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: 6825286
    Abstract: The invention relates to a method of making waterborne multifunctional materials, especially waterborne multifunctional materials comprising at least one primary carbamate group and a grafting moiety (cii). The method of the invention requires the successive or simultaneous reactions of a material P with a grafting material (c) and ammonia. Material P comprises two or more cyclic carbonate groups (bi). Grafting material (c) comprises at least one amine group (ci) and a grafting moiety (cii). The amine group (ci) is selected from primary amines, secondary amines, and mixtures thereof. The resulting waterborne multifunctional materials may be water dispersible, water soluble and/or useful in electrodeposition coatings.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 30, 2004
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Patricia A. Herrel
  • Publication number: 20040236031
    Abstract: Disclosed is a carbamate functional reactive polymer composition, comprising an acrylic resin (a′) comprising a functional group (F3) that is at least one of a primary carbamate group, a primary hydroxyl group, a secondary hydroxyl group, and mixtures thereof, and a nonvolatile solvent (b′nv) that is not a crystalline solid at 75° C. but is a fluid solid at a temperature of free radical polymerization and comprises (i) four or more isomers, and (ii) at least two reactive functional groups (F2) that are selected from primary carbamate, primary hydroxyl, and secondary hydroxyl, wherein no more than 10% of the sum of functional groups (F2) and (F3) are primary hydroxyl groups and at least 60% of the sum of functional groups (F2) and (F3) are primary carbamate groups. In one exemplary embodiment, the reactive polymer composition is made by a disclosed method.
    Type: Application
    Filed: June 11, 2004
    Publication date: November 25, 2004
    Applicant: BASF CORPORATION, a CORPORATION
    Inventors: Walter H. Ohrbom, Marvin L. Green, Gregory G. Menovcik
  • Publication number: 20040236034
    Abstract: Disclosed is a method of making reduced VOC polymers and coating compositions containing such polymers. Provided is a mixture (I) comprising a reactant mixture (a) of polymerizable components and a nonvolatile solvent (bnv) that (i) is not a crystalline solid at 25° C., (ii) is nonvolatile, (iii) comprises at least one functional group (F1) and (iv) is a fluid solid. Reactant mixture (a) is polymerized to provide a polymer (a′). The at least one functional group (F1) of nonvolatile solvent (bnv) is reacted with one or more reactants (e) to obtain a nonvolatile solvent (b′nv) comprising at least two functional groups (F2). Obtained is a mixture (II) comprising polymer (a′) in nonvolatile solvent (b′nv) comprising at least two functional groups (F2). The at least one functional group (F1) is substantially nonreactive: (1) with the components of reactive mixture (a), (2) under the polymerization conditions which polymerize reactant mixture (a), and (3) with polymer (a′).
    Type: Application
    Filed: June 11, 2004
    Publication date: November 25, 2004
    Inventors: Walter H. Ohrbom, Marvin L. Green, Gregory G. Menovcik
  • Patent number: 6822040
    Abstract: A basecoat composition includes an acrylic polymer prepared from a combination of monomers including at least about 30% by weight ethyl acrylate, methyl acrylate, methyl methacrylate, or a combination of these. The basecoat composition also includes methylated melamine-formaldehyde resin and up to about 10% by weight of a butylated melamine-formaldehyde resin, based on the weight of the basecoat composition vehicle and butylated melamine resin. An at least partially cured layer of the basecoat composition offers improved adhesion with a coating composition layer applied over it and cured, whether the coating composition layer applied over it is another layer of the basecoat composition itself or a layer of a clearcoat composition.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: November 23, 2004
    Assignee: BASF Corporation
    Inventors: Leslie G. Baugh, David K. K. Lau, Thomas C. Balch, Sergio E. Balatan, Walter H. Ohrbom, James A. Laugal, David J. Law
  • Publication number: 20040225028
    Abstract: Disclosed is a method of making an environmentally durable material, the method requiring providing a material comprising at least one functional group Fc, and subjecting the material to a free radical source such that substantially all functional groups Fc are eliminated but the material is not polymerized. In one embodiment, the functional group Fc is at least one of a nonaromatic carbon-carbon double bond, a hydrogen atom alpha to an aromatic ring, a hydrogen atom alpha to a carbon-carbon double bond, or a hydrogen atom attached to a tertiary substituted carbon. In another embodiment, functional group Fc is present in the material as a contaminant. In one exemplary embodiment, the material comprises from 0.05 to less than 15% by weight of functional group Fc, based on the total weight of the material.
