Patents by Inventor Lichih R. Peng

Lichih R. Peng 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).

  • Patent number: 11951716
    Abstract: A roofing membrane includes a thermoplastic polyolefin (TPO) layer and a polyvinyl chloride (PVC) layer. The TPO layer forms a bottom layer of the roofing membrane, and the PVC layer is positioned atop the TPO layer so that the PVC layer forms a top layer of the roofing membrane. The TPO layer and the PVC layer are configured to be chemically compatible so that the TPO layer and the PVC layer are chemically bonded and function as a single roofing membrane. Compatibilizing includes at least one of (i) adding a compatibilizing agent to at least one of the TPO material and the PVC material prior to extrusion and (ii) positioning at least one compatibilizing film, prior to bonding, between the TPO material and the PVC material.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 9, 2024
    Assignee: Johns Manville
    Inventors: Diego Pedrazzoli, Lichih R Peng, Lance Wang, Jawed Asrar
  • Publication number: 20230083883
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a polypropylene polymer, generally comprising a random polypropylene copolymer, and a compatibilizer. In one embodiment, there is provided a polymer blend composition comprising 15 to 35 wt % of a polypropylene polymer, 30-60 wt % of a linear low density polyethylene, and a compatibilizer polymer composition comprising 21-50 wt % of the polymer blend. The polymer blend is quite useful in a roofing membrane.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 16, 2023
    Inventors: Lichih R. Peng, Jordan Kortmeyer, ChangQing Shen, Lance Wang, Jawed Asrar
  • Patent number: 11578197
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: February 14, 2023
    Assignee: Johns Manville
    Inventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Publication number: 20220314585
    Abstract: A roofing membrane includes a thermoplastic polyolefin (TPO) layer and a polyvinyl chloride (PVC) layer. The TPO layer forms a bottom layer of the roofing membrane, and the PVC layer is positioned atop the TPO layer so that the PVC layer forms a top layer of the roofing membrane. The TPO layer and the PVC layer are configured to be chemically compatible so that the TPO layer and the PVC layer are chemically bonded and function as a single roofing membrane. Compatibilizing includes at least one of (i) adding a compatibilizing agent to at least one of the TPO material and the PVC material prior to extrusion and (ii) positioning at least one compatibilizing film, prior to bonding, between the TPO material and the PVC material.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 6, 2022
    Inventors: Diego Pedrazzoli, Lichih R. Peng, Lance Wang, Jawed Asrar
  • Patent number: 11286380
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 29, 2022
    Assignee: Johns Manville
    Inventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Patent number: 11130854
    Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 20 to 55 weight percent of the high density polyethylene, from 20 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: September 28, 2021
    Assignee: Johns Manville
    Inventors: Jordan Kortmeyer, Lichih R Peng
  • Publication number: 20210230410
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Patent number: 10844200
    Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 25 to 55 weight percent of the high density polyethylene, from 25 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 24, 2020
    Assignee: Johns Manville
    Inventors: Jordan Kortmeyer, Lichih R Peng
  • Publication number: 20200199337
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Patent number: 10647839
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 20 to 65 weight percent of a propylene polymer having from 10-60% crystallinity, 30-60 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 12, 2020
    Assignee: Johns Manville
    Inventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Patent number: 10619037
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 14, 2020
    Assignee: Johns Manville
    Inventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Publication number: 20190153202
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 20 to 65 weight percent of a propylene polymer having from 10-60% crystallinity, 30-60 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Publication number: 20190153201
    Abstract: Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 23, 2019
    Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
  • Publication number: 20190106559
    Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 20 to 55 weight percent of the high density polyethylene, from 20 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 11, 2019
    Inventors: Jordan Kortmeyer, Lichih R. Peng
  • Publication number: 20190106556
    Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 25 to 55 weight percent of the high density polyethylene, from 25 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.
