Patents by Inventor Thomas J. Bonk

Thomas J. Bonk 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).

  • Crosslinked pressure-sensitive adhesive
    Patent number: 4751269
    Abstract: A crosslinked pressure-sensitive high shear adhesive is provided which is comprised of:(a) an acrylate terpolymer comprised of(i) at least one alkyl acrylate wherein the alkyl group has at least 5 carbon atoms and wherein a major portion of the alkyls have an alkyl group having from 5 to 12 carbon atoms;(ii) a second alkyl acrylate wherein the alkyl group has from 1 to 4 carbon atoms;(iii) at least one copolymerizable monoethylenically monomer selected from the group consisting of acrylic acid, methacrylic acid and itaconic acid; and(b) an amine formaldehyde condensate, in an amount of from about 0.8 to 10 percent by weight of the terpolymer.The pressure sensitive adhesive is particularly useful when it is combined with a reinforcing web and a reinforcing filler and applied to a carrier to form an adhesive tape. The adhesive is particularly useful in adhering the edges of a heat-recoverable sheet to one another to secure the closure during the closure process.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: June 14, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas J. Bonk, Tsung-I Chen, Patricia M. Olson, Douglas E. Weiss
  • Heat-recoverable closure with crosslinked pressure-sensitive adhesive
    Patent number: 4731273
    Abstract: A heat-recoverable closure with a crosslinked pressure-sensitive adhesive is provided. The closure member is comprised of a heat-recoverable sheet and a layer of crosslinked pressure-sensitive adhesive, which maintains the closure of the closure member having the recovery process. The combination of a high surface energy heat-recoverable sheet and the crosslinked pressure-sensitive adhesive yield an article having excellent performance as a closure member.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: March 15, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas J. Bonk, Tsung-I Chen, Patricia M. Olson, Douglas E. Weiss
  • Polyolefin substrate coated with acrylic-type normally tacky and pressure-sensitive adhesive and a method of making same
    Patent number: 4563388
    Abstract: Acrylic-type normally tacky and pressure-sensitive adhesives are firmly bonded to polyolefin substrates that have been primed by coating with a monomer composition and subjecting the coated substrate to actinic radiation to effect graft-polymerization.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: January 7, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas J. Bonk, J. Thomas Simpson