Patents by Inventor Stephen H. Harris
Stephen H. Harris 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: 8309758Abstract: A process for purifying allyl acetate is disclosed. An acetoxylation mixture is distilled at elevated pressure to remove propylene and generate a first bottoms mixture comprising allyl acetate, acetic acid, acrolein, allyl diacetate, and 3-acetoxypropionaldehyde. The first bottoms mixture is flash vaporized, and the resulting vapor is contacted with a solid acidic catalyst under conditions effective to decompose allyl diacetate and 3-acetoxypropionaldehyde. The flashed product, which comprises allyl acetate, acetic acid, and acrolein, is then distilled to remove acrolein and generate a second bottoms mixture comprising allyl acetate and acetic acid. The second bottoms mixture can be used to manufacture allyl alcohol.Type: GrantFiled: December 17, 2009Date of Patent: November 13, 2012Assignee: Lyondell Chemical Technology, L.P.Inventors: Stephen H. Harris, Shaw-Chan Lin
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Publication number: 20110152568Abstract: A process for purifying allyl acetate is disclosed. An acetoxylation mixture is distilled at elevated pressure to remove propylene and generate a first bottoms mixture comprising allyl acetate, acetic acid, acrolein, allyl diacetate, and 3-acetoxypropionaldehyde. The first bottoms mixture is flash vaporized, and the resulting vapor is contacted with a solid acidic catalyst under conditions effective to decompose allyl diacetate and 3-acetoxypropionaldehyde. The flashed product, which comprises allyl acetate, acetic acid, and acrolein, is then distilled to remove acrolein and generate a second bottoms mixture comprising allyl acetate and acetic acid. The second bottoms mixture can be used to manufacture allyl alcohol.Type: ApplicationFiled: December 17, 2009Publication date: June 23, 2011Inventors: Stephen H. Harris, Shaw-Chan Lin
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Publication number: 20100197977Abstract: A process for purifying an acetoxylation mixture is disclosed. Allyl acetate, water, acetic acid, and from 0.1 to 10 wt. % allyl diacetate are contacted in the vapor phase with a solid acidic catalyst under conditions effective to decompose the allyl diacetate and generate an intermediate stream comprising allyl acetate, water, acetic acid, and acrolein. Acrolein is then removed from the intermediate stream, preferably by distillation, to give an allyl acetate-containing product stream. Usually, this product stream is then hydrolyzed to produce allyl alcohol. The invention includes processes in which propylene first reacts with oxygen and acetic acid in the presence of a noble metal catalyst to generate the acetoxylation mixture.Type: ApplicationFiled: February 5, 2009Publication date: August 5, 2010Inventor: Stephen H. Harris
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Patent number: 7524988Abstract: A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting an acetic acid stream containing aldehyde impurities with a hydroxyl compound to form corresponding acetals. The acetals are subsequently removed from the acetic acid by, e.g., distillation.Type: GrantFiled: August 1, 2006Date of Patent: April 28, 2009Assignees: Lyondell Chemical Technology, L.P., Millennium Petrochemicals Inc.Inventors: Stephen H. Harris, Brian A. Salisbury, Ronnie M. Hanes
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Publication number: 20080033206Abstract: A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting an acetic acid stream containing aldehyde impurities with a hydroxyl compound to form corresponding acetals. The acetals are subsequently removed from the acetic acid by, e.g., distillation.Type: ApplicationFiled: August 1, 2006Publication date: February 7, 2008Inventors: Stephen H. Harris, Brian A. Salisbury, Ronnie M. Hanes
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Patent number: 7259280Abstract: A process for producing an alkenyl alcohol from a diol is disclosed. The process comprises dehydrating a diol in the presence of a catalyst comprising cerium oxide supported on a carrier. The carrier has a surface area in the range of 0.1 to 50 m2/g. The catalyst is more active than unsupported cerium oxide.Type: GrantFiled: March 22, 2006Date of Patent: August 21, 2007Assignee: Lyondell Chemical Technology, L.P.Inventors: Andrew P. Kahn, Stephen H. Harris
