Patents by Inventor Antoon Paul Michael Kremers

Antoon Paul Michael Kremers 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).

  • Process for preparing organic hydroperoxide containing product
    Patent number: 6974888
    Abstract: Process for preparing alkylaryl hydroperoxide containing product, which process comprises: (a) oxidation of an alkylaryl compound to obtain reaction product containing alkylaryl hydroperoxide, (b) contacting with water at least part of the alkylaryl hydroperoxide containing reaction product obtained in step (a) which reaction product contains less than 0.05 % wt of sodium, (c) separating the product of step (b) into a hydrocarbonaceous phase containing alkylaryl hydroperoxide and an aqueous phase, (d) optionally repeating process steps (b) and (c) one or more times, (e) contacting at least part of the hydrocarbonaceous phase containing alkylaryl hydroperoxide obtained in step (c) or (d) with olefin and catalyst to obtain alkylaryl hydroxide and oxirane compound, and (f) separating at least part of the oxirane compound from the alkylaryl hydroxide.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: December 13, 2005
    Assignee: Shell Oil Company
    Inventors: Antoon Paul Michael Kremers, Eduardus Petrus Simon Schouten, Cornelis Willem Adriaan Schram
  • Process for preparing organic hydroperoxide containing product
    Publication number: 20040147768
    Abstract: Process for preparing alkylaryl hydroperoxide containing product, which process comprises:
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Inventors: Antoon Paul Michael Kremers, Eduardus Petrus Simon Schouten, Cornelis Willem Adriaan Schram
  • Process for preparing organic hydroperoxide containing product
    Patent number: 6700005
    Abstract: Process for preparing alkylaryl hydroperoxide containing product, which process comprises: (a) oxidation of an alkylaryl compound to obtain reaction product containing alkylaryl hydroperoxide, (b) contacting with water at least part of the alkylaryl hydroperoxide containing reaction product obtained in step (a) which reaction product contains less than 0.05% wt of sodium, (c) separating the product of step (b) into a hydrocarbonaceous phase containing alkylaryl hydroperoxide and an aqueous phase, (d) optionally repeating process steps (b) and (c) one or more times, (e) contacting at least part of the hydrocarbonaceous phase containing alkylaryl hydroperoxide obtained in step (c) or (d) with olefin and catalyst to obtain alkylaryl hydroxide and oxirane compound, and (f) separating at least part of the oxirane compound from the alkylaryl hydroxide.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: March 2, 2004
    Assignee: Shell Oil Company
    Inventors: Antoon Paul Michael Kremers, Eduardus Petrus Simon Schouten, Cornelis Willem Adriaan Schram
  • Process for preparing organic hydroperoxide containing product
    Publication number: 20030158447
    Abstract: Process for preparing alkylaryl hydroperoxide containing product, which process comprises:
    Type: Application
    Filed: February 6, 2003
    Publication date: August 21, 2003
    Inventors: Antoon Paul Michael Kremers, Eduardus Petrus Simon Schouten, Cornelis Willem Adriaan Schram
  • Process for preparing refined acrylic esters
    Patent number: 5968322
    Abstract: A process for preparing refined acrylic esters, the process including steps of distilling an acrylic ester containing stream in the presence of hydroquinone or substituted hydroquinone, at a concentration in the range of 200 to 5000 ppmw, wherein the distillation is carried out in the presence of 0.001 to 1.0 % v, on the vapor phase, of oxygen.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: October 19, 1999
    Inventors: Peter Arnoldy, Eric Kragtwijk, Antoon Paul Michael Kremers