Terpene Manufacture Or Recovery Patents (Class 585/947)
  • Compositions and methods for producing isoprene free of C5 hydrocarbons under decoupling conditions and/or safe operating ranges
    Patent number: 8906658
    Abstract: The invention features methods for producing isoprene from cultured cells wherein the cells in the stationary phase. The invention also provides compositions that include these cultured cells and/or increased amount of isoprene. The invention also provides for systems that include a non-flammable concentration of isoprene in the gas phase. Additionally, the invention provides isoprene compositions, such as compositions with increased amount of isoprene or increased purity.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 9, 2014
    Assignees: Danisco US Inc., The Goodyear Tire & Rubber Company
    Inventors: Anthony R. Calabria, Marguerite A. Cervin, Gopal K. Chotani, Richard La Duca, Joseph C. McAuliffe, Michael C. Miller, Timothy A. Sabo, Karl J. Sanford, Erin L. Spring, Gregory M. Whited
  • Method of isolating cucurbitacin
    Patent number: 5925356
    Abstract: A method of isolating and purifying cucurbitacin is described. The method involves providing a cucurbitacin-containing liquid obtained from plant matter containing cucurbitacin, which liquid is then sequentially extracted with a non-polar solvent and then a moderately polar solvent. In a preferred embodiment, the cucurbitacin is purified by flash-column chromatography.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: July 20, 1999
    Inventor: Ven Subbiah
  • Hydrocarbon-based fuels from biomass
    Patent number: 5186722
    Abstract: The invention relates to a process for providing fuels from biomass such as seed oils or plant fruits. Generally the process utilizes a metal catalyzed conversion to step to provide fuel mixtures with compositions that may be varied depending on conditions of temperature, pressure and time of reaction. Mixtures of hydrocarbons produced from limonene feedstocks include alicyclic, alkyl and aromatic species. Monocyclic aromatic compounds may be obtained in high yields depending on the reaction conditions employed.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: February 16, 1993
    Assignee: Cantrell Research, Incorporated
    Inventors: Charles L. Cantrell, Ngee S. Chong
  • Process for the preparation of hexamethyl tetracosanes
    Patent number: 4754090
    Abstract: A process for the preparation of 2,6,10,15,19,23-hexamethyl tetracosane and the isomers thereof having a basic hexamethyl tetracosane structure is described. Therein the raw materials are vegetable triglyceride oils and fats or oleins thereof obtained by physical refining. Together with an optional prior refining step, the process comprises a fatty acid and unsaponifiable material separation step, a saponification step giving unsaturated hydrocarbons, a hydrogenation step and a final deparaffining and purification step.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: June 28, 1988
    Assignee: Hispano Quimica S.A.
    Inventors: Jose Maria Vila Peris, Miguel de los Santos Alamany Soler, Roberto Celades Colom
  • Functionally terminated polymers from terpene monomers and their applications
    Patent number: 4564718
    Abstract: A method of preparing a functionally terminated polymer comprising polymerizing a terpene or an oxygen derivative thereof having a double bond or conjugated double bond available for polymerization with an initiator having a grouping which provides, or is a precursor of, the functional termination for the polymer.
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: January 14, 1986
    Assignee: The University of Manchester Institute of Science and Technology
    Inventors: Richard H. Still, John L. Cawse, John L. Stanford
  • Process for the isomerization of limonene to terpinolene
    Patent number: 4551570
    Abstract: A process for isomerizing limonene to terpinolene in the presence of an acidic catalyst and in the presence of a buffer.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: November 5, 1985
    Assignee: SCM Corporation
    Inventor: Walter E. Johnson, Jr.
  • Catalytic isomerization of tertiary olefins
    Patent number: 4544780
    Abstract: A process for the isomerization of a tertiary double bonded olefin having a hydrogen atom attached to a carbon atom vicinal to the tertiary carbon of the double bond comprises treating the olefin in a solution of dry liquid sulfur dioxide in the presence of a catalyst selected from oxygen, a hydroperoxide or a protic acid or mixtures thereof.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: October 1, 1985
    Assignee: Shell Oil Company
    Inventor: Stanley E. Wilson
  • Process for the conversion of terpenes to limonene
    Patent number: 4508930
    Abstract: There is disclosed a process for the conversion of terpenes to limonene which comprises contacting at least one terpene, selected from the group comprised of mono- and bi-cyclic unsaturated hydrocarbons having the formula C.sub.10 H.sub.16 with an alkali metal sulfide catalyst on a support at a temperature of 300.degree. to 450.degree. C.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: April 2, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson G. Wideman, Lynn A. Bente
  • Process for preparing .alpha.-thujene
    Patent number: 4374292
    Abstract: .alpha.-Thujene is prepared in high yields by isomerizing 1 mole of sabinene with 0.2 to 0.5 moles of an alkali metal, preferably lithium and 0.3 to 0.8 moles of a primary or secondary amine, preferably ethylenediamine. Formation of by-products such as p-cymene is minimized.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: February 15, 1983
    Assignee: Lion Corporation
    Inventors: Haruhiko Toda, Moriaki Higo, Hitoshi Saga, Masafu Shinbo
  • Hydrogenation of .alpha.-pinene to cis-pinane
    Patent number: 4310714
    Abstract: Ruthenium has been found to be a stereoselective catalyst for the hydrogenation of .alpha.-pinene to obtain cis-pinane.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: January 12, 1982
    Assignee: Union Camp Corporation
    Inventor: Mark S. Pavlin
  • Selective conversion of d-isolimonene to d-3-menthene
    Patent number: 4249028
    Abstract: d-3-Menthene of high optical purity is obtained by the selective isomerization/hydrogenation of d-isolimonene in the presence of minor amounts of a palladium catalyst at temperatures up to 200.degree. C. and pressures of preferably about 100-500 psig.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: February 3, 1981
    Assignee: SCM Corporation
    Inventors: James O. Bledsoe, Jr., Carlos G. Cardenas
  • Hydrogenation process for the selective preparation of 3-menthene
    Patent number: 4204080
    Abstract: Non-conjugated para-menthadienes having one site of unsaturation at the 4(8)- or 8-position are hydrogenated to selectively form 3-menthene in the presence of a homogeneous ruthenium catalyst complex.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: May 20, 1980
    Assignee: SCM Corporation
    Inventors: James O. Bledsoe, Jr., Carlos G. Cardenas