Patents by Inventor Michael Praw

Michael Praw 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: 11267929
    Abstract: 100% solids polyurethanes having improved physical properties in terms of Shore hardness, tear strength, elongation at break and/or tensile strength are realized through the introduction of 100% solids hydroxyl-functional acrylics in combination with the hydroxyl-functional polyether and 100% solids isocyanate-functional compounds. When an aromatic isocyanate is used, the isocyanate-reactive component includes from 5 to 70% by weight of a hydroxyl-functional polyether having a weight average molecular weight ranging from 180 to 6,500 g/mol, and 30 to 95% by weight of a hydroxyl-functional acrylic. When an aliphatic isocyanate is used, the isocyanate-reactive component includes from 40 to 70% by weight of a hydroxyl-functional polyether having a weight average molecular weight ranging from 180 to 6,500 g/mol, and 30 to 60% by weight of a hydroxyl-functional acrylic.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: March 8, 2022
    Assignee: BASF SE
    Inventors: Michael Praw, Micheal Colin May
  • Publication number: 20220056272
    Abstract: An asphalt composition comprising 0.1 to 10.0 wt.-% monomeric MDI based on the total weight of the composition.
    Type: Application
    Filed: December 9, 2019
    Publication date: February 24, 2022
    Inventors: Olivier FLEISCHEL, Michael PRAW, Waldemar SCHATZ, Bernie Lewis MALONSON, Iran OTERO MARTINEZ, Dag WIEBELHAUS
  • Patent number: 11059749
    Abstract: An asphalt composition comprising 0.1 to 10.0 wt.-% based on the total weight of the composition of a thermosetting reactive compound selected from the group consisting of polymeric MDI, epoxy resins and melamine formaldehyde resins, wherein at least 18% by weight based on the total weight of the composition are particles with a sedimentation coefficient above 5000 Sved in a white spirit solvent.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: July 13, 2021
    Assignee: BASF SE
    Inventors: Olivier Fleischel, Iran Otero Martinez, Waldemar Schatz, Dag Wiebelhaus, Berend Eling, Dietrich Scherzer, Jens Ferbitz, Michael Praw, Bernie Lewis Malonson, Ryan E. Taylor
  • Publication number: 20210198491
    Abstract: An asphalt composition comprising 0.1 to 8 wt.-% based on the total weight of the composition of an Isocyanate as thermosetting reactive compound and 0.1 to 8 wt.-% based on the total weight of the composition of a polymer selected from the group consisting of styrene/butadiene/styrene copolymer (SBS), styrene butadiene rubber (SBR), neoprene, polyethylene, low density polyethylene, oxidized high density polyethylene, polypropylene, oxidized high density polypropylene, maleated polypropylene, ethylene-butyl-acrylate-glycidyl-methacrylate terpolymer, ethyl vinyl acetate (EVA) and polyphosphoric acid (FRA).
    Type: Application
    Filed: August 9, 2019
    Publication date: July 1, 2021
    Inventors: Michael PRAW, Waldemar SCHATZ, Arlis A. KADRMAS, William J. KIRK, James T. ANDREWS, Iran OTERO MARTINEZ, Bernie Lewis MALONSON, Olivier FLEISCHEL
  • Publication number: 20200308335
    Abstract: 100% solids polyurethanes having improved physical properties in terms of Shore hardness, tear strength, elongation at break and/or tensile strength are realized through the introduction of 100% solids hydroxyl-functional acrylics in combination with the hydroxyl-functional polyether and 100% solids isocyanate-functional compounds. When an aromatic isocyanate is used, the isocyanate-reactive component includes from 5 to 70% by weight of a hydroxyl-functional polyether having a weight average molecular weight ranging from 180 to 6,500 g/mol, and 30 to 95% by weight of a hydroxyl-functional acrylic. When an aliphatic isocyanate is used, the isocyanate-reactive component includes from 40 to 70% by weight of a hydroxyl-functional polyether having a weight average molecular weight ranging from 180 to 6,500 g/mol, and 30 to 60% by weight of a hydroxyl-functional acrylic.
    Type: Application
    Filed: January 12, 2018
    Publication date: October 1, 2020
    Inventors: Michael Praw, Micheal Colin May
  • Publication number: 20200199025
    Abstract: An asphalt composition comprising 0.1 to 10.0 wt.-% based on the total weight of the composition of a thermosetting reactive compound selected from the group consisting of polymeric MDI, epoxy resins and melamine formaldehyde resins, wherein at least 18% by weight based on the total weight of the composition are particles with a sedimentation coefficient above 5000 Sved in a white spirit solvent.
    Type: Application
    Filed: June 4, 2018
    Publication date: June 25, 2020
    Inventors: Olivier FLEISCHEL, Iran OTERO MARTINEZ, Waldemar SCHATZ, Dag WIEBELHAUS, Berend ELING, Dietrich SCHERZER, Jens FERBITZ, Michael PRAW, Bernie Lewis MALONSON, Ryan E. TAYLOR
  • Patent number: 10556841
    Abstract: Method of forming an encapsulated fertilizer that includes the step of providing a core particle. The core particle includes a fertilizer and has an outer surface. The method further includes the step of applying an isocyanate component directly to the outer surface of the core particle. The isocyanate component has isocyanate functional groups. The method further includes the step of reacting the isocyanate component with ambient moisture to form a layer disposed about the core particle to form the encapsulated fertilizer. The layer includes polyurea linkages and may further include polyurethane linkages.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: February 11, 2020
    Assignee: BASF SE
    Inventor: Michael Praw
  • Publication number: 20170036968
    Abstract: A method of forming an encapsulated fertilizer comprises the step of providing a core particle. The core particle comprises a fertilizer and has an outer surface. An example of the fertilizer is urea. The method further comprises the step of applying an isocyanate component directly to the outer surface of the core particle. The isocyanate component has isocyanate functional groups. An example of the isocyanate component is an isocyanate-terminated prepolymer. A specific example of the isocyanate-terminated prepolymer is one comprising the reaction product of a diphenylmethane diisocyanate (MDI) and a polyol. The method further comprises the step of reacting the isocyanate component with ambient moisture to form a layer disposed about the core particle to form the encapsulated fertilizer. The layer comprises polyurea linkages. The layer may further comprise polyurethane linkages. For example, the layer may be in the form of a polyurea/polyurethane layer when the isocyanate-terminated prepolymer is utilized.
    Type: Application
    Filed: April 27, 2015
    Publication date: February 9, 2017
    Applicant: BASF SE
    Inventor: Michael Praw
  • Patent number: 9538867
    Abstract: A composite body is provided that includes a rigid polyurethane foam shell and an elastomeric polyurethane layer disposed over the rigid polyurethane foam shell. The rigid polyurethane foam shell defines a cavity within the composite body. The rigid polyurethane foam shell has a closed cell content of at least 70% and comprises the reaction product of a first isocyanate component and a first isocyanate-reactive component in the presence of a blowing agent. The elastomeric polyurethane layer is disposed over the polyurethane foam shell. The elastomeric polyurethane layer comprises the reaction product of a second isocyanate component and a second isocyanate-reactive component. A method of forming the composite body includes the step of molding the rigid polyurethane foam shell, demolding the rigid polyurethane foam shell from the mold, and applying an elastomeric polyurethane composition upon the rigid polyurethane foam shell after demolding to form the elastomeric polyurethane layer.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 10, 2017
    Assignee: BASF SE
    Inventors: David D. Peters, Michael Praw, Richard Varner