Patents by Inventor Hailan Guo

Hailan Guo 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: 20220153984
    Abstract: A multi-stage flexible acrylic resin comprises a branched polymer which is a reaction product of reactants comprising one or more monoethylenically unsaturated ester monomers, a chain transfer agent in an amount of 0.1 to 10 wt. %, and a crosslinker in an amount of 0.1 to 10 wt. %, wherein wt. % is based on total amount of reactants, provided the amount of crosslinker in moles is less than the amount of chain transfer agent in moles. A process for producing the multi-stage flexible acrylic resin is also disclosed.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 19, 2022
    Inventors: Pu Luo, Hailan Guo, Morris Wills
  • Patent number: 11279787
    Abstract: Provided is a process for forming a polymer composition, wherein the process comprises (a) providing a slurry in an aqueous medium, wherein the slurry comprises (i) pellets comprising a polyolefin block copolymer, wherein the block copolymer comprises a crystalline block and an amorphous block, (ii) one or more vinyl monomers, (iii) one or more initiator, wherein the slurry comprises, by weight based on the total weight of the slurry, 0 to 0.01% of all surfactants, and 0 to 0.01% of all water-soluble polymers; and (b) polymerizing the one or more vinyl monomers.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 22, 2022
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Morris Wills
  • Patent number: 11261278
    Abstract: Provided is a polyolefin block copolymer having covalently attached residues of one or more vinyl monomer selected from the group consisting of one or more (meth)acrylic monomers, one or more vinyl aromatic monomers, and mixtures thereof.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 1, 2022
    Assignee: Rohm And Haas Company
    Inventors: Hailan Guo, Morris Wills
  • Patent number: 11156746
    Abstract: A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymer particles, wherein the diffuser polymer particles are characterized by an average diameter from 2 to 20 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a crosslinking level greater than 4%; and wherein the diffuser polymer particles comprise units derived from at least one alkyl(meth)acrylate monomer, from 5 wt % to 25 wt % units derived from a crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers and combinations thereof, optionally, units derived from one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes; and wherein from 0.1 to 20 wt % one or more performance additives dispersed within the diffuser polymer particles is provided.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 26, 2021
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Eric Lundquist
  • Publication number: 20210324187
    Abstract: Provided is a collection of polymer particles comprising (I) a plurality of acrylic particles (I) each comprising (a) an acrylic core polymer (Ia) comprising (i) polymerized units of one or more monovinyl acrylic monomers (Iai), (ii) polymerized units of one or more Si-free graftlinkers (Iaii), (b) a shell polymer (Ib), (II) a plurality of hybrid polymer particles (II), each comprising (a) a core polymer (IIa) comprising (i) polymerized units of one or more silicon-containing monomers (IIai); (ii) optionally, polymerized units of one or more monovinyl acrylic monomers (IIaii); and (iii) polymerized units of one or more Si-free graftlinkers (IIaiii); (b) a shell polymer (IIb) comprising polymerized units of one or more acrylic monomers (IIb).
    Type: Application
    Filed: July 26, 2019
    Publication date: October 21, 2021
    Applicants: Rohm and Haas Company, Dow Silicones Corporation
    Inventors: Morris Wills, Hailan Guo, Nanguo Liu, Jeffrey Rastello
  • Publication number: 20210317248
    Abstract: A method of making a collection of polymer particles comprising (A) performing free radical polymerization (A) on an emulsion (E1) that comprises a collection of droplets dispersed in an aqueous medium, wherein the droplets comprise (i) one or more Si-containing monomers; (ii) one or more monovinyl acrylic monomers; and (iii) one or more graftlinkers that have no silicon atoms; to form a dispersion (D1) of core polymer particles in the aqueous medium; (B) in the presence of the dispersion (D1) of core polymer particles, performing aqueous emulsion polymerization (B) on one or more acrylic monomers.
    Type: Application
    Filed: July 26, 2019
    Publication date: October 14, 2021
    Inventors: Yang Cheng, Morris Wills, Hailan Guo, Nanguo Liu
  • Publication number: 20210317247
    Abstract: Provided is a polymer particle comprising (a) a core polymer comprising (i) polymerized units of one or more Si-containing monomers; (ii) polymerized units of one or more monovinyl acrylic monomers (ii); and (iii) polymerized units of one or more graftlinkers that have no silicon atoms; (b) a shell polymer comprising polymerized units of one or more acrylic monomers. Also provided is a composition comprising polyvinyl chloride and a plurality of the polyer particles.
