Patents Assigned to E. I. Du Pont de Memours & Company
  • Publication number: 20130289312
    Abstract: Disclosed herein are processes for preparing an ?,?-Cn-diol, wherein n is 5 or greater, from a feedstock comprising a Cn oxygenate. In some embodiments, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising metals M1, M2, and M3 and optionally a support, wherein: M1 is Mn, Cr, V, or Ti; M2 is Ni, Co, or Fe; and M3 is Cu, Ag, Pt, Pd or Au; or M1 is Pt or Rh; M2 is Cu, Ni or Pd; and M3 is Mo, Re or W. The Cn oxygenate may be obtained from a biorenewable resource.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Applicant: E I DU PONT DE MEMOURS AND COMPANY
    Inventors: Alan Martin Allgeier, Wathudura Indika Namal De Silva, Carl Menning, Joachim C. Ritter, Sourav Kumar Sengupta
  • Publication number: 20130072608
    Abstract: Disclosed is a molded or extruded thermoplastic article, including a thermoplastic polyamide composition including (a) a polyamide resin; (b) one or more polyhydroxy polymer(s); (c) one or more co-stabilizer(s); (d) one or more reinforcement agents; (e) and, optionally, a polymeric toughener.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: E I DU PONT DE MEMOURS AND COMPANY
    Inventors: Robert J. Palmer, Toshikazu Kobayashi
  • Publication number: 20090324832
    Abstract: This invention relates to the synthesis and isolation of colloidal silver particles through the use of thermomorphic polymers and the resulting composition. It further relates to the use of the resulting composition in the preparation of inks for printing with silver-containing inks.
    Type: Application
    Filed: September 3, 2009
    Publication date: December 31, 2009
    Applicant: E. I. DU PONT DE MEMOURS AND COMPANY
    Inventor: Steven Dale Ittel
  • Patent number: 7074886
    Abstract: The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: July 11, 2006
    Assignee: E. I. du Pont de Memours and Company
    Inventors: Frank P. Uckert, Andrew Edward Feiring
  • Patent number: 5587317
    Abstract: The invention relates to a method for the dehalogenation of organohalogen compounds commonly found as pollutants in soil and ground water. The instant method utilizes anaerobic bacteria comprising an extracellular electron transfer protein coupled with a tetrapyrrole catalyst to effect the reductive dehalogenation of halogenated organics. Optionally, an electron transport mediator may be used to enhance the rate of dehalogenation.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: December 24, 1996
    Assignee: E. I. Du Pont de Memours & Company
    Inventor: James M. Odom
  • Patent number: 3963647
    Abstract: An injection moldable, electrostatically paintable polyolefin composition comprising 100 parts of an ethylene/higher .alpha.-olefin copolymer rubber, 20-100 parts of a crystalline propylene polymer, and carbon black, said carbon black having a mean particle diameter of from about 15-30 millimicrons, an oil absorption number (A) having a minimum value of about 40 cc/100 g. and a maximum value wherein A is calculated from the formula A = 0.3116D.sup.2 -18.708D +359.67, wherein D is the mean particle diameter, with the proviso that the maximum value of A is never greater than 130 cc/100 g., said carbon black present within a range determined by the following formulas:Minimum parts carbon black = 2.157D -0.0145D.sup.2 -0.00467AD -5.03;maximum parts carbon black = 0.863D -0.005OD.sup.2 -0.00625AD -0.3663A +0.00159A.sup.2 +49.19;wherein A and D have the values given hereinabove and parts carbon black is based upon the total weight of polymers.
    Type: Grant
    Filed: August 22, 1974
    Date of Patent: June 15, 1976
    Assignee: E. I. Du Pont de Memours and Company
    Inventor: Robert Michael Straub