Patents by Inventor Li Pi Shan

Li Pi Shan 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).

  • Publication number: 20190055386
    Abstract: A modifier for forming sub-ambient temperature use containers includes (a) from 10 wt % to 50 wt % of a block composite, a specified block composite, or a crystalline block composite, (b) from 20 wt % to 90 wt % of a first polyolefin copolymer, the first polyolefin copolymer being derived from ethylene and at least one of a C3 to C10 alpha-olefin, having a melt index from 0.5 g/10 min to 1500 g/10 min, and having a density from 0.850 g/cm3 to 0.910 g/cm3, and (c) optionally, from 30 wt % to 70 wt % of a second polyolefin copolymer, the second polyolefin copolymer being derived from ethylene and at least one of a C3 to C10 alpha-olefin, having a melt index from 100 g/10 min to 2000 g/10 min, and having a density from 0.860 g/cm3 to 0.900 g/cm3.
    Type: Application
    Filed: March 31, 2017
    Publication date: February 21, 2019
    Inventors: Colin Li Pi Shan, Jihean Lee, Raymond L. Laakso, Jr., Yushan Hu, Eddy I. Garcia-Meitin
  • Publication number: 20190027269
    Abstract: Crosslinkable polymeric compositions comprising (a) 10 to 89 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a high-shear viscosity (V100) at 190 C and 10% strain of 1,200 Pa·s or less, (iii) a shear thinning ratio (V0.1/V100) at 190 C and 10% strain of at least 8, and (iv) a melt index (I2) greater than 1 g/10 minutes; and (b) 10 to less than 90 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.
    Type: Application
    Filed: August 22, 2016
    Publication date: January 24, 2019
    Inventors: Bharat I. Chaudhary, Juan C. Tuberquia, Rennisha Wickham, Philip P. Fontaine, Colin Li Pi Shan, Morgan M. Hughes, Jan Bazen, Edward O. Madenjian, Gregory J. Brennan
  • Patent number: 10155889
    Abstract: A hot melt adhesive (HMA) composition includes (A) from 1-60 wt % of a block composite compatibilizer comprising (i) a hard polymer that includes propylene, (ii) a soft polymer that includes ethylene, and (iii) a block copolymer having a soft block and a hard block, the hard block of the block copolymer having the same composition as the hard polymer of the block composite compatibilizer and the soft block of the block copolymer having the same composition as the soft polymer of the block composite compatibilizer; (B) from 1-70 wt % of a tackifier; (C) from 1-40 wt % of at least one selected from the group of a wax and an oil; and (D) Optionally, from greater than zero to 97 wt % of a polymer component that includes an ethylene-based polymer and/or a propylene-based polymer.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 18, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Yi Jin, Kim L. Walton, Gary R. Marchand, Selim Yalvac, Allan Walter Mclennaghan, Burcak Conley, Dean Lee, Rongjuan Cong, Colin Li Pi Shan
  • Patent number: 10155862
    Abstract: A thermoplastic vulcanizate composition includes (a) a crystalline thermoplastic polyolefin comprising alpha-olefin monomers having from 2 to 5 carbon atoms, (b) a rubber block interpolymer comprising a first block and a second block having differing chemical or physical properties from the first block, the first block is derived from ethylene, a first alpha-olefin monomer having from 3 to 10 carbon atoms, and a first diene monomer having from 2 to 25 carbon atoms, the second block is derived from ethylene, a second alpha-olefin monomer having from 3 to 10 carbon atoms, and optionally a second diene monomer having from 2 to 25 carbon atoms, and an amount of the block interpolymer in the composition being greater than an amount of the thermoplastic polyolefin in the composition, and (c) a curative system.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: December 18, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Xiaosong Wu, Kim L. Walton, Colin Li Pi Shan
  • Publication number: 20180355224
    Abstract: A hot melt adhesive composition includes (A) 20-95 wt % of a polymer component including an ethylene-based polymer and a propylene based polymer, the ethylene-based polymer being present in an amount greater than 30 wt %, based on a total weight of the polymer component, and (B) 1-60 wt % of a crystalline block composite comprising (1) a crystalline ethylene based polymer, (2) a crystalline alpha-olefin based polymer derived from at least one of a C3-10 ? olefin, and (3) a block copolymer comprising 10-90 wt % of a crystalline ethylene block comprising 90 or more wt % units derived from ethylene and comprising 10-90 wt % of a crystalline alpha-olefin block comprising 90 or more wt % units derived from at least one of a C3-10 ? olefin, (C) Optionally, from greater than zero to 70 wt % tackifier, and (D) Optionally, from greater than zero to 40 wt % of at least one selected from the group of a wax and an oil.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 13, 2018
    Inventors: Livia Li Wen Chen, Colin Li Pi Shan, Selim Yalvac
  • Publication number: 20180312662
    Abstract: Crosslinkable polymeric compositions comprising (a) 10 to 99 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a high-shear viscosity (V100) at 190° C. and 10% strain of 1,200 Pa-s or less, and (iii) a shear thinning ratio (V0.1/V100) at 190° C. and 10% strain of at least 8; and (b) 0 to less than 10 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.
