Patents by Inventor Robert Valentine Kasowski

Robert Valentine Kasowski 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: 20220355148
    Abstract: An alternative to aqueous film forming foams containing fluorine for firefighting foams for flammable liquid fires is a mist of aqueous ethyleneamine polyphosphate solution or fumed silica doped ethyleneamine polyphosphate solution. The method consists of spraying a mist of such solutions into a flammable liquid fire to suppress the flames and cool the fire. The mist approach also suppresses flames of wood fires. An alternate approach is to add ethyleneamine polyphosphate or fumed silica doped ethyleneamine polyphosphate to a fluorine free foam to form a flame retarded foam that is able to smother a flammable liquid fire.
    Type: Application
    Filed: September 22, 2020
    Publication date: November 10, 2022
    Inventors: Robert Valentine Kasowski, Hahnah Seminara Kasowski
  • Publication number: 20210139784
    Abstract: Ethyleneamine polyphosphates are doped with organo silanes and hydrophilic fumed metal oxides such as hydrophilic fumed silica. Such doped EAPPA can then be added to polymers, with subsequently formed FR polymer having improved resistance to becoming sticky in humid air. These compositions are inherently drip resistant in a flame. Substantial addition of hydrophilic fumed silica stops stickiness in air and improves FR as measured by LOI.
    Type: Application
    Filed: May 25, 2019
    Publication date: May 13, 2021
    Inventor: Robert Valentine Kasowski
  • Patent number: 10501602
    Abstract: The flame-retardants of this invention were formed by the direct reaction of ethyleneamines and commercial polyphosphoric acid at an elevated temperature. It was unexpected that a high temperature had to be used to overcome reaction barrier to formation. These compounds are found to be efficient flame retardants.
    Type: Grant
    Filed: December 12, 2015
    Date of Patent: December 10, 2019
    Inventor: Robert Valentine Kasowski
  • Patent number: 9828501
    Abstract: A flame retardant containing composition resistant to becoming sticky from moisture is prepared by the introduction of epoxy containing compound either into the ethyleneamine polyphosphates or into the polymeric composition.
    Type: Grant
    Filed: May 19, 2012
    Date of Patent: November 28, 2017
    Inventor: Robert Valentine Kasowski
  • Publication number: 20170204250
    Abstract: The flame-retardants of this invention were formed by the direct reaction of ethyleneamines and commercial polyphosphoric acid at an elevated temperature. It was unexpected that a high temperature had to be used to overcome reaction barrier to formation. These compounds are found to be efficient flame retardants.
    Type: Application
    Filed: December 12, 2015
    Publication date: July 20, 2017
    Inventor: Robert Valentine Kasowski
  • Publication number: 20150080486
    Abstract: A flame retardant containing composition resistant to becoming sticky from moisture is prepared by the introduction of epoxy containing compound either into the ethyleneamine polyphosphates or into the polymeric composition.
    Type: Application
    Filed: May 19, 2012
    Publication date: March 19, 2015
    Inventor: Robert Valentine Kasowski
  • Patent number: 8703853
    Abstract: Ethyleneamine polyphosphates are good flame retardants. Use of non viscous phase enables making modified ethyleneamine polyphosphate of enhanced thermal stability and greatly reduced waste stream. Addition of fillers such as fumed silica unexpectedly improve the flame retardance. Organic phosphates improve compatibility.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 22, 2014
    Inventor: Robert Valentine Kasowski
  • Publication number: 20130341575
    Abstract: Ethyleneamine polyphosphates are good flame retardants. Use of non viscous phase enables making modified ethyleneamine polyphosphate of enhanced thermal stability and greatly reduced waste stream. Addition of fillers such as fumed silica unexpectedly improve the flame retardance. Organic phosphates improve compatibility.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 26, 2013
    Inventor: Robert Valentine Kasowski
  • Publication number: 20120282490
    Abstract: Ethyleneamine polyphosphates are good flame retardants. Use of non viscous phase enables making modified ethyleneamine polyphosphate of enhanced thermal stability and greatly reduced waste stream. Addition of fillers such as fumed silica unexpectedly improve the flame retardance. Organic phosphates improve compatibility.
    Type: Application
    Filed: October 19, 2010
    Publication date: November 8, 2012
    Inventor: Robert Valentine Kasowski
  • Patent number: 8212073
    Abstract: This invention relates to flame barrier compositions as well as a method for the preparation of the flame barrier compositions formed from a flame retardant composition and water. A protective barrier comprises a flame barrier composition or a flame barrier polymer on top of a layer or sandwiched between two or more layers of glass, wood, paper, polymer films, and other layered materials as well as mixtures of layers.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: July 3, 2012
    Inventor: Robert Valentine Kasowski
  • Publication number: 20090048372
    Abstract: This invention relates to flame barrier compositions as well as a method for the preparation of the flame barrier compositions formed from a flame retardant composition and water. A protective barrier comprises a flame barrier composition or a flame barrier polymer on top of a layer or sandwiched between two or more layers of glass, wood, paper, polymer films, and other layered materials as well as mixtures of layers.
