Patents by Inventor Nanguo Liu

Nanguo Liu 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: 20240141210
    Abstract: A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded (meth)acryloxyalkyl-functional group in a pendant position and a silicon bonded aliphatically unsaturated hydrocarbon group. An adhesive article, such as a tape, can be formed by coating the silicone hybrid pressure sensitive adhesive composition on a surface of a substrate and curing said composition via hydrosilylation reaction (B-staged cure) to form a silicone hybrid pressure sensitive adhesive layer on the surface. The silicone hybrid pressure sensitive adhesive layer contains (meth)acryloxyalkyl-functional groups, which can further react and crosslink via exposure to UV radiation (C-staged cure).
    Type: Application
    Filed: March 2, 2021
    Publication date: May 2, 2024
    Inventors: Juyoung Yook, Hojin Choi, Deokgu Kim, Nanguo Liu, Zachary Wenzlick
  • Patent number: 11965127
    Abstract: A cationic surfactant is disclosed. The cationic surfactant has the general formula [Z-D-N(-D1-NR13+)a(R)2-a][X?]a where Z is a siloxane moiety or an unsubstituted hydrocarbyl moiety having from 5 to 20 carbon atoms, D is a covalent bond or a divalent linking group, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, each R1 is an independently selected unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each X is an anion. A method of preparing the cationic surfactant is also disclosed.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 23, 2024
    Assignee: DOW SILICONES CORPORATION
    Inventors: Nanguo Liu, Zachary Wenzlick, Yang Cheng
  • Publication number: 20240084076
    Abstract: A polyfunctional organohydrogensiloxane is prepared using a boron containing Lewis acid as catalyst. The polyfunctional organohydrogensiloxane may be formulated into release coating compositions. Alternatively, the polyfunctional organohydrogensiloxane may be further functionalized with a curable group to form a clustered functional organosiloxane. The clustered functional organosiloxane may be formulated into thermal radical cure adhesive compositions.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 14, 2024
    Inventors: Eric Joffre, Nanguo Liu, Gang Lu, Zhenbin Niu, David Rich
  • Patent number: 11905375
    Abstract: A polyfunctional organohydrogensiloxane and method for its preparation using a boron containing Lewis acid as catalyst is disclosed. A clustered functional organosiloxane may be prepared by a method comprising functionalizing the polyfunctional organohydrogensiloxane. The polyfunctional organohydrogensiloxane and the clustered functional organosiloxane are useful in curable compositions. The polyfunctional organohydrogensiloxane may be used in a release coating composition. The clustered functional organosiloxane may be used in an adhesive composition.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: February 20, 2024
    Assignee: Dow Silicones Corporation
    Inventors: Eric Joffre, Nanguo Liu, Gang Lu, Zhenbin Niu, David Rich
  • Publication number: 20230372224
    Abstract: A fixative polymer is provided, comprising: structural units of monoethylenically unsaturated C1-12 alkyl (meth)acrylate monomer; structural units of monoethylenically unsaturated carboxylic acid containing monomer; structural units of monoethylenically unsaturated hydroxy functionalized C1-16 alkyl (meth)acrylate monomer; and structural units of carbosiloxane monomer of formula (I) wherein a is 0 to 3; wherein d is 0 or 1; wherein R1 is hydrogen, C1-10 alkyl, aryl, —OSi(R9)3 or —X—SiOSi(R9)3; wherein R2 and R9 are hydrogen or C1-10 alkyl; wherein R8 is —OSi(CH3)2OSi(CH3)3; wherein Y is formula (II), (III), (IV) or (V) wherein R4, R6 and R10 are hydrogen or C1-4 alkyl; wherein X, R3 and R5 are a divalent linking group; wherein R7 is a C1-10 alkyl group; wherein b is 0 to 4 and wherein c is 0 or 1.
    Type: Application
    Filed: November 15, 2021
    Publication date: November 23, 2023
    Inventors: Lu Bai, Ligeng Yin, Fanwen Zeng, Rosalind Toth, Jennifer Koenig, Michaeleen Pacholski, Nanguo Liu, Michael Telgenhoff, Tian Lan, Meng Jing, Binghe Gu
  • Patent number: 11820846
    Abstract: A composition comprises: a branched organosilicon compound; an acrylate-functional compound other than the branched organosilicon compound; and optionally a carrier vehicle. The branched organosilicon compound has the following general formula (I): (R1)3Si—X (I); where X comprises a acryloxy-functional moiety, and each R1 is selected from —OSi(R4)3 and R, with the proviso that at least one R1 is —OSi(R4)3; where each R is a substituted or unsubstituted hydrocarbyl group; where each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; where each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; where each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; and where 0?m?100. A method of preparing a copolymer is further provided.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 21, 2023
    Assignees: DOW SILICONES CORPORATION, DOW TORAY CO., LTD.
