Patents by Inventor Walter H. Ohrbom

Walter H. Ohrbom 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: 7122605
    Abstract: The invention relates to a method of making an acrylic graft polymer, especially a urethanized acrylic graft polymer. The method of the invention requires an ethylenically unsaturated monomer mixture (a) comprising a monomer (ai) of a particular structure having at least one cyclic carbonate group and the polymerization of the monomer mixture (a) under free radical polymerization conditions to make an acrylic backbone polymer (b) comprising one or more cyclic carbonate functional groups (bi). At least one grafting moiety (c) is then provided, said grafting moiety (c) comprising at least one amine group (ci) selected from primary amines, secondary amines, and mixtures of both primary and secondary amines. The grafting moiety (c) is then grafted onto acrylic backbone polymer (b) via reaction between the at least one amine group (ci) and cyclic carbonate functional groups (bi) so as to make an urethanized acrylic graft polymer.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: October 17, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Patricia A. Herrel, John W. Rehfuss
  • Patent number: 7087675
    Abstract: The ?-hydroxy carbamate, ethylenically unsaturated monomer of the invention can be polymerized as a homopolymer or copolymerized with other monomers. The polymerization can be carried out in an aqueous medium. The ?-hydroxy carbamate monomer is polymerized to form water-soluble homopolymers or, if polymerized as a mixture with one or more comonomers, copolymers that are soluble, emulsifiable, or dispersible in water. The ?-hydroxy carbamate monomer can be used as a replacement monomer for acrylamide.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: August 8, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Patricia A. Herrel
  • Patent number: 7060357
    Abstract: A coating composition contains solid particulates of a mixture of an aminoplast crosslinking agent, a solid polymer having functionality reactive with the aminoplast crosslinking agent, and a crystalline, carbamate-functional additive. The crystalline, carbamate-functional additive has a melting point of at least about 30° C. and is up to about 15% by weight of the powder coating composition.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: June 13, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, David J. Law, Robert D. Weise, James A. Laugal
  • Patent number: 7034080
    Abstract: A coating composition comprises at least one pigment dispersed in an acrylic polymer, wherein the acrylic polymer is prepared by first polymerizing a mixture of ethylenically unsaturated monomers comprising: (a) at least about 15% by weight unsaturated meta-isopropenyl-?,?-dimethylbenzyl isocyanate; (b) at least one further aromatic polymerizable monomer, in an amount so that monomers (a) and (b) combined are at least about 50 percent by weight of the mixture of ethylenically unsaturated monomers; and (c) at least one alkyl (meth)acrylate to form a polymer, and secondly, reacting the isocyanate groups of the polymer with a (d) a hydroxyalkyl acid in which the hydroxy and acid groups are separated by at least four atoms or with a diol having both a primary hydroxyl group and a secondary hydroxyl group and then with a cyclic anhydride and, optionally, with one or more members selected from the group consisting of (e) hydroxyethylene ethyl urea, (f) methoxypolyethylene glycols, and (g) other, different materi
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: April 25, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Nicholas Caiozzo, Sergio Balatan, Zenon Paul Czornij, Clair J. Certo, Janice E. Echols
  • Patent number: 7030263
    Abstract: A method of preparing a carbamate or urea-functional compound is described comprising the step of reacting a lactone or hydroxy carboxylic acid with a compound (A) comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group capable of reacting with the hydroxy carboxylic acid or in a ring-opening reaction with a lactone. The compound thus prepared is useful in curable compositions.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: April 18, 2006
    Assignee: BASF Corporation
    Inventors: Brian D. Bammel, John D. McGee, Walter H. Ohrbom, Todd A. Seaver, Gregory G. Menovcik, Paul J. Harris, John W. Rehfuss
  • Patent number: 7022747
    Abstract: A polymeric material is produced by atomizing into droplets a composition containing addition-polymerizable material and reacting the addition polymerizable material in the droplets to produce the particulate product. The polymeric product may be, for example, a powder coating composition.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: April 4, 2006
    Assignee: BASF Corporation
    Inventors: Thaddeus J. Lepkowski, Craig S. Schang, Walter H. Ohrbom
  • Patent number: 6992149
    Abstract: A powder coating composition comprising at least about 0.1% by weight of a reaction product of an aminoplast and a compound having one carbamate group has improved smoothness.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: January 31, 2006
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Thomas S. Richards, Timothy S. December, James A. Laugal
  • Patent number: 6977309