    Type: Application
    Filed: August 22, 2016
    Publication date: November 1, 2018
    Applicants: Dow Global Technologies LLC, Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Juan C. Tuberquia, Rennisha Wickham, Philip P. Fontaine, Colin Li Pi Shan, Morgan M. Hughes, Jan Bazen, Edward O. Madenjian, Gregory J. Brennan
  • Publication number: 20180258266
    Abstract: A composition comprising from 10 wt % to 86 wt % of an ethylene component including at least one ethylene based polymer having an ethylene content of at least 50.0 wt %, a melt index from 0.1 g/10 min to 100.0 g/10 min, and a density from 0.935 g/cm3 to 0.965 g/cm3; from 10 wt % to 86 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt % and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min; from 2 wt % to 22 wt % of an octene component including at least one octene based polymer having an octene content of at least 80 wt %; and from 2 wt % to 20 wt % of a composite component including at least one selected from the group of a crystalline block composite and a specified block composite, derived from at least ethylene and an alpha-olefin.
    Type: Application
    Filed: September 8, 2016
    Publication date: September 13, 2018
    Inventors: Yushan Hu, Kim L. Walton, Gary R. Marchand, Kyle Anderson, Colin Li Pi Shan
  • Publication number: 20180105626
    Abstract: The invention provides a process to form a polymer composition comprising at least one ethylene/?-olefin/non-conjugated polyene interpolymer, and wherein the polymer composition has at least the following properties: a) a Mw/V0.1 ratio greater than, or equal to, 1.80 (g/mol)/(Pa·s); said process comprising polymerizing one or more mixture(s) comprising ethylene, an ?-olefin and a non-conjugated polyene in the presence of a catalyst system comprising a metal-ligand complex of Formula (I), as described herein.
    Type: Application
    Filed: March 1, 2016
    Publication date: April 19, 2018
    Inventors: Philip P. Fontaine, Lixin Sun, Colin Li Pi Shan, Juan C. Tuberquia, Susan G. Brown, Edward O. Madenjian, Gregory J. Brennan
  • Publication number: 20180051165
    Abstract: A modifier for forming sub-ambient temperature use containers includes (a) from 20 wt % to 40 wt % of a block composite, the block composite including (i) an ethylene-propylene copolymer, (ii) an isotactic polypropylene polymer, and (iii) a block copolymer, (b) from 40 wt % to 60 wt % of a polyolefin copolymer, the polyolefin copolymer being derived from ethylene and at least one of a C3 to C10 alpha-olefin, having a melt index from 100 g/10 min to 1500 g/10 min, according to ASTM D1238 and at 190° C./2.16 kg, and having a density from 0.860 g/cm3 to 0.900 g/cm3, and (c) optionally, from 0 wt % to 30 wt % of at least one of a first additional copolymer that has a refractive index from 1.490 to 1.510 and a second additional copolymer that is miscible with polypropylene.
    Type: Application
    Filed: March 7, 2016
    Publication date: February 22, 2018
    Inventors: Colin Li Pi Shan, Raymond L. Laakso, JR., Eddy I. Garcia-Meitin
  • Publication number: 20180037731
    Abstract: A thermoplastic vulcanizate composition includes (a) a crystalline thermoplastic polyolefin comprising alpha-olefin monomers having from 2 to 5 carbon atoms, (b) a rubber block interpolymer comprising a first block and a second block having differing chemical or physical properties from the first block, the first block is derived from ethylene, a first alpha-olefin monomer having from 3 to 10 carbon atoms, and a first diene monomer having from 2 to 25 carbon atoms, the second block is derived from ethylene, a second alpha-olefin monomer having from 3 to 10 carbon atoms, and optionally a second diene monomer having from 2 to 25 carbon atoms, and an amount of the block interpolymer in the composition being greater than an amount of the thermoplastic polyolefin in the composition, and (c) a curative system.
