Patents by Inventor Willem C. Vonk

Willem C. Vonk 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).

  • Patent number: 9115296
    Abstract: The present invention is directed to bituminous emulsions comprising bitumen, water, one or more emulsifiers systems and a diblock copolymer including one block of a monovinylaromatic hydrocarbon and one block of a conjugated diene, wherein the conjugated diene has a peak molecular weight from 30,000 to 78,000 and a vinyl content from 35 to 80 mol percent based on the number of repeat monomer units in the conjugated diene block. A block copolymer comprising at least two blocks of monovinylaromatic hydrocarbon and at least one block of conjugated diene, the block copolymer selected from linear triblock copolymers having a peak molecular weight that is 1.5 to 3.0 times the peak molecular weight of the diblock copolymer, multiarm coupled block copolymers having a peak molecular weight that is 1.5 to 9.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 25, 2015
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Robert Q. Kluttz, Keith E. Stephens, Willem C. Vonk, Jan Korenstra
  • Patent number: 8357735
    Abstract: The present invention provides a polymeric composition that includes a coupled block copolymer having a plurality of arms comprising at least two blocks of a monovinylaromatic hydrocarbon that are located on at least two of the plurality of arms, and at least one block of a conjugated diene located on at least one of the plurality of arms, and optionally one or more block copolymers comprising at least one block of monovinylaromatic hydrocarbon and at least one block of a conjugated diene, the block copolymer may be selected from linear copolymers, linear triblock copolymers, multiarm coupled block copolymers, and mixtures thereof. The molecular weight of the polymeric composition is in the range from about 100 kg/mol to about 400 kg/mol.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 22, 2013
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Erik Jan Scholten, Willem C. Vonk
  • Publication number: 20120219811
    Abstract: The present invention provides a polymeric composition that includes a coupled block copolymer having a plurality of arms comprising at least two blocks of a monovinylaromatic hydrocarbon that are located on at least two of the plurality of arms, and at least one block of a conjugated diene located on at least one of the plurality of arms, and optionally one or more block copolymers comprising at least one block of monovinylaromatic hydrocarbon and at least one block of a conjugated diene, the block copolymer may be selected from linear copolymers, linear triblock copolymers, multiarm coupled block copolymers, and mixtures thereof. The molecular weight of the polymeric composition is in the range from about 100 kg/mol to about 400 kg/mol.
    Type: Application
    Filed: March 22, 2012
    Publication date: August 30, 2012
    Inventors: Erik Jan Scholten, Willem C. Vonk
  • Publication number: 20110034594
    Abstract: The present invention provides a polymeric composition that includes a coupled block copolymer having a plurality of arms comprising at least two blocks of a monovinylaromatic hydrocarbon that are located on at least two of the plurality of arms, and at least one block of a conjugated diene located on at least one of the plurality of arms, and optionally one or more block copolymers comprising at least one block of monovinylaromatic hydrocarbon and at least one block of a conjugated diene, the block copolymer may be selected from linear copolymers, linear triblock copolymers, multiarm coupled block copolymers, and mixtures thereof. The molecular weight of the polymeric composition is in the range from about 100 kg/mol to about 400 kg/mol.
