Patents by Inventor Jennifer L. Bohan

Jennifer L. Bohan 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).

  • Process for controlling the molecular weight of polymers of bromostyrene
    Patent number: 7820764
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: October 26, 2010
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • PROCESS FOR CONTROLLING THE MOLECULAR WEIGHT OF POLYMERS OF BROMOSTYRENE
    Publication number: 20100120990
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Application
    Filed: January 20, 2010
    Publication date: May 13, 2010
    Applicant: Chemtura Corporation
    Inventors: Wayne MEYER, Jennifer L. BOHAN, Larry D. TIMBERLAKE, James D. SIEBECKER
  • Polymer compositions of bromostyrenes having controlled molecular weight
    Patent number: 7691947
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: April 6, 2010
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • Process for controlling the molecular weight of polymers of bromostyrenes
    Patent number: 7691954
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: April 6, 2010
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • Polymers of bromostyrenes having controlled molecular weight
    Patent number: 7612156
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 3, 2009
    Assignee: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • PROCESS FOR CONTROLLING THE MOLECULAR WEIGHT OF POLYMERS OF BROMOSTYRENES
    Publication number: 20090227753
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alpha-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Application
    Filed: May 18, 2009
    Publication date: September 10, 2009
    Applicant: Chemtura Corporation
    Inventors: Wayne MEYER, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • POLYMER COMPOSITIONS OF BROMOSTYRENES HAVING CONTROLLED MOLECULAR WEIGHT
    Publication number: 20090221754
    Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alph?-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.
    Type: Application
    Filed: May 18, 2009
    Publication date: September 3, 2009
    Applicant: Chemtura Corporation
    Inventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
  • Flame-retardant polyamide compositions
    Patent number: 6774174
    Abstract: This invention deals with the development of improved SMT performance flame retardant polyamide compositions. The compositions include replacing the poly bromostyrene or brominated polystyrene with a copolymer of a halostyrene and glycidyl(meth)acrylate. The resulting composition results in greatly improved blistering performance in Surface Mounting Technology Applications.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: August 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marvin Michael Martens, Reiko Koshida, Jennifer L. Bohan, William Ray Fielding
  • Flame-retardant polyamide compositions
    Publication number: 20020103281
    Abstract: This invention deals with the development of improved SMT performance flame retardant polyamide compositions. The compositions include replacing the poly bromostyrene or brominated polystyrene with a copolymer of a halostyrene and glycidyl (meth) acrylate. The resulting composition results in greatly improved blistering performance in Surface Mounting Technology Applications.
    Type: Application
    Filed: September 21, 2001
    Publication date: August 1, 2002
    Inventors: Marvin Michael Martens, Reiko Koshida, Jennifer L. Bohan, William Ray Fielding