Compositions For Coating Or Impregnating A Substrate Used For Collecting Fine Particles By Adherence, Or Processes Of Preparing (e.g., For Impregnating Dusting Cloths, Dust Filters, Etc.) Patents (Class 252/88.2)
  • Patent number: 6811721
    Abstract: The present invention provides a composition and a method for reducing the production of persistent bio-accumulative and toxic pollutants in solid carbonaceous reduction reactions in carbochlorination processes.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: November 2, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephen W. Taylor, James B. Dunson, Jr.
  • Patent number: 6551525
    Abstract: A dust-proof element for reducing creeping dispersion of dust along a free surface formed as one of locally limited dust trap element (5) and dust barrier (7) having a surface with an artificial pimpled microcrystalline structure with bumps and indentations having a size in a range from 5 to 100 &mgr;m and spaced from each other by a distance from 5 to 200 &mgr;m, and a method of protecting hand-held tools and working tools with the dust-proof element.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: April 22, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Karl-Heinz Hofmann, Alexander Löffler
  • Patent number: 6491746
    Abstract: Compositions and methods for use in temporarily protecting a paint booth surface are described which allow removal of the protective composition and undesired overspray with a low pressure stream of water. The protective composition is a mixture containing at least a hydrophobic solvent comprising a C1-4 alkyl ester of a C16-18 fatty acid, a surfactant and a thickener.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: December 10, 2002
    Assignee: Gage Products Company
    Inventor: Stephen R. Summerfield
  • Publication number: 20020048677
    Abstract: The adhesion between a metal surface, e.g., a copper circuit trace, and a polymeric material, e.g.
    Type: Application
    Filed: August 15, 2001
    Publication date: April 25, 2002
    Inventors: Raymond J. Hanneman, Jeffrey G. Behrens
  • Publication number: 20020040747
    Abstract: The invention concerns a coagulating agent for liquid crystal solutions with a base of cellulose substances, characterized in that it contains at least one water soluble additive selected from the group consisting of ammonia, amines of salt of these compounds, the additive being such that the pH of the said coagulating agent is greater than 6. A preferable additive is a salt selected from the group consisting of ammonium formates, acetates and phosphates, mixed salts of these compounds, or mixtures of these constituents, in particular diammonium orthophosphates (NH4) 2 HPO4. The invention also concerns a method for spinning a liquid crystal solution with a base of cellulose substances, using a coagulating agent as per the invention, in particular the method called “dry-jet-wet-spinning” as well as spun articles, fibers or films, obtained by these methods.
    Type: Application
    Filed: April 16, 1999
    Publication date: April 11, 2002
  • Patent number: 6288226
    Abstract: Provided is a process for preparing an at least bis-carbamate functional 1,3,5-triazine by contacting an at least diamino-1,3,5-triazine, an acyclic organic carbonate and a base, as well as certain novel compositions producible thereby. Also provided are substantially halogen contamination free crosslinker compositions comprising the products obtainable by the process, and curable compositions based upon these crosslinkers.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: September 11, 2001
    Assignee: Cytec Technology Corporation
    Inventors: Lawrence A. Flood, Ram B. Gupta, Revathi Iyengar, David A. Ley, Venkatarao K. Pai