Patents by Inventor Francis J. Waller

Francis J. Waller 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).

  • Patent number: 5858030
    Abstract: A diesel fuel composition is set forth for an increased cetane number vis-a-vis conventional diesel fuel compositions. The composition generally comprises one or more compounds selected from the dialkoxy alkane (DAAK) chemical family. In a preferred embodiment of the present invention, the diesel fuel composition consists of moderate amounts of dimethoxy propane (DMPP) and dimethoxy ethane (DMET) blended into a conventional diesel fuel.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: January 12, 1999
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Francis J. Waller, Edward L. Weist, Jr., Dennis M. Brown, Petrus J. A. Tijm
  • Patent number: 5502243
    Abstract: Oxygenated acetyl compounds ethylidene diacetate, acetic acid, acetic anhydride, acetaldehyde, and methyl acetate are produced directly from synthesis gas and dimethyl ether in a catalyzed liquid phase reaction system. The inclusion of carbon dioxide in the synthesis gas in selected amounts increases the overall yield of oxygenated acetyl compounds from the reactant dimethyl ether. When methanol is included in the reactor feed, the addition of carbon dioxide significantly improves the molar selectivity to ethylidene diacetate.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: March 26, 1996
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Francis J. Waller, David W. Studer
  • Patent number: 5430212
    Abstract: A catalyst composition comprising a perfluorinated ion-exchange polymer containing sulfonic acid groups supported on an inert carrier having a hydrophobic surface with a mean pore diameter of at least 1000 .ANG.. Use of this catalyst provides improved hydrocarbon conversion processes for oligomerization of olefins, hydration of olefins and hydrolysis of esters.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 4, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin H. D. Butt, Francis J. Waller
  • Patent number: 5315033
    Abstract: A catalyst composition comprising a perfluorinated ion-exchange polymer containing sulfonic acid groups supported on an inert carrier having a hydrophobic surface with a mean pore diameter of at least 1000 .ANG.. Use of this catalyst provides improved hydrocarbon conversion processes for oligomerization of olefins, hydration of olefins and hydrolysis of esters.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: May 24, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin H. D. Butt, Francis J. Waller
  • Patent number: 5298650
    Abstract: The present invention is a process for producing organic esters wherein a dialkyl ether and a carboxylic acid are reacted in the presence of a solid phase acidic catalyst having an acidity factor of at least 0.30, preferably at least 1, under reaction conditions sufficient to form a reaction mixture comprising the desired organic ester and an alcohol and recovering the organic ester. For example, methyl acetate can be prepared by reacting dimethyl ether and acetic acid in the presence of montmorillonite, amorphous silica-alumina or .kappa.-alumina under conditions sufficient to form methyl acetate. While typical processes produce an azeotropic mixture of the desired organic ester and water, the claimed process utilizes a combination or reactants and catalysts wherein water is not produced in appreciable amounts. Therefore, the organic ester product can be separated conveniently thereby avoiding a cumbersome azeotropic distillation step as required in prior art processes.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: March 29, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Francis J. Waller, William F. Burgoyne, Jr.
  • Patent number: 5233077
    Abstract: N-vinyl-O-methyl carbamate is formed preferentially by heating dimethyl ethylidene dicarbamate in the liquid phase at a temperature of 155.degree. to 350.degree. C. and at a pressure which permits the vinyl carbamate to vaporize as it is formed. This vinyl carbamate is quickly condensed and can then be separated from the methyl carbamate which also emanates from the liquid phase. The yield of N-vinyl-O-methyl carbamate is enhanced by including carbon in the liquid phase in contact with the dimethyl ethylidene dicarbamate as it is pyrolyzed. Using carbon in the same manner is advantageous in producing other lower alkyl N-vinyl-O-alkyl carbamates. Preferably the carbon has a surface area of 300 to 1500 m.sup.2 /g and is present in an amount such that the weight ratio of dialkyl ethylidene dicarbamate to carbon is in the range of 50 to 500. The product is a monomer which can be used in making amine-functional polymers.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: August 3, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Francis J. Waller
  • Patent number: 5233102
    Abstract: A catalyst composition comprising a perfluorinated ion-exchange polymer containing sulfonic acid groups supported on an inert carrier having a hydrophobic surface with a mean pore diameter of at least 1000 .ANG.. Use of this catalyst provides improved hydrocarbon conversion processes for oligomerization of olefins, hydration of olefins and hydrolysis of esters.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: August 3, 1993
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Martin H. D. Butt, Francis J. Waller
  • Patent number: 5227517
    Abstract: The present invention relates to a process for producing ethylidene diacetate (EDDA) wherein at least one process step comprises condensing a feedstock of acetaldehyde and acetic anhydride in the presence of acetic acid and an iodide catalyst selected from the group consisting of potassium iodide, lithium iodide, methyl iodide and mixtures thereof. In a preferred embodiment, EDDA is prepared in an integrated process wherein the previously mentioned feedback is prepared by reacting dimethyl ether and acetic acid to form a first intermediate product mixture and hydrocarbonylating the first intermediate product mixture to form the condensation feedstock.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: July 13, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Francis J. Waller
  • Patent number: 5214200
