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: 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: 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
  • 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
  • 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
  • Patent number: 10160852
    Abstract: A polymer blend comprising from 20 to 90 parts by weight, based on the total weight of the polymer blend, polyvinyl chloride resin; and from 10 to 80 parts by weight, based on the total weight of the polymer blend, a flexible acrylic polymer is provided. Also provided are films or sheets or pipe made from the polymer blend, a capstock made from the film and a method for preparing a film.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 25, 2018
    Assignee: Rohm and Haas Company
    Inventor: Hailan Guo
  • Publication number: 20180305510
    Abstract: A multi-stage polymer composition comprising a crosslinked core having a Tg of from ?85 to ?10° C.; an intermediate region which comprises one or more intermediate layers, wherein each of the intermediate layers comprises from 88.5 to 99.9 weight percent of units derived from a one or more monomers selected from the group consisting of alkyl (meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, a graft-linking monomer, or a combination of two or more thereof, optionally from 0 to 2 weight percent units derived from one or more chain transfer agents; wherein there is a compositional gradient between the intermediate layers such that the Tg transitions from ?30° C. to 70° C. over the width of the intermediate region, and an outermost layer which has a Tg of from 40° C. to 110° C. is provided.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Hailan Guo, Steven J. Broadwater, Veera D. Nelliappan
  • Patent number: 10040915
    Abstract: A multi-stage polymer composition comprising a crosslinked core having a Tg of from ?85 to ?10° C.; an intermediate region which comprises one or more intermediate layers, wherein each of the intermediate layers comprises from 88.5 to 99.9 weight percent of units derived from a one or more monomers selected from the group consisting of alkyl (meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, a graft-linking monomer, or a combination of two or more thereof, optionally from 0 to 2 weight percent units derived from one or more chain transfer agents; wherein there is a compositional gradient between the intermediate layers such that the Tg transitions from ?30° C. to 70° C. over the width of the intermediate region, and an outermost layer which has a Tg of from 40° C. to 110° C. is provided.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: August 7, 2018
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Steven J. Broadwater, Veera D. Nelliappan
  • Publication number: 20170253734
    Abstract: A polymer blend comprising from 20 to 90 parts by weight, based on the total weight of the polymer blend, polyvinyl chloride resin; and from 10 to 80 parts by weight, based on the total weight of the polymer blend, a flexible acrylic polymer is provided. Also provided are films or sheets or pipe made from the polymer blend, a capstock made from the film and a method for preparing a film.
    Type: Application
    Filed: October 20, 2015
    Publication date: September 7, 2017
    Inventor: Hailan Guo
  • Patent number: 9156976
    Abstract: A multi-stage polymer composition comprising a crosslinked core component, one or more intermediate layer components and an outermost layer component in which the refractive index of each of the crosslinked core, the one or more intermediate layers and the outermost layer are within 2% of the refractive index of each adjacent component; wherein the crosslinked core component comprises from 75 to 99.9 weight percent of units derived from at least one first monomer selected from the group consisting of alkyl, aryl, and cycloalkyl (meth)acrylate monomer, optionally from 1 to 20 weight percent of units derived from a second monomer selected from the group consisting vinyl monomers; and from 0.1 to 5 weight percent of units derived from cross-linking monomers, graft-linking monomers, or combination thereof, and has a Tg of from ?75 to ?35° C.; wherein each of the one or more intermediate layer components comprises from 71 to 99.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: October 13, 2015
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Veera Nelliappan, Eric G. Lundquist
  • Publication number: 20150183944
    Abstract: A multi-stage polymer composition comprising a crosslinked core having a Tg of from ?85 to ?10° C.; an intermediate region which comprises one or more intermediate layers, wherein each of the intermediate layers comprises from 88.5 to 99.9 weight percent of units derived from a one or more monomers selected from the group consisting of alkyl(meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, a graft-linking monomer, or a combination of two or more thereof, optionally from 0 to 2 weight percent units derived from one or more chain transfer agents; wherein there is a compositional gradient between the intermediate layers such that the Tg transitions from ?30° C. to 70° C. over the width of the intermediate region, and an outermost layer which has a Tg of from 40° C. to 110° C. is provided.
    Type: Application
    Filed: August 5, 2013
    Publication date: July 2, 2015
    Applicant: Rohm and Haas Company
    Inventors: Hailan Guo, Steven J. Broadwater, Veera D. Nelliappan
  • Publication number: 20150168604
    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: Application
    Filed: August 5, 2013
    Publication date: June 18, 2015
    Inventors: Hailan Guo, Eric Lundquist