Patents by Inventor Donnie Ray Juen

Donnie Ray Juen 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).

  • Foam control compositions having resin-fillers
    Patent number: 6207722
    Abstract: The present invention relates to a foam control composition and to its use in foaming systems. More particularly, this invention relates to a foam control composition comprising a polysiloxane and a resin-filler made from MQ resins having at least one polyoxyalkylene group. The compositions of this invention exhibit excellent defoam effects and antifoam persistency.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: March 27, 2001
    Assignees: Dow Corning Corporation, Dow Corning S.A.
    Inventors: Donnie Ray Juen, Bianxiao Zhong, Mercedes Diaz, Tessa Johnson
  • Resin-fillers produced in-situ in silicone polymer compositions method for preparation of the compositions
    Patent number: 6075087
    Abstract: This invention relates to resin-fillers and compositions containing the resin-fillers. Resin-fillers are the reaction product of a resin having monofunctional siloxane (M) units and tetrafunctional siloxane (Q) units, chemically linked to a crosslinker by addition reaction. The resin-fillers have properties more similar to those of silica fillers and less like those of conventional MQ resins. The resin-fillers are insoluble in solvents, form homogeneous blends with silicone polymers, and dramatically impact modulus and viscosity of a polymer even at low (e.g. 5 to 10 wt %) loading.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: June 13, 2000
    Assignee: Dow Corning Corporation
    Inventors: Donnie Ray Juen, Bianxiao Zhong
  • Ultra-high molecular weight, soluble siloxane resins
    Patent number: 6072012
    Abstract: An ultra-high molecular weight MQ resin and a method for its preparation are disclosed. The ultra-high molecular weight MQ resin has weight average molecular weight of at least 100,000, and the ultra-high molecular weight MQ resin is soluble in organic solvents.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: June 6, 2000
    Assignee: Dow Corning Corporation
    Inventors: Donnie Ray Juen, Bianxiao Zhong
  • Organosiloxane compositions yielding machinable erosion resistant elastomers
    Patent number: 5948856
    Abstract: Curable organosiloxane compositions that cure by a platinum group metal catalyzed hydrosilation reaction to yield machinable elastomers exhibiting a high resistance to erosion contain an alkenyl-functional organosiloxane copolymer as the reinforcing agent together with quartz and organic or inorganic microspheres as the non-reinforcing filler. The concentration and density of the microspheres are preferably within specified limits.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: September 7, 1999
    Assignee: Dow Corning Corporation
    Inventors: Donnie Ray Juen, Michael G. Krueger, Lawrence Joseph Rapson