Patents by Inventor Richard E. Bennett

Richard E. Bennett 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).

  • Solventless compounding and coating of non-thermoplastic hydrocarbon elastomers
    Patent number: 5550175
    Abstract: A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and processing zones. The processing zones masticate and mix materials in them. Non-thermoplastic elastomers having high molecular weight may be readily compounded into adhesives in the process.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: August 27, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy D. Bredahl, Harold Leverty, Robert L. Smith, Richard E. Bennett, David J. Yarusso, Daniel C. Munson, Anthony R. Plepys
  • Solventless compounding and coating of non-thermoplastic hydrocarbon elastomers
    Patent number: 5539033
    Abstract: A solvent-free hot melt process, for preparing a non-thermosettable, pressure-sensitive adhesive from a tackified non-thermoplastic hydrocarbon elastomer. The process employs a continuous compounding device that has a sequence of alternating conveying and processing zones. The processing zones masticate and mix materials in them. Non-thermoplastic elastomers having high molecular weight may be readily compounded into adhesives in the process.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: July 23, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy D. Bredahl, Harold W. Leverty, Robert L. Smith, Richard E. Bennett, David J. Yarusso, Daniel C. Munson, Anthony R. Plepys
  • Removable pressure-sensitive adhesive tape
    Patent number: 4645711
    Abstract: The pressure-sensitive adhesive layer of the novel tape, like that of Silver U.S. Pat. No. 3,922,464, comprises a copolymer of alkyl acrylate such as isooctyl acrylate and a small amount of emulsifier monomer. The novel tape differs from that of Silver by incorporating tackifier resin, thus better resisting lifting forces at elevated temperatures while also being cleanly removable.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: February 24, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Louis E. Winslow, Richard E. Bennett, Thomas S. Overstreet
  • Dry transfer article
    Patent number: 4454179
    Abstract: A dry transfer article comprising a carrier film bearing a graphic design in the form of one or more layers of ink and an actinic radiation responsive adhesive overlapping the design, the ink serving as a mask to actinic radiation such that only adhesive in non-ink areas is exposed to radiation creating a differential adhesive tack which allows the article to be positioned on the substrate and the carrier film and exposed adhesive to be selectively removed leaving the graphic design and underlying unexposed adhesive bonded to the substrate.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: June 12, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard E. Bennett, Donald V. Flatt
  • Pressure-sensitive adhesive susceptible to ultraviolet light-induced detackification
    Patent number: 4286047
    Abstract: "Release on demand" pressure-sensitive adhesives and tapes which are readily detackifiable by exposure to actinic radiation. The adhesive system has an oxirane ring-bearing component blended thereinto (or preferably reacted therewith) to achieve an adhesive epoxy equivalent value of 400-900, preferably 450-700. The adhesive system also includes an effective amount of ionic photoinitiator capable of promoting the polymerization of oxirane rings.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: August 25, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard E. Bennett, Mary A. Hittner