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: 20220119421
    Abstract: A branched organosilicon compound (“compound”) having the general formula (R1)3SiX—NR2-D-Z(R7)a is provided. In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; 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; where each R is independently a substituted or unsubstituted hydrocarbyl group; and where 0?m?100; each of X and D is an independently selected divalent linking group; each R2 and R7 is an independently selected substituted or unsubstituted hydrocarbyl group or H; Z is O or N; and subscript a is the valency of Z. Also provided is a method of preparing the compound and a composition including the compound.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 21, 2022
    Inventors: Nanguo LIU, Michael TELGENHOFF
  • Publication number: 20220119420
    Abstract: A method of preparing an acryloxy-functional organosilicon compound is provided. The method comprises reacting (A) an initial (C) a catalyst. The initial organosilicon compound (A) has one alcohol functional group (i.e., is monohydroxyl functional). The catalyst (C) has the formula M[RC(O)CHC(O)R]4, where M is a group IV transition metal and each R is an independently selected substituted or unsubstituted hydrocarbyl group. An acryloxy-functional organo silicon compound prepared by the method is also provided. The acryloxy-functional organosilicon compound is prepared in increased purity, without relying on toxic catalysts.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 21, 2022
    Inventors: Jason FISK, Nanguo LIU, Muhunthan SATHIOSATHAM, Michael TELGENHOFF, Thu VI
  • Publication number: 20220119597
    Abstract: A branched organosilicon compound (“compound”) is provided having the general formula: (R1)3Si—X—NR2R3, where X is a divalent linking group; R2 is H or R; R3 comprises an acryloxy moiety; each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; 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; and 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; 0?m?100; and each R is a substituted or unsubstituted hydrocarbyl group. Also provided is a method of preparing the compound, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 21, 2022
    Inventors: Nanguo LIU, Tatsuo SOUDA, Tsunehito SUGIURA, Michael TELGENHOFF
  • Publication number: 20220112338
    Abstract: A branched organosilicon compound is provided having the general formula: (R1)3—X—[SiR20]n—SiR2R3. In the formula: each R is independently a substituted or unsubstituted hydrocarbyl group; each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0?m?100; X is a divalent linking group; 1?n?10; and R3 has the general -D-Op—(CqH2qO)r—R8. In R3, D is a divalent hydrocarbon linking group, subscript p is 0 or 1, subscript q is independently selected from 2 to 4 in each moiety indicated by subscript r, subscript r is from 1 to 500, and R8 is selected from substituted or unsubstituted hydrocarbyl groups and H.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 14, 2022
    Inventors: Nanguo LIU, Zachary WENZLICK
  • Publication number: 20220112224
    Abstract: A branched organosilicon compound (“compound”) having the general formula (R1)3Si—X—Y is provided. In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R is independently a substituted or unsubstituted hydrocarbyl group; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3; 0<m?100; X is a divalent linking group; and Y is selected from one of formulas (1)-(111) described herein. Also provided is a method of preparing the compound via hydrosilylation reaction, a copolymer comprising the reaction product of the compound and a second compound reactive with the compound, a method of forming the copolymer, and a composition including at least one of the compound and the copolymer.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 14, 2022
    Inventors: Matthew JELETIC, Nanguo LIU
  • Publication number: 20220112322
    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 R 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: Application
    Filed: December 27, 2019
    Publication date: April 14, 2022
    Inventors: Nanguo LIU, Tatsuo SOUDA, Tsunehito SUGIURA
  • Publication number: 20220106337
    Abstract: A branched organosilicon compound is provided which has the general formula (R1)3 Si—X—NR2—X1—NR22- In the formula: each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R1 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; with the proviso that at least one of R4, R1 and R6 is —[OSiR2]mOSiR3; 0<m?100. Each R is independently a substituted or unsubstituted hydrocarbyl group, e.g. a methyl group. Each of X and X1 is an independently selected divalent linking group, e.g. a divalent hydrocarbon linking group. Each R2 independently comprises a substituted or unsubstituted hydrocarbyl group, a polyether group, or H. At least one R2 comprises a polyether group. A method of preparing the branched organosilicon compound and a composition comprising the branched organosilicon compound are also provided.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 7, 2022
    Inventors: Nanguo LIU, Zachary WENZLICK
  • Publication number: 20220098222
    Abstract: A multifunctional organosilicon compound is provided which has the general formula XSi([OSiR2]p-0-SiR2Y)a(R1)3-a— ln the formula, X is selected from H and ethylenically un saturated moieties; each Y independently comprises a functional moiety selected from alkoxysilyl moieties, acryloxy moieties, and epoxide moieties; each R is an independently selected hydrocarbyl group; each R1 is an independently selected hydrocarbyl group; subscript a is 1, 2, or 3; and each subscript b is independently 0, 1, or 2. A method of preparing the multifunctional organosilicon compound is also provided. The method comprises reacting (A) an organosilanol compound and (B) a silane compound having at least two hydrolysable groups. A functionalized siloxane compound prepared from the multifunctional organosilicon compound, a method of preparing the functionalized siloxane compound, and an adhesive comprising the functionalized siloxane compound are also provided.
