Patents Represented by Attorney Alan Holler
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Patent number: 6509494Abstract: A process is provided for preparing a low odor composition containing a dicyclopentenyl ester including the steps of preparing a distillation mixture containing the dicyclopentenyl ester and from 10 to 10,000 parts per million by weight based on weight of the dicyclopentenyl ester, of a suitable inhibitor; distilling the distillation mixture at a temperature in the range of 140° C. to 250° C.; collecting a first distillation fraction of the dicyclopentenyl ester; and then collecting a second distillation of the dicyclopentenyl ester; wherein the level of dicyclopentenyloxy(meth)acrylate in the second distillation fraction is in the range of 0 to 0.2 weight %, based on the weight of the dicyclopentenyl ester in the second distillation fraction. The second distillation fraction provides a low odor composition of the dicyclopentenyl ester which is useful as a reactive coalescent.Type: GrantFiled: February 23, 2000Date of Patent: January 21, 2003Assignee: Rohm and Haas CompanyInventor: William David Weir
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Patent number: 6506930Abstract: A process for preparing alkyl acrylates is disclosed. The process provides for the synthesis of alkyl (meth)acrylates, hydrolysis of process impurities into starting materials and separation of starting materials and reaction products in one reactor.Type: GrantFiled: October 13, 1999Date of Patent: January 14, 2003Assignee: Rohm and Haas CompanyInventors: Jeremia Jesaja Venter, Mario Giuseppe Luciano Mirabelli
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Patent number: 6504053Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.Type: GrantFiled: May 14, 2002Date of Patent: January 7, 2003Assignee: Rohm and Haas CompanyInventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
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Patent number: 6499412Abstract: The present invention provides a novel method of controlling the incineration temperature of industrial waste incineration processes such that the incineration emissions products comply with governmental regulations and operating and capital costs are minimal. Modifying the incineration temperature in response to changes in the emission products and the waste streams results in optimal and reliable control of the incineration process and the resultant incineration emissions. Capital and operating costs are reduced significantly as a result.Type: GrantFiled: August 28, 2001Date of Patent: December 31, 2002Assignee: Rohm and Haas CompanyInventors: Mayra Rodriguez Cochran, Charles Anthony Dafft, Michael Stanley DeCourcy, James Edward Elder, John Edward Henderson, Frederick Paul Fendt
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Patent number: 6500982Abstract: This invention relates to a process for preparing (meth)acrylic acid, whereby turndown control is utilized to maintain optimal distillation column performance in the dehydration of aqueous (meth)acrylic acid to provide a (meth)acrylic acid solution.Type: GrantFiled: June 13, 2000Date of Patent: December 31, 2002Assignee: Rohm and Haas CompanyInventors: Timothy Allen Hale, Robert Michael Mason, Josefina Tseng Chapman, James Clarence Day, Chorng-Shyuan Tsay
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Patent number: 6472552Abstract: A promoted multi-metal oxide catalyst is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile.Type: GrantFiled: March 12, 2002Date of Patent: October 29, 2002Assignee: Rohm and Haas CompanyInventor: Leonard Edward Bogan, Jr.
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Patent number: 6461996Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.Type: GrantFiled: August 10, 2001Date of Patent: October 8, 2002Assignee: Rohm and Haas CompanyInventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
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Patent number: 6407031Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.Type: GrantFiled: August 11, 2001Date of Patent: June 18, 2002Assignee: Rohm and Haas CompanyInventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
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Patent number: 6407280Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.Type: GrantFiled: August 10, 2001Date of Patent: June 18, 2002Assignee: Rohm and Haas CompanyInventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
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Patent number: 6403525Abstract: A catalyst comprising an in promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrileType: GrantFiled: August 10, 2001Date of Patent: June 11, 2002Assignee: Rohm and Haas CompanyInventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Elsie Mae Vickery
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Patent number: 6399040Abstract: This invention relates to a process for generating recoverable sulfur containing compounds, e.g., sulfur dioxide, from a spent sulfuric acid stream by combusting and/or thermally decomposing the spent sulfuric acid stream in a furnace. The spent sulfuric acid stream is sprayed into the furnace through a spray nozzle designed to minimize the spent sulfuric acid droplet size, e.g., to produce droplets having a Sauter mean diameter of from 200 micrometers to 700 micrometers.Type: GrantFiled: June 1, 2000Date of Patent: June 4, 2002Assignee: Rohm and Haas CompanyInventors: Charles Anthony Dafft, Connie René White
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Patent number: 6399817Abstract: This invention relates to a process for preparing acrylic acid which utilizes an aqueous stream which includes recycled wastewater, at least part of which is stripped of undesirable components in a stripping column prior to being recycled to an acrylic acid absorber.Type: GrantFiled: March 1, 2000Date of Patent: June 4, 2002Assignee: Rohm and Haas CompanyInventors: Josefina Tseng Chapman, James Clarence Day, Donald Alan Ebert, Thomas Albert Kaminski, Robert Michael Mason, Chorng-Shyuan Tsay
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Patent number: 6387841Abstract: Disclosed are catalysts situated on a polyoxometallate support. Also disclosed are methods of preparing these catalysts and processes for the conversion of alkanes to unsaturated organic compounds using these catalysts.Type: GrantFiled: July 27, 2000Date of Patent: May 14, 2002Assignee: Rohm and Haas CompanyInventors: Anna. Marie Devlin, Anthony Frank Volpe, Jr.