    Type: Application
    Filed: October 9, 2017
    Publication date: April 11, 2019
    Inventors: Jordan Kortmeyer, Lichih R. Peng
  • Patent number: 10081945
    Abstract: According to one embodiment, a roofing membrane laminate includes a first layer of an uncured ethylene propylene diene monomer rubber (EPDM) material and a second layer of a thermoplastic polyolefin (TPO) material coupled with the EPDM material. The EPDM material has a thickness of between about 50 mils and 70 mils and the TPO material has a thickness of between about 15 mils and 35 mils. The EPDM material and TPO material are coupled via crosslinking of the TPO and EPDM material at an interface thereof, whereby at least a top portion of the EPDM material is cured via the application of heat after the EPDM material and TPO material are placed into contact so as to effect crosslinking of the materials.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: September 25, 2018
    Assignee: Johns Manville
    Inventors: Lichih R Peng, Zebonie Sukle, Jordan Kortmeyer, Thomas Justin Stock
  • Patent number: 9376769
    Abstract: Disclosed herein are carpets and carpet tiles comprising a primary backing material having a face and a back side; a plurality of fibers attached to the primary backing material and extending from the face of the primary backing material and exposed at the back side of the primary backing material; and an adhesive composition. The adhesive composition generally comprises at least one homogenously branched ethylene polymer. Also disclosed are methods for manufacturing the disclosed carpets and carpet tiles.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 28, 2016
    Assignee: Columbia Insurance Company
    Inventors: John O. Bieser, Joseph A. Dibbern, Charles F. Diehl, James D. Goins, David C. Kelley, Rexford A. Maugans, Osborne K. McKinney, Lichih R. Peng, Robert R. Turley
  • Publication number: 20160122943
    Abstract: The present invention pertains to carpet and method of making it. In one aspect, the carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one homogeneously branched linear ethylene polymer. The method includes extrusion coating at least one homogeneously branched linear ethylene polymer onto the back surface of a primary backing to provide an adhesive backing. The method can include additional steps or procedures, either separately or in various combinations.
    Type: Application
    Filed: June 8, 2015
    Publication date: May 5, 2016
    Inventors: Julie Brumbelow, Von Moody, Wesley W. Mullinax, John O. Bieser, James D. Goins, David C. Kelley, Lichih R. Peng, Robert R. Turley
  • Patent number: 9051683
    Abstract: The present invention pertains to carpet and method of making it. In one aspect, the carpet includes (a) a primary backing which has a face and a back surface, (b) a plurality of fibers attached to the primary backing and extending from the face of the primary backing and exposed at the back surface of the primary backing, (c) an adhesive backing, (d) an optional secondary backing adjacent to the adhesive backing, and (e) at least one homogeneously branched linear ethylene polymer. The method includes extrusion coating at least one homogeneously branched linear ethylene polymer onto the back surface of a primary backing to provide an adhesive backing. The method can include additional steps or procedures, either separately or in various combinations.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: June 9, 2015
    Assignee: Columbia Insurance Company
    Inventors: Julie Brumbelow, Von Moody, Wesley W. Mullinax, John O. Bieser, James D. Goins, David C. Kelley, Lichih R. Peng, Robert R. Turley
  • Patent number: 8900718
    Abstract: Embodiments of the invention provide improved roofing membranes and methods and systems involving the same. According to one embodiment, a roofing membrane laminate is provided. The roofing membrane laminate includes a first membrane layer that includes a thermoplastic polyolefin material and a second membrane layer positioned atop the first membrane layer and bonded thereto. The second membrane layer includes a thermoplastic polyolefin material and an acrylate additive blended with the thermoplastic polyolefin material. The acrylate additive is blended with the thermoplastic polyolefin material while both materials are resins and is added so as to comprise 10% by weight or less of the blended resins. The acrylate additive includes an ethylene backbone chain and an acrylate bonded with the ethylene backbone chain.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: December 2, 2014
    Assignee: Johns Manville
    Inventor: Lichih R Peng