Patents Assigned to Material Science Corporation
  • Patent number: 6849215
    Abstract: A method of making polymeric particulates wherein polymeric scrap material, virgin polymeric material and mixtures thereof are supplied to intermeshing extruder screws which are rotated to transport the polymeric material along their length and subject the polymeric material to solid state shear pulverization and in-situ polymer compatibilization, if two or more incompatible polymers are present. Uniform pulverized particulates are produced without addition of a compatibilizing agent. The pulverized particulates are directly melt processable (as powder feedstock) and surprisingly yield a substantially homogeneous light color product.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: February 1, 2005
    Assignee: Material Sciences Corporation
    Inventor: Klementina Khait
  • Patent number: 6621658
    Abstract: There is provided a vibration damping structure having an inner metal skin and an outer metal skin and a damping layer secured between the metal skins, with each of said metal skins having a cut therein. The damping layer is a viscoelastic material which is capable of adhering to the metal skins. The cuts are circular, encompassing and isolating an area wherein the vibration damping structure is connected to another body. The cuts extend through the inner metal skin and the outer metal skin to the damping layer.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: September 16, 2003
    Assignee: Material Sciences Corporation
    Inventor: Ahid Nashif
  • Patent number: 6589607
    Abstract: A method and apparatus for coating sheet material with thermoset material. In certain embodiments, first and second different induction furnaces are provided, with the coated sheet first proceeding into and through the first furnace, and then into and through the second furnace. The first furnace may be maintained at a temperature less than the second furnace, so that out-gassing of volatile materials is achieved in the first furnace and thereafter heightened cross-linking conversation rates are achieved in the second furnace at higher temperature(s).
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: July 8, 2003
    Assignee: Material Sciences Corporation
    Inventors: Douglas E. Edwards, Mark R. Monterastelli
  • Patent number: 6465110
    Abstract: A laminate comprises first and second metal layers, and a metallic felt layer disposed between the metal layers and attached to each to provide vibrational damping and thermal insulation. In one embodiment, the layers are tubular in shape and form an automotive exhaust pipe. In another embodiment the layers are annular in shape and form a disk of a brake rotor. In another embodiment the laminate is a damping structure for a brake pad assembly, wherein the first metal layer may either be the backing plate of the brake pad assembly or be attached to the backing plate. The damping structure may include additional metallic felt and metal layers. Various modes of attachment of the metallic felt layer to the metal layers are disclosed. The metallic felt layer may be completely surrounded by metal.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: October 15, 2002
    Assignee: Material Sciences Corporation
    Inventors: Daniel E. Boss, Richard K. Williams, Scott R. Dobrusky
  • Patent number: 6202462
    Abstract: A noise-damping composite is formed by providing a laminate of two metal layers separated by a much thinner viscoelastic layer which has an initial thickness of at least 1 mil., and then cold rolling the laminate to proportionally permanently reduce the thickness of each layer, until the thickness of the viscoelastic layer is less than 1 mil. and preferably less than 0.5 mil. The cold rolling may be through a set of adjustable rollers, and may be done in multiple passes with the rollers adjusted for each pass to further reduce the thickness. Alternatively, the laminate may be fed successively through a series of roller sets designed to successively reduce the thickness of the laminate.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: March 20, 2001
    Assignee: Material Sciences Corporation
    Inventors: Richard M. Hansen, Edward J. Vydra
  • Patent number: 6197114
    Abstract: A method and system are provided for adjusting a discharge width of a powder feeder. The system includes a supply hopper that is spaced from the powder feeder. The powder feeder includes a receiving opening and a discharge opening and at least one adjustable wall. Preferably, two adjustable walls are provided. Movement of the two adjustable walls provides variations in the width of the discharge opening and therefore facilitates use of the powder feeder on target volumes or target areas having different widths. A rotatable auger brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder. The powder feeder is particularly well-suited for use in a coating apparatus, as well as a dual-side coating apparatus.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: March 6, 2001
    Assignee: Material Sciences Corporation
    Inventor: Phillip Rodenberger
  • Patent number: 6109481
