Patents by Inventor Liangkai Ma

Liangkai Ma 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: 11945635
    Abstract: The present disclosure provides a flexible container (10). In an embodiment, the flexible container includes a front panel (22), a rear panel (24), a first gusseted side panel (18), and a second gusseted side panel (20). The gusseted side panels adjoin the front panel and the rear panel along peripheral seals (41) to form a chamber. The panels form (i) a top portion, (ii) a body portion, and (iii) a bottom portion. The top portion comprises a neck (27) and a fitment (30) in the neck. The front panel comprises a front handle (82) extending therefrom and the rear panel comprises a rear handle (84) extending therefrom. The front handle and the rear handle are in opposing relation to each other, the front handle and the rear handle extending over the first gusseted side panel.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 2, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Marc S. Black, Liangkai Ma, Simon Jespersen, Muhammad Ali Siddiqui, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Patent number: 11807423
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes (A) a front panel, a rear panel, a first gusseted side panel, and a second gusseted side panel. The gusseted side panels adjoin the front panel and the rear panel along peripheral seals to form a chamber. Each peripheral seal has (i) a body seal inner edge (BSIE) with opposing ends, (ii) a top tapered seal inner edge (t-TSIE) extending from a top end of each BSIE, (iii) a neck seal inner edge (NSIE) extending from a top end of each t-TSIE, (iv) a neck arc extending between each NSIE and t-TSIE, and (v) a plane (N) extending through each neck arc. Each NSIE forms a neck angle with the plane (N), and the neck angle is from 45° to less than 90°.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: November 7, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Liangkai Ma, Marc S. Black, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Patent number: 11655091
    Abstract: The present disclosure provides a flexible container (10). In an embodiment, the flexible container includes: a front panel (22), a rear panel (24), a first gusseted side panel (18), and a second gusseted side panel (20). The gusseted side panels adjoin the front panel and the rear panel along peripheral seals (41) to form (i) a top portion, (ii) a body portion, and (iii) a bottom portion. The top portion comprises a neck (27) and a fitment (30) in the neck. The top portion comprises a top handle (12) extending above the fitment, the top handle having a reciprocal attachment member (5). The bottom portion comprises a bottom handle (14) and a tether (6) extending from the bottom handle. A distal end of the tether has an attachment member (7), the attachment member adapted to secure to the reciprocal attachment member.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 23, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Liangkai Ma, Marc S. Black, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Publication number: 20220250799
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes (A) a front panel, a rear panel, a first gusseted side panel, and a second gusseted side panel. The gusseted side panels adjoin the front panel and the rear panel along peripheral seals to form a chamber. Each peripheral seal has (i) a body seal inner edge (BSIE) with opposing ends, (ii) a top tapered seal inner edge (t-TSIE) extending from a top end of each BSIE, (iii) a neck seal inner edge (NSIE) extending from a top end of each t-TSIE, (iv) a neck arc extending between each NSIE and t-TSIE, and (v) a plane (N) extending through each neck arc. Each NSIE forms a neck angle with the plane (N), and the neck angle is from 45° to less than 90°.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 11, 2022
    Inventors: Liangkai Ma, Marc S. Black, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Publication number: 20220227558
    Abstract: The present disclosure provides a flexible container (10). In an embodiment, the flexible container includes: a front panel (22), a rear panel (24), a first gusseted side panel (18), and a second gusseted side panel (20). The gusseted side panels adjoin the front panel and the rear panel along peripheral seals (41) to form (i) a top portion, (ii) a body portion, and (iii) a bottom portion. The top portion comprises a neck (27) and a fitment (30) in the neck. The top portion comprises a top handle (12) extending above the fitment, the top handle having a reciprocal attachment member (5). The bottom portion comprises a bottom handle (14) and a tether (6) extending from the bottom handle. A distal end of the tether has an attachment member (7), the attachment member adapted to secure to the reciprocal attachment member.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 21, 2022
    Inventors: Liangkai Ma, Marc S. Black, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Publication number: 20220227556
