Patents Assigned to Covestro LLC
  • Process for the continual inline filtration of a process stream
    Patent number: 10751649
    Abstract: The present invention provides a new type of filtration system. Traditional designs required that personnel open the system to clean/change strainers while a process was in operation. This invention provides a straining system that allows process stream to be filtered in a manner completely internal to the process. The system includes dual strainers with a nitrogen purging system and solvent flush system. A creatively designed “catch” area is installed internal to the process to collect all solids that are flushed from the strainer system. The system remains completely closed for the duration of each production campaign, thus eliminating the safety hazard and labor requirement associated with opening a process system.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 25, 2020
    Assignees: Covestro LLC, Covestro Polymers (China) Co., Ltd.
    Inventors: Amber Rogers Hicks, William A. Hassell, Kevin M. Kelleher, Kent Swart, Wingwah Lau, Bin Tang, Norbert Steindel
  • Rigid polyurethane foams suitable for use as panel insulation
    Patent number: 10752725
    Abstract: Disclosed are polyurethane-foam forming compositions, rigid polyurethane foams and methods for their production, as well as to composite articles comprising such foams sandwiched between facer substrates, including use of such composite elements for floor insulating elements for refrigerated tractor trailers. The rigid polyurethane foams are produced from an isocyanate-reactive component comprising: (1) a polyol blend; (2) a halogenated hydroolefin; (3) a surfactant; (4) water; and (5) a tertiary amine catalyst composition.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 25, 2020
    Assignee: Covestro LLC
    Inventors: Shawn G. Rider, David F. Sounik
  • Aqueous compositions for treating seeds, seeds treated therewith, and methods for treating seeds
    Patent number: 10750750
    Abstract: Disclosed are seed treatment compositions that include: (a) an aqueous polyurethane dispersion; and (b) an insecticide, a fungicide, a nematicide, and/or other pesticides. Also disclosed are seeds treated with such a treatment compositions and methods for treating a seed using such treatment composition.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 25, 2020
    Assignees: Covestro LLC, Covestry Deutschland AG, Bayer CropScience LP
    Inventors: Alan Ekin, James A. Thompson-Colon, Timothy Pike, Scott Grace, Jinqi Li, Sebastian Doerr, Ronald Reichert, William S. Hanson
  • Product-to-product process for preparation of low viscosity polyoxyalkylene polyols
    Patent number: 10738155
    Abstract: This invention relates to process for preparing low viscosity polyoxyalkylene polyols (P) that have a narrow molecular weight distribution. This process comprises reacting a H-functional starter substance (Si), a H-functional starter substance (Sx) and a H-functional starter substance (Sc) with one or more alkylene oxides in the presence of a double metal cyanide catalyst. The resultant polyoxyalkylene polyols (P) have a functionality of 2 to 8 and a hydroxyl number of greater than 35 to 115 mg KOH/g polyol.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 11, 2020
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Jack R. Reese, Edward P. Browne, Yue Yang, Jose F. Pazos
  • Basecoat acid neutralization through inorganic salts
    Patent number: 10731051
    Abstract: The present invention provides a system comprising an allophanate composition comprising a neutralized polyol, a polyuretdione resin, a tertiary amine catalyst, an additive package, and a reducer; and a neutralized basecoat comprising an inorganic salt and a pigment. The present invention further provides a method of making an allophanate system comprising combining a neutralized polyol with a polyuretdione resin in the presence of a tertiary amine catalyst, an additive package, and a reducer to produce an allophanate composition, and contacting the allophanate composition with a neutralized basecoat comprising an inorganic salt and a pigment. The system may be used to make coatings, adhesives, castings, composites, and sealants in which clear-coating on neutralized pigmented basecoats is much improved in comparison to coating on non-neutralized basecoats.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 4, 2020
    Assignee: Covestro LLC
    Inventors: Alan Ekin, Alan D. Bushmire
  • Floor assemblies, methods for their manufacture, and the use of such assemblies in a building
    Patent number: 10731341
    Abstract: Prefabricated insulated floor assemblies, methods for manufacturing such assemblies, and use of these floor assemblies in a building are described. The assemblies include a sheathing panel, I-joists, and rigid foam insulation boards positioned in a cavity formed by the sheathing panel and the I-joists.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 4, 2020
    Assignee: Covestro LLC
    Inventors: James L. Lambach, David M. Baily
