Patents by Inventor Kenneth J. Hinze

Kenneth J. Hinze 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).

  • Polymer polyols containing halogenated aromatic monomers and polyurethane foam made therefrom
    Patent number: 5824712
    Abstract: A polymer polyol is produced by a process comprising free radical polymerizing an addition polymerizable di-(substituted phenyl)monomer (e.g., methacrylic ester of diglycidylether of tetrabromobisphenol A) component in the presence of a polyol, wherein the monomer has at least one aromatic halogen and at least one aromatic ethylenically unsaturated substituent. The polymer polyol can also be made by copolymerizing said monomer with an additional ethylenically unsaturated monomer component such as styrene and acrylonitrile. Said polymer polyols are reacted with a polyisocyanate compound forming a flame retardant polyurethane foam.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: October 20, 1998
    Assignee: The Dow Chemical Company
    Inventors: Wayne R. Willkomm, Kenneth J. Hinze, Ruben Solis
  • Polymer polyols containing halogenated aromatic monomers and polyurethane foam made therefrom
    Patent number: 5741847
    Abstract: A polymer polyol is produced by a process comprising free radical polymerizing an addition polymerizable di-(substituted phenyl)monomer (e.g., methacrylic ester of diglycidylether of tetrabromobisphenol A) component in the presence of a polyol, wherein the monomer has at least one aromatic halogen and at least one aromatic ethylenically unsaturated substituent. The polymer polyol can also be made by copolymerizing said monomer with an additional ethylenically unsaturated monomer component such as styrene and acrylonitrile. Said polymer polyols are reacted with a polyisocyanate compound forming a flame retardant polyurethane foam.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: April 21, 1998
    Assignee: The Dow Chemical Company
    Inventors: Wayne R. Willkomm, Ruben Solis, Kenneth J. Hinze
  • Antioxidant compositions
    Patent number: 4363745
    Abstract: Antioxidant compositions containing (a) a sterically hindered phenol, (b) 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl) diphenyl amine and (c) a phenothiazine compound stabilize polyols against oxidative degradation and prevent urethane foams prepared therefrom from scorching.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: December 14, 1982
    Assignee: The Dow Chemical Company
    Inventor: Kenneth J. Hinze
  • Stabilization of polyether polyols and polyurethane foams prepared therefrom
    Patent number: 4275173
    Abstract: Polyurethane foams are prepared from polyols stabilized against oxidative degradation with a synergistic combination of a sterically hindered phenol and 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl)diphenyl amine in which a portion of either the phenol or the amine or a portion of both have been replaced with a phenothiazine compound.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: June 23, 1981
    Assignee: The Dow Chemical Company
    Inventor: Kenneth J. Hinze
  • Stabilization of polyether polyols and polyurethane foams prepared therefrom
    Patent number: 4265783
    Abstract: Polyols stabilized against oxidative degradation with a synergistic combination of a sterically hindered phenol and 4,4'-bis(.alpha.,.alpha.-dimethylbenzyl)diphenyl amine are improved by replacing a portion of either the phenol or the amine or a portion of both with a phenothiazine compound.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: May 5, 1981
    Assignee: The Dow Chemical Company
    Inventor: Kenneth J. Hinze
  • Antioxidant composition, stabilized polyols and polyurethanes prepared therefrom
    Patent number: 4070304
    Abstract: Synergistic antioxidant compositions consisting of certain hindered phenols such as 2,4-dimethyl-6-octyl phenol and 4,4'-bis (.alpha.,.alpha.-dimethylbenzyl) diphenyl amine are useful to stabilize polyether polyols against oxidative degradation and prevent scorch in polyurethane foams prepared from the polyether polyols.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: January 24, 1978
    Assignee: The Dow Chemical Company
    Inventor: Kenneth J. Hinze
  • Antioxidant composition for stabilizing polyols
    Patent number: 4007230
    Abstract: Synergistic antioxidant compositions consisting of certain hindered phenols such as 2,4-dimethyl-6-octyl phenol and 4,4'-bis (.alpha.,.alpha.-dimethylbenzyl) diphenyl amine are useful to stabilize polyether polyols against oxidative degradation and prevent scorch in polyurethane foams prepared from the polyether polyols.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: February 8, 1977
    Assignee: The Dow Chemical Company
    Inventor: Kenneth J. Hinze