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Patent number: 7253305Abstract: Esters are formed by reaction of acetic anhydride with tertiary butyl or tertiary anyl alcohol in the presence of tertiary amine catalyst such as DMAP or NMI catalyst and acetic acid in amount sufficient to present catalyst degradation; in preferred practice a mixed acetic anhydride and acetic acid stream is recycled to the esterfication.Type: GrantFiled: July 26, 2005Date of Patent: August 7, 2007Inventor: Stephen H. Harris
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Patent number: 6930143Abstract: An acrylic emulsion is disclosed. The emulsion comprises from about 30% to about 90% by weight of water, about 10% to about 70% by weight of an acrylic polymer, about 0.2% to about 10% by weight of a emulsifying agent, and up to 20% by weight of an organic solvent. The acrylic polymer contains from about 20% to about 80% by weight of recurring units of t-butyl acrylate or methacrylate. Latex coatings formulated from the acrylic emulsion show significantly improved resistance to moisture and corrosion.Type: GrantFiled: November 1, 2001Date of Patent: August 16, 2005Assignee: Arco Chemical Technology, L.P.Inventors: Stephen H. Harris, Daniel B. Pourreau
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Patent number: 6906136Abstract: A UV-curable composition is disclosed. The composition comprises a crosslinking agent, a hydroxyalkyl acrylate or methacrylate, and an acrylic polyol. The crosslinking agent is selected from the group consisting of multifunctional isocyanates, melamines, and silanes. The acrylic polyol comprises recurring units of an allylic alcohol. The composition can be irradiated to be solidified and then fully cured by the urethane, melamine, or silane reactions. Alternatively, the composition can be cured by the urethane, melamine, or silane reactions, and then fully cured by radiation. The invention provides low VOC but high performance coatings. More importantly, the invention provides a UV-curable system without the need for acrylated oligomers.Type: GrantFiled: April 22, 2003Date of Patent: June 14, 2005Assignee: Arco Chemical Technology, L.P.Inventors: Daniel B. Pourreau, Shanti P. Patel, L. Joseph Junker, Wei Wang, Stephen H. Harris, Shao-Hua Guo
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Publication number: 20040214980Abstract: A UV-curable composition is disclosed. The composition comprises a crosslinking agent, a hydroxyalkyl acrylate or methacrylate, and an acrylic polyol. The crosslinking agent is selected from the group consisting of multifunctional isocyanates, melamines, and silanes. The acrylic polyol comprises recurring units of an allylic alcohol. The composition can be irradiated to be solidified and then fully cured by the urethane, melamine, or silane reactions. Alternatively, the composition can be cured by the urethane, melamine, or silane reactions, and then fully cured by radiation. The invention provides low VOC but high performance coatings. More importantly, the invention provides a UV-curable system without the need for acrylated oligomers.Type: ApplicationFiled: April 22, 2003Publication date: October 28, 2004Inventors: Daniel B. Pourreau, Shanti P. Patel, L. Joseph Junker, Wei Wang, Stephen H. Harris, Shao-Hua Guo
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Patent number: 6780951Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.Type: GrantFiled: December 9, 2002Date of Patent: August 24, 2004Assignee: Arco Chemical Technology, L.P.Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
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Patent number: 6762262Abstract: A method for making a low-yellowing acrylic polyol is disclosed. The acrylic polyol has an APHA color increase less than 100% when it is mixed with 1.5 wt % of an UV light stabilizer. The method comprises free radically copolymerizing an allylic alcohol, an alkyl acrylate or methacrylate, and optionally a vinyl comonomer selected from the group consisting of vinyl aromatic, vinyl ethers, and vinyl esters in an initiator concentration less than or equal to 0.8 wt % of the total amount of monomers.Type: GrantFiled: September 23, 2003Date of Patent: July 13, 2004Assignee: Arco Chemical Technology, L.P.Inventors: Wei Wang, Stephen H. Harris
