Patents by Inventor Wouter de Jong

Wouter de Jong 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).

  • Publication number: 20040014902
    Abstract: Disclosed is a method for making selectively hydrogenated block copolymers of vinyl aromatic hydrocarbons and conjugated dienes comprising: a) anionically polymerizing vinyl aromatic hydrocarbons and conjugated dienes to produce block copolymers with living chain ends; b) terminating the living chain ends; to produce a terminated block copolymer, with a member from the group consisting of an alcohol, hydrogen, and mixtures thereof, to prepare a terminated block copolymer; and c) contacting the terminated block copolymers with hydrogen at a temperature of from 20 to 175° C. in the presence of a catalyst prepared by combining a cobalt carboxylate with an aluminum alkyl, wherein: (i) if the polymer is terminated with an alcohol and the alcohol is a linear alcohol, the linear alcohol is used to terminate the living chain ends in an amount such that the alcohol: living chain end molar ratio is from 0.05 to 1.
    Type: Application
    Filed: July 22, 2003
    Publication date: January 22, 2004
    Inventors: Kimberly A Johnson, Wouter de Jong, David K Schisla
  • Publication number: 20030092851
    Abstract: The present invention relates to a process for preparing a partially hydrogenated butadiene polymer comprising no more than 3 mol % 1,2-butadiene recurring units (A) and no more than 3 mol % ethylene recurring units (D), calculated on the total content mol/mol of recurring units, wherein a butadiene polymer comprising 1,2-butadiene recurring units (A) and 1,4-butadiene recurring units (B) is hydrogenated in the presence of hydrogen and a titanium, zirconium- and/or hafnium-based metallocene compound as hydrogenation catalyst and a cocatalyst, characterized in that: a) the hydrogenation catalyst has a reaction rate ratio of r1/r2 greater than 5, wherein r1 and r2 are the hydrogenation rates of recurring units (A) and (B) respectively at the same reaction conditions, b) the cocatalyst is an alkali metal hydride, added as such of prepared in situ, and c) hydrogenation of the conjugated diene is carried out until at least 97 % of recurring units (A) have been hydrogenated.
    Type: Application
    Filed: August 14, 2002
    Publication date: May 15, 2003
    Inventor: Wouter De Jong
  • Patent number: 5925717
    Abstract: The invention provides a catalyst composition for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:(a) a titanium compound of the formula ##STR1## (I) wherein A.sub.1 represents an optionally substituted indenyl group of the formula ##STR2## wherein substituents R.sub.1 and R.sub.2 may be the same or different and each may be selected from halogen, phenyl which optionally may bear one or more the same or different substituents, lower alkyl, alkoxy, phenoxy, phenylalkoxy, benzyl, and a bulky substituent containing one or more hetero atoms such as tri (loweralkyl)silyl, --NPh.sub.2, --NHPh, --BPh.sub.2, and --B(OPh).sub.2, wherein n may be an integer of from 0 to 4 and m may be an integer of from 0 to 3,(II)wherein A.sub.2 has the same meaning as A.sub.1 or alternatively represents an optionally substituted cyclopentadienyl group, and wherein L.sub.1 and L.sub.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: Eric Johannes Maria De Boer, Bart Hessen, Adriaan Albert Van Der Huizen, Wouter De Jong, Adrianus Johannes Van Der Linden, Bart Johan Ruisch, Lodewijk Schoon, Heleen Johanna Augusta De Smet, Frederik Hendrik Van Der Steen, Hubertus Cornelis Thomas Lucianes Van Strien, Alan Villena, Judith Johanna Berendina Walhof
  • Patent number: 5886107
    Abstract: The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:(a) a titanium compound of the formula ##STR1## wherein A.sub.1 represents an optionally substituted heterocyclic five membered ring comprising a phosphorous or nitrogen heteroatom, and A.sub.2 has the same meaning as A.sub.1 or alternatively represents an optionally substituted cyclopentadienyl group or indenyl group, and wherein L.sub.1 and L.sub.2 may be the same or different and each may be selected from hydrogen, halogen, lower alkyl, phenyl, aralkyl, having from 7 to 10 carbons, lower alkoxy group, phenyloxy, phenylalkoxy group having from 7 to 10 carbon atoms, carboxyl, carbonyl, a .about.CH.sub.2 P(Phenyl).sub.2, --CH.sub.2 Si(lower alkyl).sub.3 or .about.P(phenyl).sub.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: March 23, 1999
    Assignee: Shell Oil Company
    Inventors: Eric Johannes Maria De Boer, Bart Hessen, Adriaan Albert Van Der Huizen, Wouter De Jong, Adrianus Johannes Van Der Linden, Bart Johan Ruisch, Lodewijk Schoon, Heleen Johanna Augusta De Smet, Frederik Hendrik Van Der Steen, Hubertus Cornelis Thomas Lucianes Van Strien, Alan Villena, Judith Johanna Berendina Walhof
  • Patent number: 5814709
    Abstract: The invention provides a catalyst composition suitable for hydrogenation of polymers containing ethylenic unsaturation, which comprise:(a) a titanium compound of the formula, ##STR1## wherein A.sub.1 and A.sub.2 are the same or different and each represents a substituted or unsubstituted cyclopentadienyl or indenyl group,wherein X.sub.1 and X.sub.2 are the same or different and each represents hydrogen, halogen, a lower alkyl or lower alkoxy, optionally substituted phenyl or phenoxy, or aralkyl having from 7 to 10 carbon atoms, or phenylalkoxy having from 7 to 10 carbon atoms, carboxyl, carbonyl, a --CH.sub.2 P(Phenyl).sub.2, --CH.sub.2 Si(lower alkyl).sub.3, or --P(phenyl).sub.2 group.(b) an alkalimetal hydride, added as such or prepared in situ in the polymer solution from the alkalimetal terminated living polymer and/or from additionally added alkalimetal alkyl and hydrogen, the molar ratio of the alkalimetal:titanium in the polymer solution during hydrogenation being at least 2:1;(c) a borium compoundB(R.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: September 29, 1998
    Assignee: Shell Oil Company
    Inventors: Eric Johannes Maria De Boer, Bart Hessen, Adriaan Albert Van Der Huizen, Wouter De Jong, Adrianus Johannes Van Der Linden, Bart Johan Ruisch, Lodewijk Schoon, Heleen Johanna Augusta De Smet, Frederik Hendrik Van Der Steen, Hubertus Cornelis Thomas Lucianes Van Strien, Alan Villena, Judith Johanna Berendina Walhof