Patents by Inventor Mark Paster

Mark Paster 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 THE PREPARATION OF 3,3-DIMETHYLBUTANAL
    Publication number: 20070106086
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converted 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 10, 2007
    Applicant: The Nutrasweet Company
    Inventors: Jerry Ebner, Zhi Guo, Arnold Hershman, Loraine Klein, William McGhee, Mark Paster, Indra Prakash
  • Process for the preparation of 3,3-dimethylbutanal
    Patent number: 7164049
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: January 16, 2007
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark Paster, Indra Prakash
  • Process for the preparation of 3,3-dimethylbutanal
    Patent number: 6803487
    Abstract: 3,3-Dimethylbutanal is prepared from 3,3-dimethylbutanol. Intermediate 3,3-dimethylbutanol is obtained by reacting ethylene, isopropylene and a mineral acid to produce a 3,3-dimethylbutyl ester which is hydrolyzed to the alcohol. The hydrolysis step is effectively carried out by reactive distillation. Alternatively, 3,3-dimethylbutanal is prepared from 3,3-dimethylbutanol obtained by reduction of the corresponding carboxylic acid or 1,2-epoxy-3,3-dimethylbutane, or by hydrolysis of 1-halo-3,3-dimethylbutane. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: October 12, 2004
    Assignee: The Nutrasweet Company
    Inventors: Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine M. Klein, William D. McGhee, Mark Paster, Indra Prakash