Patents by Inventor Thaddeus J. Lepkowski

Thaddeus J. Lepkowski 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).

  • Asymmetric polyisocyanate monomers in urethane polymers and oligomers to reduce crystallinity
    Patent number: 7297749
    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: October 14, 2004
    Date of Patent: November 20, 2007
    Assignee: BASF Corporation
    Inventors: Craig S. Schang, Walter H. Ohrbom, Joanne Casale, Thaddeus J. Lepkowski
  • Urethane polymers that reduce the effect of polylactone linkages
    Patent number: 7160973
    Abstract: A composition comprising a reaction product of a diisocyanate, a chain extension agent having at least difunctional reactivity with an isocyanate, and a material comprising a blend 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 with an extending agent, wherein at least one of i) the isocyanate groups of the diisocyanate have a different reactivity in relation to each other, and ii) at least two of the groups with reactivity with an isocyanate on the chain extension agent have a different reactivity in relation to each other.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 9, 2007
    Assignee: BASF Corporation
    Inventors: Walter H. Ohrbom, Craig S. Schang, Joanne Casale, Thaddeus J. Lepkowski
  • Method for creating microsphere polymers and particles
    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
  • Asymmetric diisocyanate monomers in urethane polymers and oligomers to reduce crystallinity
    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
  • Method for creating microsphere polymers and particles
    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
  • Asymmetric diisocyanate monomers in urethane polymers and oligomers to reduce crystallinity
    Publication number: 20030125501
    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: Application
    Filed: December 12, 2002
    Publication date: July 3, 2003
    Applicant: BASF CORPORATION
    Inventors: Walter H. Ohrbom, Craig S. Schang, Joanne Casale, Thaddeus J. Lepkowski
  • Urethane polymers that reduce the effect of polylactone linkages
    Publication number: 20030114628
    Abstract: A composition comprising a reaction product of a diisocyanate, a chain extension agent having at least difunctional reactivity with an isocyanate, and a material comprising a blend 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 with an extending agent, wherein at least one of i) the isocyanate groups of the diisocyanate have a different reactivity in relation to each other, and ii) at least two of the groups with reactivity with an isocyanate on the chain extension agent have a different reactivity in relation to each other.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 19, 2003
    Inventors: Walter H. Ohrbom, Craig S. Schang, Joanne Casale, Thaddeus J. Lepkowski