Patents by Inventor Thomas Rathke

Thomas Rathke 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: 10323116
    Abstract: Polyurethane foams are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, an ionic liquid or a deep eutectic solvent, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and optionally a flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam can exhibit a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and in the instance where a flame retardant has been added in an appropriate amount, exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index and/or the smoke spread values.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 18, 2019
    Assignee: Imperial Sugar Company
    Inventors: Douglas Svenson, Jose Luna, Thomas Rathke
  • Patent number: 9725555
    Abstract: Polyurethane foams which are highly flame resistant are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and a flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam has a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index and the smoke spread values.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 8, 2017
    Assignee: Innovative Urethane, LLC
    Inventors: Joseph Mooney, Thomas Rathke, Charles Valentine, Douglas Svenson
  • Patent number: 9676896
    Abstract: Polyurethane foams which are highly flame resistant are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and a non-halogenated flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam has a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index, flash over resistance determination, and the smoke spread values.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 13, 2017
    Assignee: INNOVATIVE URETHANE, LLC
    Inventors: Joseph Mooney, Thomas Rathke, Jose Luna, Douglas Svenson
  • Publication number: 20140275305
    Abstract: Polyurethane foams are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, an ionic liquid or a deep eutectic solvent, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and optionally a flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam can exhibit a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and in the instance where a flame retardant has been added in an appropriate amount, exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index and/or the smoke spread values.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: Imperial Sugar Company
    Inventors: Douglas Svenson, Jose Luna, Thomas Rathke
  • Publication number: 20140179814
    Abstract: Polyurethane foams which are highly flame resistant are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and a non-halogenated flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam has a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index, flash over resistance determination, and the smoke spread values.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Imperial Sugar Co.
    Inventors: Joseph Mooney, Thomas Rathke, Jose Luna, Douglas Svenson
  • Publication number: 20130030067
    Abstract: Polyurethane foams which are highly flame resistant are described, as well as the production of such polyurethane foams by the reaction between a natural polyol, such as sucrose or a blend of mono- or disaccharides in place of the standard hydrocarbon-based polyol component, a polyisocyanate and water in the presence of a suitable polyurethane forming catalyst and a flame retardant, and optionally one or more components such as surfactants and/or emulsifiers. The resultant polyurethane foam has a bio-based solid content ranging from about 17% to 30%, may be formulated in a variety of foam densities for a variety of applications, and exhibits a high degree of fire and burn resistance, as exhibited by the flame spread index and the smoke spread values.
    Type: Application
    Filed: July 30, 2012
    Publication date: January 31, 2013
    Applicant: IMPERIAL SUGAR CO.
    Inventors: Joseph Mooney, Charles Valentine, Thomas Rathke, Douglas Svenson
  • Publication number: 20120189739
    Abstract: A base-syrup composition is described, wherein the base syrup is made up of one or more non-nutritive sweeteners, an invert sugar, and other optional additives are included in a reduced-calorie beverage or food product to achieve a taste substantially similar to that of a full-calorie beverage or food product. The combination is suitable for use in reduced-calorie carbonated and non-carbonated beverages, wherein the products and the base fluids exhibit a Harzen color number (APHA) of ?60. Preferably, the one or more non-nutritive sweeteners include one or more steviosides, a Stevia glycoside, a derivative of a Stevia glycoside, a glycoside of steviol, and/or a Lo Han Guo extract, including one or more mogrosides.
