Patents by Inventor Myron W. Shaffer

Myron W. Shaffer 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: 20210230365
    Abstract: A polyaspartate composition can include a reaction product of a diamine and an amine-reactive component. The amine reactive-component can include a diester and an acrylate combined at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7. The diamine and the amine-reactive component can be combined at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Inventors: Matthew Stewart, Joseph Pierce, Michael K. Jeffries, Wendy S. Gustavich, Charles A. Gambino, Andrew Bradburn, Robert A. Wade, Myron W. Shaffer
  • Publication number: 20210102064
    Abstract: A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 8, 2021
    Inventors: Matthew Stewart, Joseph Pierce, Wendy S. Gustavich, Michael Jeffries, Robert A. Wade, Myron W. Shaffer
  • Patent number: 9896598
    Abstract: A process of directly coating a metal substrate and curing the coating using radiation sources such as UV radiation having a wavelength of 200 nm and above. Furthermore, compositions of the invention can be used as a tie-coat for coatings that do not bond well directly to various metal substrates.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: February 20, 2018
    Inventors: Ramesh Subramanian, Kurt E. Best, Charles A. Gambino, Christine A. Mebane, Michael K. Jeffries, Myron W. Shaffer, Michael J. Dvorchak
  • Patent number: 9080074
    Abstract: Composition and process for low temperature curing of polyuretdione-polyol compositions in which the polyuretdione is prepared from a polyisocyanate with isocyanate groups and a polyol containing primary hydroxyl groups. The catalyst for the composition and process is an amine catalyst containing the group —N?C—N—, being aprotic, having a pKa greater than 20 and upon addition to the liquid coating composition causing a phase-change of the coating composition from liquid to solid at 25° C. and 1 atm. within one week.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: July 14, 2015
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG, PPG, Inc.
    Inventors: Myron W. Shaffer, Abdullah Ekin, Carol L. Kinney, Dorota Greszta-Franz, Jonathan T. Martz, Jun Deng, Deborah E. Hayes, Stephen J. Thomas
  • Publication number: 20140275320
    Abstract: Methods of producing an elastomer are disclosed that include (I) applying a composition that includes a urethane (meth)acrylate to a substrate at a thickness of at least 10 mils; (II) exposing the composition ultraviolet radiation to produce a cured film; and (III) removing the film from the substrate. Related compositions are also disclosed.
    Type: Application
    Filed: August 28, 2013
    Publication date: September 18, 2014
    Applicant: Allnex IP S.à.r.I.
    Inventors: Michael K. Jefferies, Myron W. Shaffer, Charles A. Gambino, Christine M. Mebane, Michael Dvorchak
  • Publication number: 20130302530
    Abstract: A process of directly coating a metal substrate and curing the coating using radiation sources such as UV radiation having a wavelength of 200 nm and above. Furthermore, compositions of the invention can be used as a tie-coat for coatings that do not bond well directly to various metal substrates.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 14, 2013
    Inventors: Ramesh Subramanian, Kurt E. Best, Charles A. Gambino, Christine A. Mebane, Michael K. Jeffries, Myron W. Shaffer, Michael J. Dvorchak
  • Patent number: 8415471
    Abstract: This invention relates to flexible cycloaliphatic diisocyanate trimers and a process for the preparation of these. These flexible products are allophanate-modified, partially trimerized cycloaliphatic diisocyanates and are characterized by a low Tg. More specifically, the Tg of the resultant product ranges from about ?30° C. to about 40° C., after the excess monomer has been removed from the product.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: April 9, 2013
    Assignee: Baver MaterialScience LLC
    Inventors: Myron W. Shaffer, Michael K. Jeffries, David P. Zielinski
  • Patent number: 8178204
    Abstract: A coating composition is provided. The composition comprises as component I, a) a polyaspartic acid ester comprising the reaction product of one more diamines, one or more difunctional acrylate-containing compounds and one or more maleic/fumaric acid esters; b) at least one moisture scavenger; c) at least one deaerator; d) at least one plasticizer; and e) optionally additives; and as component II, one or more polyisocyanates. Methods of making and applying the composition to a substrate are also provided. The coating is particularly suitable for use as a gel coat.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: May 15, 2012
    Assignee: Bayer MaterialScience LLC
    Inventors: Myron W. Shaffer, John P. Forsythe, Leone Hermans-Blackburn, Amy S. Wylie, Aaron A. Lockhart, Emery Yuhas, Roy B. Clemens
  • Publication number: 20110229645
    Abstract: Composition and process for low temperature curing of polyuretdione-polyol compositions in which the polyuretdione is prepared from a polyisocyanate with isocyanate groups and a polyol containing primary hydroxyl groups. The catalyst for the composition and process is an amine catalyst containing the group —N?C—N—, being aprotic, having a pKa greater than 20 and upon addition to the liquid coating composition causing a phase-change of the coating composition from liquid to solid at 25° C. and 1 atm. within one week.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 22, 2011
    Applicants: Bayer MaterialScience LLC, Bayer MaterialScience AG, PPG Industries, Inc.
