Patents by Inventor Peter A. Callais

Peter A. Callais 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).

  • Curing catalyst
    Publication number: 20030073794
    Abstract: Use of OO-t-amyl-O(2-ethylhexyl)monoperoxycarbonate as a curing catalyst for bulk molding compounds (“BMC”s) and sheet molding compounds (“SMC”s) is provided.
    Type: Application
    Filed: October 12, 2001
    Publication date: April 17, 2003
    Inventors: Chii-Shu Chen, Peter A. Callais, J. Michael West
  • Stabilized organic peroxydicarbonate compositions
    Publication number: 20020177678
    Abstract: Thermally stabilized initiator compositions comprising:
    Type: Application
    Filed: March 21, 2002
    Publication date: November 28, 2002
    Applicant: ATOFINA Chemicals, Inc.
    Inventors: Barbara L. Stainbrook, Michael S. Mendolia, Terry N. Myers, Peter A. Callais, Joseph M. Brennan
  • Stabilized organic peroxydicarbonates compositions
    Patent number: 6399728
    Abstract: Thermally stabilized initiator composition comprising: (a) at least one dialkyl peroxydicarbonate, and (b) a stabilizing effective amount of a compound of Structure I: wherein R1 and R2 are as defined in the summary of the invention section, processes for their preparation and use are disclosed.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: June 4, 2002
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Barbara L. Stainbrook, Michael S. Mendolia, Terry N. Myers, Peter A. Callais, Joseph M. Brennan
  • Process of polymerizing vinyl chloride with hydroxylamines
    Patent number: 6340729
    Abstract: In the process according to the invention for the aqueous suspension polymerization of vinyl chloride, alone or as a mixture with another vinyl monomer, the polymerization initiator comprises at least one compound chosen from dialkyl peroxydicarbonates, peroxy-tert-alkanoates and diacyl peroxides and use is made, as agent for halting the polymerization, of a mono- or disubstituted hydroxylamine. The resins thus obtained exhibit improved color and heat stability.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 22, 2002
    Assignees: Atofina Chemicals, Inc., Atofina
    Inventors: Christian Bonardi, Pierre Hebrard, Richard Peres, Kenneth Malone, Martin Nosowitz, Michael Mendolia, Peter Callais, Barbara Stainbrook, Jianfeng Lou