    Abstract: The present disclosure provides a flexible container (10). In an embodiment, the flexible container includes a front panel (22), a rear panel (24), a first gusseted side panel (18), and a second gusseted side panel (20). The gusseted side panels adjoin the front panel and the rear panel along peripheral seals (41) to form a chamber. The panels form (i) a top portion, (ii) a body portion, and (iii) a bottom portion. The top portion comprises a neck (27) and a fitment (30) in the neck. The front panel comprises a front handle (82) extending therefrom and the rear panel comprises a rear handle (84) extending therefrom. The front handle and the rear handle are in opposing relation to each other, the front handle and the rear handle extending over the first gusseted side panel.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 21, 2022
    Inventors: Marc S. Black, Liangkai Ma, Simon Jespersen, Muhammad Ali Siddiqui, Chad V. Schuette, Brian W. Walther, Fabrice Digonnet
  • Patent number: 11186047
    Abstract: The disclosure provides for a method including: a) forming a layered tubular member (12) by placing one or more outer layers (16) about an inner layer (14) and joining at one or more seams (56) along a length of the layered tubular member, wherein the one or more outer layers include a first resin impregnated therein; b) applying the first resin or a second resin at the one or more seams; c) creating one or more fillets (58) along the one or more seams with the first resin, the second resin, or an adhesive; and d) curing the first resin, the second resin, and the adhesive so that the layered tubular member, the first resin, the second resin, and the adhesive form a composite structure having a tubular shape.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 30, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Jay M. Tudor, David H. Bank, Jeffery D. Zawisza, Peter J. Schulz, Liangkai Ma, Mark Pijaszek, Mark Mirgon
  • Publication number: 20200391449
    Abstract: The disclosure provides for a method including: a) forming a layered tubular member (12) by placing one or more outer layers (16) about an inner layer (14) and joining at one or more seams (56) along a length of the layered tubular member, wherein the one or more outer layers include a first resin impregnated therein; b) applying the first resin or a second resin at the one or more seams; c) creating one or more fillets (58) along the one or more seams with the first resin, the second resin, or an adhesive; and d) curing the first resin, the second resin, and the adhesive so that the layered tubular member, the first resin, the second resin, and the adhesive form a composite structure having a tubular shape.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 17, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Jay M. Tudor, David H. Bank, Jeffery D. Zawisza, Peter J. Schulz, Liangkai Ma, Mark Pijaszek, Mark Mirgon
  • Patent number: 10668670
    Abstract: The present disclosure provides a process. In an embodiment, the process includes (A) providing a fitment with a base having a wall thickness (Tw). The base comprises an ethylene/a olefin multi-block copolymer. The process includes (B) placing the base between two opposing multilayer films. Each multilayer film has a respective seal layer comprising an olefin-based polymer. The process includes (C) positioning the base and opposing multilayer films between opposing seal bars. Each seal bar comprises (i) a front surface, (ii) a recessed surface a distance (x) behind the front surface, the recessed surface having a first end and an opposing second end. Each seal bar comprises (iii) a curved surface at each opposing end. The curved surface extends between the front surface and the recessed surface. Each curved surface has a radius of curvature (Rc) greater than or equal to distance (x). The process includes (D) heat sealing the base to each multilayer film.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: June 2, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Marcos Pini Franca, Bruno Rufato Pereira, Raimund Gerstner, Liangkai Ma
  • Patent number: 10399253
    Abstract: A multi-layered composite mold structure (10) is provided. The multi-layered composite mold structure (10) comprises a multi-layered member including (a) at least one metal heating layer (11); (b) at least one metal heat distribution layer (13); (c) at least one laminate composite layer (12); and (d) a surface layer (14). A process for preparing the multi-layered composite mold structure is also provided.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: September 3, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Demei Xie, Liangkai Ma
  • Publication number: 20190062022
    Abstract: The present disclosure provides a seal bar. In an embodiment, the seal bar comprises a base member having a flat front surface and a flat recessed surface a distance (d) behind the front surface. The front surface defines an x-axis, X. The flat recessed surface has a first endpoint (A1), wherein an axis that is perpendicular to the flat recessed surface at the first endpoint (A1) defines a first y-axis (Y1). The seal bar has a concave surface extending the distance (d) between the first endpoint (A1) and a point (B1) on the flat front surface. The concave surface defines a quadrant arc segment of an ellipse between the first endpoint (A1) and the point (B1).
