Patents by Inventor Bryan C. Blanchard

Bryan C. Blanchard 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).

  • Process for removal of acrolein from acrylonitrile product streams
    Patent number: 7432404
    Abstract: Acrolein is removed from a process stream such as a process stream generated in the manufacture of acrylonitrile. The process includes reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence of an acid catalyst. The present process provides for a refined process stream that contains no more than 5 ppm by weight unreacted acrolein.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 7, 2008
    Assignee: Solutia, Inc.
    Inventors: Gregory J. Ward, Bryan C. Blanchard, Scott G. Moffatt, Valerie S. Monical, Richard D. Murphy, Balshekar Ramchandran
  • Process for removal of acrolein from acrylonitrile product streams
    Patent number: 7196231
    Abstract: Acrolein is removed from a process stream such as a process stream generated in the manufacture of acrylonitrile. The process includes reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence of an acid catalyst. The present process provides for a refined process stream that contains no more than 5 ppm by weight unreacted acrolein.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: March 27, 2007
    Assignee: Solutia, Inc.
    Inventors: Gregory J. Ward, Bryan C. Blanchard, Scott G. Moffatt, Valerie S. Monical, Richard D. Murphy, Balshekar Ramchandran
  • Low pressure process for manufacture of 3-dimethylaminopropylamine (DMAPA)
    Patent number: 6951959
    Abstract: An improved process for the production of 3-dimethylaminopropylamine in high purity from N,N-dimethylaminopropionitrile utilizing a low pressure hydrogenation process is described. The basic process comprises contacting the nitrile with hydrogen at low pressure in the presence of a catalyst under conditions sufficient to effect the conversion of the nitrile to the primary amine product.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: October 4, 2005
    Assignee: Solutia Inc.
    Inventors: Gregory J. Ward, Bryan C. Blanchard
  • Process for removal of acrolein from acrylonitrile product streams
    Publication number: 20040267054
    Abstract: Acrolein is removed from a process stream such as a process stream generated in the manufacture of acrylonitrile. The process includes reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence of an acid catalyst. The present process provides for a refined process stream that contains no more than 5 ppm by weight unreacted acrolein.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventors: Gregory J. Ward, Bryan C. Blanchard, Scott G. Moffatt, Valerie S. Monical, Richard D. Murphy, Balshekar Ramchandran
  • Low pressure process for manufacture of 3-dimethylaminopropylamine (DMAPA)
    Publication number: 20040147784
    Abstract: An improved process for the production of 3-dimethylaminopropylamine in high purity from N,N-dimethylaminopropionitrile utilizing a low pressure hydrogenation process is described. The basic process comprises contacting the nitrile with hydrogen at low pressure in the presence of a catalyst under conditions sufficient to effect the conversion of the nitrile to the primary amine product.
    Type: Application
    Filed: December 9, 2003
    Publication date: July 29, 2004
    Inventors: Gregory J. Ward, Bryan C. Blanchard
  • Low pressure process for manufacture of 3-dimethylaminopropylamine (DMAPA)
    Patent number: 6660887
    Abstract: An improved process for the production of 3-dimethylaminopropylamine in high (>99%) purity from N,N-dimethylaminopropionitrile utilizing a low pressure hydrogenation process is described. The basic process comprises contacting the nitrile with hydrogen at low pressure in the presence of a sponge nickel catalyst under conditions sufficient to effect the conversion of the nitrile to the primary amine product. The improvement in the process resides in a combination of carrying out the hydrogenation process at low pressures and temperatures in the presence of a catalytic amount of caustic base in order to give an improved selectivity of greater than 99.60% of DMAPN to DMAPA.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: December 9, 2003
    Assignee: Solutia Inc.
    Inventors: Gregory J. Ward, Bryan C. Blanchard