    Type: Application
    Filed: December 20, 2011
    Publication date: July 26, 2012
    Applicant: IMPERIAL SUGAR COMPANY
    Inventors: Thomas Rathke, Darrell Gerdes, James P. Hammond
  • Patent number: 7557245
    Abstract: The present invention relates to processes for purifying a composition containing (meth)acrylic acid, at least one impurity and water, wherein the composition has a water content in the range of 0.55 to 90, based on the composition, to form a purified phase containing (meth)acrylic acid and at least one impurity, wherein, in the purified phase, the quantity of at least one impurity is less than 7% by weight, based on (meth)acrylic acid in the purified phase.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: July 7, 2009
    Assignee: Evonik Stockhausen GmbH
    Inventors: Stefan Nordhoff, Torsten Balduf, Gunther Bub, Roland Fornika, Jurgen Mosler, Thomas Rathke, Axel Kobus, Dennis Thong
  • Publication number: 20090149562
    Abstract: A process for the preparation of (meth)acrylic acid is disclosed that includes: (a) contacting a product gas containing (meth)acrylic acid obtained from a gas phase oxidation with an aqueous phase in a quenching unit to obtain an aqueous quenched phase, (b) distilling the quenched phase in a distillation unit to obtain a bottom product and a top product, and (c) crystallizing at least the bottom product in a crystallization unit to obtain pure (meth)acrylic acid. An organic separating agent can be added after the quenching unit, such as at the latest in the crystallization unit. Also disclosed are a device for the preparation of (meth)acrylic acid, a process for the preparation of a polymer from the (meth)acrylic acid, a device for the preparation of the polymer, a polymer obtainable by this process, and the use of the (meth)acrylic acid or the polymer in a chemical product, such as fibers or shaped articles.
    Type: Application
    Filed: September 13, 2005
    Publication date: June 11, 2009
    Inventors: Stefan Nordhoff, Thomas Rathke, Torsten Balduf, Axel Kobus, Dennis Thong Yu-Chiang, Jorg Leistner
  • Publication number: 20080119668
    Abstract: A process for the preparation of (meth)acrylic acid is disclosed that includes: (a) contacting a product gas containing (meth)acrylic acid obtained from a gas phase oxidation with an aqueous phase in a quenching unit to obtain an aqueous quenched phase, (b) contacting the quenched phase with an organic separating agent in an extraction unit to give a first phase and at least one other phase, (c) crystallizing at least one of the first phase and the at least one other phase, such as by a suspension crystallization, in a crystallization unit to obtain a pure (meth)acrylic acid. Also disclosed are a device for the preparation of (meth)acrylic acid, a process for the preparation of a polymer from the (meth)acrylic acid, a device for the preparation of the polymer, a polymer obtainable by this process, and the use of the (meth)acrylic acid or the polymer in a chemical product, such as fibers or shaped articles.
    Type: Application
    Filed: September 13, 2005
    Publication date: May 22, 2008
    Inventors: Stefan Nordhoff, Axel Kobus, Torsten Balduf, Thomas Rathke, Dennis Thong Yu-Chiang, Jorg Leistner
  • Publication number: 20070280866
    Abstract: The present invention relates to a process for cleaving a (meth)acrylic acid oligomer of structure I wherein R1 is a hydrogen atom or a C1 to C10 alkyl groups, R2 is a hydrogen atom or a methyl group, and n is a whole number within the range between 1 and 200, optionally in the presence of a cleaving agent of the structure R3—OH or of the structure (R4)2—N—H, whereby R3 is a hydrogen atom, a C1 to C12 alkyl group, or a —CxH2x—OH— group, whereby x is a whole number within a range from 1 to 12, and R4 is a hydrogen atom or a C1 to C12 alkyl group, with the proviso that not both R4 groups are hydrogen atoms, whereby the (meth)acrylic acid oligomers are heated with the cleaving agent to a temperature of at least 50° C. at a pressure of at least 1 bar.
    Type: Application
    Filed: February 18, 2005
    Publication date: December 6, 2007
    Inventors: Torsten Balduf, Jurgen Mosler, Thomas Rathke, Dennis Thong Yu-Chiang, Axel Kobus, Rudolf Burghardt, Michael Fricke, Stefan Nordhoff
  • Publication number: 20050222459
    Abstract: The present invention relates to processes for purifying a composition containing (meth)acrylic acid, at least one impurity and water, wherein the composition has a water content in the range of 0.55 to 90, based on the composition, to form a purified phase containing (meth)acrylic acid and at least one impurity, wherein, in the purified phase, the quantity of at least one impurity is less than 7% by weight, based on (meth)acrylic acid in the purified phase.
    Type: Application
    Filed: March 17, 2003
    Publication date: October 6, 2005
    Inventors: Stefan Nordhoff, Torsten Balduf, Gunther Bub, Roland Fornika, Jurgen Mosler, Thomas Rathke, Axel Kobus, Dennis Thong
  • Patent number: D697789
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: January 21, 2014
    Assignee: Imperial Sugar Company
    Inventors: Darrell Gerdes, Thomas Rathke