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Liangkai Ma, Sam L. Crabtree, Jorge Caminero Gomes, Mark H. Mirgon, Marc S. Black, Mark O. Labonville, Matthew J. Turpin, Matthew J. Heath, Cory M. Saylor, Leigh Anne VanSumeren, Nicolas Cardoso Mazzola
  • Patent number: 10173813
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes a first multilayer film and a second multilayer film. Each multilayer film comprises an inner seal layer. The multilayer films are arranged such that the seal layers oppose each other and the second multilayer film is superimposed on the first multilayer film. The multilayer films are sealed along a common peripheral edge. The flexible container includes an orifice in one of the multilayer films, and a pop-up spout extends through the orifice. The pop-up spout has a flange sealed to the multilayer film around the orifice. The pop-up spout comprises an ethylene/?-olefin multi-block copolymer.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 8, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Liangkai Ma, Jorge Caminero Gomes, Scott R. Kaleyta, Daniel Ramirez, Ronald K. Jenkins, Kevin L. Church, Jeffrey D. Zawisza, Sam L. Crabtree, Keith L. Kauffmann, Peter J. Schulz, John F. Kohn, Chad V. Schuette
  • Patent number: 10173821
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes a first multilayer film and a second multilayer film. Each multilayer film comprises a seal layer. The multilayer films are arranged such that the seal layers oppose each other and the second multilayer film is superimposed on the first multilayer film. The multilayer films are sealed along a common peripheral edge. The flexible container includes a fitment. The fitment comprises a base. The base comprises a polymeric blend of from 60 wt % to 90 wt % ethylene/?-olefin multi-block copolymer and from 40 wt % to 10 wt % high density polyethylene (HDPE). The flexible container includes a fitment seal comprising the base located between the multilayer films. The base is sealed to each multilayer film at a portion of the common peripheral edge.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 8, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Liangkai Ma, Sam L. Crabtree, Jorge Caminero Gomes, Mark H. Mirgon, Marc S. Black, Mark O. Labonville, Matthew J. Turpin, Matthew J. Heath, Cory M. Saylor, Leigh Anne A. VanSumeren, Nicolas Cardoso Mazzola
  • Patent number: 10155615
    Abstract: The present disclosure provides a seal bar. In an embodiment, the seal bar comprises a base member having a flat front surface and a flat recessed surface a distance (d) behind the front surface. The front surface defines an x-axis, X. The flat recessed surface has a first endpoint (A1), wherein an axis that is perpendicular to the flat recessed surface at the first endpoint (A1) defines a first y-axis (Y1). The seal bar has a concave surface extending the distance (d) between the first endpoint (A1) and a point (B1) on the flat front surface. The concave surface defines a quadrant arc segment of an ellipse between the first endpoint (A1) and the point (B1).
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: December 18, 2018
    Inventors: Liangkai Ma, Sam L. Crabtree, Jorge Caminero Gomes, Mark H. Mirgon, Marc S. Black, Mark O. Labonville, Matthew J. Turpin, Matthew J. Heath, Cory M. Saylor, Leigh Anne A. VanSumeren, Nicolas Cardoso Mazzola
  • Publication number: 20180086515
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes a first multilayer film and a second multilayer film. Each multilayer film comprises an inner seal layer. The multilayer films are arranged such that the seal layers oppose each other and the second multilayer film is superimposed on the first multilayer film. The multilayer films are sealed along a common peripheral edge. The flexible container includes an orifice in one of the multilayer films, and a pop-up spout extends through the orifice. The pop-up spout has a flange sealed to the multilayer film around the orifice. The pop-up spout comprises an ethylene/?-olefin multi-block copolymer.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Liangkai Ma, Jorge Caminero Gomes, Scott R. Kaleyta, Daniel Ramirez, Ronald K. Jenkins, Kevin L. Church, Jeffrey D. Zawisza, Sam L. Crabtree, Keith L. Kauffmann, Peter J. Schulz, John F. Kohn, Chad V. Schuette
  • Publication number: 20180086527
    Abstract: The present disclosure provides a flexible container. In an embodiment, the flexible container includes a first multilayer film and a second multilayer film. Each multilayer film comprises a seal layer. The multilayer films are arranged such that the seal layers oppose each other and the second multilayer film is superimposed on the first multilayer film. The multilayer films are sealed along a common peripheral edge. The flexible container includes a fitment. The fitment comprises a base. The base comprises a polymeric blend of from 60 wt % to 90 wt % ethylene/?-olefin multi-block copolymer and from 40 wt % to 10 wt % high density polyethylene (HDPE). The flexible container includes a fitment seal comprising the base located between the multilayer films. The base is sealed to each multilayer film at a portion of the common peripheral edge.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 29, 2018
    Inventors: Liangkai Ma, Sam L. Crabtree, Jorge Caminero Gomes, Mark H. Mirgon, Marc S. Black, Mark O. Labonville, Matthew J. Turpin, Matthew J. Heath, Cory M. Saylor, Leigh Anne A. VanSumeren, Nicolas Cardoso Mazzola
  • Publication number: 20180086528
    Abstract: The present disclosure provides a seal bar. In an embodiment, the seal bar comprises a base member having a flat front surface and a flat recessed surface a distance (d) behind the front surface. The front surface defines an x-axis, X. The flat recessed surface has a first endpoint (A1), wherein an axis that is perpendicular to the flat recessed surface at the first endpoint (A1) defines a first y-axis (Y1). The seal bar has a concave surface extending the distance (d) between the first endpoint (A1) and a point (B1) on the flat front surface. The concave surface defines a quadrant arc segment of an ellipse between the first endpoint (A1) and the point (B1).
