Patents by Inventor Chad Aaron Buesing

Chad Aaron Buesing 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).

  • Patent number: 6740767
    Abstract: A process for producing organosilicon compounds of the formula (RO)3-mRmSi—Alk—Sn—Alk—SiRm(OR)3-m in which R is a monovalent hydrocarbon having 1-12 carbon atoms, Alk is a divalent hydrocarbon having 1-18 carbon atoms, m is 0, 1 or 2, and n is 2-8, preferably 3-8. The process consists generally of the steps of (I) heating and reacting (A) a sulfide compound such as M2Sn or MHS where H is hydrogen, M is ammonium or an alkali metal, and n is 1-8; with (B) a silane compound of the formula (RO)3-mRmSi—Alk—X where X is Cl, Br or I, and m is 0, 1, or 2; and with (C) sulfur. Step (I) is carried out in the presence of a phase transfer catalyst, and an aqueous phase containing a buffer or a basic compound, to form a product mixture. In step (II), the product mixture is again heated to a temperature of 80-100° C., preferably a temperature of 85-95° C., and most preferably to a temperature of 87-92° C.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: May 25, 2004
    Assignee: Dow Corning Corporation
    Inventors: Chad Aaron Buesing, John Michael Gohndrone
  • Publication number: 20040092758
    Abstract: A process for producing organosilicon compounds of the formula (RO)3-mRmSi-Alk-Sn-Alk-SiRm(OR)3-m in which R is a monovalent hydrocarbon having 1-12 carbon atoms, Alk is a divalent hydrocarbon having 1-18 carbon atoms, m is 0, 1 or 2, and n is 2-8, preferably 3-8. The process consists generally of the steps of (I) heating and reacting (A) a sulfide compound such as M2Sn or MHS where H is hydrogen, M is ammonium or an alkali metal, and n is 1-8; with (B) a silane compound of the formula (RO)3-mRmSi-Alk-X where X is Cl, Br or I, and m is 0, 1, or 2; and with (C) sulfur. Step (I) is carried out in the presence of a phase transfer catalyst, and an aqueous phase containing a buffer or a basic compound, to form a product mixture. In step (II), the product mixture is again heated to a temperature of 80-100 ° C., preferably a temperature of 85-95 ° C., and most preferably to a temperature of 87-92° C.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 13, 2004
    Inventors: Chad Aaron Buesing, John Michael Gohndrone