts are also disclosed which are useful in promoting the reaction between the alkylene carbonate and copolymer.Type: ApplicationFiled: September 10, 2001Publication date: October 17, 2002Applicant: Huntsman Petrochemical CorporationInventors: John H. Clements, Howard P. Klein, Edward T. Marquis, James R. Machac, Katty Darragas
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Patent number: 6239090Abstract: A thickened composition and process useful for removing paint, comprising: a carbonate such as propylene carbonate or ethylene carbonate, a thickener such as polyvinyl pyrrolidone (PVP), hydrogen peroxide and water. The composition may include additional cosolvents such as glycol ethers and alcohols such as benzyl alcohol, and/or dibasic ester (DBE).Type: GrantFiled: December 10, 1999Date of Patent: May 29, 2001Assignee: Huntsman Petrochemical CorporationInventors: Edward T. Marquis, Robert E. Baldwin, James R. Machac, Jr., Katty Darragas, Susan Aileen Woodrum
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Patent number: 6159915Abstract: A composition useful as a paint remover. The composition may include a carbonate, a dibasic ester and a mono-ester. The composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.Type: GrantFiled: June 18, 1999Date of Patent: December 12, 2000Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Edward T. Marquis, Susan A. Woodrum, Katty Darragas