    Type: Application
    Filed: April 17, 2008
    Publication date: February 10, 2011
    Inventors: Erik Jan Scholten, Willem C. Vonk
  • Patent number: 7560503
    Abstract: The present invention relates to gels prepared from novel anionic block copolymers of aromatic vinyl compounds and conjugated dienes. The block copolymers include a high molecular weight linear and/or radial block copolymer component (SBC1 and/or SBC2), and a diblock component (E1). The block copolymer may be combined with tackifying resins, oils and other components to form the gels of the present invention.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: July 14, 2009
    Assignee: Kraton Polymers U.S. LLC
    Inventors: David J. St. Clair, Willem C. Vonk, Cornelis Martinus van Dijk
  • Publication number: 20080114099
    Abstract: The present invention is directed to bituminous emulsions comprising bitumen, water, one or more emulsifiers and a block copolymer composition.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 15, 2008
    Applicant: KRATON POLYMERS US LLC
    Inventors: Robert Q. Kluttz, Keith E. Stephens, Willem C. Vonk, Jan Korenstra
  • Patent number: 7297741
    Abstract: The present invention relates to pressure sensitive adhesive compositions prepared from novel anionic block copolymers of aromatic vinyl compounds and conjugated dienes. The block copolymers are a mixture of a high molecular weight linear and/or radial block copolymer component (SBC1 and/or SBC2), and a diblock copolymer component (D1). The block copolymer may be combined with other block copolymers, tackifying resins, oils and other components to form the adhesives of the present invention. The pressure sensitive adhesives of the present invention maintain their performance at elevated temperatures and fail cohesively making them particularly useful for die-cuttable label applications. The pressure sensitive adhesives compositions may also comprise ester plasticizers typically used for PVC and thus make adhesives particularly suitable for PVC film labels and decals.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 20, 2007
    Assignee: Kraton Polymers U.S. LLC
    Inventors: David J. St. Clair, Willem C. Vonk, Cornelis Martinus van Dijk
  • Patent number: 7048979
    Abstract: The present invention relates to articles prepared from novel anionic block copolymers of mono vinyl aromatics and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: May 23, 2006
    Assignee: KRATON Polymers U.S. LLC
    Inventors: Kathryn J. Wright, Willem C. Vonk, Cornelis Martinus van Dijk
  • Patent number: 4904713
    Abstract: Bituminous composition comprising a bitumen, an elastomeric, optionally hydrogenated, block copolymer containing at least two alkenyl arene blocks A and at least one conjugated diene block B, and a polymer of a monoalkenyl arene of which polymer the number average molecular weight is the range of 0.25 to 2 times the number average molecular weight of the polymeric blocks A.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: February 27, 1990
    Assignee: Shell Oil Company
    Inventors: Willem C. Vonk, Hendrik J. Brouwer, Anthony L. Bull
  • Patent number: 4876130
    Abstract: A bituminous composition comprising:(a) from 99 to 85% w of a mixture of:(1) 45 to 99.8% w of a bituminous component having a penetration of at least 800 dmm at 25.degree. C.;(2) 0.1 to 30% w of a lithium salt of a C.sub.10-40 fatty acid or hydroxy fatty acid;(3) 0.1 to 25% w of an elastomer; and(b) from 1 to 15% w of an amorphous silica filler.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: October 24, 1989
    Assignee: Shell Oil Company
    Inventors: Willem C. Vonk, Gerrit van Gooswilligen
  • Patent number: 4749622
    Abstract: A composition which contains (a) 80 to 99% w of a bitumen component; (b) 1 to 20% w of an elastomer; (c) 1 to 60% w of a hydrocarbon resin which has been modified to contain carboxyl, carboxylic anhydride, hydroxyl and/or amino groups; and (d) 1 to 100% w of an inorganic filler, the weight percentages being based on the total weight of the bitumen component and elastomer, is suitable for coating structures and a process for applying the composition at elevated temperature onto a suitable structure.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: June 7, 1988
    Assignee: Shell Oil Company
    Inventors: Willem C. Vonk, Gerrit V. Gooswilligen
  • Patent number: 4738996
    Abstract: A composition which contains (a) 80 to 99% w of a bitumen component; (b) 1 to 20% w of an elastomer; (c) 1 to 60% w of a hydrocarbon resin which has been modified to contain carboxyl, carboxylic anhydride, hydroxyl and/or amino groups; and (d) 1 to 100% w of an inorganic filler, the weight percentages being based on the total weight of the bitumen component and elastomer, is suitable for coating structures and a process for applying the composition at elevated temperature onto a suitbale structure.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 19, 1988
    Assignee: Shell Oil Company
    Inventors: Willem C. Vonk, Gerrit van Gooswilligen
  • Patent number: 4629754
    Abstract: A binder composition which is pigmentable comprising from 30 to 99 wt % of a mineral lubricating oil extract and from 70 to 1 wt % of a petroleum resin and/or coumarone-indene resin, characterized in that the petroleum resin and/or coumarone-indene resin contains moieties derived from carboxylic acid, carboxylic acid anhydride or hydroxyl groups.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: December 16, 1986
    Assignee: Shell Oil Company
    Inventors: Johannes L. M. Syrier, Willem C. Vonk, Gerrit van Gooswilligen