Patents by Inventor Corrado Callierotti

Corrado Callierotti 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).

  • Mixtures of additives for organic polymers in granular form
    Patent number: 8303851
    Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: November 6, 2012
    Assignee: Great Lakes Chemical (Europe) GmbH
    Inventors: Carlo Neri, Corrado Callierotti
  • Self-emulsifying liquid stabilizers
    Patent number: 7691927
    Abstract: A process for stabilising a natural or synthetic organic polymer or copolymer obtained from a water based latex or emulsion of the polymer or copolymer comprising adding to the later or emulsion prior to coagulation of the polymer or copolymer a substantially water-free self-emulsifying liquid stabiliser mixture comprising (a) a phosphite or phosphonite stabiliser; (b) a phenolic antioxidant and (c) an emulsifying agent. The preferred stabiliser package is a blend of 2 parts by weight liquid phosphite stabiliser to 1 part by weight liquid phenolic antioxidant which has dissolved in it a fatty acid ester emulsifier.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: April 6, 2010
    Assignee: Chemtura Europe GmbH
    Inventors: Corrado Callierotti, Jonathan Simon Hill
  • Mixtures of Additives For Organic Polymers In Granular Form
    Publication number: 20080194766
    Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.
    Type: Application
    Filed: January 18, 2008
    Publication date: August 14, 2008
    Applicant: GREAT LAKES CHEMICAL (EUROPE) GMBH
    Inventors: Carlo Neri, Corrado Callierotti
  • Self -Emulsifying Liquid Stabilizers
    Publication number: 20070254992
    Abstract: A process for stabilising a natural or synthetic organic polymer or copolymer obtained from a water based latex or emulsion of the polymer or copolymer comprising adding to the later or emulsion prior to coagulation of the polymer or copolymer a substantially water-free self-emulsifying liquid stabiliser mixture comprising (a) a phosphite or phosphonite stabiliser; (b) a phenolic antioxidant and (c) an emulsifying agent. The preferred stabiliser package is a blend of 2 parts by weight liquid phosphite stabiliser to 1 part by weight liquid phenolic antioxidant which has dissolved in it a fatty acid ester emulsifier.
    Type: Application
    Filed: July 26, 2005
    Publication date: November 1, 2007
    Applicant: Chemtura Europe GmbH
    Inventors: Corrado Callierotti, Jonathan Hill
  • Vulcanization accelerators
    Patent number: 7084212
    Abstract: The present invention relates to vulcanization accelerators constituted by compounds, derived from secondary amines, belonging to the class of enamines and to a process for their preparation.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: August 1, 2006
    Assignee: Great Lakes Chemical Italia S.r.l.
    Inventors: Fabio Broussard, Mauro Adovasio, Corrado Callierotti, Gianbattista Taroni, Jose Roncalli
  • Enamines as vulcanization accelerators for natural or synthetic rubbers
    Patent number: 6281295
    Abstract: Vulcanization accelerators consisting of compounds belonging to the group of enamines having general formula (I):
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: August 28, 2001
    Assignee: Great Lakes Chemical Italia S.r.l.
    Inventors: Fabio Broussard, Mauro Adovasio, José Roncalli, Gianbattista Taroni, Corrado Callierotti
  • Vulcanization accelerators
    Patent number: 5486613
    Abstract: The present invention relates to vulcanization accelerators constituted by compounds, derived from secondary amines, belonging to the class of enamines and to a process for their preparation.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: January 23, 1996
    Assignee: Great Lakes Chemical Italia S.r.l.
    Inventors: Fabio Broussard, Mauro Adovasio, Corrado Callierotti, Gianbattista Taroni, Jose Roncalli