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Patent number: 6384274Abstract: This invention relates to an improved process for preparing acrylic acid from propylene using a single reactor utilizing an increased amount of propylene reactant thereby providing increased capacity and throughput.Type: GrantFiled: February 4, 1999Date of Patent: May 7, 2002Assignee: Rohm and Haas CompanyInventors: James Edward Elder, Charles Michael Lonzetta, Timothy Allen Hale, John Dempster Sornson, Peter David Klugherz, Thomas Albert Kaminski, Donald Alan Ebert
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Patent number: 6383978Abstract: A promoted multi-metal oxide catalyst is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile.Type: GrantFiled: August 9, 2001Date of Patent: May 7, 2002Assignee: Rohm and Haas CompanyInventor: Leonard Edward Bogan, Jr.
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Patent number: 6300407Abstract: An elastomer composition, including: at least one elastomer; a plasticizer which includes at least one polymeric material having a weighted average molecular weight of (Mw) of 500 to 1,000,000, formed from at least one ethylenically unsaturated monomer, and a curing agent, wherein the at least one polymeric material is substantially permanent within the elastomer. The subject elastomer compositions have enhanced plasticity and processability without attendant migration, heat or solvent extraction and compatibility problems.Type: GrantFiled: February 4, 1999Date of Patent: October 9, 2001Assignee: Rohm and Haas CompanyInventors: Warren Harvey Machleder, Robert Howard Gore, David Sterett Moorman, Michael Damian Bowe
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Patent number: 6221327Abstract: This invention relates to an improved catalyst system utilizing flow through radiation shielding of the reaction zone and to processes for using the catalyst system for the production of hydrogen cyanide. The process has decreased methane usage while maintaining yield of cyanide.Type: GrantFiled: March 16, 1999Date of Patent: April 24, 2001Assignee: Rohm and Haas CompanyInventors: Michael Stanley DeCourcy, Michael Gene Woody, Karen Ann Shaw, Joy Lyndon Mendoza
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Patent number: 6180825Abstract: A process for preparing a catalyst comprises: admixing metal compounds, at least one of which is an oxygen containing compound, and at least one solvent to form a solution; removing the solvent from the solution to obtain a catalyst precursor; and calcining the catalyst precursor under an inert atmosphere to form a catalyst having the formula AaMmNnXxOo wherein a, m, n, x and o are the molar proportions of A, M, N, X and O, respectively, and o is dependent on the oxidation state of the elements A, M, N and X, wherein A is Mo, W, Fe, Nb, Ta, Zr, Ru or mixtures thereof, M is V, Ce, Cr or mixtures thereof, N is Te, Bi, Sb, Se or mixtures thereof, and X is Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, Ce or mixtures thereof. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids.Type: GrantFiled: May 21, 1999Date of Patent: January 30, 2001Assignee: Rohm and Haas CompanyInventors: Manhua Lin, Michael William Linsen
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Patent number: 6180819Abstract: An improved process for producing n-butyl acrylate in high yield and high purity substantially free of acrylic acid, incorporates one or more of the following new process components in an acid-catalyzed esterification process for producing n-butyl acrylate: 1. A hydrolytic recovery component, wherein heavy end adducts produced during the acid-catalyzed esterification are hydrolyzed, recovered, and recycled as valuable reactants from a hydrolytic recovery unit (HRU); 2. A cracking reactor component, preferably used with the HRU, wherein additional valuable reactants are recovered and recycled after treatment in the cracking reactor; and 3. A new distillative component, wherein a crude n-butyl acrylate stream is efficiently distilled in an aqueous mode through an acrylic acid separation column, thereby providing n-butyl acrylate substantially free of acrylic acid and in high yield. The first two components also are applicable to acid-catalyzed processes producing C1 to C4 alkyl acrylates.Type: GrantFiled: August 6, 1999Date of Patent: January 30, 2001Assignee: Rohm and Haas CompanyInventors: William Bauer, Jr., Josefina Tseng Chapman, Mario Giuseppe Luciano Mirabelli, Jeremia Jesaja Venter