Patents Represented by Attorney, Agent or Law Firm Phyllis Turner-Brim
  • Crystallization in a plate heat exchanger
    Patent number: 6194609
    Abstract: Crystallization of a crystallizable material is achieved through heat exchange in a plate heat exchanger is disclosed. A mixture or solution comprising a crystallizable material is passed through a plate heat exchanger at an appropriate temperature and pressure such that the material is selectively crystallized. The processes are particularly useful in the production of para-xylene, dimethylnaphthalene, aromatic carboxylic acids, and aromatic anhydrides.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: February 27, 2001
    Assignee: BP Amoco Corporation
    Inventors: Kenneth J. Abrams, Thomas M. Bartos, Debra J. Streich
  • Process for preparing aromatic carboxylic acids with efficient treatments of gaseous effluent
    Patent number: 6137001
    Abstract: Processes are disclosed for recovery of hydrogen bromide from one or more alkyl bromide compounds by hydrolyzing the alkyl bromide compounds to hydrogen bromide and corresponding alcohols, and simultaneously separating at least the alcoholic products of hydrolysis from aliphatic monocarboxylic acid solvent component. Also disclosed are process for preparing aromatic carboxylic acids by the exothermic, liquid-phase oxidation of an aromatic feedstock compound wherein the energy produced by the exothermic oxidation is efficiently recovered, and uses of water produced during the preparation of aromatic carboxylic acids are efficiently integrated into the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: October 24, 2000
    Assignee: BP Amoco Corporation
    Inventors: Jeffrey L. Broeker, Frank G. Belmonte, Thomas M. Bartos, Alakananda Bhattacharyya, Anne M. Karachewski, Bruce I. Rosen, Kenneth J. Abrams
  • Method of making high density polyester compositions
    Patent number: 6121407
    Abstract: Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: September 19, 2000
    Assignee: BP Amoco Corporation
    Inventors: Edward E. Paschke, Charles W. Bauer, Frank C. Robertson, James M. Tibbitt
  • Method of making high density polyester compositions
    Patent number: 6107445
    Abstract: Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: August 22, 2000
    Assignee: BP Amoco Corporation
    Inventors: Edward E. Paschke, Charles W. Bauer, Frank C. Robertson, James M. Tibbitt
  • Polyester compositions
    Patent number: 6011132
    Abstract: Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: January 4, 2000
    Assignee: BP Amoco Corporation
    Inventors: Edward E. Paschke, Charles W. Bauer, Frank C. Robertson, James M. Tibbitt
  • Polyester compositions
    Patent number: 5912307
    Abstract: Polyester compositions containing terephthalate, 2,6-naphthalate and/or isophthalate moieties, and showing improved properties are disclosed.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: June 15, 1999
    Assignee: BP Amoco Corporation
    Inventors: Edward E. Paschke, Charles W. Bauer, Frank C. Robertson, James M. Tibbitt