    Type: Application
    Filed: June 11, 2004
    Publication date: November 11, 2004
    Inventors: Walter H. Ohrbom, Marvin L. Green, Gregory G. Menovcik
  • Publication number: 20040220318
    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: Application
    Filed: April 29, 2003
    Publication date: November 4, 2004
    Inventors: Thaddeus J. Lepkowski, Craig S. Schang, Walter H. Ohrbom
  • Patent number: 6812300
    Abstract: The invention relates to a method of making multifunctional materials, especially materials comprising at least one primary carbamate group and a grafting moiety (cii). The method of the invention requires the successive or simultaneous reactions of a material P with a grafting material (c) and ammonia. Material P comprises two or more cyclic carbonate groups (bi). Grafting material (c) comprises at least one amine group (ci) and a grafting moiety (cii). The amine group (ci) is selected from primary amines, secondary amines, and mixtures thereof. The resulting multifunctional materials are useful in a variety of curable coating compositions, including solventborne, waterborne, electrodeposition, liquid solvent free coatings, powder, and powder slurry.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Patricia A. Herrel
  • Patent number: 6812316
    Abstract: The curable coating compositions of the invention comprise a particulate component having at least one binder component (a) which is a solid at 75° F./24° C., and an additive component (b). The curable coating compositions further comprise a crosslinking component (c) reactive with the at least one binder component (a). Additive component (b) has from 12 to 72 carbon atoms, is substantially free of any heteroatoms, is not a crystalline solid at 75° F./24° C. and comprises a mixture of two or more structures selected from the group consisting of aliphatic structures for additive component (b), aromatic-containing structures for additive component (b), cycloaliphatic-containing structures for additive component (b), and mixtures thereof, wherein at least one of the two or more structures is either a cycloaliphatic-containing structure or an aromatic-containing structure.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: November 2, 2004
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, David J. Law, Robert D. Weise
  • Publication number: 20040186240
    Abstract: A carbamate or terminal urea functional vinyl polymer is prepared by reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form an ester bond and a free acid group from the anhydride; and reacting the free acid group with a compound having an epoxide group. The cyclic carboxylic acid anhydride group may be pendant to a vinyl polymer, or one of the compound having an hydroxyl group, a compound having the cyclic carboxylic acid anhydride group, and the compound having an epoxide group may have polymerizable ethylenic unsaturation that is polymerized, optionally with one or more copolymerizable monomers to form a vinyl polymer. When the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a).
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Inventors: Donald H. Campbell, Donald L. St. Aubin, Walter H. Ohrbom
  • Patent number: 6777495
    Abstract: Powder coating composition for automotive exterior coatings with compatibility with other coatings and resistance to yellowing include a film-forming material such as a polyepoxide and an acid-functional crosslinker that is a reaction product of 1,3,5-tris(2-hdyroxyethyl)isocyanurate and a cyclic anhydride.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: August 17, 2004
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, David J. Law, Robert D. Weise
  • Patent number: 6740706
    Abstract: The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising a reactive component (c) which is substantially free of any heteroatoms and is not a crystalline solid at room temperature and comprises (i) from 12 to 72 carbon atoms, and (ii) at least two functional groups, and subjecting the reactant mixture (a) in the solvent mixture (b) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide a mixture (d) of a polymer (a′) in solvent mixture (b), wherein reactive component (c) under the polymerization conditions is substantially nonreactive: (1) with the components of reactive mixture (a), (2) in the polymerization of reactant mixture (a) and (3) with the polymer (a′).
