Patents by Inventor Paquita E. Barnum

Paquita E. Barnum 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: 5242979
    Abstract: This invention is directed to a polymeric composition comprising (a) a continuous phase of a cross-linked organosilicon polymer comprised of alternating (i) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings and (ii) residues derived from the group consisting of cyclic polysiloxanes and tetrahedral siloxysilanes, linked through carbon to silicon bonds, and (b) a discontinuous phase of a low molecular weight hydrocarbon elastomer having at least two hydrosilation reactable carbon-carbon double bonds.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: September 7, 1993
    Assignee: Hercules Incorporated
    Inventors: Paquita E. Barnum, Richard L. Brady
  • Patent number: 5171817
    Abstract: This invention is directed to a composition comprising (A) a continuous phase of (i) a crosslinked organosilicon polymer or crosslinkable organosilicon prepolymer comprising alternating (a) cyclic polysiloxane or tetrahedral siloxysilane residues and (b) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings linked through carbon to silicon bonds, wherein at least one of the cyclic polysiloxanes or tetrahedral siloxysilanes (a) or the polycyclic polyenes (b) used to form the polymer or prepolymer has more than two reactive sites; or (ii) a crosslinked or crosslinkable linear poly(organohydrosiloxane) polymer having at least 30% of its .tbd.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: December 15, 1992
    Assignee: Hercules Incorporated
    Inventors: Paquita E. Barnum, Richard L. Brady
  • Patent number: 5051468
    Abstract: Polymers having the general idealized structure: ##STR1## wherein a, b and c represent the number of monomer units of each respective monomer, the sum of a and b is 200 to 5000, b is the product of a multiplied by 0 though 0.25, c/(a+b)=0.0001 to 0.006, m is 5 to 21, and the sum of m and n is 10 to 42, and aqueous solutions comprising such polymers, are disclosed.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: September 24, 1991
    Assignee: Aqualon Company
    Inventor: Paquita E. Barnum