    Type: Application
    Filed: December 11, 2015
    Publication date: February 8, 2018
    Inventors: Xiaosong Wu, Kim L. Walton, Colin Li Pi Shan
  • Publication number: 20170369691
    Abstract: A thermoplastic vulcanizate composition includes (A) greater than 15 wt % of a block composite that has (i) an ethylene/alpha-olefin/diene interpolymer in which the alpha-olefin is an alpha olefin monomer having from 3 to 10 carbon atoms and the diene is a diene monomer having from 2 to 25 carbon atoms, (ii) a propylene based polymer, and (iii) a block copolymer comprising a soft block and a hard block in which the soft block has the same composition as the ethylene/alpha-olefin/diene polymer and the hard block has the same composition as the propylene based polymer; and (B) a remainder of a curative system and optionally at least one of a vulcanizable elastomer, a thermoplastic polyolefin, and an oil.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 28, 2017
    Inventors: Xiaosong Wu, Colin Li Pi Shan, Kim L. Walton, Gary R. Marchand
  • Publication number: 20170240784
    Abstract: A hot melt adhesive (HMA) composition includes (A) from 1-60 wt % of a block composite compatibilizer comprising (i) a hard polymer that includes propylene, (ii) a soft polymer that includes ethylene, and (iii) a block copolymer having a soft block and a hard block, the hard block of the block copolymer having the same composition as the hard polymer of the block composite compatibilizer and the soft block of the block copolymer having the same composition as the soft polymer of the block composite compatibilizer; (B) from 1-70 wt % of a tackifier; (C) from 1-40 wt % of at least one selected from the group of a wax and an oil; and (D) Optionally, from greater than zero to 97 wt % of a polymer component that includes an ethylene-based polymer and/or a propylene-based polymer.
    Type: Application
    Filed: August 20, 2015
    Publication date: August 24, 2017
    Inventors: Yi Jin, Kim L. Walton, Gary R. Marchand, Salim Yalvac, Allan Walter Mclennaghan, Burcak Conley, Dean Lee, Rongjuan Cong, Colin LI Pi Shan
  • Patent number: 9511567
    Abstract: Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: December 6, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Yushan Hu, Burcak Conley, Kim L. Walton, Colin Li Pi Shan, Gary R. Marchand, Rajen M. Patel, Eva-Maria Kupsch, Brian W. Walther
  • Patent number: 9243090
    Abstract: A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: January 26, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Yunwa Wilson Cheung, David D. Devore, David D. Graf, Phillip D. Hustad, Roger L. Kuhlman, Colin Li Pi Shan, Benjamin C. Poon, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Timothy T. Wenzel
  • Publication number: 20150322185
    Abstract: The invention provides a solution polymerization process to form an ethylene/?-olefin/nonconjugated polyene interpolymer, said process comprising polymerizing ethylene, an ?-olefin, and a nonconjugated polyene in at least one reactor in the presence of a catalyst selected from Formula I, as described herein; and wherein the polymerization is conducted in a continuous process; and wherein the interpolymer has a rheology ratio (V0.1/V100 at 19° C.) greater than, or equal to, 20.
    Type: Application
    Filed: December 20, 2012
    Publication date: November 12, 2015
    Inventor: Colin Li Pi Shan
  • Publication number: 20150217544
    Abstract: Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).
    Type: Application
    Filed: September 13, 2013
    Publication date: August 6, 2015
    Inventors: Yushan Hu, Burcak Conley, Kim L. Walton, Colin Li Pi Shan, Gary R. Marchand, Rajen M. Patel, Eva-Maria Kupsch, Brian W. Walther
  • Publication number: 20150210838
    Abstract: The invention provides a composition comprising at least the following components: A) an ethylene/?-olefin/nonconjugated polyene interpolymer that has the following properties: i) a rheology ratio (V0.1/V100 at 190° C.) greater than, or equal to, 35; ii) a weight average molecular weight (Mw) greater than, or equal to, 200,000 g/mol; and iii) a CCDB (Chemical Composition Distribution Breadth) less than 7; B) a thermoplastic polymer; C) a vulcanization agent; and wherein the interpolymer comprises incorporated oil. The invention also provides a composition comprising the following: A) a first composition comprising: a) a first ethylene/?-olefin/nonconjugated polyene interpolymer; b) a second ethylene/?-olefin/nonconjugated polyene interpolymer; and wherein the first composition has the following properties: i) an MWD less than, or equal to, 3.5, ii) a Mooney Viscosity (ML (1+4, 125° C.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 30, 2015
    Inventors: Xiaosong Wu, Colin Li Pi Shan
  • Publication number: 20140249286
    Abstract: A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Yunwa Wilson Cheung, David D. Devore, David D. Graf, Phillip D. Hustad, Roger L. Kuhlman, Colin Li Pi Shan, Benjamin C. Poon, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Timothy T. Wenzel
  • Patent number: 8822599
    Abstract: Embodiments of the invention provide crystalline block composites and their use as compatibilizers. The crystalline block composites comprise i) a crystalline ethylene based polymer; ii) a crystalline alpha-olefin based polymer and iii) a block copolymer comprising a crystalline ethylene block and a crystalline alpha-olefin block.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 2, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Colin Li Pi Shan, Kim L. Walton, Gary R. Marchand, Edmund M. Carnahan, Thomas Karjala
  • Patent number: 8822598
    Abstract: Embodiments of the invention provide crystalline block composites and their use as compatibilizers.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 2, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Colin Li Pi Shan, Edmund M. Carnahan, Gary R. Marchand, Kim L. Walton, Thomas Karjala, Jeffrey D. Weinhold