    Type: Application
    Filed: December 30, 2019
    Publication date: March 31, 2022
    Inventors: Donald ELDRED, Matthew JELETIC, Eric JOFFRE, Nanguo LIU, Cameron KADLECK, Matthew OLSEN, John ROBERTS, Nick E. SHEPHARD, Ryan THOMAS, Zachary WENZLICK
  • Patent number: 11279847
    Abstract: A method of preparing a composition for forming a release coating is disclosed. The method comprises preparing a reaction product comprising a polyorganohydrogensiloxane compound having cyclic SiH-functional branching groups interconnected by linear polydiorganosiloxane segments (the “branched cyclic polyorganohydrogensiloxane compound”), by combining together (A) a hydroxyl terminated polydiorganosiloxane and (B) a cyclic polyorganohydrogensiloxane, in the presence of (C) a boron containing Lewis acid and a solvent. A release coating composition including the reaction product comprising the branched cyclic polyorganohydrogensiloxane is also disclosed. The reaction product may be combined with or prepared in the presence of a polyorganohydrogensiloxane diluent and stripped of solvent to prepare the composition as a blend of the branched cyclic polyorganohydrogensiloxane and the polyorganohydrogensiloxane diluent for use in solventless-curable compositions.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 22, 2022
    Assignee: DOW SILICONES CORPORATION
    Inventors: Zhenbin Niu, Nanguo Liu, Travis Sunderland, David Rich, Pierre Chevalier, Sze-Sze Ng, Alex Knott
  • Publication number: 20220081565
    Abstract: A method of preparing an acrylate-functional branched organosilicon compound (“compound”) is provided, and comprises reacting (A) a branched organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst, wherein component (A) has the general formula X—Si(R1)3, where X comprises a halogen-functional moiety and each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; each R is an independently selected hydrocarbyl group; and 0?m?100; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3. The compound prepared by the method, a copolymer comprising the reaction product of the compound and a second compound, a method of forming the copolymer, and a composition comprising the copolymer are each also provided.
    Type: Application
    Filed: December 31, 2019
    Publication date: March 17, 2022
    Inventor: Nanguo LIU
  • Publication number: 20220056317
    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: March 13, 2020
    Publication date: February 24, 2022
    Inventors: Jodi Mecca, Nanguo Liu, Eric Joffre, Randall Schmidt, Beth Kelley, Timothy Mitchell, James Walker, Wesley Sattler, Bryan McCulloch, Tzu-Chi Kuo
  • Publication number: 20220041812
    Abstract: A method for preparing functionalized polyorganosiloxanes is disclosed. The method includes 1) combining starting materials including A) a boron—containing Lewis acid catalyst, and B) an organosilicon compound having an average, per molecule of at least 1 silicon bonded groups of the formula —OR2; wherein each R2 is an independently selected monovalent hydrocarbon group of 1 to 6 carbon atoms, thereby forming a catalyzed mixture; and thereafter 2) adding the catalyzed mixture into a starting material including C) an organohydrogensiloxane having at least 1 silicon bonded hydrogen atom per molecule, thereby preparing a product comprising the functionalized polyorganosiloxane and a by-product comprising HR2.
    Type: Application
    Filed: December 4, 2019
    Publication date: February 10, 2022
    Inventors: Michael Telgenhoff, Eric Joffre, Nanguo Liu
  • Publication number: 20220033589
    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: Application
    Filed: December 4, 2019
    Publication date: February 3, 2022
    Inventors: Gang Lu, Nanguo Liu, Zhenbin Niu, David Rich, Michael Telgenhoff, Michael Wang
  • Publication number: 20220025125
    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: December 4, 2019
    Publication date: January 27, 2022
    Inventors: Eric Joffre, Nanguo Liu, Gang Lu, Zhenbin Niu, David Rich
  • Publication number: 20220025124
    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: Application
    Filed: December 4, 2019
    Publication date: January 27, 2022
    Inventors: Eric Joffre, Nanguo Liu, Gang Lu, Zhenbin Niu, David Rich
  • Publication number: 20210395432
    Abstract: A composition for preparing polyisocyanurate and polyurethane foams is provided, comprising A) an isocyanate-reactive component, B) a polyisocyanate component and C) a branched siloxane comprising at least three trimethylsiloxy groups. A method for preparing the polyisocyanurate and polyurethane foams, and foams prepared thereby are also provided.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 23, 2021
    Inventors: Yanli Feng, Simon Toth, Li Ye, Wei Tang, Nanguo Liu
  • Publication number: 20210371700
    Abstract: A method of preparing a composition for forming a release coating is disclosed. The method comprises preparing a reaction product comprising a polyorganohydrogensiloxane compound having cyclic SiH-functional branching groups interconnected by linear polydiorganosiloxane segments (the “branched cyclic polyorganohydrogensiloxane compound”), by combining together (A) a hydroxyl terminated polydiorganosiloxane and (B) a cyclic polyorganohydrogensiloxane, in the presence of (C) a boron containing Lewis acid and a solvent. A release coating composition including the reaction product comprising the branched cyclic polyorganohydrogensiloxane is also disclosed. The reaction product may be combined with or prepared in the presence of a polyorganohydrogensiloxane diluent and stripped of solvent to prepare the composition as a blend of the branched cyclic polyorganohydrogensiloxane and the polyorganohydrogensiloxane diluent for use in solventless-curable compositions.
    Type: Application
    Filed: December 2, 2020
    Publication date: December 2, 2021
    Inventors: Zhenbin NIU, Nanguo LIU, Travis SUNDERLAND, David RICH, Pierre CHEVALIER, Sze-Sze NG, Alex KNOTT
  • 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: 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: 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