Patents by Inventor James Mihalich

James Mihalich 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).

  • METHODS FOR PREPARATION OF MACROCYCLIC POLYESTER OLIGOMER VIA HETEROGENEOUS CATALYSIS
    Publication number: 20140378644
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) directly from monomer via heterogeneous catalysis, rather than by depolymerizing a polyester. For example, in an exemplary embodiment, cyclic poly(butylene terephthalate) (cPBT) is produced by reacting butanediol (BDO) and dimethylterephthalate (DMT) in an organic solvent—for example, ortho-dichlorobenzene (oDCB). The mixture flows over (or otherwise contacts) the catalyst-coated fiberglass or silica gel, e.g., which is packed in a column or bed. MPO is produced in the reaction mixture, while residual linears and catalyst residue remain in the column/bed.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 25, 2014
    Inventors: Jimmy Lynn Webb, James Mihalich
  • METHODS FOR PREPARATION OF POLYESTER OLIGOMER VIA BASE CATALYSIS
    Publication number: 20140343244
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) via base catalysis. It is found that base catalysts are effective in the production of MPO, and they reduce the potential for undesired byproducts such as furans (e.g., THF) and acetaldehyde, which result from diol side reactions.
    Type: Application
    Filed: March 13, 2014
    Publication date: November 20, 2014
    Applicant: Liquid Thermo Plastics, Inc.
    Inventors: Jimmy Lynn Webb, John Lippert, III, James Mihalich
  • Methods for preparation of macrocyclic polyester oligomer via heterogeneous catalysis
    Patent number: 8829152
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) directly from monomer via heterogeneous catalysis, rather than by depolymerizing a polyester. For example, in an exemplary embodiment, cyclic poly(butylene terephthalate) (cPBT) is produced by reacting butanediol (BDO) and dimethylterephthalate (DMT) in an organic solvent—for example, ortho-dichlorobenzene (oDCB). The mixture flows over (or otherwise contacts) the catalyst-coated fiberglass or silica gel, e.g., which is packed in a column or bed. MPO is produced in the reaction mixture, while residual linears and catalyst residue remain in the column/bed.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: September 9, 2014
    Assignee: Liquid Thermo Plastics, Inc.
    Inventors: Jimmy Lynn Webb, James Mihalich
  • Methods for Preparation of Macrocyclic Polyester Oligomer via Heterogeneous Catalysis
    Publication number: 20120302721
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) directly from monomer via heterogeneous catalysis, rather than by depolymerizing a polyester. For example, in an exemplary embodiment, cyclic poly(butylene terephthalate) (cPBT) is produced by reacting butanediol (BDO) and dimethylterephthalate (DMT) in an organic solvent—for example, ortho-dichlorobenzene (oDCB). The mixture flows over (or otherwise contacts) the catalyst-coated fiberglass or silica gel, e.g., which is packed in a column or bed. MPO is produced in the reaction mixture, while residual linears and catalyst residue remain in the column/bed.
    Type: Application
    Filed: February 23, 2012
    Publication date: November 29, 2012
    Inventors: Jimmy Lynn Webb, James Mihalich