Patents by Inventor Hugh West

Hugh West 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).

  • Publication number: 20050000669
    Abstract: Cellulose pulp sheets treated with a saccharide yield less than 20 wt. % knots when fiberized under standard Kamas conditions. The fiberized sheets when airlaid produce fiber webs that exhibit desirable densification properties and softness properties.
    Type: Application
    Filed: March 14, 2003
    Publication date: January 6, 2005
    Inventor: Hugh West
  • Publication number: 20030208859
    Abstract: Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening agent.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 13, 2003
    Inventors: Amar N. Neogi, Hugh West, David L. Lee
  • Publication number: 20030045707
    Abstract: The present invention provides a polymer derived from a cellulosic, lignocellulosic, or polysaccharide material having superabsorbent properties. Methods for making the polymer and personal care absorbent products that incorporated the polymer are also provided.
    Type: Application
    Filed: August 5, 2002
    Publication date: March 6, 2003
    Applicant: Weyerhaeuser Company
    Inventors: Hugh West, John A. Westland
  • Publication number: 20030007164
    Abstract: A method of color printing is described in which only two transparent inks are used to reproduce a source image The original digitally encoded image in red, green and blue colors may be initially adjusted for contrast, brightness, color balance, and tonal value. This is then converted to cyan, magenta and yellow encoding. The two of these channels which best represent the dominant colors of original image are then selected. The critical colors of the original image to be reproduced with reasonable accuracy are determined and spot colors that best represent these are selected from an ink palette The spot colors are assigned to the selected channels to which they have the closest color relationship. These two channels are next superimposed to form a composite image and their greyscale values are adjusted to produce an image most closely resembling the desired final image. New positive separations are then made and inverted to negative images from which printing plates can be prepared.
    Type: Application
    Filed: June 22, 2001
    Publication date: January 9, 2003
    Inventors: David L. Lee, Hugh West
  • Patent number: 6500947
    Abstract: The present invention provides a polymer derived from a cellulosic, lignocellulosic, or polysaccharide material having superabsorbent properties. Methods for making the polymer and personal care absorbent products that incorporated the polymer are also provided.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: December 31, 2002
    Assignee: Weyerhaeuser Company
    Inventors: Hugh West, John A. Westland
  • Patent number: 6296737
    Abstract: The invention relates to cellulose fluff pulp products that are debondable into fluff with markedly lower energy input, to a process for making the products, and to absorbent products using the fluff Most of the pulp products show no reduction in liquid absorbency rate from that of untreated fiber and significantly higher rates than pulps treated with the usual debonding agents. The products are made by adhering fine non-cellulosic particles to the fiber surfaces using a retention aid. The fiber is preferably treated with the retention aid in an aqueous suspension for a sufficient time so that the retention aid is substantively bonded with little or none left free in the water. The fine particulate additive is then added and becomes attached and uniformly distributed over the fiber surfaces with very little particle agglomeration occurring. The fiber is most usually not refined or only very lightly refined before sheeting.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: October 2, 2001
    Assignee: Weyerhaeuser Company
    Inventors: Jian Wu, Hugh West, Terry M. Grant
  • Patent number: 6074524
    Abstract: The invention relates to cellulose fluff pulp products that are debondable into fluff with markedly lower energy input, to a process for making the products, and to absorbent products using the fluff. Most of the pulp products show no reduction in liquid absorbency rate from that of untreated fiber and significantly higher rates than pulps treated with the usual debonding agents. The products are made by adhering fine non-cellulosic particles to the fiber surfaces using a retention aid. The fiber is preferably treated with the retention aid in an aqueous suspension for a sufficient time so that the retention aid is substantively bonded with little or none left free in the water. The fine particulate additive is then added and becomes attached and uniformly distributed over the fiber surfaces with very little particle agglomeration occurring. The fiber is most usually not refined or only very lightly refined before sheeting.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: June 13, 2000