  • Product-to-product process for preparation of low viscosity polyoxyalkylene polyols
    Patent number: 10723829
    Abstract: This invention relates to a process for preparing low viscosity polyoxyalkylene polyols (P) that have a narrow molecular weight distribution. This process comprises reacting a H-functional starter substance (Si), a H-functional starter substance (Sx) and a H-functional starter substance (Sc) with one or more alkylene oxides in the presence of a double metal cyanide catalyst. The resultant polyoxyalkylene polyols (P) have a functionality of 2 to 8 and a hydroxyl number of 5 to 35 mg KOH/g polyol.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 28, 2020
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Jack R. Reese, Edward P. Browne, Yue Yang, Jose F. Pazos
  • Product-to-product process for preparation of low viscosity polyoxyalkylene polyether polyols
    Patent number: 10723830
    Abstract: This invention relates to a semi-batch process for preparing low viscosity polyoxyalkylene polyether polyols (P) that have a narrow molecular weight distribution. This process comprises reacting a H-functional starter substance (Si), a H-functional starter substance (Sx) and a H-functional starter substance (Sc) with one or more alkylene oxides in the presence of a double metal cyanide (DMC) catalyst. The resultant polyoxyalkylene polyols (P) have a functionality of 2 to 8 and a hydroxyl number of 5 to 35 mg KOH/g polyol. In addition, the polyoxyalkylation can be completed with a low continuous addition of starter (CAOS) cap.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 28, 2020
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Jack R. Reese, Edward P. Browne, Yue Yang, Jose F. Pazos
  • Squarate compositions
    Patent number: 10703853
    Abstract: A cross-linker composition, a resin composition, a curable composition, a method of making thereof, and articles produced therefrom are provided. The cross-linker composition can be formed from by contacting a diethanolamine with a dialkylsquarate to form the cross-linker composition. The resin composition can be formed by contacting the cross-linker composition with an isocyanate. The curable composition can be formed by contacting the resin composition with an amine.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 7, 2020
    Assignees: COVESTRO DEUTSCHLAND AG, COVESTRO LLC
    Inventors: Igor Pochorovski, Alan Ekin
  • Curing for polyallophanate compositions through undercoat acid neutralization
    Patent number: 10696775
    Abstract: The present invention provides a system comprising an allophanate composition comprising a neutralized polyol, a polyuretdione resin, a tertiary amine catalyst, an additive package, and a reducer and a neutralized basecoat comprising an acid scavenger and a pigment. The resulting allophanate system may be used to make coatings, adhesives, castings, composites, and sealants in which clear-coating on neutralized pigmented basecoats is much improved in comparison to non-neutralized basecoats.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 30, 2020
    Assignees: COVESTRO LLC, COVESTRO DEUTSCHLAND AG
    Inventors: Alan Ekin, Florian Johannes Stempfle
  • Method for making thermoplastic aliphatic urethane/urea elastomers and molding compositions
    Patent number: 10683417
    Abstract: Methods for making compositions for making thermoplastic aliphatic urethane/urea elastomers, which are in turn used to make molding compositions used in forming molded articles, particularly, shells for automotive applications. The molding compositions comprise an aliphatic thermoplastic urethane/urea elastomer and a polyolefin-based modifier. These compositions may be used to form a powder, pellets, microspheres or minibeads which may then be cast to form air bag door and instrument panel cover skins which may meet automotive deployment and weathering requirements.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 16, 2020
    Assignee: Covestro LLC
    Inventors: William M. Humphrey, Paul Drago, Terry L. Anderson
  • Polyurethane and polyisocyanurate rigid foams suitable for roofing insulation
    Patent number: 10676582
    Abstract: Polyurethane foams having a NFPA 101 Class B rating (ASTM E-84) which pass the FM 4450 Calorimeter Test are produced by reacting: (a) an organic polyisocyanate, (b) at least one polyether polyol or polyester polyol with a nominal hydroxyl functionality of at least 2.0, (c) a blowing agent composition and (d) at least one halogen-free flame retardant. The blowing agent composition includes: (1) no more than 10% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an LEL less than 2% by volume in air, and/or (2) a hydrocarbon having an LEL greater than 2% by volume in air, and (3) up to 1% by weight, based on total weight of foam-forming composition, of water.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 9, 2020
    Assignee: Covestro LLC
    Inventors: George G. Combs, Susan C. Pigott
  • Method to increase the resistance of double metal cyanide catalysts to deactivation
