Patents by Inventor Paul Ralph Van Rheenen

Paul Ralph Van Rheenen 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: 7306854
    Abstract: The present invention relates to: a method of preparing a capstock layer that includes a comb copolymer; a method of preparing a multi-layered polymeric composite, at least one layer of which is a capstock layer; and a multi-layered composite formed by the method of preparing a multi-layered polymeric composite.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: December 11, 2007
    Assignee: Rohm and Haas Company
    Inventor: Paul Ralph Van Rheenen
  • Patent number: 7033639
    Abstract: A coating composition including a polyaniline particle and a binder is provided. The polyaniline particle contains a core polymer particle with strong acid groups and an attached polyaniline polymer, and has a particle diameter in a select range. Coatings prepared from the coating composition may be employed to provide corrosion resistance to metal substrates. A process for preparing the polyaniline particle and an article including a coating prepared from the coating composition are also provided.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: April 25, 2006
    Assignee: Rohm and Haas Company
    Inventors: Michael DeWayne Kelly, Thomas Glenn Madle, Paul Ralph Van Rheenen
  • Patent number: 6864309
    Abstract: An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 8, 2005
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Patent number: 6815466
    Abstract: A colloidally and sedimentation stable coating composition containing ion exchange resins is disclosed. A method of using a colloidally and sedimentation stable coating composition containing ion exchange resins is also disclosed.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: November 9, 2004
    Assignee: Rohm and Haas Company
    Inventor: Paul Ralph Van Rheenen
  • Patent number: 6797775
    Abstract: A method of forming a thermoplastic melt blend including a segmental copolymer, wherein the melt blend displays improved processing characteristics, is disclosed. A method of forming a plastic article including a thermoplastic and a segmental copolymer is further disclosed, as is a plastic article formed thereby.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: September 28, 2004
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Publication number: 20040167269
    Abstract: An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 26, 2004
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Publication number: 20040126551
    Abstract: The present invention relates to: a method of preparing a capstock layer that includes a comb copolymer; a method of preparing a multi-layered polymeric composite, at least one layer of which is a capstock layer; and a multi-layered composite formed by the method of preparing a multi-layered polymeric composite.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 1, 2004
    Inventor: Paul Ralph Van Rheenen
  • Publication number: 20040110900
    Abstract: A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.
    Type: Application
    Filed: November 19, 2003
    Publication date: June 10, 2004
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6723775
    Abstract: The present invention provides an aqueous polymerization method for preparing graft copolymers, and copolymer compositions produced therefrom. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Patent number: 6716915
    Abstract: A method of forming a toughened article from a blend of a thermosetting polymer and a comb copolymer is disclosed, along with the toughened thermoset article produced thereby. Compositions including a thermosetting polymer and a comb copolymer are also disclosed.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: April 6, 2004
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6682809
    Abstract: The present invention relates to: a method of preparing a capstock layer that includes a comb copolymer; a method of preparing a multi-layered polymeric composite, one layer of which is a capstock layer; and a capstock layer and a multi-layered composite formed, respectively, thereby.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: January 27, 2004
    Assignee: Rohm and Haas Company
    Inventor: Paul Ralph Van Rheenen
  • Patent number: 6670419
    Abstract: A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: December 30, 2003
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6657011
    Abstract: Adhesive compositions comprising (a) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate, acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic acid or combinations thereof; and (b) from 1 to 55% on a dry weight basis of a polymeric additive comprising a low molecular weight polymer having a number average molecular weight of 20,000 or less and which comprises polymerized units of at least one ethylenically unsaturated monomer and 5 weight percent or less of a polymerized acid-containing monomer. In preferred form, the polymeric additive is polymerized in the presence of a metal chelate chain transfer agent. In certain embodiments, the polymeric additive has a midpoint Tg of at least 0° C. or greater. Further embodiments of the present invention include methods for forming the polymeric additive in situ in the adhesive composition.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: December 2, 2003
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Kim Sang Ho, Paul Ralph Van Rheenen
  • Publication number: 20030144417
    Abstract: A method of forming a thermoplastic melt blend including a segmental copolymer, wherein the melt blend displays improved processing characteristics, is disclosed. A method of forming a plastic article including a thermoplastic and a segmental copolymer is further disclosed, as is a plastic article formed thereby.
