Patents by Inventor Martha H. Wolfersberger

Martha H. Wolfersberger 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).

  • Functionalized multistage polymers
    Patent number: 5409971
    Abstract: An aqueous, radiation-curable, functionalized latex polymer composition and its preparation are disclosed. The composition is a multistaged latex polymer formed from a first stage polymer and a second stage polymer having .alpha., .beta.-unsaturated carbonyl functionalization which permits curing by UV radiation. The composition dries tack-free before curing. The final cured UV coating has excellent solvent resistance, water resistance, stain resistance, direct impact resistance and hot print resistance. The composition is useful in coatings, adhesives, inks and leather coatings, and is particularly useful as a coating on wood.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: April 25, 1995
    Assignee: Rohm and Haas Company
    Inventors: Martha H. Wolfersberger, Frederick J. Schindler, Ronald S. Beckley, Ronald W. Novak
  • Functionalized multistage polymers
    Patent number: 5306744
    Abstract: An aqueous, radiation-curable, functionalized latex polymer composition and its preparation are disclosed. The composition is a multistaged latex polymer formed from a first stage polymer and a second stage polymer having .alpha., .beta.-unsaturated carbonyl functionalization which permits curing by UV radiation. The composition dries tack-free before curing. The final cured UV coating has excellent solvent resistance, water resistance, stain resistance, direct impact resistance and hot print resistance. The composition is useful in coatings, adhesives, inks and leather coatings, and is particularly useful as a coating on wood.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 26, 1994
    Assignee: Rohm and Haas Company
    Inventors: Martha H. Wolfersberger, Frederick J. Schindler, Ronald S. Beckley, Ronald W. Novak
  • Soil release on polyester textiles using cationic water soluble addition polymer
    Patent number: 4318956
    Abstract: A procedure is disclosed for preparing polyester fabrics having improved soil release properties. Polyester textiles impregnated with an addition polymer containing free amine groups or salts thereof are cured at elevated temperatures to give the improved fabric.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: March 9, 1982
    Assignee: Rohm and Haas Company
    Inventors: Travis E. Stevens, Martha H. Wolfersberger
  • Method and composition for treating helminths containing O,O-dialkyl-N-(substituted phenyl)aminothiocarbonyl phosphoramidates
    Patent number: 4269829
    Abstract: Phosphoramidates and salts and salt complexes useful as anthelmintics are disclosed. The products are prepared by treating an aminobenzene with an appropriately substituted isothiocyanatoate.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: May 26, 1981
    Assignee: Rohm and Haas Company
    Inventors: Michael Seidel, W. David Weir, Martha H. Wolfersberger