    Abstract: A powder atomizer comprises a pan, and an element journaled for rotation about an axis. The pan partially surrounds the element, and therewith defines a venturi into which powder is fed. The venturi has an inlet and a spaced outlet. A motor rotates the element within the pan in excess of the speed required to throw powder from the element by centrifugal force and draws gas through the venturi, so that powder fed into the element is atomized and produces a uniform cloud of particulate material. A nonconductive element minimizes the electrical charge on the pan, and thereby the resulting agglomerization of particulate material at the outlet.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: August 29, 2000
    Assignee: Material Sciences Corporation
    Inventors: George R. Alexander, Eduardo C. Escallon
  • Patent number: 5996855
    Abstract: A method and system for maintaining a uniform volume of powder in a powder feeder provided. The system includes a supply hopper that is spared from a powder feeder. The powder includes a receiving opening and a discharge opening. A rotatable brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: December 7, 1999
    Assignee: Material Sciences Corporation
    Inventors: George R. Alexander, William H. Brown, Eduardo C. Escallon
  • Patent number: 5955149
    Abstract: A release coating composition and a method of forming a release coating on a bakeware substrate using the coating composition is provided. The release coating composition includes (i) an acrylic resin, (ii) an epoxy resin, and (iii) a silicone release agent. The release coating composition can be formed in two parts, a base coat composition and a top coat composition. The base coat composition may include an epoxy resin, an acrylic resin, a color additive and appropriate solvents. The top coat composition may include an acrylic resin, an epoxy resin, a silicone release agent, a silicone resin and appropriate solvents. Each of the parts can be separately applied to the bakeware substrate and heated to form a release coating. In some cases, the top coat composition alone may only be applied if fabrication of the coated substrate will not be severe.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: September 21, 1999
    Assignee: Material Sciences Corporation
    Inventor: Edmund J. Kuziemka
  • Patent number: 5851342
    Abstract: An apparatus and a method for bonding a laminate formed of at least two layers of sheet material superimposed on one another with adhesive therebetween and moved along a path. The apparatus includes a first laminator having an upper plate assembly having a first low-friction laminate-contacting surface for contacting a first layer of the laminate, and an upper heat exchanger thermally coupled to the upper plate assembly. The first laminator also includes a lower plate assembly having a second low-friction laminate-contacting surface for contacting a second layer of the laminate, wherein the first and second laminate-contacting surfaces are disposed in opposed relationship for accommodating passage of the layers of the laminate therebetween, and a lower heat exchanger thermally coupled to the lower plate assembly.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: December 22, 1998
    Assignee: Material Sciences Corporation
    Inventors: Edward J. Vydra, Timothy A. Brinner, Mark R. Monterastelli, Richard M. Hansen
  • Patent number: 5296310
    Abstract: A hybrid structural material combines high thermal conductivity and pre-determined mechanical properties compatible with adjacent or attached materials. It has three elements: (1) a non-structural, high thermal conductivity core material which defines the thermal conductivity of the hybrid structural material; (2) a pair of face sheets, which form opposing surfaces of the hybrid structural material and help to define its mechanical properties, disposed on opposite sides of the core material to create a face sheet-core material-face sheet sandwich construction; and (3) a frame substantially surrounding the core material and bonded to the face sheets for helping to define (along with the face sheets) the mechanical properties of the hybrid structural material.The interfaces between the face sheets and the core material allow physical contact, but prevent structural interaction, between the face sheets and the core material.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: March 22, 1994
    Assignee: Materials Science Corporation
    Inventors: John J. Kibler, Thomas G. Cassin
  • Patent number: 4837065
    Abstract: A fiber reinforced composite structure having a fiber reinforcing member and a hardened matrix material. The fiber reinforcing member, or fabric, has portions which protrude substantially out of the plane of the fabric to facilitate the snugged nesting of laminated fabrics in the construction of a fiber reinforced composite structure.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: June 6, 1989
    Assignee: Materials Sciences Corporation
    Inventor: Norris F. Dow
  • Patent number: 4544692
    Abstract: Fast curing resin coating compositions for coating metal surfaces and a one-step method are described. The coatings comprise a high molecular weight epoxy resin, although a portion thereof may be low molecular weight, an effective amount of a cross-linking agent for the epoxy resin, a polysiloxane resin system, an effective amount of a curing agent for the polysiloxane fluid system, a fluorocarbon polymer, and the balance being suitable solvents. The coatings are applied in one-step and dry in less than one minute and may be formed into various shapes and forms useful for stovetop cookware.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: October 1, 1985
