Patents by Inventor Patrick Henry Fitzgerald

Patrick Henry Fitzgerald 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).

  • Publication number: 20110178260
    Abstract: A composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20% to about 95% of a monomer, or mixture of monomers, of formula (I): Rf—(CH2CF2)q(CH2CH2)r—Z—C(O)—C(R)?CH2??(I) wherein q and r are each independently integers of 1 to 3; Rf is a linear or branched perfluoroalkyl group having 2 to 6 carbon atoms; Z is —O—, —NR1— or —S—; R is hydrogen, Cl, F or CH3; R1 is hydrogen, or a C1 to C4 alkyl; and (b) from about 5% to about 80% of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of 6 to 18 carbons; or (ii) a monomer of formula (II): (R2)2N—R3—O—C(O)—C(R)?CH2??(II) wherein R is as defined above; each R2 is independently a C1 to C4 alkyl; and R3 is a divalent linear or branched C1 to C4 alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or (iii) a mixture thereof; said composition providing oil repellency, water repellency, and stain resistance to substrates contacted therewith;
    Type: Application
    Filed: January 20, 2010
    Publication date: July 21, 2011
    Inventors: Sheng Peng, Stephen James Getty, Patrick Henry Fitzgerald, Peter Michael Murphy, Ying Wang, Ernest Byron Wysong
  • Patent number: 7592064
    Abstract: Carpet protectants comprising an aqueous dispersion comprising A. a partially fluorinated urethane polymer having at least one urea linkage, which compound is the product of the reaction of: (1) at least one organic polyisocyanate containing at least three isocyanate groups; (2) at least one fluorochemical compound which contains per molecule (a) a single functional group having one or more Zerewitinoff hydrogen atoms and (b) at least two carbon atoms, each of which is attached to at least two fluorine atoms; and (3) water in an amount sufficient to react with from about 5% to about 60% of the isocyanate groups in said polyisocyanate; B. a non-fluorinated cationic surfactant; and C. a non-fluorinated nonionic surfactant are disclosed.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: September 22, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Patrick Henry Fitzgerald, Andrew Hen Liu, Peter Michael Murphy, Charles L. Strickler
  • Publication number: 20080202384
    Abstract: A composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20% to about 95% of a monomer, or mixture of monomers, of formula (I): Rf—(CH2CF2)q(CH2CH2)r-Z-C(O)—C(R)?CH2 ??(I) wherein q and r are each independently integers of 1 to 3; Rf is a linear or branched perfluoroalkyl group having 2 to 6 carbon atoms; Z is —O—, —NR1— or —S—; R is hydrogen, Cl, F or CH3; R1 is hydrogen, or a C1 to C4 alkyl; and (b) from about 5% to about 80% of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of 6 to 18 carbons; or (ii) a monomer of formula (II): (R2)2N—R3—O—C(O)—C(R)?CH2 ??(II) wherein R is as defined above; each R2 is independently a C1 to C4 alkyl; and R3 is a divalent linear or branched C1 to C4 alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or (iii) a mixture thereof; said composition providing oil repellency, water repellency, and stain resistance to substrates contacted therewi
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Inventors: Sheng Peng, Stephen James Getty, Patrick Henry Fitzgerald, Peter Michael Murphy, Ying Wang, Ernest Byron Wysong
  • Patent number: 7344758
    Abstract: A polymer extender composition for use with fluorochemical repellents, said composition comprising monomers copolymerized in the following percentages by weight: (a) from about 60% to about 94% of a monomer, or mixture of monomers, of the formula I: [CH3—(CH2)p][CH3(CH2)n]CHCH2—OC(O)—C(R)?CH2, and ??(I) (b) from about 5% to about 20% of a monomer, or mixture of monomers, of the formula II: H—(OCH2CH2)m—O—C(O)—C(R)?CH2 ??(II) wherein each R is independently H or CH3; n is 1 to 10; p is 1 to 20 and m is 2 to 10 is disclosed.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: March 18, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Justine Gabrielle Franchina, Patrick Henry Fitzgerald
  • Patent number: 6790905
    Abstract: Carpet protectants comprising an aqueous dispersion comprising A. a partially fluorinated urethane polymer having at least one urea linkage, which compound is the product of the reaction of: (1) at least one organic polyisocyanate containing at least three isocyanate groups; (2) at least one fluorochemical compound which contains per molecule (a) a single functional group having one or more Zerewitinoff hydrogen atoms and (b) at least two carbon atoms, each of which is attached to at least two fluorine atoms; and (3) water in an amount sufficient to react with from about 5% to about 60% of the isocyanate groups in said polyisocyanate; B. a non-fluorinated cationic surfactant; and C. a non-fluorinated nonionic surfactant are disclosed.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: September 14, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Patrick Henry Fitzgerald, Andrew Hen Liu, Peter Michael Murphy, Charles L. Strickler
  • Publication number: 20030157296
    Abstract: Carpet protectants comprising an aqueous dispersion comprising
    Type: Application
    Filed: October 9, 2001
    Publication date: August 21, 2003
    Inventors: Patrick Henry Fitzgerald, Andrew Hen Liu, Peter Michael Murphy, Charles L. Strickler
  • Patent number: 5798402
    Abstract: Compositions and processes for imparting repellency to low surface tension fluids in thermoplastic polymers, said compositions containing compounds of formulae R.sub.f SO.sub.2 (CH.sub.2).sub.n C(O).sub.2 OR, RSO.sub.2 (CH.sub.2).sub.n C(O)OR.sub.f and R.sub.f SO.sub.2 R wherein R.sub.f is F(CF.sub.2).sub.x --(CH.sub.2).sub.m wherein x is 4 to 20 and m is 2 to 6, R is a saturated aliphatic hydrocarbon with an average carbon chain length of 12 to 66 carbons; and n is 1 to 4 are disclosed.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: August 25, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Patrick Henry Fitzgerald, Kimberly Gheysen Raiford, Edward James Greenwood
  • Patent number: 4094699
    Abstract: Process for converting premilled quinacridone to pigmentary form by contacting the premilled quinacridone with an aqueous alkaline medium in the presence of at least one surfactant. The process eliminates the need for salt in the premilling operation and eliminates the use of organic liquids in the premilling or aftertreatment of the premilled quinacridone.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: June 13, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Patrick Henry Fitzgerald