Patents by Inventor Richard S. Cardinal

Richard S. Cardinal 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).

  • Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy
    Patent number: 8141716
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: March 27, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
  • Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy
    Publication number: 20110135901
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 9, 2011
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
  • Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy
    Patent number: 7910003
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: March 22, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
  • Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy
    Publication number: 20100018934
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Application
    Filed: October 5, 2009
    Publication date: January 28, 2010
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
  • Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy
    Patent number: 7641055
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: January 5, 2010
    Assignee: Donaldson Company, Inc.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci