Patents by Inventor Eduardo Alvarez

Eduardo Alvarez 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: 20240132680
    Abstract: Provided are non-breathable films including specific polymer blends, and methods for making such films. The films comprise an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer, a linear low density polyethylene, and an inorganic filler. The method of manufacturing the film comprises extruding an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer, a linear low density polyethylene, and an inorganic filler to form the film and stretching the film. The films according to embodiments disclosed herein can exhibit low WVTR values and improved modulus while also incorporating significant amounts of inorganic filler at low gauges.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 25, 2024
    Inventors: Maria Dolores Sanchez, Eduardo Alvarez-Acedo, Barbara Bonavoglia, Jozef Van Dun
  • Patent number: 11939712
    Abstract: A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 26, 2024
    Assignee: Dow Global Technologies, LLC
    Inventors: Aleksandar Stoiljkovic, Eduardo Alvarez, Yijian Lin
  • Publication number: 20240091800
    Abstract: A hand held spray dispenser in which air and liquid are pressurised towards a mixing chamber by energy generated by a manual activation element that is rotated with a unidirectional twist to energise one or more energy storage bodies, energy from which is released to generate sufficient air pressure and air flow and sufficient liquid flow for a spray to be formed from the air-liquid mixture.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 21, 2024
    Inventors: Andrew Robert AITKEN, Sebastian ALVAREZ, Sjoerd Paul HOIJINCK, Eduardo CARVALHAL LAGE VON BUETTNER RISTOW, Guy Richard THOMPSON
  • Publication number: 20230356512
    Abstract: Embodiments of the present invention relate to multilayer films, labels, and packages. In one aspect, a multilayer film having at least one matte surface comprises (a) an outer layer comprising (i) 30 to 99.5 weight percent of a first low density polyethylene having a density of 0.919 g/cm3 to 0.940 g/cm3 and a melt index (I2) of 0.3 to 5 g/10 minutes, (ii) 0.1 to 20 weight percent of polymer particles having a core and a shell structure wherein the core comprises a first polymeric material having a first refractive index and the shell comprises a second polymeric material having a second refractive index that is different from the first refractive index, and (iii) optionally, up to 50 weight percent of a first polyethylene having a density of 0.925 g/cm3 to 0.970 g/cm3 and a melt index (I2) of 0.
    Type: Application
    Filed: October 4, 2021
    Publication date: November 9, 2023
    Inventors: Thomas Hentschel, Eduardo Alvarez-acedo, Peter Sandkuehler
  • Publication number: 20230321315
    Abstract: Disclosed herein are feminine hygiene articles and multilayer film structures. According to one or more embodiments disclosed herein, a feminine hygiene article may include a feminine hygiene pad including an absorbent body, an adhesive layer positioned on at least a surface of the absorbent body, and a pouch wrap in contact with the adhesive layer of the feminine hygiene pad. The pouch wrap may include a release layer in direct contact with the adhesive layer. The release layer may include a polymer composition including low density polyethylene covalently bonded to polydimethylsiloxane.
    Type: Application
    Filed: September 15, 2021
    Publication date: October 12, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Eduardo Alvarez Acedo, Barbara Bonavoglia, Michel Brunetto, Arkady Krasovskiy, Andrew Heitsch
  • Publication number: 20230149228
    Abstract: Provided are absorbent layers and articles, and methods for making absorbent layers and articles. The absorbent layer is suitable for use in an absorbent article and may include a nonwoven that includes bicomponent fibers and superabsorbent polymer material interconnected within the nonwoven. The absorbent layer according to different embodiment may include a three-dimensional random loop material with superabsorbent polymer material adhered to the three-dimensional random loop material. Absorbent articles may comprise the absorbent layer according to embodiments of the present disclosure. The method for making the absorbent layer includes providing a nonwoven and dosing the nonwoven with superabsorbent polymer material.
    Type: Application
    Filed: April 12, 2021
    Publication date: May 18, 2023
    Inventors: Eduardo Alvarez-Acedo, Aleksandar Stoiljkovic, Barbara Bonavoglia, Edit Berczi
  • Publication number: 20220281150
    Abstract: A composition for forming a filament including a blend of: (a) from 1 wt % to 40 wt % of a post-consumer recycled material having a density of from 0.910 g/cm3 to 0.940 g/cm3 and a melt index of from 1.0 g/10 min to 5.0 g/10 min; wherein the post-consumer recycled material consists essentially of (ai) from 30 wt % to 99 wt % of a linear low density polyethylene and (aii) from 1 wt % to 70 wt % of a low density polyethylene; and (b) from 60 wt % to 99 wt % of a virgin linear low density polyethylene; wherein the viscosity in pascal-seconds of the virgin linear low density polyethylene is no less than 0.5 times the viscosity of the post-consumer recycled material and no more than 2.
    Type: Application
    Filed: October 1, 2020
    Publication date: September 8, 2022
    Inventors: Albert Carbonell, Eduardo Alvarez-acedo, Maria Isabel Arroyo Villan
  • Publication number: 20220251748
    Abstract: A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.
    Type: Application
    Filed: July 20, 2020
    Publication date: August 11, 2022
    Inventors: Aleksandar Stoiljkovic, Eduardo Alvarez-acedo, Yijian Lin
  • Patent number: 11312119
    Abstract: The present invention provides resins for use as a sealant layer in a multilayer film, multilayer films, and packages formed from such films. In one aspect, a resin for use as a sealant layer in a multilayer film comprises (a) 10 to 30 weight percent low density polyethylene based on the total weight of the resin; (b) 60 weight percent or more of a random copolymer polypropylene based on the total weight of the resin; and (c) 5 to 25 weight percent of a crystalline block copolymer composite (CBC) comprising: i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (1) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (2) a crystalline alpha-olefin block (CAOB).
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 26, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Eduardo Alvarez, Yushan Hu, David Lopez, Marcello Tognola
  • Publication number: 20220025587
    Abstract: Disclosed herein is a turf filament comprising from 50 to 99.5 weight percent of abase polymer selected from polyolefins, polyamides, polyesters and combinations thereof, from 0.1 to 20 weight percent of polymer particles having a core and a shell structure where the core comprises a first polymeric material having a first refractive index and the shell comprises a second polymeric material having a second refractive index that is different from the first refractive index, from 0.5 to 30 weight percent of a compatibilizer and from 0 to 10 weight percent of a colorant based on total weight of the filaments. Also disclosed is a synthetic turf comprising such filaments. These filaments provide a turf with a natural appearance.
    Type: Application
    Filed: December 19, 2019
    Publication date: January 27, 2022
    Inventors: Eduardo ALVAREZ, David LOPEZ, Peter Hermann Roland SANDKUEHLER
  • Publication number: 20220002924
    Abstract: A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt. % of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm3, a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190 C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (Mw(GPC)/Mn(GPC)) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 6, 2022
    Inventors: Mehmet DEMIRORS, Fabricio Arteaga LARIOS, Mridula KAPUR, Philip P. FONTAINE, David T. GILLESPIE, Yijian LIN, Lanhe ZHANG, Sanjib BISWAS, Eduardo ALVAREZ, Aleksandar STOILJKOVIC, Rajen M. PATEL
  • Publication number: 20210269626
    Abstract: A breathable elastic film includes particular amounts of a polyolefin elastomer having a density of 0.860 to 0.890 grams per cubic centimeter, a polyethylene oxide having a Brookfield viscosity in 5 weight percent aqueous solution at 25° C. of 30 to 115 centiPoise, and a hydrophilic filler. The film has a water vapor transmission rate of at least 1,000 g-mil/m2-day, as determined according to ASTM E398-2780. Composite laminates and articles including the films are also disclosed.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 2, 2021
    Inventors: Glenn POLLEFEYT, Barbara BONAVOGLIA, Eduardo ALVAREZ
  • Publication number: 20210238811
    Abstract: Embodiments of the present disclosure are directed to an artificial turf filament formed from a formulation comprising an ethylene-based polymer having a density 0.900 g/c to 0.955 g/cc and a melt index (I2) of 0.1 g/10 min to 20 g/10 min as measured according to ASTM D1238 (at 190° C., 2.16 kg), and one or more polydimethylsiloxane (PDMS) components having a number average molecular weight (Mn) of from 10,000 g/mol to 500,000 g/mol, wherein the Mn is measured by Gel Permeation Chromatography (GPC).