    Abstract: Provided is a compound having one or more structures of the formula: wherein X is a primary carbamate group, Y is a hydroxy or halide group, n is an integer of 2 or more, n? is an integer of 1 or more, and R0, R1, R2, R3, R4 and R5 may be H or a group selected from alkyl groups, aliphatic groups, cycloaliphatic groups, aromatic groups and mixtures thereof, with the provisos that at least one R1 or R2 group is selected from the group consisting of aliphatic groups, cycloaliphatic groups, and aromatic groups, and in substantially all structures primary carbamate group X is attached to a carbon atom having a lower degree of substitution than a carbon atom to which functional group Y is attached. The invention provides a method of making the claimed compound.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: December 20, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Patent number: 6962730
    Abstract: The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups, and (b) a crosslinking agent comprising a plurality of functional groups (iii) reactive with the functional groups (ii) of compound (a), wherein functional groups (ii) and (iii) are selected such that reaction there between produces a thermally irreversible chemical linkage. The coating compositions of the invention provide improved solids, chip resistance, flexibility and/or scratch & mar resistance while maintaining desirable and/or improved performance characteristics with regard to environmental etch, relative humidity, QCT, chip resistance, thermoshock resistance, cold crack resistance, adhesion and the like.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: November 8, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, John A. Gilbert, Patricia A. Herrel, Marvin L. Green, Joanne Casale, Thomas G. Savino
  • Patent number: 6914096
    Abstract: A curable coating composition containing a carbamate-functional reactive additive is made by reacting a compound having at least one epoxy group and at least one branched alkyl group of 5 to 30 carbons with carbon dioxide, to produce a carbonate functional compound, and then with ammonia. The carbamate-functional reactive additive is incorporated into a curable coating composition. The coating composition may contain a polymer comprising active hydrogen-containing functionality other than carbamate and a curing agent having groups that are reactive with the polymer active hydrogen-containing functionality, wherein one or both of polymer and curing agent comprise groups that are reactive with the carbamate group of the carbamate-functional reactive additive. The coating composition is applied to an article and cured.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: July 5, 2005
    Assignee: BASF Corporation
    Inventors: Walter H Ohrbom, Paul J. Harris
  • Patent number: 6900270
    Abstract: Provided is a curable coating composition comprising a reactive compound having one or more structures of the formula: wherein X is a primary carbamate group, Y is a hydroxy or halide group, n is an integer of 2 or more, n? is an integer of 1 or more, and R0, R1, R2, R3, R4 and R5 may be H or a group selected from alkyl groups, aliphatic groups, cycloaliphatic groups, aromatic groups and mixtures thereof, with the provisos that at least one R1 or R2 group is selected from the group consisting of aliphatic groups, cycloaliphatic groups, aromatic groups, and mixtures thereof, and in substantially all structures primary carbamate group X is attached to a carbon atom having a lower degree of substitution than a carbon atom to which functional group Y is attached.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: May 31, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Patent number: 6890994
    Abstract: The invention provides an acrylic polymer or oligomer comprising random repeating units of the formula: a method of making said polymers and curable coating compositions comprising the same.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: May 10, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang, Donald Campbell, Donald L. St. Aubin
  • Patent number: 6881791
    Abstract: A curable, water-based coating composition comprising a reaction product of: a copolymer comprising a free-radical polymerization product of: a first block comprising a reaction product of: a plurality of ethylenically unsaturated monomers, and a vinyl aromatic hydrocarbon monomer, wherein at least one monomer of the plurality of ethylenically unsaturated monomers includes a functional group that can react with a water-dispersible cross-linking agent, and at least one monomer of the plurality of ethylenically unsaturated monomers is present in an amount such that it can render the copolymer water dispersible, and a second block comprising a reaction product of at least one ethylenically unsaturated monomer, wherein at least a portion of which are non-functional, and a water-dispersible cross-linking agent, wherein the water-based copolymer is free of salt structures.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: April 19, 2005
    Assignee: BASF Corporation
    Inventors: Swaminathan Ramesh, Paul Harris, Wolfgang Bremser, Walter H. Ohrbom
  • Patent number: 6858693
    Abstract: The invention provides carbamate-functional resins and coating compositions incorporating said resins that have improved adhesion with respect to subsequently applied films or coatings. More particularly, the invention relates to carbamate-functional addition polymers having at least 250 grams of polymer per carbamate group which are made with less than 35 percent by weight of nonfunctional monomers, preferably with less than 20 percent by weight and most preferably from 0 to less than 10 percent by weight, based on the total weight of the polymer. The invention further provides a method of making a carbamate-functional polymer and carbamate-functional polymers made by the claimed method. Finally, the invention provides a method for improving the adhesion of a first coating composition to a subsequently applied material as well as a method of making a composite comprising a coated substrate, an adhesive composition, and a glass having at least one surface.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: February 22, 2005
