Patents by Inventor Oded Erez

Oded Erez 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: 20110304080
    Abstract: A geocell is disclosed that has high strength and stiffness, such that the geocell has a storage modulus of 500 MPa or greater at 23° C.; a storage modulus of 150 MPa or greater at 63° C. when measured in the machine direction using Dynamic Mechanical Analysis (DMA) at a frequency of 1 Hz; a tensile stress at 12% strain of 14.5 MPa or greater at 23° C.; a coefficient of thermal expansion of 120×10?6/° C. or less at 25° C.; and/or a long term design stress of 2.6 MPa or greater. The geocell is suitable for load support applications, especially for reinforcing base courses and/or subbases of roads, pavement, storage areas, and railways.
    Type: Application
    Filed: August 24, 2011
    Publication date: December 15, 2011
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20110301262
    Abstract: A process is provided for producing a compatibilized polymeric blend. A first thermoplastic polymer and a reactive moiety are provided to a progressive melt kneading apparatus. The reactive moiety comprises a first reactive group capable of reacting with the first thermoplastic polymer but not a second polymer and a second reactive group capable of reacting with the second polymer but not the first polymer. The first thermoplastic polymer and the reactive moiety are then melt kneaded so that the first reactive group reacts with the first thermoplastic polymer and the second reactive group is grafted to the first thermoplastic polymer, forming a molten self-compatibilizer. A molten second polymer is then provided. The molten self-compatibilizer is melt kneaded with the molten second polymer so that the second reactive group reacts with the second polymer to form a compatibilized polymeric blend. Also provided are articles formed from the compatibilized polymer blend.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 8, 2011
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20110243670
    Abstract: A retaining wall comprises a plurality of layers made from geocells. The retaining wall has a capping layer at the top of the wall, wherein the ratio of the length of the capping layer to the height of the retaining wall is at least 0.8. The retaining wall also has at least one stacking layer and may further comprise a reinforcing layer made of geogrids or, preferably, geocells. The reinforcing geocells have a height that is less than the height of the capping layer geocell.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Inventors: Oded Erez, Adi Erez
  • Patent number: 8026309
    Abstract: A process is provided for producing a compatibilized polymeric blend. A first thermoplastic polymer and a reactive moiety are provided to a progressive melt kneading apparatus. The reactive moiety comprises a first reactive group capable of reacting with the first thermoplastic polymer but not a second polymer and a second reactive group capable of reacting with the second polymer but not the first polymer. The first thermoplastic polymer and the reactive moiety are then melt kneaded so that the first reactive group reacts with the first thermoplastic polymer and the second reactive group is grafted to the first thermoplastic polymer, forming a molten self-compatibilizer. A molten second polymer is then provided. The molten self-compatibilizer is melt kneaded with the molten second polymer so that the second reactive group reacts with the second polymer to form a compatibilized polymeric blend. Also provided are articles formed from the compatibilized polymer blend.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: September 27, 2011
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 8025457
    Abstract: A geocell is disclosed that has high strength and stiffness, such that the geocell has a storage modulus of 500 MPa or greater at 23° C.; a storage modulus of 150 MPa or greater at 63° C. when measured in the machine direction using Dynamic Mechanical Analysis (DMA) at a frequency of 1 Hz; a tensile stress at 12% strain of 14.5 MPa or greater at 23° C.; a coefficient of thermal expansion of 120×10?6/° C. or less at 25° C.; and/or a long term design stress of 2.6 MPa or greater. The geocell is suitable for load support applications, especially for reinforcing base courses and/or subbases of roads, pavement, storage areas, and railways.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 27, 2011
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20110217117
    Abstract: Disclosed are geotechnical structures formed from a geosynthetic article and an encapsulated granular material dispersed within or upon the encapsulated granular material. In particular embodiments, a geocell is used as the geosynthetic article. Among other things, the geotechnical structures can be used for forming roads, parking lots, paved surfaces, as well as road beds and foundations for highways or railroads. The geotechnical structures are cost-effective and provide exceptional properties for long-term use.
    Type: Application
    Filed: June 29, 2010
    Publication date: September 8, 2011
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20110217498
    Abstract: Disclosed are creep resistant articles having a polyolefin in a continuous phase and fibrils or lamellae of polyester, polyamide, or mixtures thereof dispersed in the continuous phase.
    Type: Application
    Filed: June 29, 2010
    Publication date: September 8, 2011
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20110212322
    Abstract: The present disclosure generally relates to a polymeric cellular confinement system which can be filled with soil, concrete, aggregate, earth materials, and the like. More specifically, the present disclosure concerns a cellular confinement system characterized by improved durability against damage generated by UV light, humidity, and aggressive soils, or combinations thereof.
    Type: Application
    Filed: May 11, 2011
    Publication date: September 1, 2011
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7993080
    Abstract: A retaining wall comprises a plurality of layers made from geocells. The retaining wall has a capping layer at the top of the wall, wherein the ratio of the length of the capping layer to the height of the retaining wall is at least 0.8. The retaining wall also has at least one stacking layer and may further comprise a reinforcing layer made of geogrids or, preferably, geocells. The reinforcing geocells have a height that is less than the height of the capping layer geocell.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 9, 2011
    Assignee: PRS Mediterranean Ltd.
