Patents by Inventor Orville L. Chapman

Orville L. Chapman 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).

  • Method for direct arylation of diamondoids
    Patent number: 5347063
    Abstract: The present invention provides a method for arylating a non-halogenated diamondoid compound comprising the steps of:(a) providing a non-halogenated diamondoid compound or mixture of non-halogenated diamondoid compounds and an aromatic compound or mixture of aromatic compounds wherein at least one diamondoid compound and at least one aromatic compound are at least partially miscible;(b) mixing the compounds of step (a) to form at least a partial solution;(c) adding a reactive halide source to the mixture of step (b);(d) adding a Lewis acid to said mixture of step (c);(e) heating said mixture of step (d) to temperature above ambient and holding said heated mixture at elevated temperature;(f) recovering an arylated diamondoid compound from said solution.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: September 13, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Dong-Min Shen, Orville L. Chapman, Ling Lin, Rafael Ortiz
  • Diamondoid polymeric compositions
    Patent number: 5053434
    Abstract: Polymers are disclosed which comprise monomer units bonded through octahedrally disposed atoms of the monomers. Adamantane exemplifies the skeletal structure of such monomers.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: October 1, 1991
    Assignee: Mobil Oil Corporation
    Inventor: Orville L. Chapman
  • Diamondoid polymeric compositions
    Patent number: 5019660
    Abstract: Polymeric compositions of matter and methods of making the same are disclosed, said polymeric compositions comprising at least one monomer having the structure of one selected from the group consisting of diamantane, triamantane and the higher adamantalogs, said monomer being bonded through at least one double bond extending through a methylene position of said monomer.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: May 28, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Orville L. Chapman, D. Duayne Whitehurst
  • Thermal styrene formation in the presence of O.sub.2
    Patent number: 4544782
    Abstract: Single-stage thermolysis of C.sub.8 and C.sub.9 aromatics at temperatures in excess of 900.degree. C. and pressures of less than 0.2 torr or in the presence of steam in excess of 800.degree. C., in the absence of catalysts yields styrene and/or p-methylstyrene in high yields, providing a process for the conversion of xylenes and p-ethyltoluene to preferred styrene monomers.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: October 1, 1985
    Assignee: The Regents of the University of California
    Inventors: Orville L. Chapman, Uh-Po E. Tsou
  • Selective phosphorylation process
    Patent number: 4066719
    Abstract: A one step process for the preparation of phosphate esters of acidic hydroxy-containing compounds, e.g., phenols, by reacting said compounds with dimethyl disulfide and a trialkyl phosphite.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: January 3, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Roger P. Napier, Orville L. Chapman
  • Selective phosphorylation process
    Patent number: 4003966
    Abstract: A one step process for the preparation of phosphate esters of phenol comprising reacting phenol with a dimethyl disulfide and a trialkyl phosphite.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: January 18, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Roger Paul Napier, Orville L. Chapman