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Publication number: 20030130469Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.Type: ApplicationFiled: December 9, 2002Publication date: July 10, 2003Applicant: ARCO Chemical Technology, L.P.Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
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Publication number: 20030125493Abstract: (Meth)acrylate esters of oxyalkylated aralkylated, multi-ring phenolic hydroxyl-containing compounds may be prepared with relatively low viscosity, and are effective as coating composition additives, in particular as adhesion promoters.Type: ApplicationFiled: October 26, 2001Publication date: July 3, 2003Inventors: Stephen H. Harris, Carmen L. Rodriguez
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Publication number: 20030083431Abstract: An acrylic emulsion is disclosed. The emulsion comprises from about 30% to about 90% by weight of water, about 10% to about 70% by weight of an acrylic polymer, about 0.2% to about 10% by weight of a emulsifying agent, and up to 20% by weight of an organic solvent. The acrylic polymer contains from about 20% to about 80% by weight of recurring units of t-butyl acrylate or methacrylate. Latex coatings formulated from the acrylic emulsion show significantly improved resistance to moisture and corrosion.Type: ApplicationFiled: November 1, 2001Publication date: May 1, 2003Inventors: Stephen H. Harris, Daniel B. Pourreau
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Patent number: 6555596Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.Type: GrantFiled: November 6, 2000Date of Patent: April 29, 2003Assignee: Arco Chemical Technology, L.P.Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
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Patent number: 5585077Abstract: An aqueous epoxidation process stream containing molybdenum and sodium values and organics is treated for organics removal as by incineration and an aqueous solution containing molybdenum and sodium is recovered, acidified and reacted with a calcium compound to form solid CaMoO.sub.4 which is separated.Type: GrantFiled: August 3, 1995Date of Patent: December 17, 1996Assignee: ARCO Chemical Technology, L.P.Inventors: Thomas I. Evans, Stephen H. Harris
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Patent number: 5552024Abstract: A process for making and purifying dipropylene glycol tert-butyl ethers (DPTB). DPTB is made by reacting dipropylene glycol with isobutylene in the presence of an acidic catalyst. Extractive distillation of the product mixture using a glycol extracting agent, preferably dipropylene glycol, allows removal of di-tert-butyl ether impurities as an overhead product. The DPTB product is then distilled to separate it from the glycol extracting agent. High-purity DPTB, substantially free of diethers and exceptionally useful as a solvent, is obtained from the process.Type: GrantFiled: February 28, 1994Date of Patent: September 3, 1996Assignee: ARCO Chemical Technology, L.P.Inventors: Te Chang, Stephen H. Harris
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Patent number: 5538599Abstract: A process is provided whereby phenol is separated from 1-phenyl ethanol, acetophenone or mixtures by extractive distillation with sulfolane as extractive distillation agent which decreases phenol volatility relative to 1-phenyl ethanol and acetophenone.Type: GrantFiled: June 5, 1995Date of Patent: July 23, 1996Assignee: ARCO Chemical Technology, L.P.Inventors: Tim T. Wong, Stephen H. Harris, Thomas S. Zak, Te Chang
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Patent number: 5512313Abstract: Reduced calorie food compositions are prepared using fatty acid esterified alkoxylated polyol fat substitutes derived from C.sub.3 and higher epoxides and having a high proportion of primary ester linkages. The fat substitutes may be obtained by alkoxylation of a polyol such as glycerin with the epoxide in the presence of a cationic/ring-opening polymerization catalyst, followed by esterification with a fatty acid or a fatty acid equivalent.Type: GrantFiled: December 8, 1994Date of Patent: April 30, 1996Assignees: ARCO Chemical Technology, L.P., CPC International Inc.Inventors: Charles F. Cooper, Stephen H. Harris