Patents by Inventor Mark A. Koshute

Mark A. Koshute 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).

  • Polyurethane foams with decreased aldehyde emissions, a process for preparing these foams and a method for decreasing aldehyde in polyurethane foams
    Patent number: 10066047
    Abstract: This invention relates to polyurethane foams which exhibit decreased aldehyde emission, to a process of preparing these polyurethane foams, and to a method of decreasing aldehyde emissions in foams. The polyurethane foams herein additionally comprise a small quantity of a polyhydrazodicarbonamide dispersion polyol to the isocyanate-reactive component, or a trimerized hexamethylene diisocyanate to the polyisocyanate component.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: September 4, 2018
    Assignee: Covestro LLC
    Inventors: Emmanuel George, Mark A. Koshute, Brian L. Neal, Carl Thompson, Adona Marcum
  • POLYURETHANE FOAMS WITH DECREASED ALDEHYDE EMISSIONS, A PROCESS FOR PREPARING THESE FOAMS AND A METHOD FOR DECREASING ALDEHYDE IN POLYURETHANE FOAMS
    Publication number: 20130203880
    Abstract: This invention relates to polyurethane foams which exhibit decreased aldehyde emission, to a process of preparing these polyurethane foams, and to a method of decreasing aldehyde emissions in foams. The polyurethane foams herein additionally comprise a small quantity of a polyhydrazodicarbonamide dispersion polyol to the isocyanate-reactive component, or a trimerized hexamethylene diisocyanate to the polyisocyanate component.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 8, 2013
    Applicant: Bayer MaterialScience LLC
    Inventors: Emmanuel George, Mark A. Koshute, Brian L. Neal, Carl Thompson, Adona Marcum
  • Stable dispersions of polyhydrazodicarbonamides useful in the preparation of polyurethane products having improved load-bearing capacity
    Patent number: 5342855
    Abstract: This invention relates to a process for the preparation of stable dispersions of hydroxyl-containing polyhydrazodicarbonamides in a hydroxyl-containing compound. The dispersions are prepared by the reaction of organic isocyanates, isocyanate-reactive compounds having a molecular weight in the range from 400 to 10,000, relatively low molecular weight isocyanate-reactive compounds, and hydrazines or hydrazides. This invention further relates to the dispersions prepared by said process, the use of the dispersions to prepare polyurethane foams having exceptional hardness, and the foams prepared thereby.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: August 30, 1994
    Assignee: Miles Inc.
    Inventors: Michael A. Lucarelli, Richard E. Keegan, Mark A. Koshute, Hans-Albrecht Freitag, Geza Avar
  • Stable dispersions and their use in the preparation of polyurethane foams
    Patent number: 5332763
    Abstract: The present invention relates to an improved process for preparing foams comprising reacting polyisocyanates with an in situ produced stable low solids dispersion of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material as a dispersing agent by reacting:(a) organic polyisocyanates with(b) a member selected from the group consisting of (i) polyamines containing primary and/or secondary amino groups, (ii) hydrazines, (iii) hydrazides, or (iv) mixtures thereof, in(c) said hydroxyl-group-containing material.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: July 26, 1994
    Assignee: Miles Inc.
    Inventor: Mark A. Koshute
  • Process for the production of stable dispersions, the dispersions so produced, and the use thereof in the manufacture of polyurethanes
    Patent number: 4855352
    Abstract: Stable finely-divided dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material are made by reacting (i) an isocyanate with (ii) a compound selected from polyamines, hydrazines, hydrazides and mixtures thereof in the presence of (iii) a hydroxyl compound selected from polyethers, polyesters, polyester amides, polycarbonates and mixtures thereof and (iv) a catalyst. The catalyst is a compound which catalyzes the reaction of isocyanate groups with hydroxyl groups. The catalyst is used in a quantity of at least 50 parts per million parts of (i), (ii) and (iii). These dispersions are particularly useful in the production of polyurethanes.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: August 8, 1989
    Assignee: Mobay Corporation
    Inventors: Michael K. Lowery, Richard E. Keegan, Mark A. Koshute
  • Stable dispersions and the manufacture thereof
    Patent number: 4847320
    Abstract: The present invention relates to a process for the production of stable dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material by reacting an organic di- or polyisocyanate with a composition selected from the group consisting of polyamines containing primary and/or secondary amine groups, hydrazines, hydrazides, and mixtures thereof, in said hydroxyl-group containing material, in the presence of a dispersion stabilizing compound.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: July 11, 1989
    Assignee: Mobay Corporation
    Inventors: Michael K. Lowery, Richard E. Keegan, Mark A. Koshute