Patents by Inventor Jack Robert Kirchner

Jack Robert Kirchner 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).

  • Patent number: 6790924
    Abstract: This invention relates to the application of fluorinated urethane compositions to stone in order to protect the stone from the deleterious effects of water and pollution.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: September 14, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Douglas Robert Anton, Jack Robert Kirchner, William Howard Tuminello
  • Publication number: 20030050367
    Abstract: This invention relates to the application of fluorinated urethane compositions to stone in order to protect the stone from the deleterious effects of water and pollution.
    Type: Application
    Filed: June 13, 2002
    Publication date: March 13, 2003
    Inventors: Douglas Robert Anton, Jack Robert Kirchner, William Howard Tuminello
  • Patent number: 6297304
    Abstract: Fluorinated diesters useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae Rf—O—C(O)—(CH2)n—C(O)—O—R1; Rf—O—C(O)—CH2—CH(R2)—C(O)—O—Rf; a mixture of Rf—O—C(O)—(CH2)n—C(O)—O—R1, Rf—O—C(O)—(CH2)n—C(O)—Rf, and R1—O—C(O)—(CH2)n—C(O)—O—R1; and [F(CF2)xCH2CH2—S—CH2]2—C—[CH2—O—C(O)—C17H35]2; wherein Rf is F(CF2)x—(CH2)m wherein x is 4 to 20 and m is 2 to 6, or F(CF2)x—SO2N(R3)—R4 wherein x is 4 to 20; R1 is a saturated aliphatic hydrocarbon with an average carbon chain length of 12 to 66 carbons; R2 is a saturated or unsaturated hydrocarbon with 1-20 carbon atoms; R3 is an alkyl radical having 1 to 4 carbon atoms; R4 is an alkylene radical having 1 to 12 carbon atoms; n is 1 to 20, and x is 4 to 20 are disclose
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: October 2, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kimberly Gheysen Raiford, Theodor Arthur Liss, Edward James Greenwood, Jack Robert Kirchner
  • Patent number: 5977390
    Abstract: Fluorinated diesters useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulaeR.sub.f --O--C(O)--(CH.sub.2).sub.n --C(O)--O--R.sub.1 ;R.sub.f --O--C(O)--CH.sub.2 --CH(R.sub.2)--C(O)--O--R.sub.f ;a mixture of R.sub.f --O--C(O)--(CH.sub.2).sub.n --C(O)--O--R.sub.1,R.sub.f --O--C(O)--(CH.sub.2).sub.n --C(O)--R.sub.f, and R.sub.1 --O--C(O)--(CH.sub.2).sub.n --C(O)--O--R.sub.1 ;and [F(CF.sub.2).sub.x CH.sub.2 CH.sub.2 --S--CH.sub.2 ].sub.2 --C--[CH.sub.2 --O--C(O)--C.sub.17 H.sub.35 ].sub.2 ;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, or F(CF.sub.2).sub.x --SO.sub.2 N(R.sub.3)--R.sub.4 wherein x is 4 to 20; R.sub.1 is a saturated aliphatic hydrocarbon with an average carbon chain length of 12 to 66 carbons; R.sub.2 is a saturated or unsaturated hydrocarbon with 1-20 carbon atoms; R.sub.3 is an alkyl radical having 1 to 4 carbon atoms; R.sub.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: November 2, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kimberly Gheysen Raiford, Theodor Arthur Liss, Edward James Greenwood, Jack Robert Kirchner
  • Patent number: 5859126
    Abstract: Coating compositions containing an alkyd, urethane or unsaturated polyester resin, and an ester of an unsaturated acid and a fluorinated alcohol wherein the cured coating has an advancing hexadecane contact angle of at least about 40 degrees and durable improved oil and water repellency is disclosed.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: January 12, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Douglas Robert Anton, Jack Robert Kirchner, William Wesley Bennett, Jr.
  • Patent number: 5789513
    Abstract: A coating composition comprising an alkyd or urethane resin and a polyfluorourethane of Formula II(R.sub.f --X--O--CO--NH).sub.m --A--(NH--CO--O--R).sub.(p-m) IIwhereinR.sub.f is a C.sub.2 -C.sub.20 linear or branched fluorocarbon,X is --(CH.sub.2).sub.n --, --(CH.sub.2).sub.g SO.sub.z (CH.sub.2).sub.t --, or --SO.sub.2 N(R.sub.1)CH.sub.2 CH.sub.2 --wherein n is 1 to about 20; g and t are each independently 1 to about 3; z is 0, 1 or 2; and R.sub.1 is an alkyl of 1 to about 4 carbon atoms;A is an aliphatic, cycloaliphatic, aromatic, or heterocyclic radical;R is a C.sub.3 -C.sub.20 linear, branched, or cyclic aliphatic group containing at least one ethylenically unsaturated double bond and optionally at least one phenyl or phenyl substituted with C.sub.1 -C.sub.6 alkyl or halogen;p is 2 to 3; andm is from about 0.8 to about 1.25 when p is 2, and m is from about 1 to about (p-1) when p is greater than 2 is disclosed.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: August 4, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Jack Robert Kirchner
  • Patent number: 5670573
    Abstract: Coating compositions containing an alkyd, urethane or unsaturated polyester resin and an ester of an unsaturated alcohol and fluorinated acid wherein the cured coating has an advancing hexadecane contact angle of at least about 40 degrees and improved oil and water repellency is disclosed.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: September 23, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jack Robert Kirchner, William Wesley Bennett, Jr.