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: May 25, 2004
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Robert D. Weise, James A. Laugal
  • Publication number: 20040087737
    Abstract: Provided is a curable coating composition comprising a reactive compound having one or more structures of the formula: 1
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Applicant: BASF CORPORATION
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Publication number: 20040087731
    Abstract: The invention thus provides a curable coating composition comprising (A) a polymer resin comprising active hydrogen-containing functional group other than carbamate, (B) a curing agent having groups that are reactive with said functional groups on (A), and (C) a reactive additive comprising at least one compound having a molecular weight of from 131 to 2000 and comprising at least one primary carbamate group and at least one alkyl group selected from the group consisting of straight chain alkyl groups of more than 10 carbons, branched alkyl groups of from 5 to 30 carbons, and mixtures thereof, wherein one or both of (A) and (B) comprise groups that are reactive with the primary carbamate group of (C). The invention also provides a method of making a preferred embodiment of the reactive additive (C) and the reactive additive (C).
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Inventors: Walter H. Ohrbom, Paul J. Harris
  • Publication number: 20040087715
    Abstract: The invention provides a primary carbamate functional material of the formula: 1
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Applicant: BASF CORPORATION
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Publication number: 20040087728
    Abstract: A carbamate or terminal urea functional vinyl polymer is prepared by reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form an ester bond and a free acid group from the anhydride; and reacting the free acid group with a compound having an epoxide group. The cyclic carboxylic acid anhydride group may be pendant to a vinyl polymer, or one of the compound having an hydroxyl group, a compound having the cyclic carboxylic acid anhydride group, and the compound having an epoxide group may have polymerizable ethylenic unsaturation that is polymerized, optionally with one or more copolymerizable monomers to form a vinyl polymer. When the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a).
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Donald Campbell, Donald L. St. Aubin, Walter H. Ohrbom
  • Publication number: 20040087738
    Abstract: Provided is a compound having one or more structures of the formula: 1
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Walter H. Ohrbom, Craig S. Schang
  • Publication number: 20040087747
    Abstract: The invention provides an acrylic polymer or oligomer comprising random repeating units of the formula: 1
    Type: Application
    Filed: November 26, 2002
    Publication date: May 6, 2004
    Inventors: Walter H. Ohrbom, Craig S. Schang, Donald H. Campbell, Donald L. St. Aubin
  • Publication number: 20040068060
    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: Application
    Filed: October 4, 2002
    Publication date: April 8, 2004
    Inventors: Walter H. Ohrbom, Timothy S. December
  • Publication number: 20040068054
    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: Application
    Filed: October 4, 2002
    Publication date: April 8, 2004
    Applicant: BASF CORPORATION
    Inventors: Walter H. Ohrbom, David J. Law, Robert D. Weise, James A. Laugal
  • Publication number: 20040062871
    Abstract: A method for providing cured coating films free of popping defects. The method requires the application to a substrate of at least 2.0 mils/50.8 microns of a uncured curable coating composition comprising an anti-popping component (a), a film-forming component (b), and a crosslinking component (c), wherein anti-popping component (a) has from 12 to 72 carbon atoms, is substantially free of any heteroatoms, is not a crystalline solid at room temperature and comprises a mixture of two or more structures selected from the group consisting of aliphatic structures for anti-popping component (a), aromatic-containing structures for anti-popping component (a), cycloaliphatic-containing structures for anti-popping component (a), and mixtures thereof, at least one of the two or more structures being a cycloaliphatic-containing structure or an aromatic-containing structure. The coated uncured substrate is cured to provide a cured film free of popping defects with an average film build of at least 2.0 mils/50.8 microns.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Applicant: BASF CORPORATION
    Inventors: Walter H. Ohrbom, Sergio E. Balatan, David J. Law, Robert D. Weise