Patents by Inventor Francis W. Brown

Francis W. Brown 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).

  • Method for removing monomer from an acrylate adhesive by reaction with a scavenger monomer
    Patent number: 4737577
    Abstract: An improvement in acrylate polymer pressure sensitive adhesive compositions consists of using a reactive scavenging monomer to remove objectionable residual monomer by copolymerization to form a non-objectionable copolymer.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: April 12, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Francis W. Brown
  • Removable pressure-sensitive adhesive tape
    Patent number: 4629663
    Abstract: The adhesive layer of the novel pressure-sensitive adhesive tape comprises a polymer of a terminally unsaturated vinyl monomer such as isooctyl acrylate and an emulsifier monomer such as sodium styrene sulfonate. Preferably, the adhesive layer also contains a small amount of a noncationic external emulsifier such as sodium dodecylbenzene sulfonate. Although the tape has excellent adhesive properties, it is removable from a variety of surfaces after one hour at 120.degree. C. and so is useful for purposes such as automotive masking tape.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: December 16, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Francis W. Brown, Louis E. Winslow
  • Pressure-sensitive adhesive tape employing moisture resistant acrylate-base copolymer adhesive
    Patent number: 4074004
    Abstract: Normally tacky and pressure-sensitive adhesive tapes, labels, etc. which, when adhered to dry fibrous webs, remain firmly attached when the web and adhesive are thereafter exposed to moist conditions. These performance characteristics, which are not found when conventional pressure-sensitive adhesives are used, result from employing acrylate-based copolymer adhesives made from specific monomers and having inherent viscosities related to the monomers employed.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: February 14, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George F. Bateson, Francis W. Brown, Steven M. Heilmann