    Inventors: Myron W. Shaffer, Abdullah Ekin, Carol L. Kinney, Dorota Greszta-Franz, Jonathan T. Martz, Jun Deng, Deborah E. Hayes, Stephen J. Thomas
  • Patent number: 7737243
    Abstract: This invention relates to coating compositions and more particularly to highly productive coating compositions that quickly harden for sanding or buffing by incorporating therein a polyisocyanate adduct mixture into the coating composition as the crosslinking material. Such coatings are particularly useful for refinishing automobiles and trucks.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 15, 2010
    Assignees: E. I. du Pont de Nemours and Company
    Inventors: Jerome T. Adams, Robert John Barsotti, Laura Ann Lewin, Reinhard Halpaap, Dieter Mager, Myron W. Shaffer, James Lamonte Adams, James William O'Neil
  • Publication number: 20090226645
    Abstract: A coating composition is provided. The composition comprises as component I, a) a polyaspartic acid ester comprising the reaction product of one more diamines, one or more difunctional acrylate-containing compounds and one or more maleic/fumaric acid esters; b) at least one moisture scavenger; c) at least one deaerator; d) at least one plasticizer; and e) optionally additives; and as component II, one or more polyisocyanates. Methods of making and applying the composition to a substrate are also provided. The coating is particularly suitable for use as a gel coat.
    Type: Application
    Filed: June 2, 2008
    Publication date: September 10, 2009
    Inventors: Myron W. Shaffer, Jack Forsythe, Leone Hermans-Blackburn, Amy S. Wylie, Aaron A. Lockhart, Emery Yuhas, Roy B. Clemens
  • Publication number: 20090176907
    Abstract: A process of directly coating a metal substrate and curing the coating using radiation sources such as UV radiation having a wavelength of 200 nm and above. Furthermore, compositions of the invention can be used as a tie-coat for coatings that do not bond well directly to various metal substrates.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 9, 2009
    Inventors: Ramesh Subramanian, Kurt E. Best, Charles A. Gambino, Christine M. Mebane, Michael K. Jeffries, Myron W. Shaffer, Michael K. Dvorchak
  • Publication number: 20090143559
    Abstract: This invention relates to flexible cycloaliphatic diisocyanate trimers and a process for the preparation of these. These flexible products are allophanate-modified, partially trimerized cycloaliphatic diisocyanates and are characterized by a low Tg. More specifically, the Tg of the resultant product ranges from about ?30° C. to about 40° C., after the excess monomer has been removed from the product.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Inventors: Myron W. Shaffer, Michael K. Jeffries, David P. Zielinski
  • Patent number: 7371807
    Abstract: The present invention is directed to blocked biuret group-containing polyisocyanate compositions, wherein the blocking agent is of the formula: wherein R1, R2, R3 and R4 may be the same or different and represent a moiety selected from the group consisting of hydrogen, C1-C6-alkyl and C3-C6-cycloalkyl, R5 represents a moiety selected from the group consisting of C1-C10-alkyl and C3-C10-cycloalkyl, and B is a group according to one of the following structural formulas wherein each occurrence of R6, R7, and R8 may be the same or different and represent a moiety selected from the group consisting of C1-C6-alkyl and C3-C6-cycloalkyl and R9 is a moiety selected from the group consisting of hydrogen, C1-C6-alkyl and C3-C6-cycloalkyl.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: May 13, 2008
    Assignee: Bayer MaterialScience LLC
    Inventors: Lanny D. Venham, Kyli Martin, Richard R. Roesler, Myron W. Shaffer, Michael K. Jeffries
  • Patent number: 6974874
    Abstract: The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of a carbodiimide scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: December 13, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Lanny D. Venham, Myron W. Shaffer, Karsten Danielmeier, Karen M. Henderson
