Patents by Inventor Michael R. Croce

Michael R. Croce 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).

  • Organotin stabilizer composition for polymers
    Patent number: 5518662
    Abstract: Blends of methyltin mercapto carboxylic acid esters and butyltin carboxylates which form homogeneous stable liquid mixtures and provide initial color control, processing heat stability, as well as light stability to chlorinated polymers are disclosed. As these compositions are homogeneous liquids at ambient temperatures they can be readily measured and mixed into the resins, and are thus easy to formulate, market and use.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: May 21, 1996
    Assignee: Argus Chemical Corporation
    Inventors: Kook-Jim Bae, Stuart D. Brilliant, Michael R. Croce
  • Polymer stabilizer and polymer compositions stabilized therewith
    Patent number: 5516821
    Abstract: Blends of methyltin mercapto carboxylic acid esters and butyltin carboxylates which form homogeneous stable liquid mixtures and provide initial color control, processing heat stability, as well as light stability to chlorinated polymers are disclosed. As these compositions are homogeneous liquids at ambient temperatures they can be readily measured and mixed into the resins, and are thus easy to formulate, market and use.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: May 14, 1996
    Assignee: Argus Chemical Corporation
    Inventors: Kook-Jin Bae, Stuart D. Brilliant, Michael R. Croce
  • Stabilization and foaming of polyvinylchloride resins
    Patent number: 5055495
    Abstract: An improvement in the method for the foaming of polyvinylchloride resins by the use of a blowing agent and an activator therefor which uses as the activator a mixture of at least one organotin mercapto acid ester and a diorganotin oxide complex with an ester of an oxygen-containing acid.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: October 8, 1991
    Assignee: Witco Corporation
    Inventors: Michael R. Croce, Stuart D. Brilliant
  • Halogenated vinyl polymer composition and method for stabilizing halogenated vinyl polymer composition containing smoke retardants
    Patent number: 4988751
    Abstract: Halogenated vinyl polymer compositions containing molybdenum smoke retardants and organotin compounds having an overall ratio of sulfur to tin of not more than 1.7 gram atoms of sulfur per gram atom of tin, typically from about 0.6 to about 1.7 and preferably from about 0.6 to about 0.9 gram atoms of sulfur per gram atom of tin.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: January 29, 1991
    Assignee: Witco Corporation
    Inventors: Scott R. Chambers, Michael R. Croce
  • Stabilization and foaming of polyvinylchloride resins
    Patent number: 4977193
    Abstract: An improvement in the method for the foaming of polyvinylchloride resins by the use of a blowing agent and an activator therefor which uses as the activator a mixture of at least one organotin mercapto acid ester and a diorganotin oxide complex with an ester of an oxygen-containing acid.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: December 11, 1990
    Assignee: Witco Corporation
    Inventors: Michael R. Croce, Stuart D. Brilliant