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).
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Patent number: 11951716Abstract: 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: GrantFiled: April 1, 2021Date of Patent: April 9, 2024Assignee: Johns ManvilleInventors: Diego Pedrazzoli, Lichih R Peng, Lance Wang, Jawed Asrar
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Publication number: 20230083883Abstract: 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: ApplicationFiled: September 1, 2022Publication date: March 16, 2023Inventors: Lichih R. Peng, Jordan Kortmeyer, ChangQing Shen, Lance Wang, Jawed Asrar
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Patent number: 11578197Abstract: 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: GrantFiled: April 14, 2021Date of Patent: February 14, 2023Assignee: Johns ManvilleInventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Publication number: 20220314585Abstract: 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: ApplicationFiled: April 1, 2021Publication date: October 6, 2022Inventors: Diego Pedrazzoli, Lichih R. Peng, Lance Wang, Jawed Asrar
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Patent number: 11286380Abstract: 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: GrantFiled: February 27, 2020Date of Patent: March 29, 2022Assignee: Johns ManvilleInventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Patent number: 11130854Abstract: 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: GrantFiled: October 2, 2018Date of Patent: September 28, 2021Assignee: Johns ManvilleInventors: Jordan Kortmeyer, Lichih R Peng
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Publication number: 20210230410Abstract: 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: ApplicationFiled: April 14, 2021Publication date: July 29, 2021Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Patent number: 10844200Abstract: 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: GrantFiled: October 9, 2017Date of Patent: November 24, 2020Assignee: Johns ManvilleInventors: Jordan Kortmeyer, Lichih R Peng
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Publication number: 20200199337Abstract: 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: ApplicationFiled: February 27, 2020Publication date: June 25, 2020Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Patent number: 10647839Abstract: 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: GrantFiled: November 16, 2018Date of Patent: May 12, 2020Assignee: Johns ManvilleInventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Patent number: 10619037Abstract: 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: GrantFiled: November 21, 2017Date of Patent: April 14, 2020Assignee: Johns ManvilleInventors: Lichih R Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Publication number: 20190153202Abstract: 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: ApplicationFiled: November 16, 2018Publication date: May 23, 2019Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Publication number: 20190153201Abstract: 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: ApplicationFiled: November 21, 2017Publication date: May 23, 2019Inventors: Lichih R. Peng, Jordan Kortmeyer, Lance Wang, Jawed Asrar
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Publication number: 20190106559Abstract: 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: ApplicationFiled: October 2, 2018Publication date: April 11, 2019Inventors: Jordan Kortmeyer, Lichih R. Peng
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Publication number: 20190106556Abstract: 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: ApplicationFiled: October 9, 2017Publication date: April 11, 2019Inventors: Jordan Kortmeyer, Lichih R. Peng
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Patent number: 10081945Abstract: 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: GrantFiled: January 16, 2014Date of Patent: September 25, 2018Assignee: Johns ManvilleInventors: Lichih R Peng, Zebonie Sukle, Jordan Kortmeyer, Thomas Justin Stock
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Patent number: 9376769Abstract: 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: GrantFiled: February 28, 2011Date of Patent: June 28, 2016Assignee: Columbia Insurance CompanyInventors: 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
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Publication number: 20160122943Abstract: 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: ApplicationFiled: June 8, 2015Publication date: May 5, 2016Inventors: Julie Brumbelow, Von Moody, Wesley W. Mullinax, John O. Bieser, James D. Goins, David C. Kelley, Lichih R. Peng, Robert R. Turley
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Patent number: 9051683Abstract: 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: GrantFiled: November 23, 2010Date of Patent: June 9, 2015Assignee: Columbia Insurance CompanyInventors: Julie Brumbelow, Von Moody, Wesley W. Mullinax, John O. Bieser, James D. Goins, David C. Kelley, Lichih R. Peng, Robert R. Turley
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Patent number: 8900718Abstract: 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: GrantFiled: December 5, 2012Date of Patent: December 2, 2014Assignee: Johns ManvilleInventor: Lichih R Peng