    Inventors: Nanguo Liu, Tatsuo Souda, Tsunehito Sugiura
  • Publication number: 20230365792
    Abstract: Various embodiments described herein are directed to a polymer composition comprising polyethylene and a reaction product of the copolymerization of the ethylene and (meth)acrylic ester functionalized polysiloxane, and optionally one or more units derived from a termonomer. Articles made from the polymer composition and methods of making the polymer composition are also described.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 16, 2023
    Applicants: Dow Global Technologies LLC, Dow Silicones Corporation
    Inventors: Arkady L. Krasovskiy, John O. Osby, Andrew Heitsch, Eric Joffre, Nanguo Liu, Brian Dorvel, Alexandra Frankel
  • Patent number: 11802174
    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: Grant
    Filed: July 26, 2019
    Date of Patent: October 31, 2023
    Assignees: Rohm and Haas Company, Dow Silicones Corporation
    Inventors: Yang Cheng, Morris Wills, Hailan Guo, Nanguo Liu
  • Publication number: 20230331923
    Abstract: A composition is disclosed, which comprises (A) an organohydrogensiloxane having cyclic siloxane moieties including silicon-bonded hydrogen atoms. The composition further comprises (B) a polyether compound having an aliphatically unsaturated group. Finally, the composition comprises (C) a hydrosilylation catalyst. A silicone polyether surfactant prepared by reacting components (A) and (B) in the presence of component (C) is also disclosed. In addition, an isocyanate-reactive component comprising a polyol and the silicone polyether surfactant is disclosed. A composition comprising the isocyanate-reactive component, an isocyanate component comprising a polyisocyanate, and a catalyst is further disclosed. Finally, a method of preparing an article comprising a polyurethane and/or polyisocyanurate foam, and an article formed from the composition and/or the method, are disclosed.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 19, 2023
    Inventors: Fang ZHANG, Nanguo LIU, Scott BOELTER, Travis SUNDERLAND, Weston TULLOCH, Simon TOTH, Zhenbin NIU, Sachit GOYAL, Adebola OGUNNIYI, Yang CHENG
  • Patent number: 11787908
    Abstract: A polyfunctional organohydrogensiloxane is prepared using a boron containing Lewis acid as catalyst. The polyfunctional organohydrogensiloxane may be formulated into release coating compositions. Alternatively, the polyfunctional organohydrogensiloxane may be further functionalized with a curable group to form a clustered functional organosiloxane. The clustered functional organosiloxane may be formulated into thermal radical cure adhesive compositions.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 17, 2023
    Assignee: DOW SILICONES CORPORATION
    Inventors: Eric Joffre, Nanguo Liu, Gang Lu, Zhenbin Niu, David Rich
  • Publication number: 20230312835
    Abstract: A polydiorganosiloxane having both a silicon bonded aliphatically unsaturated group and a silicon bonded poly(meth)acrylate polymer or copolymer, and method for preparation of this polydiorganosiloxane are disclosed. The method preserves the aliphatically unsaturated groups when grafting the poly(meth)acrylate to the polydiorganosiloxane. This polydiorganosiloxane is useful in hydrosilylation reaction curable compositions, such as pressure sensitive adhesive compositions.
    Type: Application
    Filed: April 25, 2023
    Publication date: October 5, 2023
    Inventors: Jodi Mecca, Nanguo Liu, Eric Joffre, Randy Schmidt, Beth Kelley, Tim Mitchell, James Walker, Wesley Sattler, Bryan McCulloch, Tzu-Chi Kuo
  • Publication number: 20230295193
    Abstract: A method of preparing a multifunctional organosilicon compound is provided. The method comprises reacting (A) an organosilanol compound comprising a functional moiety selected from alkoxysilyl moieties and acryloxy moieties and (B) a hydridosilane compound having at least two hydrolysable groups in the presence of (C) an acetate salt. A multifunctional organosilicon compound prepared according to the method is also provided.
    Type: Application
    Filed: June 30, 2021
    Publication date: September 21, 2023
    Inventors: André YVON-BESSETTE, John ROBERTS, Nanguo LIU, Xiaoyuan ZHOU, Eric JOFFRE
  • Publication number: 20230265290
    Abstract: Curable silicone elastomer compositions having enhanced adhesive properties with respect to a wide variety of substrates are described. The compositions described herein are provided with a phenylmethylpolysiloxane based additive which comprises at least one, alternatively at least two Si—H groups per molecule and at least one, alternatively at least two epoxide functional groups per molecule. Said phenylmethylpolysiloxane based additives provide resulting elastomers with improved heat-humidity stabilization.
    Type: Application
    Filed: June 23, 2021
    Publication date: August 24, 2023
    Inventors: Elizabeth M. SANTOS, Eric JOFFRE, Scott D. BOELTER, Nanguo LIU, Xiaoyuan ZHOU
  • Publication number: 20230240971
    Abstract: A silicone-(meth) acrylate copolymer and methods for the preparation and use of the copolymer are provided. The copolymer is soluble in ethanol under ambient conditions. The copolymer, or homogeneous ethanol solution thereof, may be used as a film forming agent in a personal care composition, such as a foundation.
