Patents by Inventor John W. Rehfuss

John W. Rehfuss 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: 5639554
    Abstract: A coating composition including a first component comprising a compound having appended thereto more than one carbamate functional group, and further including a second component reactive with said carbamate groups, which is a substituted acrylamide compound. The composition is useful as a clearcoating composition in a color-plus-clear composite coating.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: June 17, 1997
    Assignee: BASF Corporation
    Inventors: John D. McGee, Brian D. Bammel, John W. Rehfuss
  • Patent number: 5639828
    Abstract: A curable coating composition is described comprising two components that are reactive with one another upon curing to form urethane linkages. The urethane-forming components are an active hydrogen groups-containing component and a polyisocyanate, or a carbamate groups-containing component and a carbamate group-reactive component. The composition further comprises a third component that includes one or more epoxide groups. Coatings prepared with this coating composition can be cured and coated with additional coating(s), providing good intercoat adhesion to the subsequent coating.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: June 17, 1997
    Assignee: BASF Corporation
    Inventors: Rodney L. Briggs, John W. Rehfuss, Walter H Ohrbom, Gregory G. Menovcik
  • Patent number: 5605965
    Abstract: High gloss and/or high DOI coatings are described. The coatings are based on a curable coating composition comprising:(a) a first component comprising a polymer backbone having appended thereto at least one carbamate functional group, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate group.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: February 25, 1997
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Donald L. St. Aubin
  • Patent number: 5576063
    Abstract: A method of preparing a multilayer coating is described. The method comprises the steps of:(1) applying onto a substrate a first curable coating composition comprising two components that are reactive with one another to form urethane linkages and a third component that includes one or more epoxy groups,(2) curing the first curable coating composition to form a cured coating,(3) applying a second curable coating composition onto the surface of the coating from step (2), and(4) curing the second curable coating composition.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 19, 1996
    Assignee: BASF Corporation
    Inventors: Rodney L. Briggs, John W. Rehfuss, Walter H. Ohrbom, Gregory G. Menovcik
  • Patent number: 5559195
    Abstract: A coating composition including a first component comprising a compound having appended thereto more than one carbamate functional group, and further including a second component reactive with said carbamate groups, which is a substituted acrylamide compound. The composition is useful as a clearcoating composition in a color-plus-clear composite coating.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 24, 1996
    Assignee: BASF Corporation
    Inventors: John D. McGee, Brian D. Bammel, John W. Rehfuss
  • Patent number: 5552497
    Abstract: A method of preparing a carbamate-functional acrylic polymer is described, comprising the steps of:(A) preparing a mixture comprising:(1) one or more acrylic monomers comprising hydroxy-functional groups or groups that can be converted to hydroxy functional groups,(2) optionally, one or more other addition polymerizable monomers, and(3) a carbamate compound, and(B) heating said mixture in the presence of a free radical initiator and an esterification catalyst, thereby forming a carbamate-functional acrylic polymer.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: September 3, 1996
    Assignee: BASF Corporation
    Inventors: Robert J. Taylor, John W. Rehfuss, Joseph Borst, Paul Lessek, Donald L. St. Aubin
  • Patent number: 5512639
    Abstract: Curable compositions are disclosed comprising:(A) carbamate-functional compound that is the reaction product of a mixture comprising:(1) a monomeric polyisocyanate, and(2) a compound comprising a group that is reactive with isocyanate and a carbamate group or group that can be converted to carbamate, and(B) a compound having a plurality of functional groups that are reactive with carbamate groups on said carbamate-functional compound.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: April 30, 1996
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Walter H. Ohrbom
  • Patent number: 5474811
    Abstract: A method of producing an article with a color-plus-clear composite coating is described. The method comprises the steps of applying a colored coating composition to a substrate, and applying a clear coating composition over the colored coating composition, wherein the clear coating composition is a curable coating composition comprising:(a) a first component comprising a polymer backbone having appended thereto at least one carbamate functional group, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate group.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: December 12, 1995
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Donald L. St. Aubin
  • Patent number: 5373069
    Abstract: Curable compositions are disclosed comprising:(A) a carbamate-functional polymer that is the reaction product of a mixture comprising:(1) a polymer that is the reaction product of a mixture comprising:(a) a polyisocyanate and(b) an active hydrogen-containing chain extension agent, and(2) a compound comprising a group that is reactive with said polymer (A) (1) and a carbamate group or group that can be converted to carbamate, and(B) a compound having a plurality of functional groups that are reactive with carbamate groups on said carbamate-functional polymer.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: December 13, 1994
