Patents Examined by Melanie Bagwell-Bissett
  • 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: 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: 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