  • Publication number: 20040087762
    Abstract: The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of a carbodiimide scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Lanny D. Venham, Myron W. Shaffer, Karsten Danielmeier, Karen M. Henderson
  • Publication number: 20030109664
    Abstract: Biuret group-containing polyisocyanates are produced having an isocyanate functionality of at least 4 are prepared by reacting polyisocyanates having a functionality of at least 2.8 with water as the biuretizing agent. Most preferably water is used as the sole biuretizing agent. The preparation is useful as a curing agent in crosslinkable coating compositions. The coating composition can be used as an automotive clearcoat over a conventional pigmented basecoat, or as a basecoat or monocoat or even as a primer or sealer when a suitable amount of pigment is incorporated therein.
    Type: Application
    Filed: September 20, 2002
    Publication date: June 12, 2003
    Inventors: Jerome T. Adams, Robert J. Barsotti, Laura A. Lewin, Reinhard Halpaap, Dieter Mager, Myron W. Shaffer
  • Patent number: 6169140
    Abstract: The present invention relates to moisture-curable compositions containing a mixture of a) a polyisocyanate and b) a polyacrylate resin which has an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, based on the weight of the polyacrylate resin, and contains less than 0.2% by weight of hydroxy groups, based on the weight of the polyacrylate resin, wherein components a) and b) are present in amounts sufficient to provide an equivalent ratio of isocyanate groups to alkoxy groups, which are bound to Si, of 1.0:0.05 to 1.0:2.5. The present invention also relates to coatings, sealants and adhesives prepared from these compositions.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: January 2, 2001
    Assignee: Bayer Corporation
    Inventors: Richard R. Roesler, Myron W. Shaffer
  • Patent number: 6096823
    Abstract: The present invention relates to moisture-curable compounds whicha) have an isocyanate group content (calculated as NCO, MW 42) of 2 to 30% by weight and an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight,b) optionally contain repeating ethylene oxide units andc) have an equivalent ratio of isocyanate groups to alkoxy groups of 1.0:0.05 to 1.0:2.5,wherein the preceding percentages are based on the weight of the moisture-curable compounds and wherein the alkoxysilane groups are incorporated as the reaction products ofi) a polyisocyanate component having a minimum average functionality of 2.0 and containing at least 50% by weight of polyisocyanate adducts, provided that when the moisture-curable compounds contain ethylene oxide units, the polyisocyanate component has a minimum average functionality of 2.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: August 1, 2000
    Assignee: Bayer Corporation
    Inventor: Myron W. Shaffer
  • Patent number: 6057415
    Abstract: The present invention relates to compounds having an isocyanate group content (calculated as NCO, MW 42) of 0.2 to 20% by weight and an alkoxysilane group content (calculated as Si, MW 28) of 0.2 to 4.5% by weight, wherein the preceding percentages are the weight of the compounds, and containing sufficient chemically incorporated hydrophilic groups to form a stable dispersion in water, wherein the alkoxysilane groups are incorporated as the reaction product ofi) a polyisocyanate component having a minimum average functionality of 2.4 and containing at least 50% by weight of polyisocyanate adducts andii) compounds containing secondary amino groups and alkoxysilane groups.The present invention is also directed to the use of these compounds in admixture with isocyanate-reactive resins in aqueous, two-component coating, adhesive and sealant compositions.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: May 2, 2000
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Richard R. Roesler, Myron W. Shaffer, Poli Yu, Lutz Schmalstieg