Patents by Inventor Changlai Yang

Changlai Yang 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: 11904515
    Abstract: Molded-in-color thermoplastic polyolefin (TPO) compositions useful for making automotive components, such as injection molded parts, as well as other articles of manufacture are described. The molded-in-color composition has a ?E* value?2.0 (compared to a painted color master), a gloss measured at 60° from about 76 to about 90 GU, a density ranging from about 0.9 to about 0.97 g/cm3, a melt mass flow rate from about 15 to about 40 g/10 min (ASTM D 1238, 230° C./2.16 kg), a flexural modulus between about 600 to about 2000 MPa, and an as-molded shrinkage between about 0.6% and about 1.4%. The compositions can be used to prepare molded-in-color components that can undergo additional clear coating steps as required by the automotive application. The clear coated molded-in-color components have a gloss measured at 20° from about 85 to about 95 GU and a gloss retention after mar between about 85% and about 93%.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 20, 2024
    Assignee: LyondellBasell Advanced Polymers Inc.
    Inventors: Peter J. Glenister, Quentin R. Boll, Perry J. Banta, Changlai Yang
  • Patent number: 11584846
    Abstract: The present disclosure generally relates to carbon fiber reinforced polyolefin compositions, which may have a relatively low density. The compositions may include a thermoplastic olefin, a filler component, a compatibilizer, and/or an additive package. In some embodiments, the filler component includes a plurality of carbon fibers. In addition, articles of manufacture and methods of making a carbon fiber reinforced polyolefin composition are provided.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: February 21, 2023
    Assignee: Equistar Chemicals, LP
    Inventors: Jue Lu, Changlai Yang, Michael J. Dammann
  • Publication number: 20210276233
    Abstract: Molded-in-color thermoplastic polyolefin (TPO) compositions useful for making automotive components, such as injection molded parts, as well as other articles of manufacture are described. The molded-in-color composition has a ?E* value?2.0 (compared to a painted color master), a gloss measured at 60° from about 76 to about 90 GU, a density ranging from about 0.9 to about 0.97 g/cm3, a melt mass flow rate from about 15 to about 40 g/10 min (ASTM D 1238, 230° C./2.16 kg), a flexural modulus between about 600 to about 2000 MPa, and an as-molded shrinkage between about 0.6% and about 1.4%. The compositions can be used to prepare molded-in-color components that can undergo additional clear coating steps as required by the automotive application. The clear coated molded-in-color components have a gloss measured at 20° from about 85 to about 95 GU and a gloss retention after mar between about 85% and about 93%.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 9, 2021
    Applicant: LYONDELLBASELL ADVANCED POLYMERS INC.
    Inventors: PETER J. GLENISTER, QUENTIN R. BOLL, PERRY J. BANTA, CHANGLAI YANG
  • Patent number: 10920056
    Abstract: Low density polyolefin compositions with improved stiffness, impact balance, and high dimensional stability are described. These compositions are useful for making automotive components, such as injection molded parts, as well as other articles of manufacture. The compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 55 wt. % to about 72 wt. %; (b) a first elastomer and a second elastomer that are not the same, wherein the combined weight percent of components (b) ranges from about 18 wt. % to about 33 wt. %; (c) a filler present in an amount ranging from about 6 wt. % to about 12 wt. %; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %, all wt. % are based on the total weight of the composition.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: February 16, 2021
    Assignee: Equistar Chemicals, LP
    Inventors: Jue Lu, Changlai Yang, Michael J. Dammann
  • Publication number: 20190382568
    Abstract: Low density polyolefin compositions with improved stiffness, impact balance, and high dimensional stability are described. These compositions are useful for making automotive components, such as injection molded parts, as well as other articles of manufacture. The compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 55 wt. % to about 72 wt. %; (b) a first elastomer and a second elastomer that are not the same, wherein the combined weight percent of components (b) ranges from about 18 wt. % to about 33 wt. %; (c) a filler present in an amount ranging from about 6 wt. % to about 12 wt. %; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %, all wt. % are based on the total weight of the composition.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 19, 2019
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: JUE LU, CHANGLAI YANG, MICHAEL J. DAMMANN
  • Patent number: 10385191
