Patents by Inventor Jonathan Vierling DeGroot, Jr.

Jonathan Vierling DeGroot, Jr. 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).

  • Heat curable silicone rubber composition with improved resistance to engine oils and coolants
    Patent number: 6417263
    Abstract: A heat curable silicone rubber composition, having improved resistance to engine coolants and oils, including long-life coolants and synthetic motor oils, comprises: (A) 100 parts by weight of an organosiloxane polymer base comprising an organosiloxane polymer containing at least 2 silicon-bonded alkenyl groups in each molecule and 1 to 65 weight percent reinforcing silica filler, (B) curing component sufficient to cure the composition when heated, and (C) an effective amount of at least one metal salt additive selected from the group consisting of monobasic alkali metal phosphates, alkali metal oxalates, alkali metal tartrates, alkali metal tetraborates, alkali metal phthalates, alkali metal citrates; dibasic metal phosphates where the metal is selected from the group consisting of sodium, potassium, calcium and magnesium; metal acetates, where the metal is selected from the group consisting of sodium, potassium, calcium, magnesium; metal sulfates where the metal is selected from the group consisting of s
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 9, 2002
    Assignee: Dow Corning Corporation
    Inventors: Jonathan Vierling DeGroot, Jr., Lawrence Dale Fielder, William James Schulz, Jr., Antony Pope Wright