Patents by Inventor Larry G. Bourland

Larry G. Bourland 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: 4855179
    Abstract: Superabsorbent articles in the form of soft, nonwoven fibrous webs are produced from aqueous fiber-forming polymer solutions by forming the polymer into water soluble filaments, contacting the filaments with a primary air stream having a velocity effective to attenuate and to partially dry the filaments, contacting the attenuated filaments with a secondary air stream having a velocity effective to fragment the filaments into fibers and to transport the fibers to a web-forming zone while also further attenuating and drying the fibers, collecting the fibers in reticulated web-form in the web-forming zone and curing the web to a water insoluble state. The temperature and air stream velocities are controlled with respect to ambient humidity and water content of the fiber during the fiber and web formation such that the fibers are collected without sticking. Collection is preferably on a wire belt followed by transport through a curing oven to compacting rolls and web take-up.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: August 8, 1989
    Assignee: Arco Chemical Technology, Inc.
    Inventors: Larry G. Bourland, Robert J. DiLullo, Kimberly E. Ritrievi, Jon R. Valbert
  • Patent number: 4696972
    Abstract: A polymeric molding composition containing a polycarbonate resin, a styrenic copolymer and a methylmethacrylate-butadiene-styrene polymer is disclosed. The molding compositions of this invention exhibit excellent impact strength and can be molded over a wide range of processing conditions.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: September 29, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4665118
    Abstract: A vinyl molding compound having a high melt flow rate propylene-based polymer and calcium stearate incorporated thereinto exhibits reduced processing energy upon molding.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: May 12, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4530965
    Abstract: A polymeric molding composition containing a polycarbonate resin, a styrenic copolymer and a methylmethacrylate-butadiene-styrene polymer is disclosed. The molding compositions of this invention exhibit excellent impact strength and can be molded over a wide range of processing conditions.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: July 23, 1985
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4501848
    Abstract: The incorporation of a high melt flow rate propylene-based polymer additive into a vinylidene chloride copolymer-based molding compound serves to retard the fusion rate of the resulting compound during processing.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: February 26, 1985
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4501849
    Abstract: The incorporation of a high melt flow rate propylene-based polymer additive into a CPVC molding compound serves to retard the fusion rate of the CPVC compound during processing.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: February 26, 1985
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4501850
    Abstract: The incorporation of a high melt flow rate propylene-based polymer additive into a PVC molding compound serves to retard the fusion rate of the PVC compound during processing.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: February 26, 1985
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4388443
    Abstract: Disclosed are moldable polyblends comprising a polylactone, a polycarbonate and a rubber-modified styrenic copolymer.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: June 14, 1983
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4377664
    Abstract: A thermoplastic molding composition which comprises a mixture of two thermoplastic synthetic polymers, which are at least partially miscible with one another, is disclosed. In one embodiment, the molding composition comprises a mixture of styrene-citraconic anhydride copolymer and methyl-methacrylate-styrene copolymer.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: March 22, 1983
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4371666
    Abstract: A flame retardant blend of thermoplastic polymers comprises a blend of 1-99 percent by weight of a chlorinated polyvinyl chloride resin and 1-99 percent by weight of a copolymer of styrene and an ethylenically unsaturated dicarboxylic acid monomer, the blend having a heat distortion temperature in excess of 200.degree. F., and a single glass transition property. Such blends which contain at least 40 percent by weight of said chlorinated polyvinyl chloride resin and an oxygen index of at least 0.25 also exhibit flame retardant properties.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: February 1, 1983
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Patent number: 4361508
    Abstract: A cable filler composition comprises a mixture of mineral oil, a styrene-ethylene butylene-stryene block copolymer, and about 2-6 percent by weight of a thermoplastic polymer comprising an isotactic, crystalline polypropylene copolymer containing 0.1-4% by weight of an olefinic comonomer, the copolymer having a molecular weight of between 20,000 and 40,000.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: November 30, 1982
    Assignee: Arco Polymers, Inc.
    Inventor: Larry G. Bourland
  • Patent number: 4361507
    Abstract: A cable filler composition comprises a mixture of a mineral oil, a styrene-ethylene-butylene-stryene block copolymer and 2 to 6 weight percent of an isotactic, crystalline polypropylene, the polypropylene having an average molecular weight of between 20,000 and 50,000.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: November 30, 1982
    Assignee: Arco Polymers, Inc.
    Inventor: Larry G. Bourland