    Type: Application
    Filed: November 29, 2004
    Publication date: February 19, 2009
    Inventor: Robert Valentine Kasowski
  • Patent number: 7138443
    Abstract: Flame retardants, and compositions containing the flame retardants are disclosed. The flame retardants are prepared reacting ethylene diamine with polyphosphoric acid; or reacting an ethyleneamine or a mixture of ethyleneamines with phosphoric acid, polyphosphoric acid, pyrophosphoric acid, or a mixtures thereof. A 10% by weight solution of the product in water has a pH between about 3.5 to 6.5. The flame retardants are non-halogen containing flame retardants that do not gas undesirably during processing at temperatures of 235° C. or even higher.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: November 21, 2006
    Inventors: Robert Valentine Kasowski, Maya Meltzer Kasowski
  • Patent number: 6268494
    Abstract: This invention relates to a novel process for the preparation of condensed melamine phosphates, and to melamine pyrophosphate prepared by this process having improved thermal stability as a flame retardant.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: July 31, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert Valentine Kasowski
  • Patent number: 6166114
    Abstract: This invention relates to polyester and polyamide compositions which contain a flame retardant, one or more alkaline earth metal salts, and a reinforcing agent. The flame retardant includes a melamine phosphate compound. Addition of at least one alkaline earth metal salt maintains the physical properties and the electrical properties of the resin composition, which degrade upon addition of melamine or melamine salts, while retaining the desired flame retardancy.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: December 26, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kevin Bodle Cosstick, Robert Valentine Kasowski
  • Patent number: 6025419
    Abstract: This invention relates to flame retardants for polyester and polyamide compositions, and specifically relates to compositions containing (1) about 30 to about 70 weight percent of a polyester or a synthetic, aliphatic polyamide and synthetic aliphatic, aromatic polyamide copolymers or a mixture thereof; (2) about 15 to about 40 weight percent of glass or mineral reinforcing agent; and (3) a flame retardant of (a) about 5 to about 45 weight percent of melamine polyphosphate; (b) about 15 to about 30 weight percent of melamine polyphosphate and up to about 10 weight percent of a charring catalyst; (c) about 15 to about 30 weight percent of melamine polyphosphate, up to about 10 weight percent of a charring catalyst and up to about 10 weight percent of a char former, wherein all percents by weight are based on the total weight of (1)+(2)+(3) only.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: February 15, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Valentine Kasowski, Marvin M. Martens
  • Patent number: 6015510
    Abstract: A flame retardant composition comprising coated particles, said particles having a core comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate, or mixtures thereof, said core having at least one coating comprising an organo silane, ester, polyol, dianhydride, dicarboxylic acid, melamine formaldehyde, or mixtures thereof; a polymer composition containing said flame retardant; a polymer composition containing a flame retardant comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate or mixtures thereof, and dicarboxylic acid, dianhydride, or mixtures thereof; and a process for preparation of said polymer compositions by increasing extruder throughput are disclosed.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: January 18, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Howard Wayne Jacobson, Robert Valentine Kasowski
  • Patent number: 5998503
    Abstract: A flame retardant composition comprising coated particles, said particles having a core comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate, or mixtures thereof, said core having at least one coating comprising an organo silane, ester, polyol, dianhydride, dicarboxylic acid, melamine formaldehyde, or mixtures thereof; a polymer composition containing said flame retardant; a polymer composition containing a flame retardant comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate or mixtures thereof, and dicarboxylic acid, dianhydride, or mixtures thereof; and a process for preparation of said polymer compositions by increasing extruder throughput are disclosed.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 7, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Howard Wayne Jacobson, Robert Valentine Kasowski
  • Patent number: 5859099
    Abstract: This invention relates to flame retardants for synthetic resin compositions. It is a composition comprising:(A) about 30 to about 70 wt. percent of a synthetic resin which is,(1) about 30 to about 70 wt. percent of a first resin which is polypropylene, polycarbonate, polyphenylene oxide or polystyrene, or copolymers of polystyrene and maleic anhydride, and(2) about 30 to about 70 wt. percent of a second resin which is polyethylene terephthalate, or nylon 6,6, or blends or mixtures thereof,wherein the wt. percentages of (A)(1) and (A)(2) total 100% as between (A)(1) and (A)(2),(B) a flame retardant selected from the group consisting of(1) about 20 to about 45 wt. percent of melamine pyrophosphate, or(2) about 15 to about 30 wt. percent of melamine pyrophosphate and up to about 10 wt. percent charring catalyst; or(3) about 15 to about 30 wt. percent of melamine pyrophosphate, up to about 10 wt. percent charring catalyst, and up to about 10 wt. percent of a char former, or(4) about 20 to about 40 wt.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: January 12, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert Valentine Kasowski
  • Patent number: 5708065
    Abstract: This invention relates to flame retardants for polyester and polyamide compositions, and specifically relates to compositions containing (1) about 30 to about 70 weight percent of a polyester or a synthetic, aliphatic polyamide or a mixture thereof; (2) about 15 to about 40 weight percent of glass or mineral reinforcing agent; and (3) a flame retardant of (a) about 20 to about 30 weight percent of melamine phosphate and up to about 10 weight percent of a charring catalyst; (b) about 15 to about 30 weight percent of melamine phosphate, up to about 10 weight percent of a charring catalyst and up to about 10 weight percent of a char former; (c) about 5 to about 45 weight percent of melamine pyrophosphate; (d) about 15 to about 30 weight percent of melamine pyrophosphate and up to about 10 weight percent of a charring catalyst; (e) about 15 to about 30 weight percent of melamine pyrophosphate, up to about 10 weight percent of a charring catalyst and up to about 10 weight percent of a char former, or (f) about 20
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: January 13, 1998
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Marvin Michel Martens, Robert Valentine Kasowski, Kevin Bodle Cosstick, Robert Earl Penn
  • Patent number: 5691404
    Abstract: Disclosed herein are compositions containing an aliphatic polyamide, a selected tungstic acid or its salt, and a coagent such as melamine cyanurate. These compositions exhibit good fire resistance and good physical toughness, particularly good elongation, and are useful as molding resins. The reaction product of a tungstic acid and melamine may alternatively be incorporated.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: November 25, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert Valentine Kasowski, Marvin Michael Martens