    Type: Application
    Filed: July 26, 2019
    Publication date: October 14, 2021
    Inventors: Yang Cheng, Morris Wills, Hailan Guo, Nanguo Liu
  • Publication number: 20210269575
    Abstract: Provided is a method of making a collection of polymer particles comprising (A) providing a dispersion (D1) of particles of core polymer (IIa) in an aqueous medium, wherein core polymer (IIa) comprises (i) polymerized units of one or more silicone monomers (IIai); (ii) optionally, polymerized units of one or more monovinyl acrylic monomers (IIaii); and (iii) polymerized units of one or more Si-free graftlinkers (IIaiii); wherein the dispersion (D1) comprises micelles of one or more surfactant, (B) producing a latex (L1) by performing an emulsion polymerization process (B) that produces particles of core polymer (Ia) dispersed in the aqueous medium, wherein latex (L1) comprises dispersed particles of core polymer (Ia) and dispersed particles of core polymer (IIa) in the aqueous medium, (C) producing a latex (L2) by performing an emulsion polymerization process (C) by a process comprising adding a monomer emulsion (E3) to latex (L1).
    Type: Application
    Filed: July 26, 2019
    Publication date: September 2, 2021
    Inventors: Morris Wills, Hailan Guo, Nanguo Liu, Jeffrey Rastello
  • Publication number: 20210246293
    Abstract: Provided is a polymeric composition comprising a continuous phase that comprises a matrix polymer and a dispersed phase comprising polymer particles, wherein the polymer particles comprise: (a) 30% to 85% by weight, based on the dry weight of the polymer particles, a core polymer having Tg of ?35° C. or lower; (b) 15% to 50% by weight, based on the dry weight of the polymer particles, an intermediate polymer having Tg that is 20° C. or lower and that is higher than the Tg of the core polymer by 10° C. or more; and (c) 5% to 30% by weight, based on the dry weight of the polymer particles, a shell polymer having Tg of 50° C. or higher; wherein the shell polymer comprises polymerized units of all vinyl aromatic monomers in an amount of 1% or less, by weight based on the weight of the shell polymer. Also provided is a method of making the composition.
    Type: Application
    Filed: March 4, 2019
    Publication date: August 12, 2021
    Inventors: Hailan Guo, Pu Luo, Morris Wills
  • Publication number: 20210054183
    Abstract: Provided is polymer particle comprising (a) 40% to 85% by weight, based on the dry weight of the polymer particle, a core polymer having Tg of ?35° C. or lower; (b) 15% to 50% by weight, based on the dry weight of the polymer particle, an intermediate polymer having Tg that is 20° C. or lower and that is higher than the Tg of the core polymer by 10° C. or more; (c) 5% to 30% by weight, based on the dry weight of the polymer particle, a shell polymer having Tg of 50° C. or higher; wherein the shell polymer comprises polymerized units of all vinyl aromatic monomers in an amount of 1% or less, by weight based on the weight of the shell polymer.
    Type: Application
    Filed: March 4, 2019
    Publication date: February 25, 2021
    Inventors: Hailan Guo, Pu Luo, Morris Wills
  • Patent number: 10920060
    Abstract: Provided are multi-stage polymer compositions comprising (a) cross-linked core comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, and (ii) one or more cross-linking monomers, graft-linking monomers, and combinations thereof, (b) a first intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, and (ii) cross-linking monomers, graft-linking monomers, and combinations thereof, (c) a second intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, and (ii) one or more chain transfer agents, and (d) a shell comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, (ii) one or more monomers selected from the group consisting of acid functionalized monomers, hydroxyl-functionalized monomers, and combinations thereof, and (iii) optionally, of one or more chain transfer agents.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: February 16, 2021
    Assignee: Rohm and Haas Company
    Inventor: Hailan Guo
  • Publication number: 20210017372
    Abstract: A polyvinyl chloride-based composition including (a) a polyvinyl chloride resin, (b) a flexible acrylic resin; and (c) a plasticizer; an article made from the above composition wherein the article has (i) a cold temperature ductility at a temperature of less than ?30° C. after heat aging at a temperature of 120° C.
    Type: Application
    Filed: April 3, 2019
    Publication date: January 21, 2021
    Inventors: Parvinder S. Walia, Hailan Guo
  • Publication number: 20200385505
    Abstract: Provided is a polyolefin block copolymer having covalently attached residues of one or more vinyl monomer selected from the group consisting of one or more (meth)acrylic monomers, one or more vinyl aromatic monomers, and mixtures thereof.
