Patents by Inventor Michael T. Wellman

Michael T. Wellman 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: 11613604
    Abstract: Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: March 28, 2023
    Assignee: Covestro LLC
    Inventors: Peter K. Smith, Michael T. Wellman
  • Publication number: 20220411564
    Abstract: Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 29, 2022
    Inventors: Peter K. Smith, Michael T. Wellman
  • Patent number: 10851291
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: December 1, 2020
    Assignee: Covestro LLC
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Publication number: 20200181483
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 11, 2020
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Patent number: 10647911
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 12, 2020
    Assignee: Covestro LLC
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Publication number: 20190330521
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 31, 2019
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Patent number: 10385261
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 20, 2019
    Assignee: COVESTRO LLC
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Publication number: 20190062622
    Abstract: Disclosed are coated particles. The coated particles include substrate particles and a coating disposed over at least a portion of the substrate particles. The coating includes a condensation reaction product of a reaction mixture that includes a liquid isocyanate-functional component and an isocyanate-reactive composition. Also disclosed are methods for making such particles and methods for using such particles as proppants in hydraulic fracturing.
    Type: Application
    Filed: August 22, 2017
    Publication date: February 28, 2019
    Inventors: Stephen J. Harasin, Kenneth R. Riddle, Michael T. Wellman
  • Patent number: 9683334
    Abstract: Disclosed are free-flowing particles. These free-flowing particles include: (a) a rubber particle, and (b) a coating deposited over at least a portion of the rubber particle, wherein the coating includes: (1) a polyurethane-urea resin that is a reaction product of a reaction mixture comprising: (i) a polyol having a number average molecular weight of 1800 to 12,000; (ii) an aromatic diamine; (iii) a polyisocyanate; and (iv) a catalyst for the reaction between hydroxyl groups and isocyanate groups; and (2) a solid particle anti-clumping agent. Also disclosed are methods of making and using such free-flowing particles and synthetic turf structures that include an infill of such free-flowing particles.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: June 20, 2017
    Assignee: Covestro LLC
    Inventors: Michael S. Robinson, Stephen J. Harasin, Michael T. Wellman
  • Publication number: 20160333535
    Abstract: Disclosed are free-flowing particles. These free-flowing particles include: (a) a rubber particle, and (b) a coating deposited over at least a portion of the rubber particle, wherein the coating includes: (1) a polyurethane-urea resin that is a reaction product of a reaction mixture comprising: (i) a polyol having a number average molecular weight of 1800 to 12,000; (ii) an aromatic diamine; (iii) a polyisocyanate; and (iv) a catalyst for the reaction between hydroxyl groups and isocyanate groups; and (2) a solid particle anti-clumping agent. Also disclosed are methods of making and using such free-flowing particles and synthetic turf structures that include an infill of such free-flowing particles.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 17, 2016
    Inventors: Michael S. Robinson, Stephen J. Harasin, Michael T. Wellman
  • Patent number: 8124665
    Abstract: This invention relates to fire-resistant, flexible, molded, medium density polyurethane foams. These foams typically have a density of from 10 to 30 pcf. The foams are the reaction product of a) at least one polyester polyol, b) at least one highly branched polyether polyol, c) at least one chain extender, d) a polymethylene poly(phenyl isocyanate), an isocyanate group containing prepolymer based on a polymethylene poly(phenyl isocyanate), or mixtures thereof, e) a solid flame retardant and f) water. This invention also relates to a process for preparing these polyurethane foams in open molds.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: February 28, 2012
    Assignee: Bayer MaterialScience LLC
    Inventors: James W. Rosthauser, Theodore S. Frick, Michael T. Wellman
  • Publication number: 20100056659
    Abstract: This invention relates to fire-resistant, flexible, molded, medium density polyurethane foams. These foams typically have a density of from 10 to 30 pcf. The foams are the reaction product of a) at least one polyester polyol, b) at least one highly branched polyether polyol, c) at least one chain extender, d) a polymethylene poly(phenyl isocyanate), an isocyanate group containing prepolymer based on a polymethylene poly(phenyl isocyanate), or mixtures thereof, e) a solid flame retardant and f) water. This invention also relates to a process for preparing these polyurethane foams in open molds.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Inventors: James W. Rosthauser, Theodore S. Frick, Michael T. Wellman
  • Publication number: 20090292036
    Abstract: This invention relates to stable liquid, trimer and allophanate-modified isocyanates, a process for the production of these isocyanates, foams prepared from these isocyanates and a process for the production of these foams.
