Patents by Inventor Rick D. Davis

Rick D. Davis 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).

  • Elastomeric compositions comprising hydrocarbon polymer additives having improved impermeability
    Patent number: 8476352
    Abstract: An elastomeric compositions having improved impermeability is disclosed. The cured elastomeric composition may comprise at least one C4-C7 monoolefin elastomer, a hydrocarbon polymer additive, and a clay. In some embodiments, the cured elastomeric composition has a permeation coefficient at 40° C. of 90 cc*mm/(m2-day) or less. In some embodiments, the elastomeric composition is substantially free of naphthenic oil.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 2, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael B. Rodgers, Rick D. Davis, Anthony J. Dias, Weiqing Weng
  • Elastomeric compositions having improved properties
    Patent number: 8013054
    Abstract: Elastomeric compositions comprising at least one C4 to C7 monoolefin elastomer, at least one polyalphaolefin, and optionally at least one hydrocarbon polymer additive are disclosed. The PAO comprises oligomers of one or more C2 to C20 alpha-olefins having a kinematic viscosity at 100° C. of 3 to 3000 cSt and a Mw/Mn of less than 4. In one aspect, the elastomeric composition may have improved flex fatigue properties and have a fatigue life of 450,000 Kc or more as measured by ASTM D 412 die C. In another aspect, an elastomeric composition may have improved impermeability and have a permeation coefficient at 40° C. of 160 cc*mm/(m2?day) or less.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: September 6, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael Brendan Rodgers, David J. Lohse, Scott C. Solis, Rick D. Davis, Jung Hun Lee
  • Elastomeric Compositions Having Improved Properties
    Publication number: 20100036038
    Abstract: Elastomeric compositions comprising at least one C4 to C7 monoolefin elastomer, at least one polyalphaolefin, and optionally at least one hydrocarbon polymer additive are disclosed. The PAO comprises oligomers of one or more C2 to C20 alpha-olefins having a kinematic viscosity at 100° C. of 3 to 3000 cSt and a Mw/Mn of less than 4. In one aspect, the elastomeric composition may have improved flex fatigue properties and have a fatigue life of 450,000 Kc or more as measured by ASTM D 412 die C. In another aspect, an elastomeric composition may have improved impermeability and have a permeation coefficient at 40° C. of 160 cc*mm/(m2?day) or less.
    Type: Application
    Filed: June 26, 2009
    Publication date: February 11, 2010
    Inventors: Michael Brendan Rodgers, David J. Lohse, Scott C. Solis, Rick D. Davis, Jung Hun Lee
  • Elastomeric Compositions Comprising Hydrocarbon Polymer Additives Having Improved Impermeability
    Publication number: 20100036025
    Abstract: An elastomeric compositions having improved impermeability is disclosed. The cured elastomeric composition may comprise at least one C4-C7 monoolefin elastomer, a hydrocarbon polymer additive, and a clay. In some embodiments, the cured elastomeric composition has a permeation coefficient at 40° C. of 90 cc*mm/(m2-day) or less. In some embodiments, the elastomeric composition is substantially free of naphthenic oil.
    Type: Application
    Filed: June 26, 2009
    Publication date: February 11, 2010
    Inventors: Michael B. Rodgers, Rick D. Davis, Anthony J. Dias, Weiqing Weng