Abstract: A stable distillate fuel blend useful as a fuel or as a blending component of a fuel that is suitable for use in turbine engine, said fuel blend prepared from at least one highly paraffinic distillate fuel component having low to moderate branching and at least one conventional petroleum-derived distillate fuel component and a process for preparing same involving the blending of at least two components having antagonistic properties with respect to one another.
Abstract: Novel heterodiamondoid-containing field emission devices (FED's) are disclosed herein. In one embodiment of the present invention, the heteroatom of the heterodiamondoid comprises an electron-donating species (such as nitrogen) as part of the cathode or electron-emitting component of the field emission device.
Type:
Grant
Filed:
January 4, 2005
Date of Patent:
December 25, 2007
Assignee:
Chevron U.S.A. Inc.
Inventors:
Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
Abstract: Novel diamondoid-based components that may be used in nanoscale construction are disclosed. Such components include rods, brackets, screws, gears, rotors, and impellers. Subassemblies (or subsystems) may comprise one or more diamondoid components. Exemplary subassemblies include atomic force microscope tips, molecular tachometers and signal waveform generators, and self-assembling cellular membrane pores and channels.
Type:
Grant
Filed:
July 16, 2003
Date of Patent:
December 18, 2007
Assignee:
Chevron U.S.A. Inc.
Inventors:
Robert M. Carlson, Jeremy E. Dahl, Shenggao Liu
Abstract: Novel uses of higher diamondoids are disclosed. Specifically, higher diamondoids may be used to nucleate diamond films and diamond-like carbon films. Such higher diamondoids include iso-tetramantane [1(2)3], anti-tetramantane [121], the two enantiomers of skew-tetramantane [123], the ten possible pentamantane, the thirty nine possible hexamantanes, the one hundred sixty heptamantanes, as well as the various octamantanes, nonamantanes, decamantanes, and undecamantanes.
Type:
Grant
Filed:
June 10, 2004
Date of Patent:
December 11, 2007
Assignee:
Chevron U.S.A. Inc.
Inventors:
Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
Abstract: Novel uses of diamondoid-containing materials in the field of microelectronics are disclosed. Embodiments include, but are not limited to, thermally conductive films in integrated circuit packaging, low-k dielectric layers in integrated circuit multilevel interconnects, thermally conductive adhesive films, thermally conductive films in thermoelectric cooling devices, passivation films for integrated circuit devices (ICs), and field emission cathodes. The diamondoids employed in the present invention may be selected from lower diamondoids, as well as the newly provided higher diamondoids, including substituted and unsubstituted diamondoids. The higher diamondoids include tetramantane, peritamantane, hexamantane, heptamantane, octamantane, nonamantane, decamantane, and undecamantane.
Type:
Grant
Filed:
February 24, 2004
Date of Patent:
December 11, 2007
Assignee:
Chevron U.S.A.. Inc.
Inventors:
Jeremy E. Dahl, Robert M. Carlson, Shenggao Liu
Abstract: Novel positive-working photoresist compositions are disclosed. The monomers of the base resin of the resist contain diamondoid-containing pendant groups higher than adamantane in the polymantane series; for example, diamantane, triamantane, tetramantane, pentamantane, hexamantane, etc. The diamondoid-containing pendant group may have hydrophilic-enhancing substituents such as a hydroxyl group, and may contain a lactone group. Advantages of the present compositions include enhanced resolution, sensitivity, and adhesion to the substrate.
Type:
Grant
Filed:
November 4, 2005
Date of Patent:
December 4, 2007
Assignee:
Chevron U.S.A. Inc.
Inventors:
Shenggao Liu, Jeremy E. Dahl, Robert M. Carlson