    Inventors: Oded Erez, Adi Erez
  • Patent number: 7955686
    Abstract: The present disclosure generally relates to a polymeric cellular confinement system which can be filled with soil, concrete, aggregate, earth materials, and the like. More specifically, the present disclosure concerns a cellular confinement system characterized by improved durability against damage generated by UV light, humidity, and aggressive soils, or combinations thereof.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: June 7, 2011
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7842373
    Abstract: Geotechnical article, and process for making it, the article having coefficient of thermal expansion less than about 150 ppm/° C. at ambient; resistance to acidic media greater than polyamide 6 resin and/or resistance to basic media greater than PET resin; resistance to hydrocarbons greater than that of HDPE; creep modulus of at least 400 MPa at 25° C., at 20% of yield stress load for 60 minutes (ISO 899-1); and 1 percent secant flexural modulus at least 700 MPa at 25° C. (ASTM D790); the article including a composition including (a) from about 1 to about 95% by weight of the composition of at least one functional group containing polymer or oligomer; and (b) from about 5 to about 99% by weight of the composition of at least one engineering thermoplastic, and optionally containing a filler and optionally containing an unmodified polyolefin, ethylene copolymer or ethylene terpolymer.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: November 30, 2010
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20100254795
    Abstract: A modular cemented planar structure is formed from a plurality of cells and a cementitious mixture. In particular, the plurality of cells can be formed by a polymeric cellular confinement system. The resulting structure is useful in many civil engineering applications. The structure allows for homogeneous curing with minimal shrinkage and cracking, as well as easy and cost effective assembly in the field.
    Type: Application
    Filed: September 25, 2009
    Publication date: October 7, 2010
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20100104800
    Abstract: The present disclosure generally relates to a polymeric cellular confinement system which can be filled with soil, concrete, aggregate, earth materials, and the like. More specifically, the present disclosure concerns a cellular confinement system characterized by improved durability against damage generated by UV light, humidity, and aggressive soils, or combinations thereof.
    Type: Application
    Filed: January 14, 2010
    Publication date: April 29, 2010
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20100080659
    Abstract: A geocell is disclosed that has high strength and stiffness, such that the geocell has a storage modulus of 500 MPa or greater at 23° C.; a storage modulus of 150 MPa or greater at 63° C. when measured in the machine direction using Dynamic Mechanical Analysis (DMA) at a frequency of 1 Hz; a tensile stress at 12% strain of 14.5 MPa or greater at 23° C.; a coefficient of thermal expansion of 120×10?6/° C. or less at 25° C.; and/or a long term design stress of 2.6 MPa or greater. The geocell is suitable for load support applications, especially for reinforcing base courses and/or subbases of roads, pavement, storage areas, and railways.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7674516
    Abstract: A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 9, 2010
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20100055443
    Abstract: A cellular confinement system is formed from an ultrasonic welding method which requires no external pressure during the welding step. A plurality of multi-layer strips can be welded such that the weld area is not thinner than the rest of the strip and has good UV protection. The method comprises: stacking a plurality of strips; providing external pressure; removing the external pressure, positioning the ultrasonic welding apparatus so that it places no external pressure on the stack; welding at least two strips; and removing the welding apparatus.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 4, 2010
    Applicant: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Patent number: 7648754
    Abstract: The present disclosure generally relates to a polymeric cellular confinement system which can be filled with soil, concrete, aggregate, earth materials, and the like. More specifically, the present disclosure concerns a cellular confinement system characterized by improved durability against damage generated by UV light, humidity, and aggressive soils, or combinations thereof.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: January 19, 2010
    Assignee: PRS Mediterranean Ltd.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20090169803
    Abstract: Geotechnical article, and process for making it, the article having coefficient of thermal expansion less than about 150 ppm/° C. at ambient; resistance to acidic media greater than polyamide 6 resin and/or resistance to basic media greater than PET resin; resistance to hydrocarbons greater than that of HDPE; creep modulus of at least 400 MPa at 25° C., at 20% of yield stress load for 60 minutes (ISO 899-1); and 1 percent secant flexural modulus at least 700 MPa at 25° C. (ASTM D790); the article including a composition including (a) from about 1 to about 95% by weight of the composition of at least one functional group containing polymer or oligomer; and (b) from about 5 to about 99% by weight of the composition of at least one engineering thermoplastic, and optionally containing a filler and optionally containing an unmodified polyolefin, ethylene copolymer or ethylene terpolymer.
    Type: Application
    Filed: March 4, 2009
    Publication date: July 2, 2009
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez
  • Publication number: 20090142144
    Abstract: A retaining wall comprises a plurality of layers made from geocells. The retaining wall has a capping layer at the top of the wall, wherein the ratio of the length of the capping layer to the height of the retaining wall is at least 0.8. The retaining wall also has at least one stacking layer and may further comprise a reinforcing layer made of geogrids or, preferably, geocells. The reinforcing geocells have a height that is less than the height of the capping layer geocell.
    Type: Application
    Filed: September 26, 2008
    Publication date: June 4, 2009
    Applicant: PRS Mediterranean Ltd.
    Inventors: Oded Erez, Adi Erez
  • Publication number: 20090142542
    Abstract: A composite system comprises a base layer, a capping layer, and at least one core geocell layer. The base layer and capping layer are stacked below and above the core geocell layer, which is infilled with a low quality material. In specific embodiments, the base layer and capping layer are each geocells infilled with a high quality material. This composite system meets engineering specifications economically.
    Type: Application
    Filed: September 26, 2008
    Publication date: June 4, 2009
    Applicant: PRS MEDITERRANEAN LTD.
    Inventors: Izhar Halahmi, Oded Erez, Adi Erez