Patents Represented by Attorney S. H. Hegedus
  • Patent number: 5243099
    Abstract: Organic polymer additive containing polar functional groups enhances the stability of palladium-containing catalysts for the telomerization of conjugated diolefins in the presence of active hydrogen-containing telomerization agent to produce alpha-substituted alkadienes.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: September 7, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Diane L. Packett
  • Patent number: 5225387
    Abstract: A process for producing a 1,3-diol, e.g., 1,3-propanediol, or a 3-hydroxyaldehyde is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the present of a rhodium-containing catalyst effective to promote the hydroformylation of the epoxide at conditions effective to form at least one of a 1,3-diol and a 3-hydroxyaldehyde, the contacting occurring in the substantial absence of a promoting amount of alkali metal ions, and at least a portion of the rhodium-containing catalyst being formed substantially without incorporation of the epoxide. A process for producing such rhodium-containing compositions is also disclosed.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: July 6, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John R. Briggs, John M. Maher, Arnold M. Harrison
  • Patent number: 5218140
    Abstract: 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: Grant
    Filed: August 2, 1988
    Date of Patent: June 8, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Richard W. Wegman
  • Patent number: 5210207
    Abstract: The invention provides an improved process for the preparation of a vinyl derivative of a Bronsted acid, wherein a vinyl derivative of a first Bronsted acid is subjected to transvinylation by reactive distillation with a second Bronsted acid.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: May 11, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Morteza Mokhtarzadeh, Rex E. Murray
  • Patent number: 5210318
    Abstract: A process for producing a 1,3-diol, e.g., 1,3-propanediol, and/or a 3-hydroxyaldehyde, e.g., 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the presence of a rhodium-containing catalyst composition effective to promote the hydroformylation of the epoxide at conditions effective to form at least one of a 1,3-diol and a 3-hydroxyaldehyde. The rhodium-containing catalyst composition comprises an anionic rhodium-containing complex. A promoter component is preferably provided to enhance at least one of the rate and selectivity of the epoxide hydroformylation reaction Rhodium-containing compositions and a processes for producing rhodium-containing compositions are also disclosed.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: May 11, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: John R. Briggs, John M. Maher, Arnold M. Harrison
  • Patent number: 5207954
    Abstract: Thermosettable, coreactable particulate powdereded compositions having particles comprising at least a first copolymer of an olefinically unsaturated monomer having at least one functional group and at least a second copolymer of an olefinically unsaturated monomer having at least one functional group which is reactive with the at least one functional group of the at least first copolymer are disclosed. Methods for making and using these compositions are also disclosed.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: May 4, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey M. Lewis, Kenneth L. Hoy, Michael J. Greene
  • Patent number: 5194660
    Abstract: Processes for producing carbamates comprise contacting a first reactant selected from primary amine components, secondary amine components, urea components and mixtures thereof; carbon monoxide; at least one organic hydroxyl component and at least one oxygen-containing oxidizing agent in the presence of a catalyst composition comprising at least one metal macrocyclic complex, preferably in the further presence of a halogen component.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: March 16, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Tak W. Leung, Bernard D. Dombek
  • Patent number: 5192592
    Abstract: A method of coating a substrate with an aqueous coating composition that includes an alkali-swellable associative thickener is disclosed. The associative thickener is produced from a monoethylenically unsaturated carboxylic acid, a monoethylenically unsaturated monomer lacking surfactant capacity, a non-ionic urethane monomer, and, optionally, a polyethylenically unsaturated monomer.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: March 9, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Gregory D. Shay
  • Patent number: 5191051
    Abstract: There is disclosed an aqueous emulsion copolymer which provides an alkali-soluble anionic copolymer providing antisettling and antisag thickening characteristics especially useful in textured latex paints. The copolymers comprise an aqueous emulsion copolymer of:(A) about 10-60 weight percent of an alpha, beta-monoethylenically unsaturated carboxylic acid;(B) about 20-80 weight percent of a non-reactive monoethylenically unsaturated monomer which provides a water-insoluble copolymer;(C) about 0.5-40 weight percent of a monoethylenically saturated, hydrophobic nonionic monomer which is the reaction product of a monohydric or monoamine-terminated polypropoxylated or polybutoxylated hydrophobe with a monoethylenically unsaturated monomer having a single group which is reactive under the conditions employed; and(D) from 0 up to about 2 weight percent of a polyethylenically unsaturated monomer.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: March 2, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Gregory D. Shay, Fran K. Kravitz
  • Patent number: 5191091
    Abstract: 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: Grant
    Filed: January 27, 1992
    Date of Patent: March 2, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard W. Wegman, David R. Bryant
  • Patent number: 5179223
    Abstract: A process for producing a carbamate is disclosed. In one embodiment, the process comprises contacting a mixture comprising a primary amine component, an urea component and a hydroxy nitrogen component, in particular at least one oxime, at conditions effective to form a carbamate. Certain novel carbamates are also disclosed.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: January 12, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Tak W. Leung, Donald C. Best, Bernard D. Dombek
  • Patent number: 5179183
    Abstract: Curable compositions based on (N-substituted carbamoyloxy)alkanoyloxyalkyl acrylate polymers. When cured the compositions are, for example, high-quality industrial finishes, sealants or encapsulants.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: January 12, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Joseph V. Koleske, Donald F. Smith, Jr., Robert J. Weber, Jr.
  • Patent number: 5171784
    Abstract: Novel phosphorylated compositions of a vinyl chloride copolymer or terpolymer, a phenoxy resin, a hydroxyalkyl acrylate or methacrylatelactone adduct or a reaction product of a normally solid pendant-hydroxyl-containing thermoplastic polymer having at least 8 hydroxyl groups per molecular chain and an adduct which is the product of either a hydroxylalkyl acrylate or methacrylate or a lactone-acrylate adduct and an organic diisocyanate having improved dispersion characteristics suitable for use in applications such as magnetic recording media.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: December 15, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ismael Colon, Charles B. Mallon, Robert N. Johnson
  • Patent number: 5169981
    Abstract: Organic polymer additive containing polar functional groups enhances the stability of palladium-containing catalysts for the telomerization of conjugated diolefins in the presence of active hydrogen-containing telomerization agent to produce alpha-substituted alkadienes.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Diane L. Packett