    Assignee: Material Sciences Corporation
    Inventor: Edmund J. Kuziemka
  • Patent number: 4537800
    Abstract: Fast curing resin coating compositions for coating metal surfaces and a one-step method are described. The coatings comprise a high molecular weight epoxy resin, although a portion thereof may be low molecular weight, an effective amount of a cross-linking agent for the epoxy resin, a polysiloxane resin system, an effective amount of a curing agent for the polysiloxane fluid system, a fluorocarbon polymer, and the balance being suitable solvents. The coatings are applied in one-step and dry in less than one minute and may be formed into various shapes and forms useful for stovetop cookware.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: August 27, 1985
    Assignee: Material Sciences Corporation
    Inventor: Edmund J. Kuziemka
  • Patent number: 4526817
    Abstract: Steel product in coil form such as sheet steel is uncoiled, then preheated, continuously transported through a lead bath containing chromium, then cooled, and finally recoiled. When the coiled steel does not have titanium, titanium is included in the bath in order to improve the corrosion resistance of the final product.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: July 2, 1985
    Assignees: Material Sciences Corporation, Ray J. Van Thyne, John J. Rausch
    Inventors: John J. Rausch, Russell F. Novy
  • Patent number: 4476264
    Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a low molecular weight methylated melamine-formaldehyde resin, an epoxy resin, such as a bisphenol-epichlorohydrin resin, a silicone fluid and an organopolysiloxane release resin, with a zing-iron organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: October 9, 1984
    Assignee: Material Sciences Corporation
    Inventors: Frank D. Graziano, Edmund J. Kuziemka
  • Patent number: 4417006
    Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a high molecular weight epoxy resin, an etherified resol phenolic resin, a silicone fluid and an organopolysiloxane release resin, with an zinc-iron organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: November 22, 1983
    Assignee: Material Sciences Corporation
    Inventors: Frank D. Graziano, Edmund J. Kuziemka
  • Patent number: 4394422
    Abstract: Two ferrous-based components are bonded together to form a bonded structure and simultaneously a layer is diffused into the surfaces of the components. The process involves first placing the components in juxtaposition, and contacting the juxtaposed components with a molten lead bath having at least one diffusing element therein. One component may be a corrugated sheet and the other may be an uncorrugated or less corrugated sheet, the sheets being in the form of helixes interposed in each other to create a substantial number of fold lines being in contact with the surface of the uncorrugated sheet. Alternately, a sheet with projections may be used in place of the corrugated sheet.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: July 19, 1983
    Assignees: Ray J. Van Thyne, John J. Rausch, Material Sciences Corporation
    Inventors: Ray J. Van Thyne, John J. Rausch
  • Patent number: 4372995
    Abstract: Predetermined diffusing elements such as chromium and/or aluminum are diffused into the surface of a ferrous-based part while preventing, or at least minimizing, bonding of portions of such part to each other or to a fixture with which the part is processed, by constructing the fixture of a barrier material or placing a barrier layer between the member and the part. The barrier has a composition to substantially preclude diffusion therein of the predetermined element and that is capable of withstanding a molten-lead alloy bath. Then the part is contacted by a molten alloy bath consisting essentially of lead and the diffusing elements. Thereafter, the part is separated from the member. The process finds particular use when the part is coiled sheet steel, in which case adjacent flights of coil are spaced by separator means which is made of a barrier material or carries a barrier layer.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: February 8, 1983
    Assignees: John J. Rausch, Ray J. Van Thyne, Material Sciences Corporation
    Inventors: John J. Rausch, Ray J. Van Thyne
  • Patent number: 4369268
    Abstract: Fast-curing resin compositions for coating metal surfaces are described. They comprise a high molecular weight epoxy resin, a low molecular weight epoxy resin, an etherified resol phenolic resin, a silicone fluid and an organopolysiloxane release resin, with an organometallic curing agent and a solvent. In addition to curing rapidly (one minute or less), the resin compositions are flexible and metal sheets coated therewith can be pressed or bent into various shapes and forms without the resin coating cracking or chipping.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: January 18, 1983
    Assignee: Material Sciences Corporation
    Inventors: Frank D. Graziano, Edmund J. Kuziemka