Patents Represented by Attorney, Agent or Law Firm Harold C. Knecht
  • Patent number: 7854904
    Abstract: The present invention provides a mounting mat (30) for mounting a pollution control monolith (20) in a pollution control device (10). The mounting mat has a bulk density of 0.12 to 0.3 g/cm3 and comprises (i) a layer of chopped magnesium aluminium silicate glass fibers and (ii) a layer of ceramic fibers obtainable from a sol-gel process. Preferably, the layer of chopped magnesium aluminium silicate glass fibers and the layer of ceramic fibers define opposite major surfaces of the mat. The present invention further provides a pollution control device (10), comprising a pollution control monolith (20) arranged in a metallic casing (11) with the mounting mat (30) disposed between the metallic casing (11) and pollution control monolith (20).
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: December 21, 2010
    Assignee: 3M Innovative Properties Company
    Inventor: Richard P. Merry
  • Patent number: 6506494
    Abstract: A one-part curable epoxy adhesive composition is provided. The adhesive comprises curable epoxy resin, a latent curative system comprising (a) at least one first curative encapsulated in thermoplastic polymeric microcapsules and (b) a second latent curative admixed in the curable epoxy resin, and sufficient particulate thermoplastic polymeric material to at least partially regionally plasticize the cured epoxy resin wherein up to all of the particulate thermoplastic polymeric material may be provided by the walls of the microcapsules. A method of curing the adhesive by heating the composition is also provided. A joint made by adhering members together with the adhesive composition and a method of making the joint are also provided.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: January 14, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Frank A. Brandys, Michael J. Irwin, Kent S. Tarbutton
  • Patent number: RE37036
    Abstract: A polymer blend comprising (a) a modified block copolymer comprising (i) a polystyrene block and (ii) a polydiene block or a hydrogenated polydiene block, said polydiene block or hydrogenated polydiene block being modified to contain an average of one or more carboxyl groups; and (b) a polymer comprising a polymerization reaction product of two or more mono-ethylenically unsaturated monomers in which (i) at least one of the monomers is an acrylic or methacrylic acid ester of a non-tertiary alcohol having 1 to 14 carbon atoms, inclusive and (ii) at least one of the monomers has carboxylic acid functionality and is present in an amount ranging from about 1 to about 15 parts by weight, based on 100 parts by weight of polymer (b), and a method of priming a substrate comprising applying the blend to the substrate.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: January 30, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: James D. Groves