Patents by Inventor Rudolf J. Dams

Rudolf J. Dams 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: 20130274385
    Abstract: There is provided controlled degradation fibers, and methods of making such controlled degradation fibers.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 17, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yong K. Wu, Michael D. Crandall, Rudolf J. Dams, Michelle M. Hewitt, Ignatius A. Kadoma, Siegmund Papp, Jay M. Jennen, Sasha B. Myers
  • Publication number: 20130264061
    Abstract: A method of modifying a surface of a hydrocarbon-bearing formation is disclosed. The method includes contacting the surface of the hydrocarbon-bearing formation with a fluorinated amine, and the surface of the hydrocarbon-bearing formation includes a carbonate. The method can typically include introducing a treatment composition comprising solvent and at least one of the fluorinated amine or a salt thereof into the carbonate hydrocarbon-bearing formation. Hydrocarbon-bearing formations treated according to the method are also disclosed. Certain fluorinated amines useful for treating carbonate hydrocarbon-bearing formations and methods of making them are also disclosed.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 10, 2013
    Inventors: Jimmie R. Baran, JR., George G.I. Moore, Nathan E. Schultz, Dean M. Moren, Yu Yang, Rudolf J. Dams
  • Patent number: 8501641
    Abstract: Compositions comprising cationic compounds having fluorinated ether groups and hydrolyzable silane groups are provided, the compounds having the formula: (I)
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 6, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Suresh Iyer, Chetan P. Jariwala, Thomas P. Klun, Rudolf J. Dams
  • Patent number: 8476385
    Abstract: A composition including at least one first divalent unit represented by formula: Each Rf is independently selected from the group consisting of Rfa—(O)t—CHF—(CF2)n—; [Rfa—(O)t—C(L)H—CF2—O]m—W—; Rfb-O—(CF2)p-; F(CkF2k)—(O—CkF2k)P—O—CF2—; and CF3—O—(CF2)3—(OCF(CF3)—CF2)Z—O-L1-. Each Q is independently selected from the group consisting of a bond, —C(O)—N(R1)—, and —C(O)—O—. Each X is independently selected from the group consisting of alkylene and arylalkylene, wherein alkylene and arylalkylene are each optionally interrupted by at least one ether linkage and optionally terminated by —N(R1)—C(O)— or —O—C(O)—. R and R1 are each independently selected from the group consisting of hydrogen and alkyl having from 1 to 4 carbon atoms. Rfa represents a partially or fully fluorinated alkyl group having from 1 to 10 carbon atoms and optionally interrupted with at least one oxygen atom. Rfb is selected from the group consisting of CF3CFH— and F(CjF2j)-.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: July 2, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Rudolf J. Dams, Miguel A. Guerra, Klaus Hintzer, Michael Jürgens, Harald Kaspar, Kai H. Lochhaas, Andreas R. Maurer, Zai-Ming Qiu, Werner Schwertfeger, Michael S. Terrazas, Tilman C. Zipplies
  • Patent number: 8430097
    Abstract: A medicinal inhalation device having a non-metal coating coated on at least a portion thereof, and onto which non-metal coating an at least partially fluorinated compound is then covalently bonded.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 30, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Philip A. Jinks, Moses M. David, Rudolf J. Dams
  • Patent number: 8418759
    Abstract: Fluorinated polymers having first divalent units represented by formula, and a plurality of groups of formula —CH2—CH2—O—. Compositions containing the fluorinated polymer and solvent, and methods of treating hydrocarbon-bearing formations using these compositions are disclosed. A method of making a composition containing the fluorinated polymer is also disclosed.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 16, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: George G. I. Moore, Rudolf J. Dams, Jimmie R. Baran, Jr.
  • Patent number: 8414956
    Abstract: A medicinal inhalation device having a non-metal coating applied by plasma deposition under ion bombardment conditions.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 9, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Philip A. Jinks, Moses M. David, Rudolf J. Dams
  • Patent number: 8378018
    Abstract: A composition comprises a polymer having a first pendant group selected from at least one perfluorinated ether group or perfluoroalkanesulfonamido group, a second pendant group comprising an ammonium group, wherein the second pendant group is free of silicon, and a third pendant group comprising an ammonium group and a reactive silicon-containing group. The polymer and composition are useful for protecting a substrate, for example, to render the substrate oil repellent, water repellent, or both, or to provide stain repellency to the substrate.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Rudolf J. Dams, Thomas P. Klun, Inge Nuyts
  • Patent number: 8357751
    Abstract: A polymer is provided comprising a first pendant group selected from at least one of a perfluorinated ether group or a perfluoroalkanesulfonamido group, a second pendant group comprising an ammonium group, wherein the second pendant group is free of silicon, and a third pendant group comprising an ammonium group and a reactive silicon containing group. A composition comprising the polymer is provided. The polymer and composition are useful for protecting a substrate, for example, to render the substrate oil repellent, water repellent, or both, or to provide stain repellency to the substrate.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 22, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Rudolf J Dams, Suresh S. Iyer, Chetan P. Jariwala, Thomas P. Klun, Inge Nuyts
  • Patent number: 8354160
    Abstract: Method of forming a very hydrophobic, extremely hydrophobic or superhydrophobic surface comprising depositing a composition comprising hydrophobic microparticles, hydrophobic nanoparticles, or a mixture thereof and a binder in sufficient quantity to provide a hydrophobic or a superhydrophobic surface on a substrate having a micropatterned surface having raised portions, recessed portions or a combination thereof.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: January 15, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Kathryn M. Spurgeon, George Van Dyke Tiers, Vivian W. Jones, Brant U. Kolb, Chuntao Cao, Rudolf J. Dams
  • Patent number: 8343895
    Abstract: Additives for reducing the loss of drilling fluid into the formation surrounding a wellbore during the drilling process as well as drilling fluids comprising the additives and methods of using such additives. The additive includes elastomeric, polymeric, and acrylate, non-agglomerated microspheres.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: January 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Dirk Van de Peer, Francois Cyriel D'Haese, Rudolf J. Dams
  • Patent number: 8338517
    Abstract: Aqueous compositions comprising surfactant represented by a formula selected from the group consisting of: [Rf—(O)t—CHF—(CF2)n—COO?]iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—COO?}iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—SO3?}iXi+; and [CF3CFH—O—(CF2)p—COO?]iXi+; wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with at least one oxygen atom; Q is selected from the group consisting of F and CF3; R is selected from the group consisting of alkylene and arylene; Xi+ represents a cation having a valence i, wherein i is 1, 2 or 3; t is 0 or 1; m is 1, 2, or 3; n is 0 or 1; and p is an integer from 1 to 6. The aqueous composition comprises a non-fluorinated polymer and is essentially free of fluoropolymers. Methods of coating a surface and an article having a surface in contact with the composition are provided.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: December 25, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Rudolf J. Dams, Michael S. Terrazas
  • Publication number: 20120220719
    Abstract: A method of making a fluoropolyether elastomer containing triazine groups and having a glass transition temperature of less than ?40° C.