    Abstract: The present invention is a process for producing organic esters wherein a dialkyl ether and a carboxylic acid are reacted in the presence of a catalyst consisting essentially of an iodide of a Group IA element under reaction conditions sufficient to form a reaction mixture comprising the desired organic ester and an alcohol and recovering the ester from the reaction product mixture. For example, methyl acetate can be prepared by reacting dimethyl ether and acetic acid in the presence of a hydrogen iodide or lithium iodide catalyst under conditions sufficient to form methyl acetate and methanol. While typical processes produce an azeotropic mixture of the desired organic ester and water, the claimed process utilizes a combination or reactants and catalysts wherein water is not produced in appreciable amounts. Therefore, the organic ester product can be separated conveniently thereby avoiding a cumbersome azeotropic distillation step as required in prior art processes.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: May 25, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Francis J. Waller
  • Patent number: 5214172
    Abstract: Transvinylation of a vinyl ester with either an alcohol to form a vinyl ether or a carboxylic acid to form a vinyl ester of different molecular weight than the starting ester is catalyzed with a palladium catalyst which is introduced to the reaction mixture as a palladium carboxylate complexed with an aryl N-containing ligand and the activity of this reaction is significantly improved with the addition of a strong acid. Also described are phenanthroline compounds and their novel complexes with palladium acetate which are useful as transvinylation catalysts.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: May 25, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Francis J. Waller
  • Patent number: 5124299
    Abstract: Improved processes for acid-catalyzed oligomerization of olefins and alkylation of toluene are disclosed using a catalyst blend of at least one perfluorinated ion-exchange polymer containing sulfonic acid groups and at least one polymer diluent in a nonpolar reaction mixture.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: June 23, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis J. Waller
  • Patent number: 5105047
    Abstract: Improved processes for acid-catalyzed oligomerization of olefins and alkylation of toluene are disclosed using a catalyst blend of at least one perfluorinated ion-exchange polymer containing sulfonic acid groups and at least one polymer diluent in a nonpolar reaction mixture.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: April 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis J. Waller
  • Patent number: 5094995
    Abstract: A catalyst composition comprising a perfluorinated ion-exchange polymer containing sulfonic acid groups supported on an inert carrier having a hydrophobic surface with a mean pore diameter of at least 1000 .ANG.. Use of this catalyst provides improved hydrocarbon conversion processes for oligomerization of olefins, hydration of olefins and hydrolysis of esters.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: March 10, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin H. D. Butt, Francis J. Waller
  • Patent number: 5001257
    Abstract: Perfluorinated acid ion-exchange resins are highly effective catalysts for the isomerization of 3-pentenoic compounds to 4-pentenoic compounds, especially if the catalysts contain a group 8 metal in an oxidation state of at least +2.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: March 19, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patrick M. Burke, Francis J. Waller
  • Patent number: 4987248
    Abstract: An improved for preparing N-substituted carbamate comprising reaction of a selected olefin or alcohol with a carbamate in the presence of a catalyst comprising a blend of a perfluorinated sulfonic acid polymer and a perfluorinated polymer diluent in a substantially nonpolar reaction mixture.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: January 22, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Francis J. Waller
  • Patent number: 4806674
    Abstract: A process for preparing urethanes by reacting a primary or secondary amine with carbon monoxide, an alcohol, a catalytic quantity of a compound or complex of palladium, platinum or rhodium and a stoichiometric quantity of a copper(II) salt of a monocarboxylic acid. When the amine is aromatic, the process is conducted in the presence of a selected Lewis base promoter and a compound or complex of palladium.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: February 21, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Francis J. Waller
  • Patent number: 4783546
    Abstract: Isomerization by contacting 3-pentenenitrile with a heterogeneous catalyst, preferably promoted with at least 1 group 8 noble metal, to form 4-pentenenitrile.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: November 8, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patrick M. Burke, Norman Herron, Francis J. Waller
  • Patent number: 4709085
    Abstract: A process for producing a cyclopropane derivative comprising contacting a diazo compound and an olefinically unsaturated compound in the presence of a catalytic amount of copper cation-exchanged perfluorinated ion exchange polymer is disclosed.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: November 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William A. Nugent, Francis J. Waller
  • Patent number: 4595786
    Abstract: A catalytic process for the hydration of cyclohexene to cyclohexanol in the presence of perfluorosulfonic acid polymer.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: June 17, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis J. Waller
  • Patent number: 4463103
    Abstract: Process for oxidatively carbonylating toluene to toluic acid, at least 50 mol % of the toluic acid being the p-isomer, said process comprising contacting and reacting, at 110.degree.-250.degree. C., at a pressure of at least 500 psi (3.45 MPa), toluene, carbon monoxide, oxygen and the catalyst ingredients consisting essentially of(a) a compound of rhodium or iridium;(b) a sulfur oxy-acid or a Group Ia or IIa metal salt of a sulfur oxy-acid;(c) a sulfur oxy-acid or sulfur oxy-acid mixture having a Hammett acidity value (-H.sub.o) of greater than 7.0; and(d) a cupric salt of a sulfur oxy-acid;said catalyst ingredients containing 0.3-30 mol % of (a) and 70-99.7 mol % of (b+c+d), with the molar ratios (b/a) and (c/a) each being at least 2 and the molar ratio (d/a) being at least 0.5, and recovering toluic acid.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: July 31, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis J. Waller