    Type: Application
    Filed: May 3, 2019
    Publication date: August 5, 2021
    Applicants: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Eduardo Alvarez, David Lopez, Cosme Llop, Thibault Kervyn De Meerendre, Celine Chevallier
  • Patent number: 11065145
    Abstract: The present invention relates to a biocompatible device that integrates electromagnetic and mechanical elements and allows the combination of different mechanisms for voluntary closing of the intestinal lumen. The device can be used either with a stoma to control intestinal transit to the outside and avoid the use of collection pouches, or without a stoma to regulate intestinal transit for another medically necessary reason.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 20, 2021
    Inventor: Carlos Eduardo Álvarez Ponce
  • Publication number: 20210171751
    Abstract: A swellable infill composition includes particular amount of a polyolefin elastomer, a hydrophobic plasticizer, a co-plasticizer having a hydrophilic-lipophilic balance value of greater than or equal to 6, an organic absorbent material, and, optionally, an inorganic absorbent material. The swellable infill composition can be useful for artificial turf systems.
    Type: Application
    Filed: August 14, 2019
    Publication date: June 10, 2021
    Inventors: Miguel Alberto DE JESÚS PRIETO, Eduardo ALVAREZ, David LÓPEZ
  • Publication number: 20210078314
    Abstract: The present invention provides resins for use as a sealant layer in a multilayer film, multilayer films, and packages formed from such films. In one aspect, a resin for use as a sealant layer in a multilayer film comprises (a) 10 to 30 weight percent low density polyethylene based on the total weight of the resin; (b) 60 weight percent or more of a random copolymer polypropylene based on the total weight of the resin; and (c) 5 to 25 weight percent of a crystalline block copolymer composite (CBC) comprising: i) a crystalline ethylene based polymer (CEP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP); and iii) a block copolymer comprising (1) a crystalline ethylene block (CEB) comprising at least 90 mol % polymerized ethylene and (2) a crystalline alpha-olefin block (CAOB).
    Type: Application
    Filed: July 2, 2018
    Publication date: March 18, 2021
    Inventors: Eduardo Alvarez, Yushan Hu, David Lopez, Marcello Tognola
  • Publication number: 20210062436
    Abstract: Artificial turf system (10) including a primary backing layer (12) and a shock absorption component (20). The primary backing layer (12) has a plurality of artificial turf yarns (14) projecting upwardly from the primary backing layer (12). The shock absorption component (20) is composed of a sheet of three-dimensional random loop material 3DRLM (30). The sheet of 3DRLM (30) is in contact with the primary backing layer (12). The shock absorption component (20) includes (i) a cushioning layer (40) and (ii) a shockpad (50). The 3DRLM (30) in the cushioning layer (40) has an apparent density that is greater than the apparent density of the 3DRLM (30) in the shockpad (50).
    Type: Application
    Filed: December 28, 2018
    Publication date: March 4, 2021
    Inventors: David Lopez, Eduardo Alvarez, Joseph L. Deavenport, Viraj K. Shah, Kurt A. Koppi
  • Publication number: 20200199784
    Abstract: An artificial turf filament comprising one or more ethylene/alpha-olefin copolymers having a density of from 0.900 to 0.955 g/cc and a melt index, I2, as measured in accordance with ASTM D1238 (at 190° C. and 2.16 kg), of from 0.1 g/10 min to 20 g/10 min; an ethoxylated alcohol having the formula, R1(OCH2CH2)xOH, where x is an integer from 2 to 10 and R1 is a straight or branched chain alkyl of 20 to 50 carbon atoms; and a functionalized ethylene-based polymer.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 25, 2020
    Inventors: David Lopez, Eduardo Alvarez, Jesus Nieto, Barbara Bonavoglia
  • Publication number: 20200180841
    Abstract: The present disclosure provides a packaging article (10). In an embodiment, the packaging article comprises (A) a rigid container (12) having side walls (14) and a bottom wall (16), the walls defining a compartment (20), and (B) a sheet (22) of 3-dimensional random loop material (3DRLM) in the compartment. A food item (C) may be located in the compartment, the food item contacts the sheet of 3DRLM.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 11, 2020
    Inventors: Eduardo Alvarez, Maria Isabel Arroyo Villan, Shaun Parkinson, Viraj Shah
  • Publication number: 20200181853
    Abstract: An artificial turf filament comprising one or more ethylene/alpha-olefin copolymers having a density of from 0.900 to 0.955 g/cc and a melt index, I2, as measured in accordance with ASTM D1238 (at 190° C. and 2.16 kg), of from 0.1 g/10 min to 20 g/10 min; an ethoxylated alcohol having the formula, R1(OCH2CH2)xOH, where x is an integer from 2 to 10 and R1 is a straight or branched chain alkyl of 20 to 50 carbon atoms; and a chemical foaming agent.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 11, 2020
    Inventors: David Lopez, Eduardo Alvarez, Jesus Nieto, Barbara Bonavoglia