Feed Has Side-chain Patents (Class 585/376)
  • Process for the alkylation of a cycloalkene
    Patent number: 8168842
    Abstract: Process for the alkylation of a cycloalkene, which process comprises alkylating a cycloalkene with an oxygenate under alkylating conditions in the presence of a zeolite; to yield an alkylated cycloalkene. Composition obtainable by such a process and use of such a composition as a gasoline blending component.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: May 1, 2012
    Assignee: Shell Oil Company
    Inventors: Leslie Andrew Chewter, Aden Murphy, Michiel Johannes Franciscus Maria Verhaak, Jeroen Van Westrenen
  • Process for converting a geminally substituted cyclopentadiene
    Patent number: 6137019
    Abstract: Process for converting a geminally substituted cyclopentadiene containing 2-6 substituents into a non-geminally substituted cyclopentadiene by reacting the geminally substituted cyclopentadiene with a base, sodium or potassium at a temperature of 0-200.degree. C. The invention also relates to mixtures of non-geminally substituted cyclopentadienes obtained by means of this process.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 24, 2000
    Assignee: DSM N.V.
    Inventors: Gerardus J. M. Gruter, Johannes A. M. van Beek
  • Process for preparing biscyclopentadienyl compounds
    Patent number: 5545785
    Abstract: The invention relates to a process for preparing biscyclopentadienyl compounds of the general formula(CpR.sub.a).sub.2 --Qby reaction of CpR.sub.a, in a first step, in accordance with the general equation2CpR.sub.a +(R.sup.3 R.sup.4).sub.c Mg.fwdarw.(CpR.sub.a).sub.2 Mg+cR.sup.3 H+cR.sup.4 Hand further reaction in accordance with the general equation(CpR.sub.a).sub.2 Mg+XQX.sup.1 .fwdarw.(CpR.sub.a).sub.2 Q+MgXX.sup.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: August 13, 1996
    Assignee: Witco GmbH
    Inventor: Richard Lisowsky
  • Cyclopentadiene type compounds and method for making
    Patent number: 5406013
    Abstract: Processes are disclosed for preparing compounds of the formula Z--R--Z where each Z can be selected from cyclopentadienyl type radicals such as substituted or unsubstituted cyclopentadienyl, indenyl, fluorenyl or tetrahydroindenyl or where one Z is Cl, Br, or I by reacting specific Z precursors with a dihaloalkylene compound. Also new cyclopentadienyl-type compounds are disclosed.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: April 11, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Konstantinos Patsidis, Syriac J. Palackal, Helmut G. Alt
  • Cyclopentadiene type compounds and method for making
    Patent number: 5393911
    Abstract: New fluorenyl silane compounds and method for their production are disclosed. The fluorenyl compounds have the formula ##STR1## wherein Z is a substituted or unsubstituted fluorenyl radical and Z' is a substituted or unsubstituted cyclopentadienyl-type radical or a halogen.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: February 28, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Konstantinos Patsidis, Syriac J. Palackal, Helmut G. Alt
  • Cyclopentadiene type compounds and method for making
    Patent number: 5191132
    Abstract: Processes are disclosed for preparing compounds of the formula Z--R--Z where each Z can be selected from cyclopentadienyl type radicals such as substituted or unsubstituted cyclopentadienyl, indenyl, fluorenyl or tetrahydroindenyl or where one Z is Cl, Br, or I by reacting specific Z precursors with a dihaloalkylene compound. Also new cyclopentadienyl-type compounds are disclosed.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: March 2, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Konstantinos Patsidis, Syriac J. Palackal, Helmut G. Alt
  • Process for the production of an isobutenylcyclohexene
    Patent number: 4891461
    Abstract: An isobutenylcyclohexene (IBCH) is produced by reacting under disproportionation conditions an isoolefin with a vinylcyclohexene (VCH), or by reacting an isoolefin and a compound derivable from a VCH by homodisproportionation involving the elimination of ethylene, in the presence of a supported rhenium heptoxide disproportionation catalyst promoted with at least one transition metal in the form of the elemental metal and/or an oxide thereof, for example either copper or zinc.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: January 2, 1990
    Assignee: BP Chemicals Limited
    Inventors: David Lyons, Derek K. MacAlpine
  • Process for producing alkylcyclopentadiene derivatives
    Patent number: 4814532
    Abstract: A process for producing an alkylcyclopentadiene derivative comprising the vapor-phase reaction of a cyclopentadiene derivative and an aliphatic lower alcohol in the presence of a basic crystalline aluminosilicate catalyst containing an alkali metal.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: March 21, 1989
    Assignees: Chemical Company, Ltd. Asahi, Zenichi Yoshida
    Inventors: Zenichi Yoshida, Susumu Kato, Yashuhiro Amemiya
  • Process for preparing alkylcyclopentadiene derivatives
    Patent number: 4567308
    Abstract: An alkylation method of a cyclopentadiene derivative comprising the vapor-phase reaction of a cyclopentadiene derivative and an aliphatic lower alcohol in the presence of a specific heterogeneous basic catalyst.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: January 28, 1986
    Assignees: Asahi Chemical Co., Ltd., Zenichi Yoshida
    Inventors: Zenichi Yoshida, Susumu Kato, Yasuhiro Amemiya, Keisuke Yanai
  • Methylcyclopentadiene synthesis
    Patent number: 4547603
    Abstract: Synthesis of methylcyclopentadiene with limited amounts of dimethylcyclopentadiene by-product. Cyclopentadiene monomer is complexed with metallic sodium in diglyme (diethylene glycol dimethylether) and reacted with an alkylating agent such as methyl chloride in the presence of a large stoichiometric excess of cyclopentadiene monomer. A high yield of methylcyclopentadiene is obtained with only a small production of undesirable methylcyclopentadiene. The excess cyclopentadiene is easily recycled in a continuous process.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: October 15, 1985
    Assignee: Ethyl Corporation
    Inventor: Sundar J. Rajan