Patents by Inventor Richard W. Wegman
Richard W. Wegman 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: 8741173Abstract: A combination of calixarene bisphosphite ligand and an organophosphine ligand. The combination can be employed with a catalytic metal to form a complex catalyst. The catalyst can be employed in ahydroforaiylation process for producing a mixture of aldehydes.Type: GrantFiled: September 21, 2011Date of Patent: June 3, 2014Inventors: Michael A. Brammer, Richard W. Wegman
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Patent number: 8586800Abstract: A gas phase catalytic hydroformylation process for producing at least one aldehyde product in the presence of a transition metal-ligand complex hydroformylation catalyst and water vapor. Surprisingly, catalyst activity can be sustained by having traces of water vapor in the feed stream. Additionally, additional ligand can be added to replace lost ligand to maintain activity. In addition, it has been found that treatment of the catalyst with a buffer can rejuvenate catalyst activity.Type: GrantFiled: October 6, 2010Date of Patent: November 19, 2013Inventor: Richard W. Wegman
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Publication number: 20130204024Abstract: A combination of calixarene bisphosphite ligand and an organophosphine ligand. The combination can be employed with a catalytic metal to form a complex catalyst. The catalyst can be employed in a hydroforaiylation process for producing a mixture of aldehydes.Type: ApplicationFiled: September 21, 2011Publication date: August 8, 2013Applicant: DOW TECHNOLOGY INVESTMENTS LLCInventors: Michael A. Brammer, Richard W. Wegman
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Publication number: 20120190894Abstract: A gas phase catalytic hydroformylation process for producing at least one aldehyde product in the presence of a transition metal-ligand complex hydroformylation catalyst and water vapor. Surprisingly, catalyst activity can be sustained by having traces of water vapor in the feed stream. Additionally, additional ligand can be added to replace lost ligand to maintain activity. In addition, it has been found that treatment of the catalyst with a buffer can rejuvenate catalyst activity.Type: ApplicationFiled: October 6, 2010Publication date: July 26, 2012Inventor: Richard W. Wegman
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Patent number: 7767863Abstract: An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water.Type: GrantFiled: September 26, 2006Date of Patent: August 3, 2010Inventors: Jeffrey S. Sawrey, Richard W. Wegman
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Publication number: 20090306434Abstract: An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water.Type: ApplicationFiled: September 26, 2006Publication date: December 10, 2009Inventors: Jeffrey S. Sawrey, Richard W. Wegman
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Patent number: 5330955Abstract: A process and novel catalyst for the carbonylation of one or more of alcohols, ethers and ether alcohols to esters and, optionally, to carboxylic acids. The reaction is effected in the vapor state over a solid catalyst comprising a polyoxometalate anion in which the metal is at least one taken from Group V and VI of the Periodic Chart of the Elements complexed with a cation from a member of Group VIIIA of the Periodic Chart of the Elements. Preferably, the catalyst is deposited on a support that is inert to the reaction. The preferred support is silica.Type: GrantFiled: March 17, 1993Date of Patent: July 19, 1994Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Richard W. Wegman
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Patent number: 5298472Abstract: A process for hydrogenating bound oxygen-containing organic feeds into their corresponding alcohols by contact with a coprecipitated copper-aluminum catalyst that has been activated by contact with reducing gas at a temperature that gradually increases.Type: GrantFiled: December 3, 1992Date of Patent: March 29, 1994Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard W. Wegman, David R. Bryant
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Patent number: 5218140Abstract: A process and novel catalyst for the carbonylation of one or more of alcohols, ethers and ether alcohols to esters and, optionally, to carboxylic acids. The reaction is effected in the vapor state over a solid catalyst comprising a polyoxometalate anion in which the metal is at least one taken from Group V and VI of the Periodic Chart of the Elements complexed with a cation from a member of Group VIIIA of the Periodic Chart of the Elements. Preferably, the catalyst is deposited on a support that is inert to the reaction. The preferred support is silica.Type: GrantFiled: August 2, 1988Date of Patent: June 8, 1993Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Richard W. Wegman
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Patent number: 5191091Abstract: A process for hydrogenating bound oxygen-containing organic feeds into their corresponding alcohols by contact with a coprecipitated copper-aluminum catalyst that has been activated by contact with reducing gas at a temperature that gradually increases.Type: GrantFiled: January 27, 1992Date of Patent: March 2, 1993Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard W. Wegman, David R. Bryant
