Patents by Inventor Edward Budi Muliawan

Edward Budi Muliawan 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).

  • Processes for preparing polytrimethylene ether glycol
    Patent number: 8884073
    Abstract: Provided are processes for preparing low molecular weight polytrimethylene ether glycol by acid catalyzed polycondensation, neutralization, removal of unreacted monomer, and contact with filter aid. The processes can avoid hydrolysis and yet provide product substantially free of catalyst derived end groups.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 11, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Edward Budi Muliawan, Raja Hari Poladi, Hari Babu Sunkara
  • PROCESSES FOR PREPARING POLYTRIMETHYLENE ETHER GLYCOL
    Publication number: 20120277478
    Abstract: Provided are processes for preparing low molecular weight polytrimethylene ether glycol by acid catalyzed polycondensation, neutralization, removal of unreacted monomer, and contact with filter aid. The processes can avoid hydrolysis and yet provide product substantially free of catalyst derived end groups.
    Type: Application
    Filed: April 23, 2012
    Publication date: November 1, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: EDWARD BUDI MULIAWAN, RAJA HARI POLADI, HARI BABU SUNKARA
  • METHODS FOR SYNTHESIZING POLYETHER DIOLS AND POLYESTER DIOLS
    Publication number: 20110172360
    Abstract: Processes for synthesizing polyether diols and polyester diols are provided. The processes include reacting diols and/or diacids in the presence of carbon black. The processes can be used to produce polymers of a variety of molecular weights.
    Type: Application
    Filed: July 16, 2010
    Publication date: July 14, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Edward Budi Muliawan, Hari Babu Sunkara, Tuyu Xie
  • METHODS FOR SYNTHESIZING POLYTRIMETHYLENE ETHER GLYCOL AND COPOLYMERS THEREOF
    Publication number: 20110172361
    Abstract: Processes for synthesizing polytrimethylene ether glycol and copolymers thereof are provided. The processes include polycondensing diols in the presence of carbon black, and may be used to produce polymers having molecular weights from about 250 to about 5000.
    Type: Application
    Filed: July 16, 2010
    Publication date: July 14, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Edward Budi Muliawan, Tuyu Xie