Patents by Inventor David R. Hansen

David R. Hansen 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: 5075782
    Abstract: Reproduction apparatus is disclosed having at least one image signal generator, a multiple page buffer memory for storing the image signals, and a writer for forming images from the page buffer memory. Upon the occurrence of a malfunction in the writer, operation of the image signal generator is continued only until the first to occur of (a) all of the original pages have been stored in the multiple page buffer memory or (b) the multiple page buffer memory is filled. Upon the occurrence of a malfunction in the signal generator, operation of the writer is continued until the next page to be written has not been stored in the buffer memory.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: December 24, 1991
    Assignee: Eastman Kodak Company
    Inventors: Charles M. Tufano, Russell L. Godshalk, David R. Hansen
  • Patent number: 4904731
    Abstract: A polymeric composition comprising: an olefin polymer; a hydrogenated block copolymer comprising at least two polymeric block containing predominantly monoalkenyl aromatic hydrocarbon monomer units and at least one block containing predominantly hydrogenated, conjugated diolefin monomeric monomer units; and an LLDPE. The weight ratio of block copolymer to LLDPE in the polymeric composition will be within the range from about 5:1 to about 1:3. Shaped structures prepared with the polymeric composition will generally exhibit good clarity and good impact strength.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: February 27, 1990
    Assignee: Shell Oil Company
    Inventors: Geoffrey Holden, David R. Hansen
  • Patent number: 4568713
    Abstract: Hot melt adhesives with long open time and good cold metal bonding are made of blends of an at least partially crystalline copolymer of butene-1 and ethylene, an aliphatic, substantially non-polar resin, an antioxidizing agent and, optionally, microcrystalline wax.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: February 4, 1986
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, David J. St. Clair
  • Patent number: 4554304
    Abstract: Hot melt adhesives with long open time good bonding to cold metals are made of blends of a maleic anhydride modified copolymer of butene-1 and ethylene, an aliphatic, substantially non-polar resin, a antioxidizing agent and, optionally, microcrystalline wax, a block copolymer and atactic polypropylene.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: November 19, 1985
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, William H. Korcz
  • Patent number: 4405680
    Abstract: This invention relates to a roofing shingle having improved low temperature flexibility comprising a flexibilized mat prepared by impregnating a glass fiber web with the blend of an unblown asphalt and a monoalkenyl arene-conjugated diene block copolymer, wherein the flexibilized mat is coated with a blend of an air-blown bitumen and a filler.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: September 20, 1983
    Assignee: Shell Oil Company
    Inventor: David R. Hansen
  • Patent number: 4229338
    Abstract: A footwear composition having a simulated suede appearance is prepared by melt blending a monoalkenyl arene/diene block copolymer, oil, silica filler, styrene polymer, pigment and synthetic fiber at a temperature below the melting point of the fiber. The synthetic fiber is preferably selected from the group consisting of polyamide fibers, polyester fibers, acrylic fibers, and mixtures thereof.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: October 21, 1980
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, Glenn R. Himes
  • Patent number: 4152231
    Abstract: A cured polymer composition possessing excellent cohesive strength at high temperatures along with good solvent resistance and processing characteristics is prepared by the radiation curing of a composition comprising a linear or radial polydiene, tackifying resin, and a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of acrylic and methacrylic acid esters of polyols.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: May 1, 1979
    Assignee: Shell Oil Company
    Inventors: David J. St. Clair, David R. Hansen
  • Patent number: 4151057
    Abstract: A cured adhesive composition possessing excellent cohesive strength at high temperatures along with excellent shear strength and solvent resistance is prepared by the electron beam initiated curing of an adhesive composition comprising selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer component, tackifying resin and a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of acrylic and methacrylic acid esters of polyols.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: April 24, 1979
    Assignee: Shell Oil Company
    Inventors: David J. St. Clair, David R. Hansen
  • Patent number: 4141876
    Abstract: An adhesive composition having greatly improved high temperature properties is prepared by melt blending a polyphenylene ether resin, a selectively hydrogenated arene/conjugated diene block copolymer, tackifying resin, and optional hydrocarbon processing oil.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: February 27, 1979
    Assignee: Shell Oil Company
    Inventor: David R. Hansen
  • Patent number: 4133731
    Abstract: A cured adhesive composition possessing excellent cohesive strength at high temperatures along with excellent adhesion, shear strength and solvent resistance is prepared by the radiation initiated curing of an adhesive composition comprising a monoalkenyl arene/conjugated diene block copolymer, tackifying resin and a di-to-tetra-functional acrylate or methacrylate selected from the group consisting of acrylic and methacrylic acid esters of polyols.
    Type: Grant
    Filed: March 3, 1978
    Date of Patent: January 9, 1979
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, David J. St. Clair
  • Patent number: 4107233
    Abstract: Blends of alkenyl arene - diene block copolymers with certain acrylic resins having a random copolymer structure exhibit improved adhesion to polyurethane cements and other substrates.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: August 15, 1978
    Assignee: Shell Oil Company
    Inventor: David R. Hansen
  • Patent number: 4104323
    Abstract: An adhesive composition and process for making the same are disclosed wherein the adhesive composition has greatly improved high temperature properties. The adhesive composition is prepared by first melt blending a polyphenylene ether resin and a low molecular weight resin, and then blending the resulting mixture with a monoalkenyl arene/conjugated diene block copolymer, tackifying resin, and optional hydrocarbon processing oil.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: August 1, 1978
    Assignee: Shell Oil Company
    Inventor: David R. Hansen
  • Patent number: T959010
    Abstract: a resin composition for use in printing ink compositions comprises (a) a block copolymer having at least two polymer end blocks A and at least one polymer mid block B, each block A being a non-elastomeric polymer block of a monoalkenyl arene and each block B being an elastomeric hydrogenated polymer block of a conjugated diene; and (b) an end block compatible resin having a softening point above about 100.degree. C, said end block compatible resin being selected from the group consisting of coumarone-indene resins, vinyl toluene-alphamethyl styrene copolymers, alphamethyl styrene homopolymers, polyindene resins and polystyrene resins. The above resin composition when employed in printing ink compositions results in a much improved adhesion of the printing ink to certain wire coatings comprising the above block copolymer along with various fillers, extending oils, polymeric alphaolefins, and fire retardants.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: June 7, 1977
    Inventor: David R. Hansen
  • Patent number: T971008
    Abstract: an improved footwear assembly is disclosed comprising a textile upper, a polymeric soling and a foxing wherein the foxing comprises a monoalkenyl arene-conjugated diene block copolymer. The improvement lies in coating at least the area of the upper which is contacted with the foxing with a silane compound containing at least one functional group. These functional groups include halogens, alkoxy groups, alkyl amines, methacryloxypropyl groups, alkyl mercapto groups, alkyloxy epoxy radicals and mixtures thereof. Preferably, both the foxing and polymeric soling are formed from compositions containing styrene-butadiene block copolymers.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: June 6, 1978
    Assignee: Shell Oil Company
    Inventor: David R. Hansen
  • Patent number: T975004
    Abstract: an oil-free, pressure sensitive adhesive composition comprises a monoalkenyl arene/isoprene block copolymer, a tackifying resin compatible with the isoprene block and a predominately aromatic second resin compatible with the monoalkenyl arene block. These adhesive compositions possess excellent adhesive properties along with a lower melt viscosity and lower cost.
    Type: Grant
    Filed: January 31, 1978
    Date of Patent: October 3, 1978
    Assignee: Shell Oil Company
    Inventors: David R. Hansen, George T. Coker, Jr.