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: August 20, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Changlai Yang, Dongman Choi
  • Patent number: 10358547
    Abstract: The present disclosure generally relates to low density compositions useful for making automotive components, such as molded parts, as well as other articles of manufacture; such compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 53 wt. % to about 65 wt. %, based on a total weight of the composition; (b) a first elastomer, a second elastomer, and an impact-modifying compatibilizer, wherein the combined weight percent of components (b) ranges from about 27 wt. % to about 32 wt. %, based on the total weight of the composition; (c) a filler present in an amount ranging from about 5 wt. % to about 12 wt. %, based on the total weight of the composition; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 23, 2019
    Assignee: Equistar Chemicals, LP
    Inventors: Peter J. Glenister, Michael J. Dammann, Changlai Yang
  • Publication number: 20180319966
    Abstract: The present disclosure generally relates to carbon fiber reinforced polyolefin compositions, which may have a relatively low density. The compositions may include a thermoplastic olefin, a filler component, a compatibilizer, and/or an additive package. In some embodiments, the filler component includes a plurality of carbon fibers. In addition, articles of manufacture and methods of making a carbon fiber reinforced polyolefin composition are provided.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: JUE LU, CHANGLAI YANG, MICHAEL J. DAMMANN
  • Publication number: 20180134884
    Abstract: The present disclosure generally relates to low density compositions useful for making automotive components, such as molded parts, as well as other articles of manufacture; such compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 53 wt. % to about 65 wt. %, based on a total weight of the composition; (b) a first elastomer, a second elastomer, and an impact-modifying compatibilizer, wherein the combined weight percent of components (b) ranges from about 27 wt. % to about 32 wt. %, based on the total weight of the composition; (c) a filler present in an amount ranging from about 5 wt. % to about 12 wt. %, based on the total weight of the composition; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %.
    Type: Application
    Filed: January 9, 2018
    Publication date: May 17, 2018
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: PETER J. GLENISTER, MICHAEL J. DAMMANN, CHANGLAI YANG
  • Patent number: 9902846
    Abstract: The present disclosure generally relates to low density compositions useful for making automotive components, such as molded parts, as well as other articles of manufacture; such compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 53 wt. % to about 65 wt. %, based on a total weight of the composition; (b) a first elastomer, a second elastomer, and an impact-modifying compatibilizer, wherein the combined weight percent of components (b) ranges from about 27 wt. % to about 32 wt. %, based on the total weight of the composition; (c) a filler present in an amount ranging from about 5 wt. % to about 12 wt. %, based on the total weight of the composition; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: February 27, 2018
    Assignee: Equistar Chemicals, LP
    Inventors: Peter J. Glenister, Michael J. Dammann, Changlai Yang
  • Publication number: 20180016428
    Abstract: The present disclosure generally relates to low density compositions useful for making automotive components, such as molded parts, as well as other articles of manufacture; such compositions comprise (a) a polyolefin comprising polypropylene, a propylene-ethylene block copolymer, or combinations thereof, wherein the polyolefin blend is present in an amount ranging from about 53 wt. % to about 65 wt. %, based on a total weight of the composition; (b) a first elastomer, a second elastomer, and an impact-modifying compatibilizer, wherein the combined weight percent of components (b) ranges from about 27 wt. % to about 32 wt. %, based on the total weight of the composition; (c) a filler present in an amount ranging from about 5 wt. % to about 12 wt. %, based on the total weight of the composition; and (d) an additive package present in an amount ranging from about 0.5 wt. % to about 5 wt. %.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: PETER J. GLENISTER, MICHAEL J. DAMMANN, CHANGLAI YANG
  • Publication number: 20170226328
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: EQUISTAR CHEMICALS, LP
    Inventors: CHANGLAI YANG, DONGMAN CHOI
  • Patent number: 9708471
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 18, 2017
    Assignee: Equistar Chemicals, LP
    Inventors: Changlai Yang, Dongman Choi
  • Publication number: 20150045479
    Abstract: The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventors: Changlai Yang, Dongman Choi