Patents by Inventor Dong WAN

Dong WAN 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: 12577382
    Abstract: The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ?50° C. as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand/water slurry with a mass ratio of 3:2, test duration 7 h, of ?0.50 wt %. The invention also relates to a slurry transportation pipe comprising the thermoplastic material as its inner layer, or consisting of the thermoplastic material.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: March 17, 2026
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Dong Wan, Maria Soliman, Hongtao Shi, Kai Guo
  • Publication number: 20250154347
    Abstract: A polyolefin composition includes: a) ?65.0 wt. % and ?94.0 wt. % of an ethylene alpha-olefin co-polymer (A); and b) ?6.0 wt. % and ?35.0 wt. % of an ethylene polymer (B). A foamed article contains such a polyolefin composition. The foamed article is obtained by compression foaming a foamable polyolefin composition or a foamable thermoplastic polymer composition. The foamed article can be used for improving the fatigue resistance and mechanical properties of midsole used in a footwear.
    Type: Application
    Filed: December 12, 2022
    Publication date: May 15, 2025
    Inventors: Maria SOLIMAN, Dong WAN, Kai GUO, You Jun WU, Hongtao SHI, Ji ZHOU
  • Patent number: 11814505
    Abstract: A pipe- or tube-shaped article having an innermost layer, wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cm3 as determined by ASTM D1505 and b) an olefin polymer selected from high-density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 14, 2023
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Dongbo Xing, Hongtao Shi, Kai Guo, Xiqiang Liu, Dong Wan, Maria Soliman
  • Publication number: 20230203285
    Abstract: The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ?50° C. as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand/water slurry with a mass ratio of 3:2, test duration 7 h, of ?0.50 wt %. The invention also relates to a slurry transportation pipe comprising the thermoplastic material as its inner layer, or consisting of the thermoplastic material.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 29, 2023
    Inventors: Dong WAN, Maria SOLIMAN, Hongtao SHI, Kai GUO
  • Patent number: 11332604
    Abstract: The invention relates to composition comprising (A) a propylene-based polymer, (B1) a first elastomer of ethylene and ?-olefin comonomer having 4 to 10 carbon atoms, (B2) a second elastomer of ethylene and ?-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (B1) the first elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 5 to 50 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein (B2) the second elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 0.55 to 4 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein the total amount of (B1) the first elastomer and (B2) the second elastomer is 2 to 30 wt % based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt % based on the total composition.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 17, 2022
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Ting Huang, Hongtao Shi, Yang Fu, Maria Soliman, Dong Wan
  • Publication number: 20210122907
    Abstract: The invention relates to composition comprising (A) a propylene-based polymer, (B1) a first elastomer of ethylene and ?-olefin comonomer having 4 to 10 carbon atoms, (B2) a second elastomer of ethylene and ?-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (B1) the first elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 5 to 50 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein (B2) the second elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 0.55 to 4 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein the total amount of (B1) the first elastomer and (B2) the second elastomer is 2 to 30 wt % based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt % based on the total composition.
    Type: Application
    Filed: August 3, 2018
    Publication date: April 29, 2021
    Inventors: Ting Huang, Hongtao Shi, Yang Fu, Maria Soliman, Dong Wan
  • Publication number: 20210079203
    Abstract: A pipe- or tube-shaped article having an innermost layer, wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cm3 as determined by ASTM D1505 and b) an olefin polymer selected from high-density polyethylene HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof.
    Type: Application
    Filed: January 15, 2019
    Publication date: March 18, 2021
    Inventors: Dongbo XING, Hongtao SHI, Kai GUO, Xiqiang LIU, Dong WAN, Maria SOLIMAN