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Walter H. Ohrbom
  • Patent number: 5371167
    Abstract: A coating composition is described comprising two components that are reactable with each other to cure the coating. The two components are:(a) a carboxyl-functional polyurethane component that is the reaction product of:(i) a polyisocyanate compound, and(ii) a compound comprising at least one acid group and at least one isocyanate-reactive group,(b) a component comprising at least two groups that are reactive with the epoxy groups on the polyurethane compound.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: December 6, 1994
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Walter H. Ohrbom
  • Patent number: 5356669
    Abstract: A method of producing an article with a color-plus-clear composite coating is described. The method comprises the steps of applying a colored coating composition to a substrate, and applying a clear coating composition over the colored coating composition, wherein the clear coating composition is a curable coating composition comprising:(a) a first component comprising a polymer backbone having appended thereto at least one carbamate functional group, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate group.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: October 18, 1994
    Assignee: BASF Corporation
    Inventors: John W. Rehfuss, Donald L. St. Aubin
  • Patent number: 5336566
    Abstract: Compounds are described having the formula: ##STR1## Z represents a cyanuric ring nucleus or the residue of a polyol, L.sub.1, L.sub.2, and L.sub.3 each independently represents a divalent linking group or a covalent bond, andR.sub.1, R.sub.2, and R.sub.3 each independently represents H, alkyl, cycloalkyl, or aryl.These compounds are useful as crosslinking agents for curable compositions such as coating compositions.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Corporation
    Inventor: John W. Rehfuss
  • Patent number: 5300328
    Abstract: A method of producing a cured coating is described comprising the steps of:(A) applying a coating composition on a substrate, wherein the coating composition is a curable coating composition comprising:(1) a polymer comprising functional groups that are reactive with methylol and/or methylalkoxy substituents on the amino nitrogens of an aminoplast curing agent, and(2) an aminoplast curing agent that includes, as substituents on the amino nitrogens:(a) a plurality of methylol and/or methylalkoxy substituents, and(b) one or more substituents that are either nonreactive with the functional groups on the polymer or are reactive with the functional groups at a higher temperature than the temperature at which the methylol and/or methylalkoxy substituents are reactive with the functional groups, and(B) curing the coating at a cure temperature sufficient to react the functional groups on the polymer with the methylol and/or methylalkoxy substituents, but below the temperature for reaction, if any, between the functio
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: April 5, 1994
    Assignee: BASF Corporation
    Inventor: John W. Rehfuss
  • Patent number: 5232990
    Abstract: Derivatives of melamine are disclosed having a carboxylic acid substituent on an amine nitrogen appended to the triazine ring. The compounds can be used to cross-link polymers having epoxy groups thereon.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: August 3, 1993
    Assignee: BASF Corporation
    Inventor: John W. Rehfuss
  • Patent number: 4524173
    Abstract: An aqueous coating composition based on a highly stable emulsion of polymerized monomers curable in the presence of a strong acid catalyst at low temperatures and therefore usable on thermoplastic substrates. The emulsion includes non-functional monomers whose combined glass transition temperature is such as to give desired hardness and flexibility required of highly demanding product applications. Water miscibility and extended period stability of the emulsion is maintained in the presence of the strong acid catalyst by use of disclosed surfactant agents which are alkoxylated and/or etherified as needed to impart these characteristics. A high degree of solvent resistance is achieved by addition of a hydroxyl functionality to the emulsion for reaction with the crosslinking agent in the presence of the acid catalyst. The emulsion suitable for the coating composition is also set forth.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: June 18, 1985
    Assignee: Reliance Universal, Inc.
    Inventors: John W. Rehfuss, Louis S. Hazelwood, Martin B. Price
  • Patent number: 4521489
    Abstract: A low temperature cure coating system exhibiting high performance characteristics, particularly solvent resistance and impact resistance, which is capable of being applied to either metal or plastic substrates. Dissimilar topcoat and basecoat compositions are employed, the topcoat being an aqueous polymeric dispersion, acid catalyzable for curing at temperatures of 150.degree. F. and below while the basecoat is selected for compatibility with the topcoat and the substrate, either the metal or plastic, to give proper adhesion, flexibility, film integrity and lack of interference with topcoat performance.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: June 4, 1985
    Assignee: Reliance Universal, Inc.
    Inventors: John W. Rehfuss, Louis S. Hazelwood, Martin B. Price, Robert W. Zilke, Jr.