Patents Assigned to E. I. Du Pont de Nemours and Co.
  • Patent number: 7037967
    Abstract: The present invention relates to compositions and preparative process of partially or fully neutralized mixtures of carboxylate functionalized ethylene high copolymers or terpolymers (Mw between 80,000 and 500,000) with carboxylate functionalized ethylene low copolymers (Mw between 2,000 and 30,000) and organic acid salts and injection or compression molded applications such as golf ball components thereof.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: May 2, 2006
    Assignee: E. I. du Pont de Nemours & Co.
    Inventor: John C. Chen
  • Patent number: 6736453
    Abstract: Upholstery stretch slipcovers are constructed from fabric having sufficient elastic recovery force so that the covers require no additional fabric to hold the slipcovers in place or to maintain a substantial absence of wrinkles in the slipcovers. The stretch slipcovers are particularly useful for chairs having separate back and seat cushions.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: May 18, 2004
    Assignee: E. I. du Pont de Nemours and Co.
    Inventors: Jeffrey A. Chambers, John Gorcyca, Geoffrey D. Hietpas
  • Patent number: 6716523
    Abstract: A dispersant slurry for making spandex, based on phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohol or aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohol dispersants, is provided.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: April 6, 2004
    Assignee: E. I. du Pont de Nemours and Co.
    Inventors: Thomas Edward Carney, Oliver Gutsche, Kai-Volker Schubert
  • Patent number: 6713410
    Abstract: A method of treating textile which is yarn or fabric containing spandex fibres, comprising contracting the textile with a perfume so that the perfume is deposited on the fabric. The perfume contains a mixture of fragrance materials which preferentially deposit on the spandex fibres. The yarn of fabric may be made up into garments.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: March 30, 2004
    Assignee: E.I. du Pont de Nemours and Co.
    Inventors: Keith Douglas Perring, Christopher Francis Clements, Angus Peter MacMaster, Raymond Palmen, Olivier William John
  • Publication number: 20040048382
    Abstract: This invention relates to an isolated nucleic acid fragment encoding a hemicellulose biosynthesis protein. The invention also relates to the construction of a chimeric gene encoding all or a portion of the hemicellulose biosynthesis protein, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the hemicellulose biosynthesis protein in a transformed host cell.
    Type: Application
    Filed: August 26, 2002
    Publication date: March 11, 2004
    Applicant: E. I. du Pont de Nemours & Co.
    Inventors: Emil M. Orozco, Saverio Carl Falco
  • Patent number: 6545091
    Abstract: Polyethylene-based adhesive compositions which contain as little as 5 weight percent, and up to 35 weight percent of an acid-grafted metallocene polyethylene have superior peel strength to comparable compositions containing an acid grafted non-metallocene polyethylene. Compositions where the acid-grafted metallocene polyethylene component is based on a metallocene polyethylene having a melt-flow ratio of less than 6.53 and an Mw/Mn of greater than the melt flow ratio less 4.63 are as good adhesive compositions as those based on metallocene resins falling outside these parameters.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: April 8, 2003
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: I-Hwa Lee, Barry A. Morris
  • Patent number: 6543083
    Abstract: Bristle stiffness is varied by allowing a support beam that carries the bristles to undergo torsional movement in response to brushing action. Torsional movement is achieved by allowing the support beam to be disconnected to the brush head along at least portions of the length of the support beam. In particularly preferred embodiments, brushes employing the varying stiffness techniques are made with bristle sub-assemblies that have at least one row of bristles connected to a base string or similar structure that functions as a support beam. The base string can be connected across an opening in the brush, and is thus connected at its opposite ends, or it can be connected at any number of spaced intervals, the number and length of spacing being selected to achieve a desired degree of stiffness.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: April 8, 2003
    Assignee: E. I. du Pont de Nemours & Co.
    Inventor: Mark Stephen Edwards
  • Patent number: 6528174
    Abstract: The present invention relates to film-forming compositions containing ethylene vinyl acetate copolymers with a vinyl acetate percentage that causes film-forming problems and processability problems and an alkylene bisoleamide which is used to enhance the film forming capabilities of theses high VA content resins. The invention also relates to films prepared from theses compositions and to coating compositions.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: March 4, 2003
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Randall Allen Vogel, George L. K. Hoh, Alok Shekhar
  • Patent number: 6451435
    Abstract: The present invention relates to an interlayer product for laminated safety glass whereby multiple layers of interlocking interlayer film having the desired properties of thickness and melt fracture surface pattern are combined to meet a specific functional need. In the present invention, two or more rolls of sheeting comprising polyvinyl butyral as the primary component are simultaneously unwound and rewound together under controlled tension, line speed and temperature so that the edges of the respective layers are aligned and roll formation is normal, the tension on the respective sheets is equal, thickness is maintained and entrapped air is minimized. The resulting product is used to produce laminated safety glass with thick interlayer construction.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: September 17, 2002
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Guenter Klafka, Richard Wiemer
  • Patent number: 6440557
    Abstract: Brush filaments having an outer surface which, distal from the filaments' free ends, exhibits sudden directional changes which in use can effect a cleaning action additional to that due to the free ends of the filaments is disclosed.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: August 27, 2002
    Assignee: E. I. du Pont de Nemours & Co.
    Inventor: Moosa Naghibi
  • Patent number: 6401613
    Abstract: A printing cylinder sleeve assembly comprises an inner sleeve made of tubular form from a material which is capable of expanding upon the application of air pressure to the inner surface of the inner sleeve. An outer sleeve is mounted over the inner sleeve in a slip fit manner so that the outer sleeve could be mounted over the inner sleeve assembly comprising the inner sleeve and the outer sleeve and the assembly as a unit can then be mounted over the printing cylinder.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: June 11, 2002
    Assignees: Xymid, LLC, E.I. Du Pont de Nemours & Co.
