Patents by Inventor Carlton Edwin Ash

Carlton Edwin Ash 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).

  • Polyfunctional polyolefins
    Patent number: 6448333
    Abstract: A grafted polyolefin polymers having high polarity produced by grafting bi-functional N-substituted diacids to maleated or other functional group grafted polyolefin. The new polymers exhibit improved water miscibility, compatability and good adhesion to polar materials such as nylon, polyester, glass, and metal substrates.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: September 10, 2002
    Assignee: Shell Oil Company
    Inventors: Manuel Soler Rodriguez, Pierre Nazareth Tutunjian, Charles Lee Edwards, Paul Karol Casey, Carlton Edwin Ash, Charles C. Hwo, Pui Kwan Wong
  • Multilayer polyketone structures
    Patent number: 6051323
    Abstract: Multilayer polyketone compositions are presented. These compositions have at least one layer of polyketone, at least one layer of a polyamide having a lengthy aliphatic chain segment and a tielayer of a polyamide having a short aliphatic chain segment, a polyamide-AABB portion, a polyamide having a lengthy aliphatic chain segment, and preferably residual polyamide monomer. Processes for making these composites are also presented. In another embodiment of the invention, the tielayer is a polyamide monomer.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: April 18, 2000
    Assignee: Shell Oil Company
    Inventors: Carlton Edwin Ash, Dixie G. Waters, Richard L. Danforth
  • Polyketone solvents
    Patent number: 5977231
    Abstract: A polyketone solution is prepared by the dissolution of alternating aliphatic polyketone in a solution of LiX. X can be I, Br, or SCN. At a given temperature, these solvents completely dissolve polyketone when aqueous or organic solutions are made from particular concentrations.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: November 2, 1999
    Assignee: Shell Oil Company
    Inventor: Carlton Edwin Ash
  • Surface derivatization of polyketones polymers
    Patent number: 5955562
    Abstract: A alternating aliphatic polyketone polymer is surface derivatized to alter the surface properties of an article without affecting the bulk properties of the polymer it is made from. Derivitization may be done with reducing agents and/or silylating agents. Articles so produced display a range of improved properties including reduced wettability and improved tribological properties such as lubricity and wear resistance.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 21, 1999
    Assignee: Shell Oil Company
    Inventors: Carlton Edwin Ash, Donald Ross Kelsey
  • Solution spinning polyketone fibers
    Patent number: 5955019
    Abstract: A process for preparing filaments of polyketones which can be formed into various fibers is presented. The process involves preparing a solution of polyketone in a solvent, passing the solution through a die to produce a strand, coagulating the strand to produce a filament, removing solvent from the presence of the filament, and subsequently drawing the filament. The solvents are zinc and lithium based solutions.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: September 21, 1999
    Assignee: Shell Oil Company
    Inventor: Carlton Edwin Ash
  • Polyketone solvents
    Patent number: 5929150
    Abstract: A polyketone solution is prepared by the dissolution of alternating aliphatic polyketone in a solution of ZnX.sub.2. X can be Cl, Br, or I. At a given temperature, these solvents completely dissolve polyketone when aqueous or organic solutions are made from particular concentrations.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: July 27, 1999
    Assignee: Shell Oil Company
    Inventor: Carlton Edwin Ash
  • Polyketone composite
    Patent number: 5921649
    Abstract: A composite of a polyketone and an amine modified acid copolymer having low acid content is presented. The composite may also have additional layers of other polymers such as polyolefins. Processes for making these composite and a kit of parts suitable for making these composites are also presented.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: July 13, 1999
    Assignee: Shell Oil Company
    Inventor: Carlton Edwin Ash
  • Graft copolymerized compositions
    Patent number: 5869576
    Abstract: Relatively low molecular weight Olefin/CO copolymers are graft copolymerized with vinyl monomers by the exposure of a mixture of a dispersion of the two to high energy radiation such as .gamma. ray radiation. Styrene is an example of a monomer useful in forming the graft copolymer. The graft copolymers are useful as waterborne glues particularly in the preparation of wood composites.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: February 9, 1999
    Assignee: Shell Oil Company
    Inventors: Carlton Edwin Ash, Narayana Mysore, Pui Kwan Wong