    Type: Application
    Filed: September 13, 2001
    Publication date: July 31, 2003
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Publication number: 20030130362
    Abstract: A colloidally and sedimentation stable coating composition containing ion exchange resins is disclosed. A method of using a colloidally and sedimentation stable coating composition containing ion exchange resins is also disclosed.
    Type: Application
    Filed: November 18, 2002
    Publication date: July 10, 2003
    Inventor: Paul Ralph Van Rheenen
  • Patent number: 6589651
    Abstract: The present invention provides adhesive compositions, particularly pressure sensitive adhesive compositions, comprised of from 30 weight percent to 70 weight percent of water insoluble graft copolymers dispersed in an aqueous medium. The graft copolymers are comprised of (i) from 1 weight percent to 30 weight percent of macromonomer, based on the total weight of the copolymer, wherein the macromonomer is water insoluble and has a number average molecular weight of from 2,000 to 50,000 g/mole and comprises from 85 to 100 weight percent polymerized units of at least one first ethylenically unsaturated monomer, 5 mole percent or less of polymerized mercapto-olefin compounds, and 10 weight percent or less polymerized acid-containing monomer; and (ii) from 70 weight percent to 99 weight percent of polymerized units of at least one second ethylenically unsaturated monomer, based on the total weight of the copolymer. In certain preferred embodiments, the adhesive compositions further comprise from 0.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6555615
    Abstract: The invention relates to a removable coating and a method for preparing that removable coating. The method comprises applying to a surface of a substrate a removable coating composition including an aqueous dispersion of film forming polymer and amphoteric surfactant having isoelectric point at pH=3 to pH=8.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 29, 2003
    Assignee: Rohm and Haas Company
    Inventor: Paul Ralph Van Rheenen
  • Publication number: 20030065090
    Abstract: A coating composition including a polyaniline particle and a binder is provided. The polyaniline particle contains a core polymer particle with strong acid groups and an attached polyaniline polymer, and has a particle diameter in a select range. Coatings prepared from the coating composition may be employed to provide corrosion resistance to metal substrates. A process for preparing the polyaniline particle and an article including a coating prepared from the coating composition are also provided.
    Type: Application
    Filed: April 19, 2002
    Publication date: April 3, 2003
    Inventors: Michael DeWayne Kelly, Thomas Glenn Madle, Paul Ralph Van Rheenen
  • Publication number: 20020161098
    Abstract: The present invention provides an aqueous polymerization method for preparing graft copolymers, and copolymer compositions produced therefrom. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Application
    Filed: September 13, 2001
    Publication date: October 31, 2002
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Publication number: 20020064652
    Abstract: The present invention provides adhesive compositions, particularly pressure sensitive adhesive compositions, comprised of from 30 weight percent to 70 weight percent of water insoluble graft copolymers dispersed in an aqueous medium. The graft copolymers are comprised of (i) from 1 weight percent to 30 weight percent of macromonomer, based on the total weight of the copolymer, wherein the macromonomer is water insoluble and has a number average molecular weight of from 2,000 to 50,000 g/mole and comprises from 85 to 100 weight percent polymerized units of at least one first ethylenically unsaturated monomer, 5 mole percent or less of polymerized mercapto-olefin compounds, and 10 weight percent or less polymerized acid-containing monomer; and (ii) from 70 weight percent to 99 weight percent of polymerized units of at least one second ethylenically unsaturated monomer, based on the total weight of the copolymer. In certain preferred embodiments, the adhesive compositions further comprise from 0.
    Type: Application
    Filed: September 13, 2001
    Publication date: May 30, 2002
    Inventors: Willie Lau, Paul Ralph Van Rheenen