Patents by Inventor John M. Krajnik

John M. Krajnik 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).

  • Patent number: 8013092
    Abstract: A waterborne coating produced form a composition containing a binder resin having post crosslinking groups, an associative thickener having post crosslinking groups, a dispersant having post crosslinking groups, and a reactive diluent having post crosslinking groups.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 6, 2011
    Assignee: The Sherwin-Williams Company
    Inventors: John M. Krajnik, Peter J. Mackulin, Pietro J. Ragone
  • Patent number: 6869996
    Abstract: A waterborne coating having improved chemical resistance produced from a composition containing a binder resin having post crosslinking groups, an associative thickener having post crosslinking groups and an associative dispersant having post crosslinking groups.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: March 22, 2005
    Assignee: The Sherwin-Williams Company
    Inventors: John M. Krajnik, Keith R. Olesen, Gerald A. Vandezande
  • Publication number: 20020103278
    Abstract: A waterborne coating composition for a cured film having improved film properties and uniform film formation comprising a binder polymer containing a reactive keto group, at least one carboxylic monohydrazide or dihydrazide or polyhydrazide compound, and a reaction moderator. More specifically, the waterborne coating composition comprises (a) at least one binder polymer comprising at least one or more copolymerizable monoethylenically unsaturated monomers, wherein at least one of the monoethylenically unsaturated monomers contains at least one reactive keto group; and (b) at least one monohydrazide or dihydrazide or polyhydrazide compound; and (c) at least one reaction moderator. Reaction moderators moderate or retard the crosslinking process before film formation occurs and then act to catalyze the film formation crosslinking reaction. The final cured film product of the waterborne coatings produced by this invention have a much higher crosslink density per unit time and a uniform film formation.
    Type: Application
    Filed: September 14, 2001
    Publication date: August 1, 2002
    Inventors: John M. Krajnik, Victor H. Lam, Lynn O. Sabo, James M. Camerson, Martin L. Mittleman, Kuyler M. Wise