    Inventors: Gregory J. Gayle, Anthony Bart
  • Patent number: 6372352
    Abstract: A laminar structure comprised of at least one layer of glass and a sheet of plasticized PVB containing an adhesion control agent is provided wherein delamination resulting from air being from air being dispersed or entrapped and dissolved in the PVB is controlled by use of a surface energy modifying agent, said surface energy modifying agent being selected to provide a total surface energy for the sheet of less than 52 dynes/cm.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: April 16, 2002
    Assignee: E. I. du Pont de Nemours and Co.
    Inventors: Ioannis V. Bletsos, John W. Turnbull, Bert C. Wong
  • Patent number: 6087296
    Abstract: The present invention relates to a Raney catalyst comprising iron, cobalt, a third metal wherein the third metal is selected from the group consisting of nickel, rhodium, ruthenium, palladium, platinum, osmium, iridium and mixtures of any of these metals.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: July 11, 2000
    Assignee: E. I. du Pont de Nemours & Co.
    Inventor: Mark Jay Harper
  • Patent number: 5965232
    Abstract: A composite floor covering having an upper layer of a decorative fabric, a dimensionally stabilizing intermediate layer, and an optional lower cushioning layer has at least the upper surface of the decorative fabric coated with a protective polymeric coating in a manner such that the hand of the decorative fabric layer is substantially retained. The materials of the fabric layer, stabilizing layer, and cushioning layer (if provided) as well as the form of attachment therebetween, cooperate to render the floor covering substantially impervious to liquid.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: October 12, 1999
    Assignee: E.I. du Pont de Nemours & Co., Inc.
    Inventor: Yashavant Vinayak Vinod
  • Patent number: 5906877
    Abstract: This invention provides moisture stable tuftstring carpet assemblies. The pile surface structure comprises a moisture stable backing substrate, a plurality of elongated pile articles each comprising an elongated, moisture stable support strand having bonded thereto a plurality of "U" shaped bundles of multifilament yarn. The pile articles are bonded to the backing substrate. Different backing substrates and support strands may be used.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: May 25, 1999
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Peter Popper, Rashi Akki, Lap-Tak Andrew Cheng, Carmen Anoish Covelli, Sassan Hojabr, George Kevork Kodokian, Vijayendra Kumar, James K. Odle, Kalika Ranjan Samant, Caroline Tjhen Shibata, Wae-Hai Tung, Gregory Paul Weeks, Paul Wesley Yngve
  • Patent number: 5879779
    Abstract: An improved stitchbonded nonwoven fabric having repeating patterns of stitches in a fibrous layer is prepared with a stitching thread that consists essentially of fiber of partially molecularly oriented synthetic organic polymer. The fabric can be stretched, shrunken, and/or heat set and is particularly suited for thermoforming operations.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: March 9, 1999
    Assignee: E. I. du Pont de Nemours & Co.
    Inventor: Dimitri Peter Zafiroglu
  • Patent number: 5640493
    Abstract: An on-line training neural network for controlling a process for producing a product having at least one product property that trains by retrieving training sets from a stream of process data. The neural network detects the availability of new training data, and constructs a training set by retrieving the corresponding input data. The neural network is trained using the training set. Over time, many training sets are presented to the neural network. When multiple presentations are needed to effectively train, a buffer of training sets is filled and updated as new training data becomes available. The size of the buffer is selected in accordance with the training needs of the neural network. Once the buffer is full, a new training set bumps the oldest training set off the top of the buffer stack. The training sets in the buffer stack can be presented one or more times each time a new training set is constructed.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 17, 1997
    Assignee: E. I. Du Pont de Nemours & Co., Inc.
    Inventor: Richard D. Skeirik
  • Patent number: 5631324
    Abstract: The invention is directed to a golf ball comprising a core and a cover, wherein the cover comprises a blend of at least one olefinic ionomer and a terpolymer, said terpolymer comprising a first monomeric component comprising an olefinic monomer having from about 2 to about 8 carbon atoms, a second monomeric component selected from unsaturated acrylate class ester having from about 2 to about 18 carbon atoms; and, a third monomeric component comprising at least one monomer selected from the group consisting of carbon monoxide, anhydride monomers and monomers having a structure according to the following formula ##STR1## wherein R.sub.1 is hydrogen or a linear chain or branched chain alkyl group of from about 1 to about 18 carbon atoms and R.sub.2 is selected from the group consisting of linear chain or branched chain alkyl, substituted or unsubstituted carbocyclic and substituted aryl groups containing an epoxy, i.e., glycidyl moiety.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignees: Acushnet Company, E. I. Du Pont de Nemours & Co.
    Inventors: Murali Rajagopalan, Robert J. Statz
  • Patent number: 5616640
    Abstract: A golf ball employing a cover composition comprising an oxa acid compound having the formula ##STR1## wherein R is an organic moiety selected from the group consisting of alkyl, carbocyclic, and heterocyclic groups. Additionally, the present invention is directed towards a golf ball cover composition comprising a copolymer of at least two comonomers, the first comonomer comprising an oxa acid composition of Formula I, and the second comonomer is selected from the group consisting of polyurethanes, epoxy resins, polyethylenes, polyamides, polyesters, and a monomer having a carboxylic acid moiety or its corresponding ionomer. Golf balls employing the present cover compositions exhibit excellent spin characteristics as well as good shear resistance.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 1, 1997
    Assignees: Acushnet Company, E. I. Du Pont de Nemours & Co.
    Inventor: Kevin M. Harris
  • Patent number: D454004
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: March 5, 2002
    Assignee: E. I. du Pont de Nemours & Co
    Inventor: Moosa Naghibi