    Patent number: 10669368
    Abstract: This invention relates to a semi-batch process for the production of polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have hydroxyl (OH) numbers of from 112 to 400. This process comprises establishing oxyalkylation condition in a reactor in the presence of a DMC catalyst, continuously introducing alkylene oxide and a suitable starter into the reactor, and recovering an oxyalkyated polyether polyol. The oxyalkylation initially occurs at a temperature that is sufficiently high enough to avoid or prevent deactivation of the DMC catalyst, or for from 2% to 50% of the total oxide feed amount, and the oxyalkylation is then continued at a lower temperature.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 2, 2020
    Assignee: Covestro LLC
    Inventors: Edward P. Browne, Jose Pazos
  • Methods for treating seeds with an aqueous composition and seeds treated therewith
    Patent number: 10653135
    Abstract: Disclosed are methods for treating seeds with a seed treatment composition that includes: (A) an aqueous polyurethane dispersion; and (B) an insecticide, a fungicide, a nematicide, and/or other pesticides. Also disclosed are seeds treated with such a treatment compositions and methods for treating a seed using such treatment composition.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: May 19, 2020
    Assignees: Covestro LLC, Bayer CropScience LP
    Inventors: Alan Ekin, James A. Thompson-Colon, Timothy Pike, Scott Grace, Jinqi Li, Ronald Reichert, William S. Hanson
  • Aqueous compositions for treating seeds, seeds treated therewith, and methods for treating seeds
    Patent number: 10653136
    Abstract: Disclosed are seed treatment compositions that include: (A) an aqueous polyurethane dispersion; and (B) an insecticide, a fungicide, a nematicide, and/or other pesticides. Also disclosed are seeds treated with such a treatment compositions and methods for treating a seed using such treatment composition.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: May 19, 2020
    Assignees: Covestro LLC, Bayer CropScience LLC
    Inventors: Alan Ekin, James A. Thompson-Colon, Timothy Pike, Scott Grace, Jinqi Li, Ronald Reichert, William S. Hanson
  • Coated particles, methods for their manufacture and for their use as proppants
    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
  • Rigid polyurethane foams suitable for use as panel insulation
    Patent number: 10640600
    Abstract: Disclosed are polyurethane-foam forming compositions, rigid polyurethane foams and methods for their production, as well as to composite articles comprising such foams sandwiched between facer substrates, including use of such composite elements for side-wall and/or roof insulating elements for refrigerated tractor trailers. The rigid polyurethane foams are produced from an isocyanate-reactive component comprising: (1) a polyol blend; (2) a halogenated hydroolefin; (3) a surfactant; (4) water; and (5) a tertiary amine catalyst composition.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 5, 2020
    Assignee: Covestro LLC
    Inventors: Shawn G. Rider, David F. Sounik
  • Coated particles and methods for their manufacture and use
    Patent number: 10640702
    Abstract: Disclosed are coated particles, such as proppants, processes for their preparation and methods for using such particles, such as in a hydraulic fracturing process. The coated particles include a coating that includes a crystalline or semicrystalline polyester/polyurethane having a decrystallization temperature of at least 35° C.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 5, 2020
    Assignee: Covestro LLC
    Inventors: Kevan Hudson, Jeffrey F. Dormish, Michael K. Jeffries
  • Buildings with continuous insulation bridging a roof assembly and a floor assembly
    Patent number: 10640973
    Abstract: Insulated buildings are described. The building include: (a) a sloped roof that is a prefabricated insulated roof assembly; (b) a generally horizontally arranged flooring assembly having an end that is arranged over a wall structure and under the sloped roof assembly; (c) a sloped member that is arranged over the end of the flooring assembly that is over the wall structure, and (d) a rigid foam insulation member arranged in the cavity of the roof assembly so as to bridge a lower surface of a rigid foam insulation board in the roof assembly to the sloped member.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: May 5, 2020
    Assignee: Covestro LLC
    Inventors: James L. Lambach, David M. Baily
  • Water processes for producing polyether polyols from solid polyhydroxyl compounds
    Patent number: 10633406
    Abstract: Batch “water processes” for producing high functionality polyether polyols from polyhydroxyl compounds that are solid at ambient conditions, such as is the case with sucrose, are disclosed. The disclosed processes avoid use of an intermediate dewatering step.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: April 28, 2020
    Assignee: Covestro LLC
    Inventors: Anthony R. Loveday, Daniel R. Wagner