    Type: Application
    Filed: July 27, 2009
    Publication date: November 26, 2009
    Applicant: Bayer MaterialScience LLC
    Inventors: James Garrett, Richard R. Roesler, Jan L. Clatty, Rick V. Starcher, John R. Sebroski, Jason W. Miller, Micheal A. Blaskiewicz, Michael A. Masciantonio, Michael T. Wellman
  • Patent number: 7601762
    Abstract: The present invention provides a rigid polyurethane foam comprising the reaction product, at an isocyanate index of from about 90 to about 400, of a polyisocyanate and a polyol component comprising, about 20 wt. % to about 80 wt. %, based on the weight of the polyol component, of a double metal cyanide (DMC)-catalyzed polyether polyol having a number average molecular weight of greater than about 1,000 Daltons (Da), about 80 wt. % to about 20 wt. %, based on the weight of the polyol component, of a sucrose-based polyol having a functionality of from about 2.5 to about 6 and a number average molecular weight of from about 350 Da to less than about 1,000 Da, and about 0 wt. % to about 40 wt. %, based on the weight of the polyol component, of a low molecular weight organic compound having a number average molecular weight of less than about 600 Da in the presence of water, polyvinylchloride (PVC) particles having a diameter of from about 0.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: October 13, 2009
    Assignee: Bayer MaterialScience LLC
    Inventors: Jan L. Clatty, Michael T. Wellman, Michael A. Masciantonio
  • Patent number: 7601761
    Abstract: The present invention provides a rigid polyurethane foam made from the reaction product, at an isocyanate index of from about 90 to about 400, of a polyisocyanate, and a polyol component containing about 20 to about 80 wt. %, based on the weight of the polyol component, of a double metal cyanide (DMC)-catalyzed polyether polyol having a number average molecular weight of greater than about 1000 Daltons (Da), about 80 to about 20 wt. %, based on the weight of the polyol component, of a sucrose-based polyol having a functionality of from about 2.5 to about 6 and a molecular weight of from about 350 to less than about 1,000, and about 0 to about 40 wt. %, based on the weight of the polyol component, of a low molecular weight organic compound having a number average molecular weight of less than about 600 Da, in the presence of water, polyvinylchloride (PVC) particles having a diameter of from about 0.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: October 13, 2009
    Assignee: Bayer MaterialScience LLC
    Inventors: Jan L. Clatty, Timothy R. Whelan, Susanne Whelan, legal representative, Michael T. Wellman, John W. Liddle, Marie W. Urick
  • Publication number: 20080227878
    Abstract: This invention relates to stable liquid, trimer and allophanate-modified isocyanates, a process for the production of these isocyanates, foams prepared from these isocyanates and a process for the production of these foams.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 18, 2008
    Inventors: James Garrett, Richard R. Roesler, Bryan D. Kaushiva, Jan L. Clatty, Rick V. Starcher, John R. Sebroski, Jason W. Miller, Michael A. Blaszkiewicz, Michael A. Masciantonio, Michael T. Wellman
  • Publication number: 20080207784
    Abstract: The present invention provides a rigid polyurethane foam comprising the reaction product, at an isocyanate index of from about 90 to about 400, of a polyisocyanate and a polyol component comprising, about 20 wt. % to about 80 wt. %, based on the weight of the polyol component, of a double metal cyamide (DMC)-catalyzed polyether polyol having a number average molecular weight of greater than about 1,000 Daltons (Da), about 80 wt. % to about 20 wt. %, based on the weight of the polyol component, of a sucrose-based polyol having a functionality of from about 2.5 to about 6 and a number average molecular weight of from about 350 Da to less than about 1,000 Da, and about 0 wt. % to about 40 wt. %, based on the weight of the polyol component, of a low molecular weight organic compound having a number average molecular weight of less than about 600 Da in the presence of water, polyvinylchloride (PVC) particles having a diameter of from about 0.
    Type: Application
    Filed: July 27, 2007
    Publication date: August 28, 2008
    Inventors: Jan L. Clatty, Michael T. Wellman, Michael A. Masciantonio
  • Publication number: 20080207787
    Abstract: The present invention provides a rigid polyurethane foam made from the reaction product, at an isocyanate index of from about 90 to about 400, of a polyisocyanate, and a polyol component containing about 20 to about 80 wt. %, based on the weight of the polyol component, of a double metal cyanide (DMC)-catalyzed polyether polyol having a number average molecular weight of greater than about 1000 Daltons (Da), about 80 to about 20 wt. %, based on the weight of the polyol component, of a sucrose-based polyol having a functionality of from about 2.5 to about 6 and a molecular weight of from about 350 to less than about 1,000, and about 0 to about 40 wt. %, based on the weight of the polyol component, of a low molecular weight organic compound having a number average molecular weight of less than about 600 Da, in the presence of water, polyvinylchloride (PVC) particles having a diameter of from about 0.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 28, 2008
    Inventors: Jan L. Clatty, Timothy R. Whelan, Michael T. Wellman, John W. Liddle, Marie W. Urick, Susanne Whelan
  • Patent number: 6448364
    Abstract: This invention relates to a process for the production of a polyurethane elastomer by reacting a reaction mixture comprising (A) an isocyanate-reactive component having a molecular weight of 400 to 12,000, a functionality of about 2 to about 8 and being capped with 13 to 21% by weight of ethylene oxide, wherein the isocyanate-reactive groups are hydroxyl groups, amine groups or mixtures thereof; (B) an isocyanate-reactive component comprising (1) an isocyanate-reactive component containing at least two hydroxyl groups and having a molecular weight of from 62 to 399, and (2) an isocyanate-reactive component selected from the group consisting of (a) an isocyanate-reactive group containing tertiary amine polyether corresponding to a specific formula, (b) at least one organic amine compound containing at least two amine groups which are reactive with isocyanate groups; (C) potassium halide; (D) an internal mold release agent; (E) at least one catalyst, and (F) a polyisocyanate component.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 10, 2002
    Assignee: Bayer Corporation
    Inventors: Jan L. R. Clatty, Michael T. Wellman, Stephen J. Harasin
  • Patent number: 5401824
    Abstract: This invention relates to stabilizing isocyanate-reactive compositions containing flame retardants by the use of certain tertiary amines or ammonium compounds, in which said stabilized compositions are prepared by mixing(a) at least one isocyanate-reactive compound having a molecular weight of 400 to 10,000 and a functionality of 2 to 7;(b) at least one isocyanate-reactive compound having a molecular weight of less than 399 and a functionality of 2 to 6;(c) at least one (i) isocyanate-reactive tertiary amine polyether, (ii) fatty amido-amine, and/or (iii) ammonium salt derivative of a fatty amido-amine;(d) a flame retardant;(e) a catalyst; and(f) optional additives.This invention also relates to urethane-based products prepared by reaction of organic polyisocyanates with such compositions.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: March 28, 1995
    Assignee: Miles Inc.
    Inventors: Jan L. R. Clatty, Michael T. Wellman, Sanjeev Madan