Patents by Inventor Armin J. Paff

Armin J. Paff 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).

  • Publication number: 20130172464
    Abstract: Processing aides for extrusion and/or injection molding are described. In particular, nanoparticle processing aides, including surface-modified nanoparticle processing aides are described. Methods of using such nanoparticle processing aides in extrusion and injection molding processes are also described.
    Type: Application
    Filed: August 31, 2011
    Publication date: July 4, 2013
    Inventors: Jimmie R. Baran, JR., William V. Ballard, Duane D. Fansler, Douglas B. Gundel, Michael A. Johnson, Armin J. Paff
  • Patent number: 5707722
    Abstract: A phase separated composition suitable for coating onto an ink-jet recording sheet comprising,a) at least one nonionic fluorocarbon surfactant having a hydrophilic portion and a hydrophobic portion,b) at least one polymer selected from the group consisting of hydroxycellulose and substituted hydroxycellulose polymers, andc) at least one phase separation additivesuch composition being crosslinkable when subjected to temperatures of at least about 90.degree. C., such composition forming a microporous coating.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: January 13, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammed Iqbal, Armin J. Paff, Donald J. Williams
  • Patent number: 5688603
    Abstract: A non-crosslinked composition suitable for coating onto an ink-jet recording sheet comprising.a) at least one nonionic fluorocarbon surfactant,b) at least one alkanolamine metal chelate wherein said metal is selected from the group consisting of titanium, zirconium and aluminum, andc) at least one polymer selected from the group consisting of hydroxycellulose and substituted hydroxycellulose polymers,such composition being crosslinkable when subjected to temperatures of at least about 90.degree. C.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: November 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammed Iqbal, Armin J. Paff, Donald J. Williams, Omar Farooq, David W. Tweeten
  • Patent number: 5567507
    Abstract: An ink-receptive sheet comprising a substrate bearing on at least one major surface an ink-receptive coating comprising at least two layers, a thin upper layer and a thick base layer, wherein said upper layer comprises a high viscosity binder selected from the group consisting of methylcellulose, hydroxypropyl methylcellulose, and blends thereof.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: October 22, 1996
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Armin J. Paff, Alan G. Miller, Donald J. Williams
  • Patent number: 4956230
    Abstract: Transparent sheet for use with ink jet printers and pen plotters which utilize hydrophilic solvent-based inks. The sheet comprises a transparent backing bearing on at least one major surface thereof a transparent coating formed of a blend of at least one hydrophilic polymer containing a carbonylamido functional group and at least one hydrophobic polymer substantially free of acidic functional groups, hydroxyl groups, >NH groups and --NH.sub.2 groups.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: September 11, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donald W. Edwards, Armin J. Paff, Daniel C. Duan
  • Patent number: 4935307
    Abstract: A hydrophilic, polymeric blend which provides improved durability and reduced curl when used as an image-receptive layer on graphic arts films. The blend comprises at least one water-absorbing, hydrophilic polymeric material, at least one hydrophobic polymeric material having acid functionality, and at least one polyethylene glycol. The layer formed from the blend provides high sorption capacity combined with good physical integrity even when wet, along with dimensional stability.The invention also provides sheets suitable for preparing visual transparencies having a backing bearing on at least one major surface thereof an image-receptive layer formed from the aforementioned blend.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: June 19, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mohammad Iqbal, Armin J. Paff