Patents by Inventor Christopher R. Eddy

Christopher R. Eddy 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: 20100087606
    Abstract: Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (Mw/Mn) from about 2 to about 30, a melt index (I2) from about 0.1 to about 50 grams per 10 minutes, and further comprising sulfur from about 5 to about 4000 parts per million. The amount of sulfur is also determined based upon the total weight of the ethylene-based polymer. Also disclosed is process for making an ethylene-based polymer which includes the steps of splitting a process fluid for delivery into a tubular reactor; feeding an upstream process feed stream into a first reaction zone and at least one downstream process feed stream into at least one other reaction zone, where the process fluid has an average velocity of at least 10 meters per second; and initiating a free-radical polymerization reaction.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 8, 2010
    Inventors: Teresa P. Karjala, Christopher R. Eddy, Mehmet Demirors, Wallace W. Yau, Sarat Munjal, Stefan Hinrichs, Jian Wang, Otto J. Berbee, Werner Zschoch, Cornelis J. Hosman, Lonnie G. Hazlitt, John O. Osby
  • Publication number: 20080255302
    Abstract: The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(?1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components.
    Type: Application
    Filed: March 3, 2006
    Publication date: October 16, 2008
    Inventors: Thomas Oswald, Christopher R. Eddy, Andrea M. Rhodius, Christopher W. Conrad
  • Publication number: 20080125553
    Abstract: The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y?0.0663x-0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C.
    Type: Application
    Filed: October 4, 2005
    Publication date: May 29, 2008
    Inventors: Christopher W. Conrad, David T. Gillespie, Christopher R. Eddy
  • Patent number: 5394349
    Abstract: A method for imparting to a general purpose (CISC), or reduced instruction set (RISC), type of central processing unit (CPU; microprocessor) the characteristics and performance of an integer arithmetic digital signal processor (DSP) which executes instructions acting upon multiple ("S") data elements in parallel. The method is applicable to all finite mathematical computations wherein product and sum terms (for example) will never overflow "1/S" fraction of total word width. "S" need not be a multiple of two, but the method is most useful when it is, such as in algorithms containing "butterfly" type computations. It may be used to advantage in the implementation of all discrete orthogonal transforms, and may be generalized to any size CPU word (e.g.: 16-bit, 32-bit, 64-bit, etc.) subject only to limits imposed by the range of vector spaces being handled.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: February 28, 1995
    Assignee: Xing Technology Corporation
    Inventor: Christopher R. Eddy