Patents by Inventor Paul G. Bercik

Paul G. Bercik 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).

  • Alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same and method of making the oligomers
    Patent number: 5420372
    Abstract: An alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; andy represents the number of repeating units in the oligomer such that the weight average molecular weight is from about 5,000 to about 20,000;said oligomer having from about 70 to 100 percent head-to-tail alignment of the repeating units of the oligomer. Preferably the weight average molecular weight of the oligomer is from 5,000 to about 10,000; and said oligomer is further characterized as having a dispersity of less than about 5.5, and a Z average molecular weight of less than about 24,000.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: May 30, 1995
    Assignee: Chevron Chemical Company
    Inventors: David L. Beach, Paul G. Bercik, Neal E. Morganson
  • Normally liquid alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same
    Patent number: 5315053
    Abstract: A lubricating oil composition comprising a normally liquid alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; andy represents the number of repeating units in the oligomer such that the weight average molecular weight is from about 5,000 to about 20,000;said oligomer having from about 70 to 100 percent head-to-tail alignment of the repeating units of the oligomer. Preferably the weight average molecular weight of the oligomer is from 5,000 to about 10,000; and said oligomer is further characterized as having a dispersity of less than about 5.5, and a Z average molecular weight of less than about 24,000.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: May 24, 1994
    Assignee: Chevron Research Company
    Inventors: David L. Beach, Paul G. Bercik, Neal E. Morganson
  • Alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing same
    Patent number: 5177276
    Abstract: An alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; andy represents the number of repeating units in the oligomer such that the weight average molecular weight is from about 5,000 to about 20,000;said oligomer having from about 70 to 100 percent head-to-tail alignment of the repeating units of the oligomer. Preferably the weight average molecular weight of the oligomer is from 5,000 to about 10,000; and said oligomer is further characterized as having a dispersity of less than about 5.5, and a Z average molecular weight of less than about 24,000.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: January 5, 1993
    Assignee: Chevron Research Company
    Inventors: David L. Beach, Paul G. Bercik, Neal E. Morganson
  • Method of oligomerizing 1-olefins and regenerating a heterogeneous catalyst
    Patent number: 4429177
    Abstract: An alpha-olefin is oligomerized in the presence of a three-component catalyst comprising a particulate solid adsorbent, boron trifluoride and elemental oxygen. The process also activates the catalyst. For example, 1-decene is oligomerized to a product predominating in the trimer and tetramer using boron trifluoride, elemental oxygen and silica as the solid adsorbent.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: January 31, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Neal E. Morganson, Paul G. Bercik
  • Oligomerizing 1-olefins with a heterogeneous catalyst
    Patent number: 4365105
    Abstract: An alpha-olefin is oligomerized in the presence of a three-component catalyst comprising a particulate solid adsorbent, boron trifluoride and elemental oxygen. For example, 1-decene is oligomerized to a product predominating in the trimer and tetramer using boron trifluoride, elemental oxygen and silica as the solid adsorbent.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: December 21, 1982
    Assignee: Gulf Research & Development Company
    Inventors: Neal E. Morganson, Paul G. Bercik
  • Olefin polymerization process
    Patent number: 4153638
    Abstract: C.sub.2 -C.sub.5 mono-olefins are polymerized in the presence of a metal-substituted synthetic mica montmorillonite catalyst to selectively form gasoline boiling range oligomer products containing from 5 to 12 carbon atoms and oligomer distillate products containing up to 24 carbon atoms and having a maximum distillation end point of about 750.degree. F. (399.degree. C.).
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: May 8, 1979
    Assignee: Gulf Research & Development Company
    Inventors: Paul G. Bercik, Harold E. Swift, Kirk J. Metzger