Patents Examined by Melanie Bagwell
  • Patent number: 6399714
    Abstract: A crosslinked polyamide material and a process for preparing the crosslinked polyamide material are disclosed. The crosslinked polyamide material comprises a crosslinked chemical combination of (1) a polyamide of the formula: wherein n is between about 50 and 10,000, wherein each R is between 1 and 50 carbon atoms alone and is optionally substituted with heteroatoms, oxygen, nitrogen, sulfur, or phosphorus and combinations thereof, wherein multiple of the R are in vertically aligned spaced relationship along a backbone forming the polyamide, and wherein two or more of the R contain an amino group; and (2) a crosslinking agent containing at least two functional groups capable of reacting with the amino groups of the polyamide. In one embodiment of the invention, the crosslinking agent is an aliphatic or aromatic isocyanate compound having 2 or more —N═C═O groups.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: June 4, 2002
    Assignee: Michigan Biotechnology Institute
    Inventors: Zhi H. Huang, William F. McDonald, Stacy C. Wright, Andrew C. Taylor
  • Patent number: 6399666
    Abstract: The invention relates to a process for forming an integrated circuit device comprising (i) a substrate; (ii) metallic circuit lines positioned on the substrate and (iii) a dielectric material positioned on the circuit lines. The dielectric material comprises porous organic polysilica.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: June 4, 2002
    Assignee: International Business Machines Corporation
    Inventors: Craig Jon Hawker, James Lupton Hedrick, Andreas Heise, David Mecerreyes, Robert Dennis Miller, Olof Mikael Trollsås
  • Patent number: 6391931
    Abstract: A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: May 21, 2002
    Inventors: Mark David Gehlsen, David Loren Vall, Craig Allen Perman, Bonnie Weiskopf Albrecht
  • Patent number: 6380273
    Abstract: The invention relates to a process for the production of flame-resistant flexible polyurethane foams having a low susceptibility to core discoloration, which comprises using hydroxyalkyl phosphonates as halogen-free flame retardants and as core discoloration inhibitors. The invention furthermore relates to the use of hydroxyalkyl phosphonates as halogen-free flame retardants for the production of flame-resistant flexible polyurethane foams having a low susceptibility to core discoloration. Finally the invention also relates to a flame resistant flexible polyurethane foam having a low susceptibility to core discoloration which comprises hydroxyalkyl phosphonates as halogen-free flame retardants and as core discoloration inhibitor.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 30, 2002
    Assignee: Clariant GmbH
    Inventors: Christian Eilbracht, Martin Sicken
  • Patent number: 6362245
    Abstract: A porous copolymer particle having a particle size of from 0.1 to 2,000 &mgr;m and a permanent pore size of from 2 to 800 nm comprising (i) a monomer containing from 5 to 60 wt % of a monomer (A) selected from N-vinylcarboxylic acid amides represented by formula (I): wherein R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrogen atom, a C1-C8 alkyl group, a phenyl group or a phenyl group substituted with a methyl group or an ethyl group and (ii) from 40 to 95 wt % of a copolymerizable monomer (B) which contains a crosslinking monomer.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: March 26, 2002
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Ryuji Takahashi, Hiroshi Suzuki, Kuniaki Shimbo
  • Patent number: 6337354
    Abstract: An ink wastage absorber is made from a flexible polyurethane foam having an air-permeability of 1.0 cc/cm2/sec or more, or is made from a flexible polyurethane foam produced by using a foamable raw material containing a polyol, an isocyanate, a catalyst, and a foaming agent, wherein the polyurethane foam is impregnated with a surface active agent. An ink supporter includes an ink permeation member provided at a portion corresponding to a printer head and an ink absorbing member being in contact with the ink permeation member.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: January 8, 2002
    Assignee: Bridgestone Corporation
    Inventors: Yoshihiro Katsumata, Hideya Kinoshita
  • Patent number: 6326082
    Abstract: According to the present invention there is provided a laminating element comprising a transparent support coated with a thermally non-reversible layer comprising an ethylene-acrylic acid copolymer, a first polyurethane polymer and a second polyurethane polymer, said layer having a pH of at least 10 and containing a metallic or an amphoteric cation.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: December 4, 2001
    Assignee: Agfa-Gevaert
    Inventors: Leo Vermeulen, Michel Boulonne, Walther Wouters, Diane Vertruyen, Huub Van Aert
  • Patent number: 6316510
    Abstract: A foamable binder composition and methods for producing the same are provided. The foamable binder composition of the present invention comprises a corrosion preventing agent, a main adhesion material, a surfactant capable of inducing formation of foams, and water. In addition, a fast wet tack material may also be present. In one application, the foamable binder composition is used with insulating materials in thermally insulating a building.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: November 13, 2001
    Inventor: Henry Sperber
  • Patent number: 6310174
    Abstract: This invention concerns a composition containing a dimerized or trimerized fatty acid amide of a primary alkanolamine that remains clear of suspended solids during storage, making mixtures containing the additive particularly useful to the metalworking industry. The amide may be formed by the condensation of a primary alkanolamine and a dimerized or trimerized fatty acid. When added to an amide of a primary alkanolamine and fatty acid containing a single carboxylic acid group, these molecules are able to prevent crystallization of the amide mixture.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: October 30, 2001
    Assignee: Huntsman Petrochemical Corporation
    Inventor: Karl E. Griswold
  • Patent number: 6271273
    Abstract: Porous organo polysilica dielectric materials having low dielectric constants useful in electronic component manufacture are disclosed along with methods of preparing the porous organo polysilica dielectric materials. Also disclosed are methods of forming integrated circuits containing such porous organo polysilica dielectric materials.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: August 7, 2001
    Assignee: Shipley Company, L.L.C.
    Inventors: Yujian You, Angelo A. Lamola, Robert H. Gore, Michael K. Gallagher, Nikoi Annan
  • Patent number: 6265455
    Abstract: A foamed ionomer polymer comprising metal ions pertaining to the IA, IIA, or IIB Group of the Periodic Table, and a crystalline or semicrystalline graft copolymer where the backbone polymer chain of the graft copolymer is a polymer of an olefin selected from ethylene and C3-C10 &agr;-olefins, and the grafted chains comprise monomers containing at least one functional group selected from carboxylic groups and their derivatives.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: July 24, 2001
    Assignee: Montell North America Inc.
    Inventor: Vittorio Braga
  • Patent number: 6258865
    Abstract: A closed-cell polymeric foam is provided which is formed using oil-containing furnace black as an insulation enhancer. Other foam properties (for example, cell sizes, densities, limiting oxygen index performance) are similar to those obtained with the use of thermal blacks.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: July 10, 2001
    Assignee: The Dow Chemical Company
    Inventor: Bharat I. Chaudhary
  • Patent number: 6169157
    Abstract: This invention relates to a process for producing polyester-polyurethane compositions, and to the stabilization thereof in relation to hydrolytic ageing phenomena by an active ingredient combination comprising compounds containing carbodiimides with lactone derivatives, to mouldings produced therefrom and to the use thereof for semi-rigid, solid and/or cellular mouldings.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: January 2, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erhard Michels, Klaus Pleiss, Hans-Norbert Dick