Patents by Inventor John P. Petrovich

John P. Petrovich 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).

  • Polyesters, polyester/acrylic dispersions, and application thereof
    Patent number: 5637356
    Abstract: Polyesters are formed from diols and dibasic carboxylic acids at an OH/COOH ratio to provide --OH termination, and then end-capped with tribasic carboxylic acids. A major portion of the dibasic carboxylic acids used to form the polyesters have the formula: ##STR1## where x=8-32, y=0-8, x+y=8-32. The polyesters are used as support resins for forming acrylic resin emulsions. The polyester/acrylic acid emulsions are useful, for example, as textile size.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: June 10, 1997
    Assignee: Morton International, Inc.
    Inventors: Ronald J. Kerr, John P. Petrovich, Stephen J. Walker, J. Alvin Binkley
  • Cellulosic paper containing the reaction product of a dihaloalkane alkylene diamine adduct and epihalohydrin
    Patent number: 4147586
    Abstract: Cellulosic substrates containing a cationic resinous composition comprising reaction products of (A) adducts of certain dihaloalkanes and alkylene diamine and (B) certain epihalohydrins to increase wet strength.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: April 3, 1979
    Assignee: Monsanto Company
    Inventors: John P. Petrovich, David L. Taylor
  • Polyamine-epihalohydrin resinous reaction products
    Patent number: 4129528
    Abstract: Resinous reaction products wherein the hydrohalide salt of a polyamine is condensed with an epihalohydrin provides improved wet strength and improved dry strength to cellulosic substrates such as paper, paperboard, and the like. It has been found that the wet strength and dry strength of paper products can be significantly improved by using a resinous reaction product resulting from the removal of halide ions from the polyamine hydrohalide salt before it is condensed with an epihalohydrin.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: December 12, 1978
    Assignee: Monsanto Company
    Inventors: John P. Petrovich, Donald N. Van Eenam