    Assignee: BASF Corporation
    Inventors: Donald H. Campbell, Walter H. Ohrbom, Joseph Borst, Michael A. Gessner, Donald L. St. Aubin, Marvin L. Green, Bruce E. Oermann
  • Patent number: 6858674
    Abstract: The invention provides a primary carbamate functional material of the formula: a method of making said materials and curable coating compositions comprising the primary carbamate functional material of the invention. The primary carbamate functional material comprises the reaction product of (1) at least one material P comprising one or more functional groups (i) which are reactive with a functional group Z but which are substantially nonreactive with a primary carbamate group X of monomeric reactive compound (2), and (2) a monomeric reactive compound comprising one or more structures of a particular formula.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: February 22, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Patent number: 6855789
    Abstract: The invention provides carbamate-functional resins and coating compositions incorporating said resins that have improved adhesion with respect to subsequently applied films or coatings. More particularly, the invention relates to carbamate-functional addition polymers having at least 250 grams of polymer per carbamate group which are made with less than 35 percent by weight of nonfunctional monomers, preferably with less than 20 percent by weight and most preferably from 0 to less than 10 percent by weight, based on the total weight of the polymer. The invention further provides a method of making a carbamate-functional polymer and carbamate-functional polymers made by the claimed method. Finally, the invention provides a method for improving the adhesion of a first coating composition to a subsequently applied material as well as a method of making a composite comprising a coated substrate, an adhesive composition, and a glass having at least one surface.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: February 15, 2005
    Assignee: BASF Corporation
    Inventors: Donald H. Campbell, Walter H. Ohrbom, Joseph Borst, Michael A. Gessner, Donald L. St. Aubin, Marvin L. Green, Bruce E. Oermann
  • Patent number: 6849337
    Abstract: A powder coating composition contains solid particulates of a mixture of a solid material having at least two epoxide groups, each beta to a urethane or urea group, and a solid crosslinker reactive with epoxide groups.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: February 1, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Timothy S. December
  • Patent number: 6844395
    Abstract: Compositions comprising a reaction product of a) an asymmetrical, saturated polyisocyanate that is non-cyclic, non-aromatic, and has at least 3 carbon atoms in the polyisocyanate per isocyanate group, b) a material that is at least one of i) a primary carbamate material having at least one functional group reactive with an isocyanate and at least one primary carbamate group or a group convertible to a primary carbamate group and ii) a reaction product of the primary carbamate material and an extending agent, and c) optionally, a chain extension agent that has at least difunctional reactivity with an isocyanate. Also, methods of making these compositions.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 18, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang, Joanne Casale, Thaddeus J. Lepkowski
  • Patent number: 6841619
    Abstract: The present invention provides an olefin-based block copolymer that has an olefin block that is substantially saturated and at least one (poly)ester or (poly)ether block. The olefin-based block copolymer of the invention can be prepared by reacting a liquid hydroxyl-functional, saturated or substantially saturated olefin polymer with a chain-extension reagent that is reactive with hydroxyl groups and will polymerize in a head-to-tail arrangement of monomer units. The olefin-based block copolymer of the invention can be used to prepare an adhesion promoter that provides excellent adhesion of subsequent coating layers to olefinic substrates like TPO and superior properties as compared to previously used adhesion promoters containing chlorinated polyolefins.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: January 11, 2005
    Assignee: BASF Corporation
    Inventors: John D. McGee, Daniel Blickberndt, Craig Schang, Walter H. Ohrbom, Keri Krueger
  • Patent number: 6838530
    Abstract: The invention provides a method of making a number of different multifunctional acrylic materials from a limited number of starting materials. The method of the invention requires the product of a masterbatch of an acrylic oligomer or polymer having two or more cyclic carbonate functional groups. A first portion of the masterbatch is then reacted with ammonia and a grafting material (c) in either successive or simultaneous reactions to provide a first multifunctional acrylic oligomer or polymer. Additional portions of the masterbatch may be reacted with ammonia and other grafting materials (c), different from the first grafting material (c), in either successive or simultaneous reactions to provide different multifunctional acrylic oligomers or polymers.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 4, 2005
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Patricia A. Herrel