    Type: Application
    Filed: October 5, 2010
    Publication date: August 30, 2012
    Inventors: Steven G. Corveleyn, Rudolf J. Dams, Werner M.A. Grootaert, Gregg D. Dahlke, Miguel A. Guerra
  • Publication number: 20120097393
    Abstract: Method of treating a carbonate hydrocarbon-bearing formation. The method includes contacting the hydrocarbon-bearing formation with a composition comprising solvent and a fluorinated amphoteric compound. Carbonate hydrocarbon-bearing formations treated according to the method are also disclosed.
    Type: Application
    Filed: July 2, 2010
    Publication date: April 26, 2012
    Inventors: Rudolf J. Dams, Steven J. Martin, Yong K. Wu
  • Patent number: 8158264
    Abstract: A method of forming an easy-to-clean metal or metallized substrate, the method comprising forming a layer comprising silicon, oxygen, and hydrogen on at least a portion of a surface of the substrate by plasma deposition; and applying an at least partially fluorinated composition comprising at least one silane group to at least a portion of a surface of the layer comprising the silicon, oxygen, and hydrogen; and an easy-to-clean article made by the method are disclosed.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: April 17, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Moses M. David, Steven J. Martin, Rudolf J. Dams, Wayne W. Fan
  • Publication number: 20120065108
    Abstract: Fluorinated polymeric microparticles, processes for preparing them and uses thereof as additives for fluid loss control of drilling fluids and methods of fluid loss control of drilling fluid loss with fluorinated microparticles and uses of fluoropolymers as fluid loss control agents. Said fluorinated polymeric microparticles comprise one or more repeating units derived from one or more fluorinated monomers and one or more repeating units derived from one or more acrylate monomers.
    Type: Application
    Filed: June 2, 2010
    Publication date: March 15, 2012
    Inventors: Tom Opstal, Rudolf J. Dams, Rudy W. Van Campenhout, Francois C. D'Haese
  • Publication number: 20120055668
    Abstract: A method of treating a hydrocarbon-bearing formation that includes receiving data comprising a temperature and a brine composition of the hydrocarbon-bearing formation; selecting a treatment composition for the hydrocarbon-bearing formation comprising a fluorinated compound and solvent, wherein, at the temperature, a mixture of an amount of the brine composition and the treatment composition separates into at least two separate transparent liquid layers, and wherein the mixture is free of precipitated solid; and contacting the hydrocarbon-bearing formation with the treatment composition. Compositions containing certain fluorinated polymers and solvents containing water, monohydroxy alcohols, and ketones are also disclosed.
    Type: Application
    Filed: May 11, 2009
    Publication date: March 8, 2012
    Inventors: Yong K. Wu, Rudolf J. Dams, Steven J. Martin, Wayne W. Fan
  • Patent number: 8104469
    Abstract: A medicinal inhalation device having applied to surface thereof a composition comprising a monofunctional polyfluoropolyether silane and a non-fluorinated cross-linking agent.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 31, 2012
    Assignee: 3M Innovative Properties Company
    Inventor: Rudolf J. Dams
  • Publication number: 20120009438
    Abstract: There is provided a curable fluoroelastomer composition comprising i. a first compound which comprising repeating units derived from a fluorinated olefin and further comprising at least one functional group, ii. a second compound comprising repeating units selected from (—C4F8O—), (—C2F4O—) or (—CF2O) or a combination thereof and further containing at least one functional group capable of reacting with the at least one functional group of the first compound either directly or in the presence of a curing compound to form a triazine unit, wherein the composition after curing by forming triazine units has a glass transition temperature of less than ?60° C. Also provided are shaped articles comprising the cured compositions, methods of making cured compositions and methods for making shaped articles.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 12, 2012
    Inventors: Rudolf J. Dams, Steven G. Corveleyn, Werner M. A. Grootaert, Gregg D. Dahlke, Miguel A. Guerra
  • Patent number: 8080170
    Abstract: Compositions comprising cationic compounds having fluorinated ether groups and silane groups are provided, the compounds having the formula (I).
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: December 20, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Rudolf J. Dams, Suresh Iyer, Thomas P. Klun, Chetan P. Jariwala