    Type: Application
    Filed: October 5, 2021
    Publication date: August 3, 2023
    Inventors: Tian Lan, Ligeng Yin, Lu Bai, Fanwen Zeng, Jennifer Koenig, Rosalind Toth, Meng Jing, Michaeleen L. Pacholski, Nanguo Liu
  • Patent number: 11697714
    Abstract: A polydiorganosiloxane having both a silicon bonded aliphatically unsaturated group and a silicon bonded poly(meth)acrylate polymer or copolymer, and method for preparation of this polydiorganosiloxane are disclosed. The method preserves the aliphatically unsaturated groups when grafting the poly(meth)acrylate to the polydiorganosiloxane. This polydiorganosiloxane is useful in hydrosilylation reaction curable compositions, such as pressure sensitive adhesive compositions.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: July 11, 2023
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jodi Mecca, Nanguo Liu, Eric Joffre, Randy Schmidt, Beth Kelley, Timothy Mitchell, James Walker, Wesley Sattler, Bryan McCulloch, Tzu-Chi Kuo
  • Patent number: 11679292
    Abstract: A foam stabilizing composition is disclosed. The composition comprises (A) a siloxane cationic surfactant comprising a cationic moiety having the formula Z1-D1-N(Y)a(R)2?a, wherein Z1 is a siloxane moiety, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR13+, where D is a divalent linking group and each R1 is independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. The composition also comprises (B) an organic cationic surfactant comprising a cationic moiety having the formula Z2-D2-N(Y)b(R)2?b, wherein Z2 is an unsubstituted hydrocarbyl group, D2 is a covalent bond or a divalent linking group, subscript b is 1 or 2, and R, Y, and subscript a, are defined above. An aqueous film-forming foam comprising the composition and method of using the same are also disclosed.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: June 20, 2023
    Assignees: DOW SILICONES CORPORATION, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Nanguo Liu, Zachary Wenzlick, Brian Harkness, Jon Hannington, Scott Miller, Gerald Witucki, Brian Dorvel
  • Publication number: 20230174721
    Abstract: A (meth)acrylate functional silicone and method for its preparation are provided. This (meth)acrylate functional silicone may have pendant poly(meth)acrylate-functional groups. This (meth)acrylate functional silicone may have terminal alkenyl groups. This (meth)acrylate functional silicone may be used in pressure sensitive adhesives.
    Type: Application
    Filed: April 13, 2021
    Publication date: June 8, 2023
    Inventors: Nanguo Liu, Zachary Wenzlick
  • Patent number: 11643506
    Abstract: Polyorganosiloxanes and methods for their preparation are disclosed. The polyorganosiloxanes are useful in curable compositions. The polyorganosiloxanes may have up to 9 silicon bonded hydrogen atoms, or other curable groups, per molecule.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 9, 2023
    Assignee: Dow Silicones Corporation
    Inventors: Gang Lu, Nanguo Liu, Zhenbin Niu, David Rich, Michael Telgenhoff, Michael Wang
  • Publication number: 20230095031
    Abstract: A foam stabilizing composition is disclosed. The composition comprises (A) a siloxane cationic surfactant comprising a cationic moiety having the formula Z1-D1-N(Y)a(R)2?a, wherein Z1 is a siloxane moiety, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR13+, where D is a divalent linking group and each R1 is independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. The composition also comprises (B) an organic cationic surfactant comprising a cationic moiety having the formula Z2-D2-N(Y)b(R)2?b, wherein Z2 is an unsubstituted hydrocarbyl group, D2 is a covalent bond or a divalent linking group, subscript b is 1 or 2, and R, Y, and subscript a, are defined above.
    Type: Application
    Filed: December 22, 2020
    Publication date: March 30, 2023
    Inventors: Nanguo LIU, Zachary WENZLICK, Brian HARKNESS, Jon HANNINGTON, Scott MILLER, Gerald WITUCKI, Brian DORVEL
  • Publication number: 20230096043
    Abstract: The present invention is a composition comprising an aqueous dispersion of copolymer particles comprising structural units of a) an acrylate monomer; b) an acid monomer; and c) a siloxane-acrylate monomer of formula I: where R, R1, R2, Y and x are defined herein. The composition, which also comprises a nonionic and anionic surfactant as described herein, is useful in a variety of applications ranging from architectural coatings to personal care products.
    Type: Application
    Filed: February 10, 2021
    Publication date: March 30, 2023
    Inventors: Hilda G. Buss, Matthew Carter, Ralph C. Even, Jason S. Fisk, Matthew Jeletic, Tzu-Chi Kuo, Tian Lan, Nanguo Liu, Bryan L. McCulloch, Jodi Mecca, Arash R. Nowbahar, Tanvi S. Ratani, Muhunthan Sathiosatham, Richard P. Woodworth, Fanwen Zeng