    Type: Application
    Filed: September 26, 2016
    Publication date: March 29, 2018
    Inventors: Liangkai Ma, Sam L. Crabtree, Jorge Caminero Gomes, Mark H. Mirgon, Marc S. Black, Mark O. Labonville, Matthew J. Turpin, Matthew J. Heath, Cory M. Saylor, Leigh Anne A. VanSumeren, Nicolas Cardoso Mazzola
  • Publication number: 20180043584
    Abstract: The present invention relates to a process to reduce internal stresses in insulation molded onto complex pipes, preferably complex subsea pipe, to reduce cracking in the molded insulation. Insulation materials applies to complex pipes comprising branches, i.e., valves, and the like, may be susceptible to cracking at, or near where the branch connects to the pipe as the coating of insulation material cures or hardens. The process of the present invention aims to reduce post molded cracking by reducing molded in stress at the branch/pipe junction. This is accomplished by providing a preform at or near a branch/pipe junction prior to applying the coating of insulation material.
    Type: Application
    Filed: March 18, 2016
    Publication date: February 15, 2018
    Inventors: Jie Feng, Mark W. Brown, Xue Chen, Pankaj Gupta, Dwight D. Latham, Liangkai Ma, Michael T. Malanga, Rujul M. Mehta, Kamesh R. Vyakaranam, Jeffrey D. Wenzel, Jeffery D. Zawisza
  • Patent number: 9701456
    Abstract: The present disclosure provides a flexible container. In an embodiment, a flexible container is provided and includes a first multilayer film and a second multilayer film. Each multilayer film has an inner seal layer. The multilayer films are arranged such that the seal layers oppose each other and the second multilayer film is superimposed on the first multilayer film. The multilayer films are sealed along a common peripheral edge. An orifice is present in one of the multilayer films. The flexible container includes an extendable spout extending through the orifice. The extendable spout has a flange sealed to the inner seal layer of the multilayer film at the orifice. The extendable spout is composed of, or is otherwise formed from, an ethylene/?-olefin multi-block copolymer.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 11, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Marcos Franca, Bruno Rufato Pereira, Liangkai Ma, Sam L. Crabtree
  • Publication number: 20170120552
    Abstract: The present disclosure provides a process. In an embodiment, the process includes (A) providing a fitment with a base having a wall thickness (Tw). The base comprises an ethylene/a olefin multi-block copolymer. The process includes (B) placing the base between two opposing multilayer films. Each multilayer film has a respective seal layer comprising an olefin-based polymer. The process includes (C) positioning the base and opposing multilayer films between opposing seal bars. Each seal bar comprises (i) a front surface, (ii) a recessed surface a distance (x) behind the front surface, the recessed surface having a first end and an opposing second end. Each seal bar comprises (iii) a curved surface at each opposing end. The curved surface extends between the front surface and the recessed surface. Each curved surface has a radius of curvature (Rc) greater than or equal to distance (x). The process includes (D) heat sealing the base to each multilayer film.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Marcos Pini Franca, Bruno Rufato Pereira, Raimund Gerstner, Liangkai Ma