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Patent number: 5142067Abstract: A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper, aluminum, and a metal (X) selected from the group consisting of magnesium, zinc, titanium, zirconium, tin, nickel, cobalt and mixtures thereof; that has been reduced with an increasing temperature during the reduction.Type: GrantFiled: November 5, 1991Date of Patent: August 25, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard W. Wegman, David R. Bryant
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Patent number: 5053380Abstract: A process for hydrogenating bound oxygen-containing organic feeds into their corresponding alcohols by contact with a coprecipitated copper-aluminum catalyst that has been activated by contact with reducing gas at a temperature that gradually increases.Type: GrantFiled: December 21, 1989Date of Patent: October 1, 1991Assignee: Union Carbide Chemicals and Plastics Technology CorporationInventors: Richard W. Wegman, David R. Bryant
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Patent number: 5051456Abstract: A process for removing diene from ethylene propylene diene monomer resin by subjecting said resin containing diene monomer to microwave energy in an amount for a time sufficient to evolve diene vapors while simultaneously passing a gas through said resin to removing said evolved diene vapors.Type: GrantFiled: March 30, 1990Date of Patent: September 24, 1991Assignee: Union Carbide Chemicals and Plastics Technology CorporationInventors: Robert J. N. Bernier, David N. Edwards, Richard W. Wegman
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Patent number: 5026907Abstract: A process for the production of organic carboxylic acids and organic carboxylic acid anhydrides by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with an organic ester source and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.Type: GrantFiled: November 6, 1985Date of Patent: June 25, 1991Assignee: Union Carbide Chemicals and Plastics Technology CorporationInventors: Richard W. Wegman, David J. Schreck
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Patent number: 5008235Abstract: A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper, aluminum, and a metal (X) selected from the group consisting of magnesium, zinc, titanium, zirconium, tin, nickel, cobalt and mixtures thereof; that has been reduced with an increasing temperature during the reduction.Type: GrantFiled: December 21, 1989Date of Patent: April 16, 1991Assignee: Union Carbide Chemicals and Plastics Technology CorporationInventors: Richard W. Wegman, David R. Bryant
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Patent number: 4990654Abstract: A process for the production of acetate esters by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.O) oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen promoter, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'; and wherein ROH is methanol or a mixture of methanol and at least one higher alcohol.Type: GrantFiled: January 4, 1990Date of Patent: February 5, 1991Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Richard W. Wegman
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Patent number: 4927967Abstract: A process for the production of organic carboxylic acids by the catalytic reaction of organic formate esters in contact with carbon monoxide and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group in said Z group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen source, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'.Type: GrantFiled: November 6, 1985Date of Patent: May 22, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Richard W. Wegman
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Patent number: 4727200Abstract: A process for the homologation of an alkanol by reaction with synthesis gas in contact with a system containing rhodium atom, ruthenium atom, iodine atom and a bis(diorganophosphino) alkane to selectivity produce the next higher homologue.Type: GrantFiled: March 27, 1987Date of Patent: February 23, 1988Assignee: Union Carbide CorporationInventors: Richard W. Wegman, Kenneth G. Moloy
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Patent number: 4670570Abstract: A process for the production of organic carboxylic acids by the catalytic reaction of an alcohol and, carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## in said Z group is located at least one carbon atom removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen promoter, under mild reaction conditions, wherein R' is aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R' or --H.Type: GrantFiled: July 31, 1986Date of Patent: June 2, 1987Assignee: Union Carbide CorporationInventors: Richard W. Wegman, Anthony G. Abatjoglou
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Patent number: 4594463Abstract: A catalyst has been found for the low pressure hydroformylation of alcohols to produce aldehydes. This catalyst consists of a rhodium containing compound, an iodide containing compound, and a chelating Group V compound, which is used alone or in combination with a monodentate, Group V compound.It is the first rhodium-based catalyst that generates acetaldehyde via hydroformylation of the methanol. The reaction is typically carried out at 160.degree.-180.degree. C. and 1000-2000 psi. The acetaldehyde rate and selectivity are 1-5 Mhr.sup.-1 and 50-75%. Conventional cobalt catalysts require operating pressures of at least 3000-6000 psi in order to obtain reasonable productivities.Type: GrantFiled: January 28, 1985Date of Patent: June 10, 1986Assignee: Union Carbide CorporationInventors: Richard W. Wegman, Deborah S. Miller