    Type: Application
    Filed: December 3, 2018
    Publication date: December 10, 2020
    Inventors: Hailan Guo, Morris Wills
  • Patent number: 10851234
    Abstract: Provided is a polymer composition comprising an acrylic resin and a compound (II) wherein R1, R2, R3, and R4 is each independently hydrogen or an organic group having 1 or more carbon atoms, R5 is an alkylene group of 1 to 4 carbon atoms and n is from 1 to 20.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: December 1, 2020
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Carlos A. Cruz
  • Patent number: 10851233
    Abstract: Provided is a polymer composition comprising an acrylic resin and a compound (I) wherein R1, R2, R3, and R4 is each independently hydrogen or an organic group having 1 or more carbon atoms, and n is from 1 to 20.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 1, 2020
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Carlos A. Cruz
  • Publication number: 20200369817
    Abstract: Provided is a process for forming a polymer composition, wherein the process comprises (a) providing a slurry in an aqueous medium, wherein the slurry comprises (i) pellets comprising a polyolefin block copolymer, wherein the block copolymer comprises a crystalline block and an amorphous block, (ii) one or more vinyl monomers, (iii) one or more initiator, wherein the slurry comprises, by weight based on the total weight of the slurry, 0 to 0.01% of all surfactants, and 0 to 0.01% of all water-soluble polymers; and (b) polymerizing the one or more vinyl monomers.
    Type: Application
    Filed: December 3, 2018
    Publication date: November 26, 2020
    Inventors: Hailan Guo, Morris Wills
  • Publication number: 20200369866
    Abstract: A composition and a method for preparing a polymer composite article. The composition comprises (A) a filler in an amount of from 10 to 90 wt. %. The composition also comprises (B) a polymer in an amount of from 10 to 90 wt. %, wherein the (B) polymer comprises a polyvinyl. Further, the composition comprises (C) an organopolysiloxane in an amount of from greater than 0 to 10 wt. %; the (C) organopolysiloxane having at least one silicon-bonded hydroxyl group and a viscosity of from 1,000 to 60,000 mPa·s at 25° C. The ranges for components (A)-(C) are based on the total weight of components (A), (B) and (C) in the composition.
    Type: Application
    Filed: February 1, 2019
    Publication date: November 26, 2020
    Inventors: Keith BRUCE, Igor CHORVATH, Marc-Andre COURTEMANCHE, Jon V. DEGROOT, JR., Sean GAAL, Craig GROSS, Hailan GUO, James KEENIHAN, Shawn MEALEY, Scott MILLER, Tom PARSONS, Steven R. RAPACKI, Andrew SCHLADER, Cristina SERRAT, Lauren TONGE
  • Publication number: 20200255648
    Abstract: Provided is a polymer composition comprising an acrylic resin and a compound (I) wherein R1, R2, R3, and R4 is each independently hydrogen or an organic group having 1 or more carbon atoms, and n is from 1 to 20.
    Type: Application
    Filed: December 13, 2016
    Publication date: August 13, 2020
    Inventors: Hailan Guo, Carlos A. Cruz
  • Publication number: 20190211197
    Abstract: Provided is a polymer composition comprising an acrylic resin and a compound (II) wherein R1, R2, R3, and R4 is each independently hydrogen or an organic group having 1 or more carbon atoms, R5 is an alkylene group of 1 to 4 carbon atoms and n is from 1 to 20.
    Type: Application
    Filed: February 13, 2019
    Publication date: July 11, 2019
    Inventors: Hailan Guo, Carlos A. Cruz
  • Publication number: 20190119484
    Abstract: Provided are multi-stage polymer compositions comprising (a) cross-linked core comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, and (ii) one or more cross-linking monomers, graft-linking monomers, and combinations thereof, (b) a first intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, and (ii) cross-linking monomers, graft-linking monomers, and combinations thereof, (c) a second intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, and (ii) one or more chain transfer agents, and (d) a shell comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, (ii) one or more monomers selected from the group consisting of acid functionalized monomers, hydroxyl-functionalized monomers, and combinations thereof, and (iii) optionally, of one or more chain transfer agents.
    Type: Application
    Filed: May 18, 2017
    Publication date: April 25, 2019
    Inventor: Hailan Guo