Patents by Inventor Brian Douglas Chapman

Brian Douglas Chapman 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).

  • Branched polymers from organohydrogensilicon compounds
    Patent number: 7449536
    Abstract: A method comprising heating in the presence of a catalyst, a mixture comprising (i) a reaction product obtained by mixing in the presence of a platinum group metal-containing catalyst at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and at least one compound having at least one aliphatic unsaturation; (ii) at least one endblocker, and optionally (iii) at least one organosiloxane chosen from a hydrolyzate or a cyclosiloxane, so to cause polymerization of components (i), (ii), and optionally (iii) to form branched polymers.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: November 11, 2008
    Assignee: Dow Corning Corporation
    Inventors: Brian Douglas Chapman, Loren Dean Durfee, Timothy Paul Mitchell, James Steven Tonge, Paul Cornelius Vandort
  • Branched polymers from organohydrogensilicon compounds
    Patent number: 7432338
    Abstract: This invention relates to a method comprising (1) heating in the presence of a catalyst a mixture comprising (i) at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule or a reaction product obtained by mixing in the presence of a platinum group metal-containing catalyst at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and at least one compound having at least one aliphatic unsaturation, (ii) at least one endblocker, and optionally (iii) at least one organosiloxane chosen from a hydrolyzate or a cyclosiloxane, so to cause polymerization of components (i), (ii), and optionally (iii) to form silicon-bonded hydrogen containing branched polymers.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: October 7, 2008
    Assignee: Dow Corning Corporation
    Inventors: Brian Douglas Chapman, Loren Dean Durfee, Timothy Paul Mitchell, James Steven Tonge, Paul Cornelius Vandort
  • Organohydrogensilicon compounds
    Patent number: 7429636
    Abstract: Organohydrogensilicon compounds containing at least one silicon-bonded hydrogen atom per molecule and at least one cyclosiloxane.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: September 30, 2008
    Assignee: Dow Corning Corporation
    Inventors: Karmen Karen Asch, Brian Douglas Chapman, Loren Dean Durfee, Robert Michael Hensel, Timothy Paul Mitchell, James Steven Tonge, Paul Cornelius Van Dort
  • Compositions having improved bath life
    Patent number: 7378482
    Abstract: A composition comprising (A) at least one compound having at least one aliphatic unsaturation; (B) at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and (C) a platinum group metal-containing catalyst.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: May 27, 2008
    Assignee: Dow Corning Corporation
    Inventors: Karmen Karen Asch, Brian Douglas Chapman, Loren Dean Durfee, Robert Michael Hensel, Timothy Paul Mitchell, James Steven Tonge, Paul Cornelius Van Dort, Loretta Ann Jones