Patents by Inventor Kenneth W. Hartman

Kenneth W. Hartman 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).

  • High boiling inhibitors for distillable, polymerizable monomers
    Publication number: 20030065177
    Abstract: Disclosed herein are compounds of the structure 1
    Type: Application
    Filed: May 28, 2002
    Publication date: April 3, 2003
    Applicant: CROMPTON CORPORATION, a corporation of the State of Delaware
    Inventors: Robert E. Sheridan, Kenneth W. Hartman
  • Sulfur-containing silane coupling agents
    Patent number: 6518335
    Abstract: A method is provided for preparing sulfur-containing silane coupling agents by reacting an alkoxysilane acetal with a sulfurating agent. The sulfur-containing silane coupling agents so prepared include certain novel mercapto silanes, and are useful in providing rubber tires with improved properties.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: February 11, 2003
    Assignee: Crompton Corporation
    Inventors: James D. Reedy, Kenneth W. Hartman
  • High boiling inhibitors for distillable, polymerizable monomers
    Patent number: 6475347
    Abstract: Disclosed herein are compounds of the structure wherein R1, R2, and R3 are organic radicals of C1 to C20, such that the combination of the three contain at least twelve carbon atoms and R3 is bound to the methylene carbon atom between X and the aromatic ring by at least one saturated carbon atom, allowing it to be easily separated from the polymerizable monomer by distillation; R1 and R2 have sufficient steric bulk to protect the phenol from reacting with an alkoxy group or halogen bound to silicon; and X is a neutral heteroatomic radical of oxygen, nitrogen, or phosphorus; and their use as inhibitors for the polymerization of (meth)acryloxysilanes.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: November 5, 2002
    Assignee: Crompton Corporation
    Inventors: Robert E. Sheridan, Kenneth W. Hartman
  • Hot oil process for producing isocyanato organosilanes
    Patent number: 6008396
    Abstract: Disclosed is a process for making isocyanatoorganosilane by adding a carbamatoorganosilane of the general formula to an inert liquid medium and holding the mixture thus formed at a temperature and pressure effective to convert said carbamatoorganosilane to isocyanatoorganosilane.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: December 28, 1999
    Assignee: OSI Specialties, Inc.
    Inventors: Robert E. Sheridan, Kenneth W. Hartman
  • Surface-active siloxane coating compounds and their use in coatings
    Patent number: 5359109
    Abstract: The present invention provides a class of surface-active siloxane compounds each having a single reactive alkoxysilane moiety. The siloxane compounds are linear or cyclic and are reactive to moisture and to compositions having hydroxyl-functionality.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: October 25, 1994
    Assignee: OSi Specialties, Inc.
    Inventors: James S. Ritscher, James D. Reedy, Kenneth W. Hartman