    Assignee: Weyerhaeuser Company
    Inventors: Jian Wu, Hugh West, Terry M. Grant
  • Patent number: 5906894
    Abstract: A multi-ply paperboard comprising at least one ply of conventional cellulose fibers and from about 0.1 to about 6 weight percent of a water-borne binding agent; and at least one ply containing up to 20% of chemically intra-fiber crosslinked cellulosic high-bulk fibers and from about 0.1 to about 6 weight percent of a water-borne binding agent. The water-borne binding agent may be a starch, a modified starch, a polyvinyl alcohol, a polyvinyl acetate, a polyethylene/acrylic acid copolymer, an acrylic acid polymer, a polyacrylate, a polyacrylamide, a polyamine, guar gum, an oxidized polyethylene, a polyvinyl chloride, a polyvinyl chloride/acrylic acid copolymer, an acrylonitrile/butadiene/styrene copolymer or polyacrylonitrile. A method for making the paperboard is disclosed.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: May 25, 1999
    Assignee: Weyerhaeuser Company
    Inventors: Hugh West, Amar N. Neogi, Dwight A. Dudley, II, Dwayne M. Shearer
  • Patent number: 5877097
    Abstract: A densified web of cellulose fibers has a high absorbent capacity and good wet strength. The web is produced by combining cellulose fibers with a bonding agent, activating the bonding agent, allowing it to contact the cellulose fibers, and thereafter deactivating the bonding agent. The web is thereafter compressed in a cooled state to form a densified web. The web exhibits an absorbent capacity superior to that of prior densified and bonded webs.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: March 2, 1999
    Assignee: Weyerhaeuser Company
    Inventors: Hugh West, Colin Elston, Fred B. Howard
  • Patent number: 5840787
    Abstract: A fiber/binding agent composition comprising: individualized chemically crosslinked high-bulk fibers comprising individualized fibers chemically intra-fiber crosslinked with a crosslinking agent that is a polycarboxylic acid or is selected from the group of urea derivatives consisting of methylated urea, methylated cyclic ureas, methylated lower alkyl substituted ureas, dihydroxy cyclic ureas, and methylated dihydroxy cyclic ureas, and mixtures thereof; and from about 0.1 to about 6 weight percent of a water-borne binding agent. The water-borne binding agent is selected from the group consisting of starch, a polyvinyl alcohol, a polyvinyl acetate latex, a polyethylene/acrylic acid copolymer, an acrylic acid polymer, an oxidized polyethylene, a polyvinyl chloride, a polyvinyl chloride/acrylic acid copolymer, an acrylonitrile/butadiene/styrene copolymer and polyacrylonitrile.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: November 24, 1998
    Assignee: Weyerhaeuser Company
    Inventors: Hugh West, Amar N. Neogi, Dwight Albert Dudley, II, Dwayne M. Shearer
  • Patent number: 5837627
    Abstract: A web of fibers is bound together by a bonding medium that has been activated by partially solubilizing the bonding medium with a solvent therefor. The fibers are insoluble in the bonding medium. As the bonding medium is partially solubilized, it becomes tacky and flows into contact with the fibers and with itself Thereafter, the solvent is absorbed by the bonding medium, allowing the bonding medium to resolidify and bond the fibers in a matrix, increasing the web strength.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: November 17, 1998
    Assignee: Weyerhaeuser Company
    Inventors: Donald D. Halabisky, Hugh West, Andre S. Hajnal, Terry M. Grant
  • Patent number: 5459181
    Abstract: A three-part dry blended soluble mixture which includes a water soluble hydroxyl group bearing polymer, a covalent crosslinking agent, and a catalyst is made into an aqueous solution which is then applied to any underlying material of choice. After drying, the crosslinked polymer forms a material that is completely insoluble in water, thereby serving as a binder or tackifier. One additive that may be included with the dry blend is wood fiber in an approximate weight ratio of nine to one and thereafter this dry blend is combined with water where the three-part dry blend goes into solution while the fibers remain in suspension. This composition is then spray applied to any underlying material and upon drying, there is formed a bonded fiber matrix which is relatively strong and which has many applications such as for use as an erosion control/seeding material, a covering for landfills, or a covering for other particulate materials stored in an outside location.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: October 17, 1995
    Assignee: Weyerhaeuser Company
    Inventors: Hugh West, Ezequeil Delgado-Fornue