Patents by Inventor George A. Papsin, Jr.

George A. Papsin, Jr. 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).

  • N-methylol-based polyacrylic dispersion and polyalkyleneimine adhesives for film laminating
    Patent number: 6436225
    Abstract: The present invention relates to film laminating adhesive (FLA) compositions comprising an N-methylol-based polyacrylic dispersion and polyalkyleneimine (PAI) and laminates thereof, a method for bonding substrates together using these compositions and a method for preparing these compositions.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: August 20, 2002
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventor: George A. Papsin, Jr.
  • Water-based pressure sensitive adhesives having enhanced characteristics
    Patent number: 6281298
    Abstract: The present invention relates to water-based pressure sensitive adhesives comprising at least one water-based polymer and at least one aminoplast resins such as melamine-formaldehyde resins, urea-formaldehyde resins, alkylated melamine-formaldehyde resins and combinations thereof. More particularly, the invention relates to water-based pressure sensitive adhesives comprising the reaction product of aqueous polymer dispersions and water dispersible melamine-formaldehyde resins. The pressure sensitive adhesives are characterized as having enhanced bonding characteristics including loop tack, peel strength, and shear strength making them particularly useful for the manufacture of dry-bonded laminates, tapes, labels, medical patches and devices, flexible packages, furnace ducts, exterior insulating finish system and the like.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: August 28, 2001
    Assignee: H. B. Fuller Licensing & Financing Inc.
    Inventor: George A. Papsin, Jr.
  • A redispersible core-shell polymer powder
    Patent number: 5403894
    Abstract: Redispersible polymer powders made by core-shell polymers having an alkali-soluble emulsion polymer shell and an aqueous-insoluble emulsion polymer core wherein the core and the shell polymers are chemically grafted by utilizing a polyfunctional compound. The core-shell polymers are produced by a two-stage sequential emulsion polymerization process in which an alkali-insoluble emulsion polymer core is polymerized in the presence of an alkali-solubilized emulsion polymer. When the core-shell polymer powders of this invention are employed as a cement modifier, improvements in the powder physical properties and cement mortar properties are realized.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: April 4, 1995
    Assignee: Rohm and Haas Company
    Inventors: Min-Chi Tsai, George A. Papsin, Jr., Shang-Jaw Chiou
  • Latex barrier tiecoat for use with mastic coatings
    Patent number: 5059456
    Abstract: A method for improving the quality of a mastic coating system by using a latex barrier tiecoat which is composed of a water-insoluble latex polymer and a multivalent metal ion. The tiecoat is applied to a substrate and then a mastic coating is applied to the tiecoat to yield a mastic coating system having excellent resistance to blistering when the mastic coating system is exposed to long-term ponded water.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: October 22, 1991
    Assignee: Rohm and Haas Company
    Inventors: Gary R. Larson, George A. Papsin, Jr., Donald A. Winey