Patents by Inventor Robert R. Charbonneau

Robert R. Charbonneau 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).

  • Patent number: 4699843
    Abstract: Pressure-sensitive adhesives are prepared by the simultaneous polymerization of minor amounts of at least one alkenyl azlactone monomer and at least one arylic-functional carboxylic acid monomer, or precursors thereof, with a major amount of at least one acrylic monomer. The pressure-sensitive adhesives, after application to a substrate, will significantly increase in adhesion to the resultant bonded substrate after they are in the bonded configuration.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: October 13, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert R. Charbonneau, Steven M. Heilmann, Jerald K. Rasmussen, Michael L. Tumey
  • Patent number: 4619867
    Abstract: Pressure-sensitive adhesives are prepared by the simultaneous polymerization of minor amounts of at least one alkenyl azlactone monomer and at least one arylic-functional carboxylic acid monomer, or precursors thereof, with a major amount of at least one acrylic monomer. The pressure-sensitive adhesives, after application to a substrate, will significantly increase in adhesion to the resultant bonded substrate after they are in the bonded configuration.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: October 28, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert R. Charbonneau, Steven M. Heilmann, Jerald K. Rasmussen, Michael L. Tumey
  • Patent number: 4404246
    Abstract: Pressure-sensitive adhesive tape, the adhesive layer of which is a copolymer of alkyl acrylate such as isooctyl acrylate and an acid such as acrylic acid and which differs from the prior art in its high acid content and by including a small amount of lower-alkoxylated amino formaldehyde condensate as a latent crosslinking agent. The adhesive does not become crosslinked until it is heated. After the tape has been applied and heated to crosslink the adhesive, the resultant bonds have outstanding resistance to peel forces combined with surprisingly good resistance to shear forces, especially at elevated temperatures.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: September 13, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert R. Charbonneau, Gaylord L. Groff
  • Patent number: 4128984
    Abstract: After priming the purlins of a post frame building with a blend of rubbery block copolymer and compatible tackifier resin, double-coated foam-backed pressure-sensitive adhesive tape is applied to the primed surfaces to secure the roof panels, which pressure-sensitive adhesive comprises rubbery block copolymer and compatible tackifier resin.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: December 12, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert R. Charbonneau, Robert M. Spatafore
  • Patent number: D259333
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: May 26, 1981
    Inventor: Robert R. Charbonneau